Version 0.5.0

* chore: cleanup + add tests

* chore: remove graph and show fixtures commands

* feat: add async_command wrapper

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "fastapi-toolsets"
-version = "0.4.1"
+version = "0.5.0"
 description = "Reusable tools for FastAPI: async CRUD, fixtures, CLI, and standardized responses for SQLAlchemy + PostgreSQL"
 readme = "README.md"
 license = "MIT"
@@ -59,7 +59,7 @@ dev = [
 ]
 
 [project.scripts]
-fastapi-toolsets = "fastapi_toolsets.cli:app"
+manager = "fastapi_toolsets.cli:cli"
 
 [build-system]
 requires = ["uv_build>=0.9.26,<0.10.0"]

src/fastapi_toolsets/__init__.py

@@ -21,4 +21,4 @@ Example usage:
         return Response(data={"user": user.username}, message="Success")
 """
 
-__version__ = "0.4.1"
+__version__ = "0.5.0"

src/fastapi_toolsets/cli/__init__.py

@@ -1,5 +1,6 @@
 """CLI for FastAPI projects."""
 
-from .app import app, register_command
+from .app import cli
+from .utils import async_command
 
-__all__ = ["app", "register_command"]
+__all__ = ["async_command", "cli"]

src/fastapi_toolsets/cli/app.py

@@ -1,97 +1,25 @@
 """Main CLI application."""
 
-import importlib.util
-import sys
-from pathlib import Path
-from typing import Annotated
-
 import typer
 
-from .commands import fixtures
+from .config import load_config
 
-app = typer.Typer(
+cli = typer.Typer(
-    name="fastapi-utils",
+    name="manager",
     help="CLI utilities for FastAPI projects.",
     no_args_is_help=True,
 )
 
-# Register built-in commands
+_config = load_config()
-app.add_typer(fixtures.app, name="fixtures")
+
+if _config.fixtures:
+    from .commands.fixtures import fixture_cli
+
+    cli.add_typer(fixture_cli, name="fixtures")
 
 
-def register_command(command: typer.Typer, name: str) -> None:
+@cli.callback()
-    """Register a custom command group.
+def main(ctx: typer.Context) -> None:
-
-    Args:
-        command: Typer app for the command group
-        name: Name for the command group
-
-    Example:
-        # In your project's cli.py:
-        import typer
-        from fastapi_toolsets.cli import app, register_command
-
-        my_commands = typer.Typer()
-
-        @my_commands.command()
-        def seed():
-            '''Seed the database.'''
-            ...
-
-        register_command(my_commands, "db")
-        # Now available as: fastapi-utils db seed
-    """
-    app.add_typer(command, name=name)
-
-
-@app.callback()
-def main(
-    ctx: typer.Context,
-    config: Annotated[
-        Path | None,
-        typer.Option(
-            "--config",
-            "-c",
-            help="Path to project config file (Python module with fixtures registry).",
-            envvar="FASTAPI_TOOLSETS_CONFIG",
-        ),
-    ] = None,
-) -> None:
     """FastAPI utilities CLI."""
     ctx.ensure_object(dict)
-
+    ctx.obj["config"] = _config
-    if config:
-        ctx.obj["config_path"] = config
-        # Load the config module
-        config_module = _load_module_from_path(config)
-        ctx.obj["config_module"] = config_module
-
-
-def _load_module_from_path(path: Path) -> object:
-    """Load a Python module from a file path.
-
-    Handles both absolute and relative imports by adding the config's
-    parent directory to sys.path temporarily.
-    """
-    path = path.resolve()
-
-    # Add the parent directory to sys.path to support relative imports
-    parent_dir = str(
-        path.parent.parent
-    )  # Go up two levels (e.g., from app/cli_config.py to project root)
-    if parent_dir not in sys.path:
-        sys.path.insert(0, parent_dir)
-
-    # Also add immediate parent for direct module imports
-    immediate_parent = str(path.parent)
-    if immediate_parent not in sys.path:
-        sys.path.insert(0, immediate_parent)
-
-    spec = importlib.util.spec_from_file_location("config", path)
-    if spec is None or spec.loader is None:
-        raise typer.BadParameter(f"Cannot load module from {path}")
-
-    module = importlib.util.module_from_spec(spec)
-    sys.modules["config"] = module
-    spec.loader.exec_module(module)
-    return module

src/fastapi_toolsets/cli/commands/fixtures.py

@@ -1,55 +1,29 @@
 """Fixture management commands."""
 
