Merge pull request 'Add public repository interfaces and subclassable adapter CRUD API.' (#11) from cursor/public-repository-api into main

Reviewed-on: https://gitea.lille-vemmelund.dk/brian/python-repositories/pulls/11

.gitea/workflows/code-quality.yml

@@ -24,7 +24,7 @@ jobs:
       - name: Install dependencies
         env:
           UV_LINK_MODE: copy
-        run: uv sync --extra redis
+        run: uv sync --all-extras
 
       - name: Type check with mypy
         run: uv run mypy .
@@ -39,6 +39,4 @@ jobs:
         run: uv run pyupgrade --py313-plus $(git ls-files '*.py') && git diff --exit-code
 
       - name: Prettier format
-        run: |
+        run: uv run pre-commit run prettier --all-files
-          npm install --save-dev --save-exact prettier
-          npx prettier --check .

.gitea/workflows/test.yml

@@ -24,7 +24,7 @@ jobs:
       - name: Install dependencies
         env:
           UV_LINK_MODE: copy
-        run: uv sync --extra redis
+        run: uv sync --all-extras
 
       - name: Run pytest
         env:

README.md

@@ -1,17 +1,114 @@
 # python-repositories
 
-Various python repository interfaces exposed as a python package.
+Unified repository interfaces and technology-specific adapters for Python projects.
+
+Subclass an adapter in your own repository to add domain-specific methods while reusing connection management and CRUD operations.
+
+## Architecture
+
+| Layer            | Responsibility                                                    |
+| ---------------- | ----------------------------------------------------------------- |
+| **Interfaces**   | Abstract contracts for connection, context, and CRUD              |
+| **Adapters**     | Technology-specific base classes (`RedisAdapter`, `MinioAdapter`) |
+| **Your project** | Subclass an adapter and add domain methods                        |
 
 ## Optional dependencies
 
-This package supports interacting with multiple different backends:
+Install with the extras you need:
-
-- Redis
-- Mongo
-- MinIO
-
-To add support for a specific backend install this package with one or more of these optional packages:
 
 ```bash
-uv add python-repositories[redis, mongo, minio]
+uv add python-repositories[redis]
+uv add python-repositories[minio]
+uv add python-repositories[redis,minio]
 ```
+
+### Redis (`JsonRepositoryInterface`)
+
+Requires Redis with the RedisJSON module (e.g. redis-stack).
+
+| Environment variable | Description                                          |
+| -------------------- | ---------------------------------------------------- |
+| `REDIS_URI`          | Redis connection URL (e.g. `redis://localhost:6379`) |
+
+### MinIO (`ObjectRepositoryInterface`)
+
+| Environment variable | Description                                 |
+| -------------------- | ------------------------------------------- |
+| `MINIO_ENDPOINT`     | MinIO server endpoint                       |
+| `MINIO_ACCESS_KEY`   | Access key                                  |
+| `MINIO_SECRET_KEY`   | Secret key                                  |
+| `MINIO_BUCKET`       | Bucket name (created on connect if missing) |
+
+## Quick start
+
+### JSON documents with Redis
+
+```python
+from python_repositories.examples.user_json_repository import UserJsonRepository
+
+with UserJsonRepository() as repo:
+    repo.save_user("alice", {"name": "Alice", "email": "[email protected]"})
+    user = repo.get_user("alice")
+    repo.delete_user("alice")
+```
+
+### Binary objects with MinIO
+
+```python
+from io import BytesIO
+
+from python_repositories.examples.artifact_object_repository import (
+    ArtifactObjectRepository,
+)
+
+with ArtifactObjectRepository() as repo:
+    repo.store_artifact("report-1", BytesIO(b"pdf bytes here"))
+    data = repo.get_artifact("report-1")
+```
+
+### Subclassing in your own project
+
+```python
+from python_repositories import RedisAdapter
+
+class UserRepository(RedisAdapter):
+    def _key(self, user_id: str) -> str:
+        return f"user:{user_id}"
+
+    def get_user(self, user_id: str) -> dict | None:
+        return self.get(self._key(user_id))
+
+    def save_user(self, user_id: str, user: dict) -> None:
+        self.set(self._key(user_id), user)
+```
+
+## Public API
+
+```python
+from python_repositories import (
+    ConnectionAwareInterface,
+    ContextAwareInterface,
+    JsonRepositoryInterface,
+    ObjectRepositoryInterface,
+    RedisAdapter,
+    MinioAdapter,
+)
+```
+
+## Development
+
+```bash
+uv sync --all-extras
+uv run pre-commit install   # once per clone — runs hooks on git commit
+uv run pytest tests/integration/ -v
+```
+
+`pre-commit` is included in the dev dependency group. `uv sync` installs the CLI, but git does not run hooks until you install them with `pre-commit install` (one time per clone). After that, commits run the checks defined in [`.pre-commit-config.yaml`](.pre-commit-config.yaml) (ruff, mypy, pyupgrade, prettier, and general file hygiene).
+
+To run all hooks manually without committing:
+
+```bash
+uv run pre-commit run --all-files
+```
+
+Integration tests require Docker (testcontainers).

pyproject.toml

@@ -22,22 +22,33 @@ dependencies = [
 redis = [
     "redis>=6.4.0",
 ]
+minio = [
+    "minio>=7.2.16",
+]
+
+[build-system]
+requires = ["hatchling"]
+build-backend = "hatchling.build"
+
+[tool.pytest.ini_options]
+testpaths = ["tests"]
+pythonpath = ["."]
 
 [tool.uv.sources]
 python-utils = { index = "gitea" }
 
 [[tool.uv.index]]
 name = "threadripper-proxpi-cache"
-url = "http://10.0.0.2:5001/index/"
+url = "https://proxpi.lille-vemmelund.dk/index/"
 default = true
 
 [[tool.uv.index]]
 name = "gitea"
-url = "https://gitea.gt-proj.com/api/packages/brian/pypi/simple/"
+url = "https://gitea.lille-vemmelund.dk/api/packages/brian/pypi/simple/"
 explicit = true
 
 [tool.mypy]
-python_version = "3.10"
+python_version = "3.12"
 warn_return_any = true  # nudge to use stricter types
 warn_unused_configs = true  # nudge to remove unused configs
 disallow_untyped_defs = true  # disallow untyped function definitions
@@ -57,6 +68,10 @@ namespace_packages = true  # enable namespace packages
 module = "testcontainers.*"
 ignore_missing_imports = true
 
+[[tool.mypy.overrides]]
+module = "minio.*"
+ignore_missing_imports = true
+
 [dependency-groups]
 dev = [
     "mypy>=1.17.1",

python_repositories/__init__.py

@@ -1,6 +1,18 @@
 """python_repositories: Unified repository interfaces and adapters."""
 