-import asyncio
 from typing import Annotated
 
 import typer
+from rich.console import Console
+from rich.table import Table
 
-from ...fixtures import Context, FixtureRegistry, LoadStrategy, load_fixtures_by_context
+from ...fixtures import Context, LoadStrategy, load_fixtures_by_context
+from ..config import CliConfig
+from ..utils import async_command
 
-app = typer.Typer(
+fixture_cli = typer.Typer(
     name="fixtures",
     help="Manage database fixtures.",
     no_args_is_help=True,
 )
+console = Console()
 
 
-def _get_registry(ctx: typer.Context) -> FixtureRegistry:
+def _get_config(ctx: typer.Context) -> CliConfig:
-    """Get fixture registry from context."""
+    """Get CLI config from context."""
-    config = ctx.obj.get("config_module") if ctx.obj else None
+    return ctx.obj["config"]
-    if config is None:
-        raise typer.BadParameter(
-            "No config provided. Use --config to specify a config file with a 'fixtures' registry."
-        )
-
-    registry = getattr(config, "fixtures", None)
-    if registry is None:
-        raise typer.BadParameter(
-            "Config module must have a 'fixtures' attribute (FixtureRegistry instance)."
-        )
-
-    if not isinstance(registry, FixtureRegistry):
-        raise typer.BadParameter(
-            f"'fixtures' must be a FixtureRegistry instance, got {type(registry).__name__}"
-        )
-
-    return registry
 
 
-def _get_db_context(ctx: typer.Context):
+@fixture_cli.command("list")
-    """Get database context manager from config."""
-    config = ctx.obj.get("config_module") if ctx.obj else None
-    if config is None:
-        raise typer.BadParameter("No config provided.")
-
-    get_db_context = getattr(config, "get_db_context", None)
-    if get_db_context is None:
-        raise typer.BadParameter("Config module must have a 'get_db_context' function.")
-
-    return get_db_context
-
-
-@app.command("list")
 def list_fixtures(
     ctx: typer.Context,
     context: Annotated[
@@ -62,64 +36,28 @@ def list_fixtures(
     ] = None,
 ) -> None:
     """List all registered fixtures."""
-    registry = _get_registry(ctx)
+    config = _get_config(ctx)
-
+    registry = config.get_fixtures_registry()
-    if context:
+    fixtures = registry.get_by_context(context) if context else registry.get_all()
-        fixtures = registry.get_by_context(context)
-    else:
-        fixtures = registry.get_all()
 
     if not fixtures:
-        typer.echo("No fixtures found.")
+        print("No fixtures found.")
         return
 
-    typer.echo(f"\n{'Name':<30} {'Contexts':<30} {'Dependencies'}")
+    table = Table("Name", "Contexts", "Dependencies")
-    typer.echo("-" * 80)
 
     for fixture in fixtures:
         contexts = ", ".join(fixture.contexts)
         deps = ", ".join(fixture.depends_on) if fixture.depends_on else "-"
-        typer.echo(f"{fixture.name:<30} {contexts:<30} {deps}")
+        table.add_row(fixture.name, contexts, deps)
 
-    typer.echo(f"\nTotal: {len(fixtures)} fixture(s)")
+    console.print(table)
+    print(f"\nTotal: {len(fixtures)} fixture(s)")
 
 
-@app.command("graph")
+@fixture_cli.command("load")
-def show_graph(
+@async_command
-    ctx: typer.Context,
+async def load(
-    fixture_name: Annotated[
-        str | None,
-        typer.Argument(help="Show dependencies for a specific fixture."),
-    ] = None,
-) -> None:
-    """Show fixture dependency graph."""
-    registry = _get_registry(ctx)
-
-    if fixture_name:
-        try:
-            order = registry.resolve_dependencies(fixture_name)
-            typer.echo(f"\nDependency chain for '{fixture_name}':\n")
-            for i, name in enumerate(order):
-                indent = "  " * i
-                arrow = "└─> " if i > 0 else ""
-                typer.echo(f"{indent}{arrow}{name}")
-        except KeyError:
-            typer.echo(f"Fixture '{fixture_name}' not found.", err=True)
-            raise typer.Exit(1)
-    else:
-        # Show full graph
-        fixtures = registry.get_all()
-
-        typer.echo("\nFixture Dependency Graph:\n")
-        for fixture in fixtures:
-            deps = (
-                f" -> [{', '.join(fixture.depends_on)}]" if fixture.depends_on else ""
-            )
-            typer.echo(f"  {fixture.name}{deps}")
-
-
-@app.command("load")
-def load(
     ctx: typer.Context,
     contexts: Annotated[
         list[str] | None,
@@ -141,16 +79,12 @@ def load(
     ] = False,
 ) -> None:
     """Load fixtures into the database."""
-    registry = _get_registry(ctx)
+    config = _get_config(ctx)
-    get_db_context = _get_db_context(ctx)
+    registry = config.get_fixtures_registry()
+    get_db_context = config.get_db_context()
 
-    # Parse contexts
+    context_list = contexts if contexts else [Context.BASE]
-    if contexts:
-        context_list = contexts
-    else:
-        context_list = [Context.BASE]
 
-    # Parse strategy
     try:
         load_strategy = LoadStrategy(strategy)
     except ValueError:
@@ -159,67 +93,27 @@ def load(
         )
         raise typer.Exit(1)
 
-    # Resolve what will be loaded
     ordered = registry.resolve_context_dependencies(*context_list)
 
     if not ordered:
-        typer.echo("No fixtures to load for the specified context(s).")
+        print("No fixtures to load for the specified context(s).")
         return
 
-    typer.echo(f"\nFixtures to load ({load_strategy.value} strategy):")
+    print(f"\nFixtures to load ({load_strategy.value} strategy):")
     for name in ordered:
         fixture = registry.get(name)
         instances = list(fixture.func())
         model_name = type(instances[0]).__name__ if instances else "?"
-        typer.echo(f"  - {name}: {len(instances)} {model_name}(s)")
+        print(f"  - {name}: {len(instances)} {model_name}(s)")
 
     if dry_run:
-        typer.echo("\n[Dry run - no changes made]")
+        print("\n[Dry run - no changes made]")
         return
 
-    typer.echo("\nLoading...")
-
-    async def do_load():
     async with get_db_context() as session:
         result = await load_fixtures_by_context(
             session, registry, *context_list, strategy=load_strategy
         )
-            return result
-
-    result = asyncio.run(do_load())
 
     total = sum(len(items) for items in result.values())
-    typer.echo(f"\nLoaded {total} record(s) successfully.")
+    print(f"\nLoaded {total} record(s) successfully.")
-
-
-@app.command("show")
-def show_fixture(
-    ctx: typer.Context,
-    name: Annotated[str, typer.Argument(help="Fixture name to show.")],
-) -> None:
-    """Show details of a specific fixture."""
-    registry = _get_registry(ctx)
-
-    try:
-        fixture = registry.get(name)
-    except KeyError:
-        typer.echo(f"Fixture '{name}' not found.", err=True)
-        raise typer.Exit(1)
-
-    typer.echo(f"\nFixture: {fixture.name}")
-    typer.echo(f"Contexts: {', '.join(fixture.contexts)}")
-    typer.echo(
-        f"Dependencies: {', '.join(fixture.depends_on) if fixture.depends_on else 'None'}"
-    )
-
-    # Show instances
-    instances = list(fixture.func())
-    if instances:
-        model_name = type(instances[0]).__name__
-        typer.echo(f"\nInstances ({len(instances)} {model_name}):")
-        for instance in instances[:10]:  # Limit to 10
-            typer.echo(f"  - {instance!r}")
-        if len(instances) > 10:
-            typer.echo(f"  ... and {len(instances) - 10} more")
-    else:
-        typer.echo("\nNo instances (empty fixture)")

src/fastapi_toolsets/cli/config.py

@@ -0,0 +1,92 @@
+"""CLI configuration."""
+
+import importlib
+import sys
+import tomllib
+from dataclasses import dataclass
+from pathlib import Path
+
+import typer
+
+
+@dataclass
+class CliConfig:
+    """CLI configuration loaded from pyproject.toml."""
+
+    fixtures: str | None = None
+    db_context: str | None = None
+
+    def get_fixtures_registry(self):
+        """Import and return the fixtures registry."""
+        from ..fixtures import FixtureRegistry
+
+        if not self.fixtures:
+            raise typer.BadParameter(
+                "No fixtures registry configured. "
+                "Add 'fixtures' to [tool.fastapi-toolsets] in pyproject.toml."
+            )
+
+        registry = _import_from_string(self.fixtures)
+
+        if not isinstance(registry, FixtureRegistry):
+            raise typer.BadParameter(
+                f"'fixtures' must be a FixtureRegistry instance, got {type(registry).__name__}"
+            )
+
+        return registry
+
+    def get_db_context(self):
+        """Import and return the db_context function."""
+        if not self.db_context:
+            raise typer.BadParameter(
+                "No db_context configured. "
+                "Add 'db_context' to [tool.fastapi-toolsets] in pyproject.toml."
+            )
+        return _import_from_string(self.db_context)
+
+
+def _import_from_string(import_path: str):
+    """Import an object from a string path like 'module.submodule:attribute'."""
+    if ":" not in import_path:
+        raise typer.BadParameter(
+            f"Invalid import path '{import_path}'. Expected format: 'module:attribute'"
+        )
+
+    module_path, attr_name = import_path.rsplit(":", 1)
+
+    # Add cwd to sys.path for local imports
+    cwd = str(Path.cwd())
+    if cwd not in sys.path:
+        sys.path.insert(0, cwd)
+
+    try:
+        module = importlib.import_module(module_path)
+    except ImportError as e:
+        raise typer.BadParameter(f"Cannot import module '{module_path}': {e}")
+
+    if not hasattr(module, attr_name):
+        raise typer.BadParameter(
+            f"Module '{module_path}' has no attribute '{attr_name}'"
+        )
+
+    return getattr(module, attr_name)
+
+
+def load_config() -> CliConfig:
+    """Load CLI configuration from pyproject.toml."""
+    pyproject_path = Path.cwd() / "pyproject.toml"
+
+    if not pyproject_path.exists():
+        return CliConfig()
+
+    try:
+        with open(pyproject_path, "rb") as f:
+            data = tomllib.load(f)
+
+        tool_config = data.get("tool", {}).get("fastapi-toolsets", {})
+        return CliConfig(
+            fixtures=tool_config.get("fixtures"),
+            db_context=tool_config.get("db_context"),
+        )
+    except Exception:
+        return CliConfig()