-from . import adapters
+from .adapters import MinioAdapter, RedisAdapter
-from . import interfaces
+from .interfaces import (
+    ConnectionAwareInterface,
+    ContextAwareInterface,
+    JsonRepositoryInterface,
+    ObjectRepositoryInterface,
+)
 
-__all__ = ["adapters", "interfaces"]
+__all__ = [
+    "ConnectionAwareInterface",
+    "ContextAwareInterface",
+    "JsonRepositoryInterface",
+    "ObjectRepositoryInterface",
+    "RedisAdapter",
+    "MinioAdapter",
+]

python_repositories/adapters/__init__.py

@@ -1,5 +1,13 @@
-from .redis_adapter import RedisAdapter as RedisAdapter
+"""
+Adapters for various backend repositories (e.g., Redis, Minio).
+
+This module exposes concrete implementations for repository interfaces.
+"""
+
+from .redis_adapter import RedisAdapter
+from .minio_adapter import MinioAdapter
 
 __all__ = [
     "RedisAdapter",
+    "MinioAdapter",
 ]

python_repositories/adapters/minio_adapter.py

@@ -0,0 +1,227 @@
+"""Definition of MinioAdapter class."""
+
+from __future__ import annotations
+import os
+from io import BytesIO
+from importlib.util import find_spec
+from typing import Self
+import structlog
+from python_utils import check_env
+
+from python_repositories.interfaces import (
+    ConnectionAwareInterface,
+    ContextAwareInterface,
+    ObjectRepositoryInterface,
+)
+
+# Handle optional dependencies
+if find_spec("minio") is not None:
+    import minio
+
+
+class MinioAdapter(
+    ObjectRepositoryInterface,
+    ContextAwareInterface,
+    ConnectionAwareInterface,
+):
+    """Minio adapter exposing basic CRUD functionality."""
+
+    endpoint_env_var_name: str = "MINIO_ENDPOINT"
+    access_key_env_var_name: str = "MINIO_ACCESS_KEY"
+    secret_key_env_var_name: str = "MINIO_SECRET_KEY"
+    bucket_env_var_name: str = "MINIO_BUCKET"
+    chunk_size: int = 5 * 2**20  # 5 MiB
+
+    def __init__(self) -> None:
+        # Setup logger
+        self.logger = structlog.get_logger(
+            self.__class__.__name__,
+        )
+        # Check environment variables
+        check_env(
+            {
+                self.endpoint_env_var_name,
+                self.access_key_env_var_name,
+                self.secret_key_env_var_name,
+                self.bucket_env_var_name,
+            },
+        )
+        # Prepare internal variables
+        self._client: minio.Minio | None = None
+        self._bucket_name: str | None = None
+
+    def __enter__(self) -> Self:
+        """Enter the context."""
+        self.connect()
+        return self
+
+    def __exit__(
+        self, exc_type: type | None, exc_val: object | None, exc_tb: object | None
+    ) -> None:
+        """Exit the context."""
+        ctx_info = {"exc_type": exc_type, "exc_val": exc_val, "exc_tb": exc_tb}
+        if any(
+            (
+                exc_type is not None,
+                exc_val is not None,
+                exc_tb is not None,
+            ),
+        ):
+            self.logger.error("Error while exiting context", **ctx_info)
+        self.disconnect()
+
+    def connect(self) -> None:
+        """Connect to the Minio server."""
+        # Stop if already connected
+        if self.is_connected:
+            self.logger.info("Already connected to Minio")
+            return
+        # Prepare arguments
+        endpoint = str(os.getenv(self.endpoint_env_var_name))
+        access_key = str(os.getenv(self.access_key_env_var_name))
+        secret_key = str(os.getenv(self.secret_key_env_var_name))
+        bucket = str(os.getenv(self.bucket_env_var_name))
+        # Connect client
+        client = minio.Minio(
+            endpoint=endpoint,
+            access_key=access_key,
+            secret_key=secret_key,
+            secure=False,
+        )
+        # Test the connection by listing buckets (will raise if connection fails)
+        try:
+            _ = client.list_buckets()
+        except Exception as exc:  # pylint: disable=broad-except
+            raise ConnectionError(f"Could not connect to Minio at {endpoint}") from exc
+        # Ensure bucket exists
+        if not client.bucket_exists(bucket):
+            self.logger.info(f"Creating bucket '{bucket}'")
+            client.make_bucket(bucket)
+        # Persist information
+        self._client = client
+        self._bucket_name = bucket
+
+    def disconnect(self) -> None:
+        """Disconnect from the Minio server."""
+        # Close connection
+        # N.B. Minio client does not have a close method, but we include this for symmetry with other adapters
+        # Reset client
+        self._client = None
+        self._bucket_name = None
+
+    @property
+    def is_connected(self) -> bool:
+        """Check if connected to Minio server."""
+        res = bool(isinstance(self._client, minio.Minio))
+        self.logger.debug(res)
+        return res
+
+    def put(
+        self,
+        object_name: str,
+        data: BytesIO,
+        content_type: str = "application/octet-stream",
+    ) -> None:
+        """Put an object into the Minio bucket."""
+        # Check input
+        if not isinstance(object_name, str) or len(object_name) == 0:
+            raise ValueError("object_name must be a non-empty string")
+        if not isinstance(data, BytesIO) or data.getbuffer().nbytes == 0:
+            raise ValueError("data must be a non-empty BytesIO object")
+        if not isinstance(content_type, str) or len(content_type) == 0:
+            raise ValueError("content_type must be a non-empty string")
+        # Check connection
+        if self._client is None or not self.is_connected:
+            raise ConnectionError("Not connected to Minio")
+        # Prepare buffer for reading
+        num_bytes = data.getbuffer().nbytes
+        data.seek(0)
+        # Send data to bucket
+        # N.B. bucket name is set when connecting
+        self._client.put_object(
+            bucket_name=self._bucket_name,
+            object_name=object_name,
+            data=data,
+            length=num_bytes,
+            part_size=self.chunk_size,
+            content_type=content_type,
+        )
+        self.logger.debug(
+            f"Put object '{object_name}' into bucket '{self._bucket_name}'"
+        )
+
+    def get(self, object_name: str) -> BytesIO | None:
+        """Get an object from the Minio bucket."""
+        # Check input
+        if not isinstance(object_name, str) or len(object_name) == 0:
+            raise ValueError("object_name must be a non-empty string")
+        # Check connection
+        if self._client is None or not self.is_connected:
+            raise ConnectionError("Not connected to Minio")
+        # Get data from bucket
+        # N.B. bucket name is set when connecting
+        try:
+            response = self._client.get_object(
+                bucket_name=self._bucket_name,
+                object_name=object_name,
+            )
+            # Get buffered data
+            buffer = BytesIO()
+            while chunk := response.read(self.chunk_size):
+                buffer.write(chunk)
+            buffer.seek(0)
+            self.logger.debug(
+                f"Got object '{object_name}' from bucket '{self._bucket_name}'"
+            )
+            return buffer
+        except minio.S3Error as exc:
+            if exc.code == "NoSuchKey":
+                self.logger.warning(
+                    f"Object '{object_name}' not found in bucket '{self._bucket_name}'"
+                )
+            else:
+                self.logger.error(repr(exc))
+        except Exception as exc:  # pylint: disable=broad-except
+            self.logger.error(repr(exc))
+        return None
+
+    def delete(self, object_name: str) -> None:
+        """Delete an object from the Minio bucket."""
+        # Check input
+        if not isinstance(object_name, str) or len(object_name) == 0:
+            raise ValueError("object_name must be a non-empty string")
+        # Check connection
+        if self._client is None or not self.is_connected:
+            raise ConnectionError("Not connected to Minio")
+        # Delete object from bucket
+        # N.B. bucket name is set when connecting
+        self._client.remove_object(
+            bucket_name=self._bucket_name,
+            object_name=object_name,
+        )
+        self.logger.debug(
+            f"Deleted object '{object_name}' from bucket '{self._bucket_name}'"
+        )
+
+    def list_objects(self, prefix: str = "") -> list[str]:
+        """List objects in the Minio bucket with an optional prefix."""
+        # Check input
+        if not isinstance(prefix, str):
+            raise ValueError("prefix must be a string")
+        # Check connection
+        # N.B. bucket name is set when connecting
+        if self._client is None or not self.is_connected:
+            raise ConnectionError("Not connected to Minio")
+        # List objects in bucket
+        objects = self._client.list_objects(
+            bucket_name=self._bucket_name,
+            prefix=prefix,
+            recursive=True,
+        )
+        object_names = [
+            obj.object_name for obj in objects if obj.object_name is not None
+        ]
+        self.logger.debug(
+            f"Listed {len(object_names)} object(s) in bucket '{self._bucket_name}' with prefix '{prefix}'"
+        )
+        return object_names

python_repositories/adapters/redis_adapter.py

@@ -1,30 +1,34 @@
 """Definition of RedisAdapter class."""
 
 from __future__ import annotations
-from typing import cast
+from typing import Self, cast
-
+from importlib.util import find_spec
 import os
 import structlog
 