src/fastapi_toolsets/cli/utils.py

@@ -0,0 +1,27 @@
+"""CLI utility functions."""
+
+import asyncio
+import functools
+from collections.abc import Callable, Coroutine
+from typing import Any, ParamSpec, TypeVar
+
+P = ParamSpec("P")
+T = TypeVar("T")
+
+
+def async_command(func: Callable[P, Coroutine[Any, Any, T]]) -> Callable[P, T]:
+    """Decorator to run an async function as a sync CLI command.
+
+    Example:
+        @fixture_cli.command("load")
+        @async_command
+        async def load(ctx: typer.Context) -> None:
+            async with get_db_context() as session:
+                await load_fixtures(session, registry)
+    """
+
+    @functools.wraps(func)
+    def wrapper(*args: P.args, **kwargs: P.kwargs) -> T:
+        return asyncio.run(func(*args, **kwargs))
+
+    return wrapper

src/fastapi_toolsets/crud/__init__.py

@@ -4,7 +4,6 @@ from ..exceptions import NoSearchableFieldsError
 from .factory import CrudFactory
 from .search import (
     SearchConfig,
-    SearchFieldType,
     get_searchable_fields,
 )
 
@@ -13,5 +12,4 @@ __all__ = [
     "get_searchable_fields",
     "NoSearchableFieldsError",
     "SearchConfig",
-    "SearchFieldType",
 ]

src/fastapi_toolsets/crud/factory.py

@@ -17,6 +17,7 @@ from ..exceptions import NotFoundError
 from .search import SearchConfig, SearchFieldType, build_search_filters
 
 ModelType = TypeVar("ModelType", bound=DeclarativeBase)
+JoinType = list[tuple[type[DeclarativeBase], Any]]
 
 
 class AsyncCrud(Generic[ModelType]):
@@ -55,6 +56,8 @@ class AsyncCrud(Generic[ModelType]):
         session: AsyncSession,
         filters: list[Any],
         *,
+        joins: JoinType | None = None,
+        outer_join: bool = False,
         with_for_update: bool = False,
         load_options: list[Any] | None = None,
     ) -> ModelType:
@@ -63,6 +66,8 @@ class AsyncCrud(Generic[ModelType]):
         Args:
             session: DB async session
             filters: List of SQLAlchemy filter conditions
+            joins: List of (model, condition) tuples for joining related tables
+            outer_join: Use LEFT OUTER JOIN instead of INNER JOIN
             with_for_update: Lock the row for update
             load_options: SQLAlchemy loader options (e.g., selectinload)
 
@@ -73,7 +78,15 @@ class AsyncCrud(Generic[ModelType]):
             NotFoundError: If no record found
             MultipleResultsFound: If more than one record found
         """
-        q = select(cls.model).where(and_(*filters))
+        q = select(cls.model)
+        if joins:
+            for model, condition in joins:
+                q = (
+                    q.outerjoin(model, condition)
+                    if outer_join
+                    else q.join(model, condition)
+                )
+        q = q.where(and_(*filters))
         if load_options:
             q = q.options(*load_options)
         if with_for_update:
@@ -90,6 +103,8 @@ class AsyncCrud(Generic[ModelType]):
         session: AsyncSession,
         filters: list[Any] | None = None,
         *,
+        joins: JoinType | None = None,
+        outer_join: bool = False,
         load_options: list[Any] | None = None,
     ) -> ModelType | None:
         """Get the first matching record, or None.
@@ -97,12 +112,21 @@ class AsyncCrud(Generic[ModelType]):
         Args:
             session: DB async session
             filters: List of SQLAlchemy filter conditions
+            joins: List of (model, condition) tuples for joining related tables
+            outer_join: Use LEFT OUTER JOIN instead of INNER JOIN
             load_options: SQLAlchemy loader options
 
         Returns:
             Model instance or None
         """
         q = select(cls.model)
+        if joins:
+            for model, condition in joins:
+                q = (
+                    q.outerjoin(model, condition)
+                    if outer_join
+                    else q.join(model, condition)
+                )
         if filters:
             q = q.where(and_(*filters))
         if load_options:
@@ -116,6 +140,8 @@ class AsyncCrud(Generic[ModelType]):
         session: AsyncSession,
         *,
         filters: list[Any] | None = None,
+        joins: JoinType | None = None,
+        outer_join: bool = False,
         load_options: list[Any] | None = None,
         order_by: Any | None = None,
         limit: int | None = None,
@@ -126,6 +152,8 @@ class AsyncCrud(Generic[ModelType]):
         Args:
             session: DB async session
             filters: List of SQLAlchemy filter conditions
+            joins: List of (model, condition) tuples for joining related tables
+            outer_join: Use LEFT OUTER JOIN instead of INNER JOIN
             load_options: SQLAlchemy loader options
             order_by: Column or list of columns to order by
             limit: Max number of rows to return
@@ -135,6 +163,13 @@ class AsyncCrud(Generic[ModelType]):
             List of model instances
         """
         q = select(cls.model)
+        if joins:
+            for model, condition in joins:
+                q = (
+                    q.outerjoin(model, condition)
+                    if outer_join
+                    else q.join(model, condition)
+                )
         if filters:
             q = q.where(and_(*filters))
         if load_options:
@@ -254,17 +289,29 @@ class AsyncCrud(Generic[ModelType]):
         cls: type[Self],
         session: AsyncSession,
         filters: list[Any] | None = None,
+        *,
+        joins: JoinType | None = None,
+        outer_join: bool = False,
     ) -> int:
         """Count records matching the filters.
 
         Args:
             session: DB async session
             filters: List of SQLAlchemy filter conditions
+            joins: List of (model, condition) tuples for joining related tables
+            outer_join: Use LEFT OUTER JOIN instead of INNER JOIN
 
         Returns:
             Number of matching records
         """
         q = select(func.count()).select_from(cls.model)
+        if joins:
+            for model, condition in joins:
+                q = (
+                    q.outerjoin(model, condition)
+                    if outer_join
+                    else q.join(model, condition)
+                )
         if filters:
             q = q.where(and_(*filters))
         result = await session.execute(q)
@@ -275,17 +322,30 @@ class AsyncCrud(Generic[ModelType]):
         cls: type[Self],
         session: AsyncSession,
         filters: list[Any],
+        *,
+        joins: JoinType | None = None,
+        outer_join: bool = False,
     ) -> bool:
         """Check if a record exists.
 
         Args:
             session: DB async session
             filters: List of SQLAlchemy filter conditions
+            joins: List of (model, condition) tuples for joining related tables
+            outer_join: Use LEFT OUTER JOIN instead of INNER JOIN
 
         Returns:
             True if at least one record matches
         """
-        q = select(cls.model).where(and_(*filters)).exists().select()
+        q = select(cls.model)
+        if joins:
+            for model, condition in joins:
+                q = (
+                    q.outerjoin(model, condition)
+                    if outer_join
+                    else q.join(model, condition)
+                )
+        q = q.where(and_(*filters)).exists().select()
         result = await session.execute(q)
         return bool(result.scalar())
 
@@ -295,6 +355,8 @@ class AsyncCrud(Generic[ModelType]):
         session: AsyncSession,
         *,
         filters: list[Any] | None = None,
+        joins: JoinType | None = None,
+        outer_join: bool = False,
         load_options: list[Any] | None = None,
         order_by: Any | None = None,
         page: int = 1,
@@ -307,6 +369,8 @@ class AsyncCrud(Generic[ModelType]):
         Args:
             session: DB async session
             filters: List of SQLAlchemy filter conditions
+            joins: List of (model, condition) tuples for joining related tables
+            outer_join: Use LEFT OUTER JOIN instead of INNER JOIN
             load_options: SQLAlchemy loader options
             order_by: Column or list of columns to order by
             page: Page number (1-indexed)
@@ -319,7 +383,7 @@ class AsyncCrud(Generic[ModelType]):
         """
         filters = list(filters) if filters else []
         offset = (page - 1) * items_per_page
-        joins: list[Any] = []
+        search_joins: list[Any] = []
 
         # Build search filters
         if search:
@@ -330,11 +394,21 @@ class AsyncCrud(Generic[ModelType]):
                 default_fields=cls.searchable_fields,
             )
             filters.extend(search_filters)
-            joins.extend(search_joins)
 
         # Build query with joins
         q = select(cls.model)
-        for join_rel in joins:
+
+        # Apply explicit joins
+        if joins:
+            for model, condition in joins:
+                q = (
+                    q.outerjoin(model, condition)
+                    if outer_join
+                    else q.join(model, condition)
+                )
+
+        # Apply search joins (always outer joins for search)
+        for join_rel in search_joins:
             q = q.outerjoin(join_rel)
 
         if filters:
@@ -352,8 +426,20 @@ class AsyncCrud(Generic[ModelType]):
         pk_col = cls.model.__mapper__.primary_key[0]
         count_q = select(func.count(func.distinct(getattr(cls.model, pk_col.name))))
         count_q = count_q.select_from(cls.model)
-        for join_rel in joins:
+
+        # Apply explicit joins to count query
+        if joins:
+            for model, condition in joins:
+                count_q = (
+                    count_q.outerjoin(model, condition)
+                    if outer_join
+                    else count_q.join(model, condition)
+                )
+
+        # Apply search joins to count query
+        for join_rel in search_joins:
             count_q = count_q.outerjoin(join_rel)
+
         if filters:
             count_q = count_q.where(and_(*filters))
 
@@ -404,6 +490,20 @@ def CrudFactory(
 
         # With search
         result = await UserCrud.paginate(session, search="john")
+
+        # With joins (inner join by default):
+        users = await UserCrud.get_multi(
+            session,
+            joins=[(Post, Post.user_id == User.id)],
+            filters=[Post.published == True],
+        )
+
+        # With outer join:
+        users = await UserCrud.get_multi(
+            session,
+            joins=[(Post, Post.user_id == User.id)],
+            outer_join=True,
+        )
     """
     cls = type(
         f"Async{model.__name__}Crud",

src/fastapi_toolsets/fixtures/registry.py

@@ -50,8 +50,16 @@ class FixtureRegistry:
             ]
     """
 