-import redis
-from redis.commands.json.path import Path as RedisPath
-
 from python_utils import check_env
 
 from python_repositories.interfaces import (
-    ContextAwareInterface,
     ConnectionAwareInterface,
+    ContextAwareInterface,
+    JsonRepositoryInterface,
 )
 
+# Handle optional dependencies
+if find_spec("redis") is not None:
+    import redis
+    from redis.commands.json.path import Path as RedisPath
+
 
 class RedisAdapter(
+    JsonRepositoryInterface,
     ContextAwareInterface,
     ConnectionAwareInterface,
 ):
     """Redis adapter exposing basic CRUD functionality."""
 
     uri_env_var_name: str = "REDIS_URI"
-    path: str = RedisPath.root_path()
+    path: str = "."  # JSON root path, updated in __init__
     encoding: str = "UTF-8"
 
     def __init__(self) -> None:
@@ -36,8 +40,9 @@ class RedisAdapter(
         check_env(self.uri_env_var_name)
         # Prepare internal variables
         self._client: redis.Redis | None = None
+        self.path: str = RedisPath.root_path()
 
-    def __enter__(self) -> RedisAdapter:
+    def __enter__(self) -> Self:
         """Enter the context."""
         self.connect()
         return self
@@ -89,7 +94,7 @@ class RedisAdapter(
         self.logger.debug(res)
         return res
 
-    def _set(self, key: str, data: dict) -> None:
+    def set(self, key: str, data: dict) -> None:
         """Set a JSON object in Redis."""
         # Check input
         if not isinstance(key, str) or len(key) == 0:
@@ -103,7 +108,7 @@ class RedisAdapter(
         self._client.json().set(key, self.path, data)
         self.logger.debug(f"Set {key} to {data}")
 
-    def _get(self, key: str) -> dict | None:
+    def get(self, key: str) -> dict | None:
         """Get a JSON object from Redis."""
         # Check input
         if not isinstance(key, str) or len(key) == 0:
@@ -119,7 +124,7 @@ class RedisAdapter(
         self.logger.debug(f"Got {data} from {key}")
         return data
 
-    def _delete(self, key: str) -> None:
+    def delete(self, key: str) -> None:
         """Delete data from Redis."""
         # Check input
         if not isinstance(key, str) or len(key) == 0:
@@ -131,7 +136,7 @@ class RedisAdapter(
         self._client.json().delete(key)
         self.logger.debug(f"Deleted {key}")
 
-    def _list_keys(self, pattern: str) -> list[str]:
+    def list_keys(self, pattern: str) -> list[str]:
         """List keys in Redis matching a pattern."""
         # Check input
         if not isinstance(pattern, str) or len(pattern) == 0:

python_repositories/examples/__init__.py

@@ -0,0 +1 @@
+"""Example domain repositories built on technology adapters."""

python_repositories/examples/artifact_object_repository.py

@@ -0,0 +1,23 @@
+"""Example domain repository backed by MinIO objects."""
+
+from io import BytesIO
+
+from python_repositories.adapters.minio_adapter import MinioAdapter
+
+
+class ArtifactObjectRepository(MinioAdapter):
+    """Example: domain repository backed by MinIO objects."""
+
+    def _object_name(self, artifact_id: str) -> str:
+        return f"artifacts/{artifact_id}"
+
+    def get_artifact(self, artifact_id: str) -> BytesIO | None:
+        return self.get(self._object_name(artifact_id))
+
+    def store_artifact(
+        self,
+        artifact_id: str,
+        data: BytesIO,
+        content_type: str = "application/octet-stream",
+    ) -> None:
+        self.put(self._object_name(artifact_id), data, content_type)

python_repositories/examples/user_json_repository.py

@@ -0,0 +1,19 @@
+"""Example domain repository backed by Redis JSON."""
+
+from python_repositories.adapters.redis_adapter import RedisAdapter
+
+
+class UserJsonRepository(RedisAdapter):
+    """Example: domain repository backed by Redis JSON."""
+
+    def _key(self, user_id: str) -> str:
+        return f"user:{user_id}"
+
+    def get_user(self, user_id: str) -> dict | None:
+        return self.get(self._key(user_id))
+
+    def save_user(self, user_id: str, user: dict) -> None:
+        self.set(self._key(user_id), user)
+
+    def delete_user(self, user_id: str) -> None:
+        self.delete(self._key(user_id))

python_repositories/interfaces/__init__.py

@@ -2,8 +2,16 @@ from .connection_aware_interface import (
     ConnectionAwareInterface as ConnectionAwareInterface,
 )
 from .context_aware_interface import ContextAwareInterface as ContextAwareInterface
+from .json_repository_interface import (
+    JsonRepositoryInterface as JsonRepositoryInterface,
+)
+from .object_repository_interface import (
+    ObjectRepositoryInterface as ObjectRepositoryInterface,
+)
 
 __all__ = [
     "ConnectionAwareInterface",
     "ContextAwareInterface",
+    "JsonRepositoryInterface",
+    "ObjectRepositoryInterface",
 ]

python_repositories/interfaces/connection_aware_interface.py

@@ -9,15 +9,15 @@ class ConnectionAwareInterface(ABC):
     @abstractmethod
     def connect(self) -> None:
         """Connect to resource."""
-        raise NotImplementedError()
+        ...
 
     @abstractmethod
     def disconnect(self) -> None:
         """Disconnect from resource."""
-        raise NotImplementedError()
+        ...
 
     @property
     @abstractmethod
     def is_connected(self) -> bool:
         """Check if connected to resource."""
-        raise NotImplementedError()
+        ...

python_repositories/interfaces/context_aware_interface.py

@@ -1,21 +1,22 @@
-"""Definition of ConnectionAwareInterface abstract base class."""
+"""Definition of ContextAwareInterface abstract base class."""
 
 from __future__ import annotations
 
 from abc import ABC, abstractmethod
+from typing import Self
 
 
 class ContextAwareInterface(ABC):
-    """Interface that defined context-related methods."""
+    """Interface that defines context-related methods."""
 
     @abstractmethod
-    def __enter__(self) -> ContextAwareInterface:
+    def __enter__(self) -> Self:
         """Enter the context."""
-        raise NotImplementedError()
+        ...
 
     @abstractmethod
     def __exit__(
         self, exc_type: type | None, exc_val: object | None, exc_tb: object | None
     ) -> None:
         """Exit the context."""
-        raise NotImplementedError()
+        ...

python_repositories/interfaces/json_repository_interface.py

@@ -0,0 +1,27 @@
+"""Definition of JsonRepositoryInterface abstract base class."""
+
+from abc import ABC, abstractmethod
+
+
+class JsonRepositoryInterface(ABC):
+    """Interface that defines JSON document CRUD methods."""
+
+    @abstractmethod
+    def get(self, key: str) -> dict | None:
+        """Get a JSON object by key."""
+        ...
+
+    @abstractmethod
+    def set(self, key: str, data: dict) -> None:
+        """Set a JSON object by key."""
+        ...
+
+    @abstractmethod
+    def delete(self, key: str) -> None:
+        """Delete a JSON object by key."""
+        ...
+
+    @abstractmethod
+    def list_keys(self, pattern: str) -> list[str]:
+        """List keys matching a glob pattern."""
+        ...

python_repositories/interfaces/object_repository_interface.py

@@ -0,0 +1,33 @@
+"""Definition of ObjectRepositoryInterface abstract base class."""
+
+from abc import ABC, abstractmethod
+from io import BytesIO
+
+
+class ObjectRepositoryInterface(ABC):
+    """Interface that defines binary object CRUD methods."""
+
+    @abstractmethod
+    def get(self, object_name: str) -> BytesIO | None:
+        """Get an object by name."""
+        ...
+
+    @abstractmethod
+    def put(
+        self,
+        object_name: str,
+        data: BytesIO,
+        content_type: str = "application/octet-stream",
+    ) -> None:
+        """Put an object by name."""
+        ...
+
+    @abstractmethod
+    def delete(self, object_name: str) -> None:
+        """Delete an object by name."""
+        ...
+
+    @abstractmethod
+    def list_objects(self, prefix: str = "") -> list[str]:
+        """List object names with an optional prefix."""
+        ...