-    def __init__(self) -> None:
+    def __init__(
+        self,
+        contexts: list[str | Context] | None = None,
+    ) -> None:
         self._fixtures: dict[str, Fixture] = {}
+        self._default_contexts: list[str] | None = (
+            [c.value if isinstance(c, Context) else c for c in contexts]
+            if contexts
+            else None
+        )
 
     def register(
         self,
@@ -85,10 +93,14 @@ class FixtureRegistry:
             fn: Callable[[], Sequence[DeclarativeBase]],
         ) -> Callable[[], Sequence[DeclarativeBase]]:
             fixture_name = name or cast(Any, fn).__name__
+            if contexts is not None:
                 fixture_contexts = [
-                c.value if isinstance(c, Context) else c
+                    c.value if isinstance(c, Context) else c for c in contexts
-                for c in (contexts or [Context.BASE])
                 ]
+            elif self._default_contexts is not None:
+                fixture_contexts = self._default_contexts
+            else:
+                fixture_contexts = [Context.BASE.value]
 
             self._fixtures[fixture_name] = Fixture(
                 name=fixture_name,
@@ -102,6 +114,32 @@ class FixtureRegistry:
             return decorator(func)
         return decorator
 
+    def include_registry(self, registry: "FixtureRegistry") -> None:
+        """Include another `FixtureRegistry` in the same current `FixtureRegistry`.
+
+        Args:
+            registry: The `FixtureRegistry` to include
+
+        Raises:
+            ValueError: If a fixture name already exists in the current registry
+
+        Example:
+            registry = FixtureRegistry()
+            dev_registry = FixtureRegistry()
+
+            @dev_registry.register
+            def dev_data():
+                return [...]
+
+            registry.include_registry(registry=dev_registry)
+        """
+        for name, fixture in registry._fixtures.items():
+            if name in self._fixtures:
+                raise ValueError(
+                    f"Fixture '{name}' already exists in the current registry"
+                )
+            self._fixtures[name] = fixture
+
     def get(self, name: str) -> Fixture:
         """Get a fixture by name."""
         if name not in self._fixtures:

tests/test_cli.py

@@ -0,0 +1,322 @@
+"""Tests for fastapi_toolsets.cli module."""
+
+import sys
+
+import pytest
+from typer.testing import CliRunner
+
+from fastapi_toolsets.cli.config import CliConfig, _import_from_string, load_config
+from fastapi_toolsets.cli.utils import async_command
+from fastapi_toolsets.fixtures import FixtureRegistry
+
+runner = CliRunner()
+
+
+class TestCliConfig:
+    """Tests for CliConfig dataclass."""
+
+    def test_default_values(self):
+        """Config has None defaults."""
+        config = CliConfig()
+        assert config.fixtures is None
+        assert config.db_context is None
+
+    def test_with_values(self):
+        """Config stores provided values."""
+        config = CliConfig(
+            fixtures="app.fixtures:registry",
+            db_context="app.db:get_session",
+        )
+        assert config.fixtures == "app.fixtures:registry"
+        assert config.db_context == "app.db:get_session"
+
+    def test_get_fixtures_registry_without_config(self):
+        """get_fixtures_registry raises error when not configured."""
+        config = CliConfig()
+        with pytest.raises(Exception) as exc_info:
+            config.get_fixtures_registry()
+        assert "No fixtures registry configured" in str(exc_info.value)
+
+    def test_get_db_context_without_config(self):
+        """get_db_context raises error when not configured."""
+        config = CliConfig()
+        with pytest.raises(Exception) as exc_info:
+            config.get_db_context()
+        assert "No db_context configured" in str(exc_info.value)
+
+
+class TestImportFromString:
+    """Tests for _import_from_string function."""
+
+    def test_import_valid_path(self):
+        """Import valid module:attribute path."""
+        result = _import_from_string("fastapi_toolsets.fixtures:FixtureRegistry")
+        assert result is FixtureRegistry
+
+    def test_import_without_colon_raises_error(self):
+        """Import path without colon raises error."""
+        with pytest.raises(Exception) as exc_info:
+            _import_from_string("fastapi_toolsets.fixtures.FixtureRegistry")
+        assert "Expected format: 'module:attribute'" in str(exc_info.value)
+
+    def test_import_nonexistent_module_raises_error(self):
+        """Import nonexistent module raises error."""
+        with pytest.raises(Exception) as exc_info:
+            _import_from_string("nonexistent.module:something")
+        assert "Cannot import module" in str(exc_info.value)
+
+    def test_import_nonexistent_attribute_raises_error(self):
+        """Import nonexistent attribute raises error."""
+        with pytest.raises(Exception) as exc_info:
+            _import_from_string("fastapi_toolsets.fixtures:NonexistentClass")
+        assert "has no attribute" in str(exc_info.value)
+
+
+class TestLoadConfig:
+    """Tests for load_config function."""
+
+    def test_load_without_pyproject(self, tmp_path, monkeypatch):
+        """Returns empty config when no pyproject.toml exists."""
+        monkeypatch.chdir(tmp_path)
+        config = load_config()
+        assert config.fixtures is None
+        assert config.db_context is None
+
+    def test_load_without_tool_section(self, tmp_path, monkeypatch):
+        """Returns empty config when no [tool.fastapi-toolsets] section."""
+        pyproject = tmp_path / "pyproject.toml"
+        pyproject.write_text("[project]\nname = 'test'\n")
+        monkeypatch.chdir(tmp_path)
+
+        config = load_config()
+        assert config.fixtures is None
+        assert config.db_context is None
+
+    def test_load_with_fixtures_config(self, tmp_path, monkeypatch):
+        """Loads fixtures config from pyproject.toml."""
+        pyproject = tmp_path / "pyproject.toml"
+        pyproject.write_text(
+            '[tool.fastapi-toolsets]\nfixtures = "app.fixtures:registry"\n'
+        )
+        monkeypatch.chdir(tmp_path)
+
+        config = load_config()
+        assert config.fixtures == "app.fixtures:registry"
+        assert config.db_context is None
+
+    def test_load_with_full_config(self, tmp_path, monkeypatch):
+        """Loads full config from pyproject.toml."""
+        pyproject = tmp_path / "pyproject.toml"
+        pyproject.write_text(
+            "[tool.fastapi-toolsets]\n"
+            'fixtures = "app.fixtures:registry"\n'
+            'db_context = "app.db:get_session"\n'
+        )
+        monkeypatch.chdir(tmp_path)
+
+        config = load_config()
+        assert config.fixtures == "app.fixtures:registry"
+        assert config.db_context == "app.db:get_session"
+
+    def test_load_with_invalid_toml(self, tmp_path, monkeypatch):
+        """Returns empty config when pyproject.toml is invalid."""
+        pyproject = tmp_path / "pyproject.toml"
+        pyproject.write_text("invalid toml {{{")
+        monkeypatch.chdir(tmp_path)
+
+        config = load_config()
+        assert config.fixtures is None
+
+
+class TestCliApp:
+    """Tests for CLI application."""
+
+    def test_cli_import(self):
+        """CLI can be imported."""
+        from fastapi_toolsets.cli import cli
+
+        assert cli is not None
+
+    def test_cli_help(self, tmp_path, monkeypatch):
+        """CLI shows help without fixtures."""
+        monkeypatch.chdir(tmp_path)
+
+        # Need to reload the module to pick up new cwd
+        import importlib
+
+        from fastapi_toolsets.cli import app
+
+        importlib.reload(app)
+
+        result = runner.invoke(app.cli, ["--help"])
+        assert result.exit_code == 0
+        assert "CLI utilities for FastAPI projects" in result.output
+
+
+class TestFixturesCli:
+    """Tests for fixtures CLI commands."""
+
+    @pytest.fixture
+    def cli_env(self, tmp_path, monkeypatch):
+        """Set up CLI environment with fixtures config."""
+        # Create pyproject.toml
+        pyproject = tmp_path / "pyproject.toml"
+        pyproject.write_text(
+            "[tool.fastapi-toolsets]\n"
+            'fixtures = "fixtures:registry"\n'
+            'db_context = "db:get_session"\n'
+        )
+
+        # Create fixtures module
+        fixtures_file = tmp_path / "fixtures.py"
+        fixtures_file.write_text(
+            "from fastapi_toolsets.fixtures import FixtureRegistry, Context\n"
+            "\n"
+            "registry = FixtureRegistry()\n"
+            "\n"
+            "@registry.register(contexts=[Context.BASE])\n"
+            "def roles():\n"
+            '    return [{"id": 1, "name": "admin"}, {"id": 2, "name": "user"}]\n'
+            "\n"
+            '@registry.register(depends_on=["roles"], contexts=[Context.TESTING])\n'
+            "def users():\n"
+            '    return [{"id": 1, "name": "alice", "role_id": 1}]\n'
+        )
+
+        # Create db module
+        db_file = tmp_path / "db.py"
+        db_file.write_text(
+            "from contextlib import asynccontextmanager\n"
+            "\n"
+            "@asynccontextmanager\n"
+            "async def get_session():\n"
+            "    yield None\n"
+        )
+
+        monkeypatch.chdir(tmp_path)
+
+        # Add tmp_path to sys.path for imports
+        if str(tmp_path) not in sys.path:
+            sys.path.insert(0, str(tmp_path))
+
+        # Reload the CLI module to pick up new config
+        import importlib
+
+        from fastapi_toolsets.cli import app, config
+
+        importlib.reload(config)
+        importlib.reload(app)
+
+        yield tmp_path, app.cli
+
+        # Cleanup
+        if str(tmp_path) in sys.path:
+            sys.path.remove(str(tmp_path))
+
+    def test_fixtures_list(self, cli_env):
+        """fixtures list shows registered fixtures."""
+        tmp_path, cli = cli_env
+        result = runner.invoke(cli, ["fixtures", "list"])
+
+        assert result.exit_code == 0
+        assert "roles" in result.output
+        assert "users" in result.output
+        assert "Total: 2 fixture(s)" in result.output
+
+    def test_fixtures_list_with_context(self, cli_env):
+        """fixtures list --context filters by context."""
+        tmp_path, cli = cli_env
+        result = runner.invoke(cli, ["fixtures", "list", "--context", "base"])
+
+        assert result.exit_code == 0
+        assert "roles" in result.output
+        assert "users" not in result.output
+        assert "Total: 1 fixture(s)" in result.output
+
+    def test_fixtures_load_dry_run(self, cli_env):
+        """fixtures load --dry-run shows what would be loaded."""
+        tmp_path, cli = cli_env
+        result = runner.invoke(cli, ["fixtures", "load", "base", "--dry-run"])
+
+        assert result.exit_code == 0
+        assert "Fixtures to load" in result.output
+        assert "roles" in result.output
+        assert "[Dry run - no changes made]" in result.output
+
+    def test_fixtures_load_invalid_strategy(self, cli_env):
+        """fixtures load with invalid strategy shows error."""
+        tmp_path, cli = cli_env
+        result = runner.invoke(
+            cli, ["fixtures", "load", "base", "--strategy", "invalid"]
+        )
+
+        assert result.exit_code == 1
+        assert "Invalid strategy" in result.output
+
+
+class TestCliWithoutFixturesConfig:
+    """Tests for CLI when fixtures is not configured."""
+
+    def test_no_fixtures_command(self, tmp_path, monkeypatch):
+        """fixtures command is not available when not configured."""
+        # Create pyproject.toml without fixtures
+        pyproject = tmp_path / "pyproject.toml"
+        pyproject.write_text('[project]\nname = "test"\n')
+
+        monkeypatch.chdir(tmp_path)
+
+        # Reload the CLI module
+        import importlib
+
+        from fastapi_toolsets.cli import app, config
+
+        importlib.reload(config)
+        importlib.reload(app)
+
+        result = runner.invoke(app.cli, ["--help"])
+
+        assert result.exit_code == 0
+        assert "fixtures" not in result.output
+
+
+class TestAsyncCommand:
+    """Tests for async_command decorator."""
+
+    def test_async_command_runs_coroutine(self):
+        """async_command runs async function synchronously."""
+
+        @async_command
+        async def async_func(value: int) -> int:
+            return value * 2
+
+        result = async_func(21)
+        assert result == 42
+
+    def test_async_command_preserves_signature(self):
+        """async_command preserves function signature."""
+
+        @async_command
+        async def async_func(name: str, count: int = 1) -> str:
+            return f"{name} x {count}"
+
+        result = async_func("test", count=3)
+        assert result == "test x 3"
+
+    def test_async_command_preserves_docstring(self):
+        """async_command preserves function docstring."""
+
+        @async_command
+        async def async_func() -> None:
+            """This is a docstring."""
+            pass
+
+        assert async_func.__doc__ == """This is a docstring."""
+
+    def test_async_command_preserves_name(self):
+        """async_command preserves function name."""
+
+        @async_command
+        async def my_async_function() -> None:
+            pass
+
+        assert my_async_function.__name__ == "my_async_function"