tests/integration/conftest.py

@@ -6,8 +6,14 @@ import pytest
 import redis
 import structlog
 import logging
+from minio import Minio
 
 from testcontainers.redis import RedisContainer
+from testcontainers.minio import MinioContainer
+
+MINIO_ACCESS_KEY = "minioadmin"
+MINIO_SECRET_KEY = "minioadmin"
+MINIO_BUCKET = "test-bucket"
 
 
 @pytest.fixture(scope="session", autouse=True)
@@ -16,6 +22,10 @@ def configure_logging() -> None:
     # Configure structlog
     structlog.configure(
         processors=[
+            structlog.stdlib.filter_by_level,
+            structlog.stdlib.add_logger_name,
+            structlog.stdlib.add_log_level,
+            structlog.processors.TimeStamper(fmt="iso"),
             structlog.processors.JSONRenderer(),
         ],
         logger_factory=structlog.stdlib.LoggerFactory(),
@@ -32,7 +42,6 @@ def redis_container() -> Generator[str]:
     # Start container
     container = RedisContainer(
         image="redis/redis-stack:7.2.0-v0",
-        port=6379,
     )
     container.start()
     # Set environment variable for Redis URI
@@ -46,13 +55,42 @@ def redis_container() -> Generator[str]:
     container.stop()
 
 
+@pytest.fixture(scope="session")
+def minio_container() -> Generator[dict[str, str]]:
+    """Set up a Minio container for testing and yield the Minio URI."""
+    # Start container
+    container = MinioContainer(
+        image="minio/minio:latest",
+        access_key=MINIO_ACCESS_KEY,
+        secret_key=MINIO_SECRET_KEY,
+    )
+    container.start()
+    # Build environment variables dictionary
+    minio_host = container.get_container_host_ip()
+    minio_port = container.get_exposed_port(9000)
+    minio_endpoint = f"{minio_host}:{minio_port}"
+    env_vars = {
+        "MINIO_ENDPOINT": minio_endpoint,
+        "MINIO_ACCESS_KEY": MINIO_ACCESS_KEY,
+        "MINIO_SECRET_KEY": MINIO_SECRET_KEY,
+        "MINIO_BUCKET": MINIO_BUCKET,
+    }
+
+    yield env_vars
+
+    # Stop container
+    container.stop()
+
+
 @pytest.fixture(scope="session", autouse=True)
 def set_environment_variables(
     redis_container: str,
+    minio_container: dict[str, str],
 ) -> Generator[dict[str, str]]:
     """Set environment variables needed for tests."""
     # Build environment variables dictionary
     env_vars = {"REDIS_URI": redis_container}
+    env_vars.update(minio_container)
     # Set environment variables
     for key, value in env_vars.items():
         os.environ[key] = value
@@ -78,3 +116,26 @@ def raw_redis_client(redis_container: str) -> Generator[redis.Redis]:
     # Cleanup
     client.flushall()
     client.close()
+
+
+@pytest.fixture(scope="session")
+def raw_minio_client(minio_container: dict[str, str]) -> Generator[Minio]:
+    """Provide a raw Minio client connected to the test Minio container."""
+    # Connect client
+    client = Minio(
+        endpoint=minio_container["MINIO_ENDPOINT"],
+        access_key=minio_container["MINIO_ACCESS_KEY"],
+        secret_key=minio_container["MINIO_SECRET_KEY"],
+        secure=False,
+    )
+    # Ensure bucket exists
+    bucket_name = minio_container["MINIO_BUCKET"]
+    if not client.bucket_exists(bucket_name):
+        client.make_bucket(bucket_name)
+
+    yield client
+
+    # Cleanup
+    objects = client.list_objects(bucket_name, recursive=True)
+    for obj in objects:
+        client.remove_object(bucket_name, obj.object_name)

tests/integration/connection_aware_interface_test.py

@@ -54,66 +54,3 @@ def test_instantiation_fails_when_is_connected_not_implemented() -> None:
 
     with pytest.raises(TypeError):
         _ = Incomplete()  # type: ignore
-
-
-def test_connect_raises_not_implemented_if_not_overwritten() -> None:
-    """Test that connect raises NotImplementedError if not implemented."""
-
-    class Incomplete(ConnectionAwareInterface):
-        """A class that does not implement connect."""
-
-        def connect(self) -> None:
-            super().connect()  # type: ignore
-
-        def disconnect(self) -> None:
-            pass
-
-        @property
-        def is_connected(self) -> bool:
-            return False
-
-    instance = Incomplete()
-    with pytest.raises(NotImplementedError):
-        instance.connect()
-
-
-def test_disconnect_raises_not_implemented_if_not_overwritten() -> None:
-    """Test that disconnect raises NotImplementedError if not implemented."""
-
-    class Incomplete(ConnectionAwareInterface):
-        """A class that does not implement disconnect."""
-
-        def connect(self) -> None:
-            pass
-
-        def disconnect(self) -> None:
-            super().disconnect()  # type: ignore
-
-        @property
-        def is_connected(self) -> bool:
-            return False
-
-    instance = Incomplete()
-    with pytest.raises(NotImplementedError):
-        instance.disconnect()
-
-
-def test_is_connected_raises_not_implemented_if_not_overwritten() -> None:
-    """Test that is_connected raises NotImplementedError if not implemented."""
-
-    class Incomplete(ConnectionAwareInterface):
-        """A class that does not implement is_connected."""
-
-        def connect(self) -> None:
-            pass
-
-        def disconnect(self) -> None:
-            pass
-
-        @property
-        def is_connected(self) -> bool:
-            return super().is_connected  # type: ignore
-
-    instance = Incomplete()
-    with pytest.raises(NotImplementedError):
-        _ = instance.is_connected

tests/integration/context_aware_interface_test.py

@@ -1,6 +1,7 @@
 """Integration tests for ContextAwareInterface."""
 
 from __future__ import annotations
+
 import pytest
 from python_repositories.interfaces.context_aware_interface import ContextAwareInterface
 
@@ -31,42 +32,3 @@ def test_instantiation_fails_when_exit_not_implemented() -> None:
 
     with pytest.raises(TypeError):
         _ = Incomplete()  # type: ignore
-
-
-def test_enter_raises_not_implemented_if_not_overwritten() -> None:
-    """Test that __enter__ raises NotImplementedError if not implemented."""
-
-    class Incomplete(ContextAwareInterface):
-        """A class that does not implement __enter__."""
-
-        def __enter__(self) -> Incomplete:
-            super().__enter__()  # type: ignore
-            return self
-
-        def __exit__(
-            self, exc_type: type | None, exc_val: object | None, exc_tb: object | None
-        ) -> None:
-            pass
-
-    instance = Incomplete()
-    with pytest.raises(NotImplementedError):
-        instance.__enter__()
-
-
-def test_exit_raises_not_implemented_if_not_overwritten() -> None:
-    """Test that __exit__ raises NotImplementedError if not implemented."""
-
-    class Incomplete(ContextAwareInterface):
-        """A class that does not implement __exit__."""
-
-        def __enter__(self) -> ContextAwareInterface:
-            return self
-
-        def __exit__(
-            self, exc_type: type | None, exc_val: object | None, exc_tb: object | None
-        ) -> None:
-            super().__exit__(exc_type, exc_val, exc_tb)  # type: ignore
-
-    instance = Incomplete()
-    with pytest.raises(NotImplementedError):
-        instance.__exit__(None, None, None)

tests/integration/examples_test.py

@@ -0,0 +1,57 @@
+"""Integration tests for example domain repositories."""
+
+from collections.abc import Generator
+from io import BytesIO
+import random
+
+import pytest
+from python_repositories.examples.artifact_object_repository import (
+    ArtifactObjectRepository,
+)
+from python_repositories.examples.user_json_repository import UserJsonRepository
+
+
+@pytest.fixture(scope="module")
+def user_data() -> Generator[dict[str, str]]:
+    """Provide sample user data for tests."""
+    yield {"name": "Alice", "email": "[email protected]"}
+
+
+@pytest.fixture(scope="module")
+def artifact_data() -> Generator[BytesIO]:
+    """Provide sample artifact data for tests."""
+    yield BytesIO(random.randbytes(2**20))
+
+
+def test_user_json_repository_save_and_get(
+    redis_container: str,
+    user_data: dict[str, str],
+) -> None:
+    """Test that UserJsonRepository can save and retrieve a user."""
+    with UserJsonRepository() as repo:
+        repo.save_user("alice", user_data)
+        assert repo.get_user("alice") == user_data
+
+
+def test_user_json_repository_delete(
+    redis_container: str,
+    user_data: dict[str, str],
+) -> None:
+    """Test that UserJsonRepository can delete a user."""
+    with UserJsonRepository() as repo:
+        repo.save_user("alice", user_data)
+        repo.delete_user("alice")
+        assert repo.get_user("alice") is None
+
+
+def test_artifact_object_repository_store_and_get(
+    minio_container: dict[str, str],
+    artifact_data: BytesIO,
+) -> None:
+    """Test that ArtifactObjectRepository can store and retrieve an artifact."""
+    with ArtifactObjectRepository() as repo:
+        repo.store_artifact("report-1", artifact_data)
+        received = repo.get_artifact("report-1")
+        assert received is not None
+        artifact_data.seek(0)
+        assert received.read() == artifact_data.read()

tests/integration/json_repository_interface_test.py

@@ -0,0 +1,82 @@
+"""Integration tests for JsonRepositoryInterface."""
+
+import pytest
+from python_repositories.interfaces.json_repository_interface import (
+    JsonRepositoryInterface,
+)
+
+
+def test_instantiation_fails_when_get_not_implemented() -> None:
+    """Test that instantiation fails if get is not implemented."""
+
+    class Incomplete(JsonRepositoryInterface):
+        """A class that does not implement get."""
+
+        def set(self, key: str, data: dict) -> None:
+            pass
+
+        def delete(self, key: str) -> None:
+            pass
+
+        def list_keys(self, pattern: str) -> list[str]:
+            return []
+
+    with pytest.raises(TypeError):
+        _ = Incomplete()  # type: ignore
+
+
+def test_instantiation_fails_when_set_not_implemented() -> None:
+    """Test that instantiation fails if set is not implemented."""
+
+    class Incomplete(JsonRepositoryInterface):
+        """A class that does not implement set."""
+
+        def get(self, key: str) -> dict | None:
+            return None
+
+        def delete(self, key: str) -> None:
+            pass
+
+        def list_keys(self, pattern: str) -> list[str]:
+            return []
+
+    with pytest.raises(TypeError):
+        _ = Incomplete()  # type: ignore
+
+
+def test_instantiation_fails_when_delete_not_implemented() -> None:
+    """Test that instantiation fails if delete is not implemented."""
+
+    class Incomplete(JsonRepositoryInterface):
+        """A class that does not implement delete."""
+
+        def get(self, key: str) -> dict | None:
+            return None
+
+        def set(self, key: str, data: dict) -> None:
+            pass
+
+        def list_keys(self, pattern: str) -> list[str]:
+            return []
+
+    with pytest.raises(TypeError):
+        _ = Incomplete()  # type: ignore
+
+
+def test_instantiation_fails_when_list_keys_not_implemented() -> None:
+    """Test that instantiation fails if list_keys is not implemented."""
+
+    class Incomplete(JsonRepositoryInterface):
+        """A class that does not implement list_keys."""
+
+        def get(self, key: str) -> dict | None:
+            return None
+
+        def set(self, key: str, data: dict) -> None:
+            pass
+
+        def delete(self, key: str) -> None:
+            pass
+
+    with pytest.raises(TypeError):
+        _ = Incomplete()  # type: ignore

tests/integration/minio_adapter_test.py

@@ -0,0 +1,500 @@
+"""Integration tests for the MinioAdapter."""
+
+from collections.abc import Generator
+import pytest
+from unittest.mock import MagicMock
+from minio import Minio
+from io import BytesIO
+import random
+import os
+import logging
+from minio import S3Error
+from python_repositories.adapters.minio_adapter import MinioAdapter
+from python_repositories.interfaces import ObjectRepositoryInterface
+
+
+def same_data(
+    data_a: BytesIO,
+    data_b: BytesIO,
+) -> bool:
+    """Check if two BytesIO-objects contain the same data."""
+    assert isinstance(data_a, BytesIO)
+    assert isinstance(data_b, BytesIO)
+    # prepare for being read
+    data_a.seek(0)
+    data_b.seek(0)
+    # convert to bytes
+    data_a_bytes = data_a.read()
+    data_b_bytes = data_b.read()
+    # compare size
+    if len(data_a_bytes) != len(data_b_bytes):
+        logging.error(
+            "data has different length: %s and %s",
+            len(data_a_bytes),
+            len(data_b_bytes),
+        )
+        return False
+    # compare content
+    if data_a_bytes != data_b_bytes:
+        logging.error("data has different bytes")
+        return False
+    return True
+
+
+@pytest.fixture(scope="module")
+def data() -> Generator[BytesIO]:
+    """Provide a sample data bytes for tests."""
+    # Generate random bytes
+    random_bytes = random.randbytes(2**21)  # 2 MiB
+    yield BytesIO(random_bytes)
+
+
+@pytest.fixture(scope="function")
+def data_in_minio(
+    raw_minio_client: Minio,
+    data: BytesIO,
+) -> Generator[tuple[str, BytesIO]]:
+    """Fixture to set up a known value in Minio before each test."""
+    object_name = "test_object"
+    bucket_name = str(os.getenv("MINIO_BUCKET"))
+    # Upload object
+    num_bytes = data.getbuffer().nbytes
+    data.seek(0)
+    raw_minio_client.put_object(
+        bucket_name,
+        object_name,
+        data,
+        length=num_bytes,
+        part_size=MinioAdapter.chunk_size,
+    )
+    # Reset data for reading in tests
+    data.seek(0)
+
+    yield object_name, data
+
+    # Cleanup
+    raw_minio_client.remove_object(bucket_name, object_name)
+
+
+@pytest.fixture(scope="module")
+def minio_adapter() -> Generator[MinioAdapter]:
+    """Fixture to provide a connected MinioAdapter instance."""
+    adapter = MinioAdapter()
+    adapter.connect()
+    yield adapter
+    adapter.disconnect()
+
+
+@pytest.fixture(scope="function", autouse=True)
+def clear_minio(
+    raw_minio_client: Minio,
+) -> None:
+    """Fixture to clear all Minio objects before each test."""
+    bucket_name = str(os.getenv("MINIO_BUCKET"))
+    # Clear all objects before each test
+    objects = raw_minio_client.list_objects(bucket_name, recursive=True)
+    for obj in objects:
+        if not obj.object_name:
+            continue
+        raw_minio_client.remove_object(bucket_name, obj.object_name)
+
+
+def test_should_adhere_to_interface() -> None:
+    """Test that the MinioAdapter adheres to the expected interface."""
+    assert issubclass(MinioAdapter, ObjectRepositoryInterface)
+    _ = MinioAdapter()
+
+
+def test_should_have_logger_when_instantiated() -> None:
+    """Test that the MinioAdapter has a logger when instantiated."""
+    adapter = MinioAdapter()
+    assert hasattr(adapter, "logger")
+
+
+def test_should_not_be_connected_when_instantiated() -> None:
+    """Test that the MinioAdapter is not connected when instantiated."""
+    adapter = MinioAdapter()
+    assert not adapter.is_connected
+
+
+def test_should_log_info_when_already_connected(
+    minio_adapter: MinioAdapter,
+    caplog: pytest.LogCaptureFixture,
+) -> None:
+    """Test that the MinioAdapter logs info when connect is called while already connected."""
+    with caplog.at_level(logging.INFO):
+        minio_adapter.connect()
+    assert "Already connected to Minio" in caplog.text
+
+
+def test_should_raise_connection_error_when_unable_to_connect(
+    monkeypatch: pytest.MonkeyPatch,
+) -> None:
+    """Test that the MinioAdapter raises a ConnectionError when unable to connect."""
+    # Arrange
+    monkeypatch.setenv("MINIO_ENDPOINT", "invalid_uri")
+    adapter = MinioAdapter()
+    with pytest.raises(ConnectionError):
+        adapter.connect()
+    assert not adapter.is_connected
+
+
+def test_should_log_info_when_creating_expected_bucket(
+    raw_minio_client: Minio,
+    caplog: pytest.LogCaptureFixture,
+) -> None:
+    """Test that the MinioAdapter logs info when creating the expected bucket."""
+    # Arrange
+    bucket_name = str(os.getenv("MINIO_BUCKET"))
+    raw_minio_client.remove_bucket(bucket_name)
+    adapter = MinioAdapter()
+    # Act
+    with caplog.at_level(logging.INFO):
+        adapter.connect()
+    # Assert
+    assert f"Creating bucket '{bucket_name}'" in caplog.text
+
+
+def test_should_log_error_on_exception_during_exit(
+    minio_container: dict[str, str],
+    caplog: pytest.LogCaptureFixture,
+) -> None:
+    """Test that the MinioAdapter logs an error if an exception occurs during __exit__."""
+    try:
+        with MinioAdapter() as adapter:
+            assert adapter.is_connected
+            raise ValueError("Simulated error")
+    except ValueError:
+        pass  # Expected
+    # Assert error was logged
+    assert "Error while exiting context" in caplog.text
+
+
+def test_should_have_context_manager() -> None:
+    """Test that the MinioAdapter can be used as a context manager."""
+    with MinioAdapter() as adapter:
+        assert adapter._client is not None
+    assert adapter._client is None
+
+
+def test_should_get_data(
+    data_in_minio: tuple[str, BytesIO],
+    minio_adapter: MinioAdapter,
+) -> None:
+    """Test that the MinioAdapter can get data from a bucket."""
+    # Arrange
+    object_name, expected_data = data_in_minio
+    # Act
+    received_data = minio_adapter.get(object_name)
+    # Assert
+    assert received_data is not None
+    assert same_data(expected_data, received_data)
+
+
+def test_should_get_none_for_nonexistent_object(
+    minio_adapter: MinioAdapter,
+) -> None:
+    """Test that the MinioAdapter returns None for a nonexistent object."""
+    # Arrange
+    object_name = "nonexistent_object"
+    # Act
+    received_data = minio_adapter.get(object_name)
+    # Assert
+    assert received_data is None
+
+
+def test_should_raise_value_error_on_invalid_get_object_name(
+    minio_adapter: MinioAdapter,
+) -> None:
+    """Test that the MinioAdapter raises ValueError when getting with an invalid object name."""
+    # Arrange
+    invalid_object_names = ["", 123, None]
+    # Act & Assert
+    for object_name in invalid_object_names:
+        with pytest.raises(ValueError):
+            minio_adapter.get(object_name)  # type: ignore
+
+
+def test_should_raise_connection_error_on_get_when_not_connected(
+    minio_adapter: MinioAdapter,
+) -> None:
+    """Test that the MinioAdapter raises ConnectionError when getting while not connected."""
+    # Arrange
+    adapter = MinioAdapter()  # not connected
+    # Act & Assert
+    with pytest.raises(ConnectionError):
+        adapter.get("some_object")
+
+
+def test_should_log_warning_when_getting_nonexistent_object(
+    caplog: pytest.LogCaptureFixture,
+) -> None:
+    """Test that the MinioAdapter logs a warning when getting a nonexistent object."""
+    # Arrange
+    adapter = MinioAdapter()
+    adapter._client = MagicMock(spec=Minio)
+    adapter._client.get_object.side_effect = S3Error(
+        code="NoSuchKey",
+        message="",
+        resource="",
+        request_id="",
+        host_id="",
+        response="",
+        bucket_name="test-bucket",
+        object_name="missing-object",
+    )
+    adapter._bucket_name = "test-bucket"
+    object_name = "missing-object"
+    # Act
+    with caplog.at_level("WARNING"):
+        result = adapter.get(object_name)
+    # Assert
+    assert result is None
+    assert (
+        f"Object '{object_name}' not found in bucket '{adapter._bucket_name}'"
+        in caplog.text
+    )
+
+
+def test_should_log_error_when_getting_with_s3error_other_than_no_such_key(
+    caplog: pytest.LogCaptureFixture,
+) -> None:
+    """Test that the MinioAdapter logs an error when getting a nonexistent object."""
+    # Arrange
+    adapter = MinioAdapter()
+    adapter._client = MagicMock(spec=Minio)
+    other_s3error = S3Error(
+        code="UnhandledError",
+        message="",
+        resource="",
+        request_id="",
+        host_id="",
+        response="",
+        bucket_name="test-bucket",
+        object_name="missing-object",
+    )
+    adapter._client.get_object.side_effect = other_s3error
+    adapter._bucket_name = "test-bucket"
+    object_name = "missing-object"
+    # Act
+    with caplog.at_level("ERROR"):
+        result = adapter.get(object_name)
+    # Assert
+    assert result is None
+    assert repr(other_s3error) in caplog.text
+
+
+def test_should_log_error_when_getting_with_general_exception(
+    caplog: pytest.LogCaptureFixture,
+) -> None:
+    """Test that the MinioAdapter logs an error when getting a nonexistent object."""
+    # Arrange
+    adapter = MinioAdapter()
+    adapter._client = MagicMock(spec=Minio)
+    general_exception = Exception("General failure")
+    adapter._client.get_object.side_effect = general_exception
+    adapter._bucket_name = "test-bucket"
+    object_name = "missing-object"
+    # Act
+    with caplog.at_level("ERROR"):
+        result = adapter.get(object_name)
+    # Assert
+    assert result is None
+    assert repr(general_exception) in caplog.text
+
+
+def test_should_put_data(
+    data: BytesIO,
+    minio_adapter: MinioAdapter,
+) -> None:
+    """Test that the MinioAdapter can put data into a bucket."""
+    # Arrange
+    object_name = "new_test_object"
+    received_data = minio_adapter.get(object_name)
+    assert received_data is None  # ensure object does not exist yet
+    # Act
+    minio_adapter.put(object_name, data)
+    # Assert
+    received_data = minio_adapter.get(object_name)
+    assert received_data is not None
+    assert same_data(data, received_data)
+    # Cleanup
+    bucket_name = str(os.getenv("MINIO_BUCKET"))
+    minio_adapter._client.remove_object(bucket_name, object_name)  # type: ignore
+
+
+def test_should_update_data(
+    data_in_minio: tuple[str, BytesIO],
+    minio_adapter: MinioAdapter,
+) -> None:
+    """Test that the MinioAdapter can update data in a bucket."""
+    # Arrange
+    object_name, _ = data_in_minio
+    new_data = BytesIO(random.randbytes(2**21))  # 2 MiB
+    received_data = minio_adapter.get(object_name)
+    assert received_data is not None
+    assert not same_data(received_data, new_data)
+    # Act
+    minio_adapter.put(object_name, new_data)
+    # Assert
+    received_data = minio_adapter.get(object_name)
+    assert received_data is not None
+    assert same_data(new_data, received_data)
+
+
+def test_should_raise_value_error_on_invalid_put_object_name(
+    data: BytesIO,
+    minio_adapter: MinioAdapter,
+) -> None:
+    """Test that the MinioAdapter raises ValueError when putting with an invalid object name."""
+    # Arrange
+    invalid_object_names = ["", 123, None]
+    # Act & Assert
+    for object_name in invalid_object_names:
+        with pytest.raises(ValueError):
+            minio_adapter.put(object_name, data)  # type: ignore
+
+
+def test_should_raise_value_error_on_invalid_put_data(
+    minio_adapter: MinioAdapter,
+) -> None:
+    """Test that the MinioAdapter raises ValueError when putting with invalid data."""
+    # Arrange
+    object_name = "valid_object_name"
+    invalid_data = ["not_bytesio", 123, None]
+    # Act & Assert
+    for data in invalid_data:
+        with pytest.raises(ValueError):
+            minio_adapter.put(object_name, data)  # type: ignore
+
+
+def test_should_raise_value_error_on_invalid_put_content_type(
+    data: BytesIO,
+    minio_adapter: MinioAdapter,
+) -> None:
+    """Test that the MinioAdapter raises ValueError when putting with an invalid content type."""
+    # Arrange
+    object_name = "valid_object_name"
+    invalid_content_types = ["", 123, None]
+    # Act & Assert
+    for content_type in invalid_content_types:
+        with pytest.raises(ValueError):
+            minio_adapter.put(object_name, data, content_type)  # type: ignore
+
+
+def test_should_raise_connection_error_on_put_when_not_connected(
+    data: BytesIO,
+    minio_adapter: MinioAdapter,
+) -> None:
+    """Test that the MinioAdapter raises ConnectionError when putting while not connected."""
+    # Arrange
+    adapter = MinioAdapter()  # not connected
+    # Act & Assert
+    with pytest.raises(ConnectionError):
+        adapter.put("some_object", data)
+
+
+def test_should_delete_object(
+    data_in_minio: tuple[str, BytesIO],
+    minio_adapter: MinioAdapter,
+) -> None:
+    """Test that the MinioAdapter can delete an object from a bucket."""
+    # Arrange
+    object_name, _ = data_in_minio
+    received_data = minio_adapter.get(object_name)
+    assert received_data is not None  # ensure object exists
+    # Act
+    minio_adapter.delete(object_name)
+    # Assert
+    received_data = minio_adapter.get(object_name)
+    assert received_data is None
+
+
+def test_should_raise_value_error_on_invalid_delete_object_name(
+    minio_adapter: MinioAdapter,
+) -> None:
+    """Test that the MinioAdapter raises ValueError when deleting with an invalid object name."""
+    # Arrange
+    invalid_object_names = ["", 123, None]
+    # Act & Assert
+    for object_name in invalid_object_names:
+        with pytest.raises(ValueError):
+            minio_adapter.delete(object_name)  # type: ignore
+
+
+def test_should_raise_connection_error_on_delete_when_not_connected(
+    minio_adapter: MinioAdapter,
+) -> None:
+    """Test that the MinioAdapter raises ConnectionError when deleting while not connected."""
+    # Arrange
+    adapter = MinioAdapter()  # not connected
+    # Act & Assert
+    with pytest.raises(ConnectionError):
+        adapter.delete("some_object")
+
+
+def test_should_list_objects(
+    data_in_minio: tuple[str, BytesIO],
+    minio_adapter: MinioAdapter,
+) -> None:
+    """Test that the MinioAdapter can list objects in a bucket."""
+    # Arrange
+    object_name, _ = data_in_minio
+    new_data = BytesIO(random.randbytes(2**21))  # 2 MiB
+    new_data_name = "another_test_object"
+    minio_adapter.put(new_data_name, new_data)
+    # Act
+    objects = minio_adapter.list_objects()
+    # Assert
+    assert isinstance(objects, list)
+    assert len(objects) == 2
+    assert object_name in objects
+    assert new_data_name in objects
+
+
+def test_should_list_objects_with_prefix(
+    data_in_minio: tuple[str, BytesIO],
+    minio_adapter: MinioAdapter,
+) -> None:
+    """Test that the MinioAdapter can list objects in a bucket with a prefix."""
+    # Arrange
+    object_name, _ = data_in_minio
+    new_data = BytesIO(random.randbytes(2**21))  # 2 MiB
+    new_data_name = "prefix_test_object"
+    minio_adapter.put(new_data_name, new_data)
+    prefix = "prefix_"
+    # Act
+    objects = minio_adapter.list_objects(prefix)
+    # Assert
+    assert isinstance(objects, list)
+    assert len(objects) == 1
+    assert new_data_name in objects
+    assert object_name not in objects
+
+
+def test_should_raise_value_error_on_invalid_list_objects_prefix(
+    minio_adapter: MinioAdapter,
+) -> None:
+    """Test that the MinioAdapter raises ValueError when listing with an invalid prefix."""
+    # Arrange
+    invalid_prefixes = [123, None]
+    # Act & Assert
+    for prefix in invalid_prefixes:
+        with pytest.raises(ValueError):
+            minio_adapter.list_objects(prefix)  # type: ignore
+
+
+def test_should_raise_connection_error_on_list_objects_when_not_connected(
+    minio_adapter: MinioAdapter,
+) -> None:
+    """Test that the MinioAdapter raises ConnectionError when listing while not connected."""
+    # Arrange
+    adapter = MinioAdapter()  # not connected
+    # Act & Assert
+    with pytest.raises(ConnectionError):
+        adapter.list_objects()
+
+
+# allows local debugging by running file as script
+if __name__ == "__main__":
+    pytest.main(["-s", "-v", __file__])

tests/integration/object_repository_interface_test.py

@@ -0,0 +1,99 @@
+"""Integration tests for ObjectRepositoryInterface."""
+
+from io import BytesIO
+
+import pytest
+from python_repositories.interfaces.object_repository_interface import (
+    ObjectRepositoryInterface,
+)
+
+
+def test_instantiation_fails_when_get_not_implemented() -> None:
+    """Test that instantiation fails if get is not implemented."""
+
+    class Incomplete(ObjectRepositoryInterface):
+        """A class that does not implement get."""
+
+        def put(
+            self,
+            object_name: str,
+            data: BytesIO,
+            content_type: str = "application/octet-stream",
+        ) -> None:
+            pass
+
+        def delete(self, object_name: str) -> None:
+            pass
+
+        def list_objects(self, prefix: str = "") -> list[str]:
+            return []
+
+    with pytest.raises(TypeError):
+        _ = Incomplete()  # type: ignore
+
+
+def test_instantiation_fails_when_put_not_implemented() -> None:
+    """Test that instantiation fails if put is not implemented."""
+
+    class Incomplete(ObjectRepositoryInterface):
+        """A class that does not implement put."""
+
+        def get(self, object_name: str) -> BytesIO | None:
+            return None
+
+        def delete(self, object_name: str) -> None:
+            pass
+
+        def list_objects(self, prefix: str = "") -> list[str]:
+            return []
+
+    with pytest.raises(TypeError):
+        _ = Incomplete()  # type: ignore
+
+
+def test_instantiation_fails_when_delete_not_implemented() -> None:
+    """Test that instantiation fails if delete is not implemented."""
+
+    class Incomplete(ObjectRepositoryInterface):
+        """A class that does not implement delete."""
+
+        def get(self, object_name: str) -> BytesIO | None:
+            return None
+
+        def put(
+            self,
+            object_name: str,
+            data: BytesIO,
+            content_type: str = "application/octet-stream",
+        ) -> None:
+            pass
+
+        def list_objects(self, prefix: str = "") -> list[str]:
+            return []
+
+    with pytest.raises(TypeError):
+        _ = Incomplete()  # type: ignore
+
+
+def test_instantiation_fails_when_list_objects_not_implemented() -> None:
+    """Test that instantiation fails if list_objects is not implemented."""
+
+    class Incomplete(ObjectRepositoryInterface):
+        """A class that does not implement list_objects."""
+
+        def get(self, object_name: str) -> BytesIO | None:
+            return None
+
+        def put(
+            self,
+            object_name: str,
+            data: BytesIO,
+            content_type: str = "application/octet-stream",
+        ) -> None:
+            pass
+
+        def delete(self, object_name: str) -> None:
+            pass
+
+    with pytest.raises(TypeError):
+        _ = Incomplete()  # type: ignore

tests/integration/redis_adapter_test.py

@@ -1,6 +1,3 @@
-# pylint: disable=protected-access
-# The above line disables pylint's protected member access warnings for this file,
-# allowing tests to access RedisAdapter's internal methods as needed for integration testing.
 """Integration tests for the RedisAdapter."""
 
 from collections.abc import Generator
@@ -8,9 +5,10 @@ import pytest
 import redis
 from redis.commands.json.path import Path as RedisPath
 from python_repositories.adapters.redis_adapter import RedisAdapter
+from python_repositories.interfaces import JsonRepositoryInterface
 
 
-@pytest.fixture(scope="session")
+@pytest.fixture(scope="module")
 def data() -> Generator[dict[str, str]]:
     """Provide a sample data dictionary for tests."""
     yield {"foo": "bar"}
@@ -50,7 +48,7 @@ def clear_redis(raw_redis_client: redis.Redis) -> None:
 
 def test_should_adhere_to_interface(redis_container: str) -> None:
     """Test that the RedisAdapter adheres to the expected interface."""
-    # Instantiation fails if interface not adhered to
+    assert issubclass(RedisAdapter, JsonRepositoryInterface)
     _ = RedisAdapter()
 
 
@@ -115,7 +113,6 @@ def test_should_log_error_on_exception_during_exit(
             raise ValueError("Simulated error")
     except ValueError:
         pass  # Expected
-
     # Assert error was logged
     assert "Error while exiting context" in caplog.text
 
@@ -135,8 +132,9 @@ def test_should_get_value(
     # Arrange
     key, data = data_in_redis
     # Act
-    value = redis_adapter._get(key)
+    value = redis_adapter.get(key)
     # Assert
+    assert value is not None
     assert value == data
 
 
@@ -145,7 +143,7 @@ def test_should_get_none_for_missing_key(
 ) -> None:
     """Test that getting a non-existent key returns None."""
     # Act
-    value = redis_adapter._get("nonexistent_key")
+    value = redis_adapter.get("nonexistent_key")
     # Assert
     assert value is None
 
@@ -159,7 +157,7 @@ def test_should_raise_value_error_on_invalid_get_key(
     # Act & Assert
     for key in invalid_keys:
         with pytest.raises(ValueError):
-            redis_adapter._get(key)  # type: ignore
+            redis_adapter.get(key)  # type: ignore
 
 
 def test_should_raise_connection_error_on_get_when_not_connected(
@@ -167,10 +165,10 @@ def test_should_raise_connection_error_on_get_when_not_connected(
 ) -> None:
     """Test that the RedisAdapter raises ConnectionError when getting while not connected."""
     # Arrange
-    adapter = RedisAdapter()
+    adapter = RedisAdapter()  # not connected
     # Act & Assert
     with pytest.raises(ConnectionError):
-        adapter._get("some_key")
+        adapter.get("some_key")
 
 
 def test_should_set_value(
@@ -180,10 +178,14 @@ def test_should_set_value(
     """Test that the RedisAdapter can set a value."""
     # Arrange
     key = "test_key"
+    received_data = redis_adapter.get(key)
+    assert received_data is None  # Ensure key does not exist
     # Act
-    redis_adapter._set(key, data)
+    redis_adapter.set(key, data)
     # Assert
-    assert redis_adapter._get(key) == data
+    received_data = redis_adapter.get(key)
+    assert received_data is not None
+    assert received_data == data
 
 
 def test_should_update_value(
@@ -194,10 +196,13 @@ def test_should_update_value(
     # Arrange
     key, _ = data_in_redis
     new_data = {"new_key": "new_value"}
+    received_data = redis_adapter.get(key)
+    assert received_data is not None
+    assert received_data != new_data
     # Act
-    redis_adapter._set(key, new_data)
+    redis_adapter.set(key, new_data)
     # Assert
-    assert redis_adapter._get(key) == new_data
+    assert redis_adapter.get(key) == new_data
 
 
 def test_should_raise_value_error_on_invalid_set_key(
@@ -210,7 +215,7 @@ def test_should_raise_value_error_on_invalid_set_key(
     # Act & Assert
     for key in invalid_keys:
         with pytest.raises(ValueError):
-            redis_adapter._set(key, data)  # type: ignore
+            redis_adapter.set(key, data)  # type: ignore
 
 
 def test_should_raise_value_error_on_invalid_set_data(
@@ -223,7 +228,7 @@ def test_should_raise_value_error_on_invalid_set_data(
     # Act & Assert
     for data in invalid_data:
         with pytest.raises(ValueError):
-            redis_adapter._set(key, data)  # type: ignore
+            redis_adapter.set(key, data)  # type: ignore
 
 
 def test_should_raise_connection_error_on_set_when_not_connected(
@@ -236,7 +241,7 @@ def test_should_raise_connection_error_on_set_when_not_connected(
     key = "test_key"
     # Act & Assert
     with pytest.raises(ConnectionError):
-        adapter._set(key, data)
+        adapter.set(key, data)
 
 
 def test_should_delete_key(
@@ -246,10 +251,12 @@ def test_should_delete_key(
     """Test that deleting a key removes it from Redis."""
     # Arrange
     key, _ = data_in_redis
+    received_data = redis_adapter.get(key)
+    assert received_data is not None  # Ensure key exists
     # Act
-    redis_adapter._delete(key)
+    redis_adapter.delete(key)
     # Assert
-    assert redis_adapter._get(key) is None
+    assert redis_adapter.get(key) is None
 
 
 def test_should_raise_value_error_on_invalid_delete_key(
@@ -261,7 +268,7 @@ def test_should_raise_value_error_on_invalid_delete_key(
     # Act & Assert
     for key in invalid_keys:
         with pytest.raises(ValueError):
-            redis_adapter._delete(key)  # type: ignore
+            redis_adapter.delete(key)  # type: ignore
 
 
 def test_should_raise_connection_error_on_delete_when_not_connected(
@@ -272,7 +279,7 @@ def test_should_raise_connection_error_on_delete_when_not_connected(
     adapter = RedisAdapter()
     # Act & Assert
     with pytest.raises(ConnectionError):
-        adapter._delete("some_key")
+        adapter.delete("some_key")
 
 
 def test_should_list_keys(
@@ -280,10 +287,10 @@ def test_should_list_keys(
 ) -> None:
     """Test listing keys matching a pattern returns correct keys."""
     # Arrange
-    redis_adapter._set("key1", {"a": 1})
+    redis_adapter.set("key1", {"a": 1})
-    redis_adapter._set("key2", {"b": 2})
+    redis_adapter.set("key2", {"b": 2})
     # Act
-    keys = redis_adapter._list_keys("key*")
+    keys = redis_adapter.list_keys("key*")
     # Assert
     assert set(keys) == {"key1", "key2"}
 
@@ -297,7 +304,7 @@ def test_should_raise_value_error_on_invalid_list_keys_pattern(
     # Act & Assert
     for pattern in invalid_patterns:
         with pytest.raises(ValueError):
-            redis_adapter._list_keys(pattern)  # type: ignore
+            redis_adapter.list_keys(pattern)  # type: ignore
 
 
 def test_should_raise_connection_error_on_list_keys_when_not_connected(
@@ -308,7 +315,7 @@ def test_should_raise_connection_error_on_list_keys_when_not_connected(
     adapter = RedisAdapter()
     # Act & Assert
     with pytest.raises(ConnectionError):
-        adapter._list_keys("some_pattern")
+        adapter.list_keys("some_pattern")
 
 
 # allows local debugging by running file as script