tests/test_crud.py

@@ -10,6 +10,9 @@ from fastapi_toolsets.crud.factory import AsyncCrud
 from fastapi_toolsets.exceptions import NotFoundError
 
 from .conftest import (
+    Post,
+    PostCreate,
+    PostCrud,
     Role,
     RoleCreate,
     RoleCrud,
@@ -481,3 +484,271 @@ class TestCrudPaginate:
 
         names = [r.name for r in result["data"]]
         assert names == ["alpha", "bravo", "charlie"]
+
+
+class TestCrudJoins:
+    """Tests for CRUD operations with joins."""
+
+    @pytest.mark.anyio
+    async def test_get_with_join(self, db_session: AsyncSession):
+        """Get with inner join filters correctly."""
+        # Create user with posts
+        user = await UserCrud.create(
+            db_session,
+            UserCreate(username="author", email="author@test.com"),
+        )
+        await PostCrud.create(
+            db_session,
+            PostCreate(title="Post 1", author_id=user.id, is_published=True),
+        )
+
+        # Get user with join on published posts
+        fetched = await UserCrud.get(
+            db_session,
+            filters=[User.id == user.id, Post.is_published == True],  # noqa: E712
+            joins=[(Post, Post.author_id == User.id)],
+        )
+        assert fetched.id == user.id
+
+    @pytest.mark.anyio
+    async def test_first_with_join(self, db_session: AsyncSession):
+        """First with join returns matching record."""
+        user = await UserCrud.create(
+            db_session,
+            UserCreate(username="writer", email="writer@test.com"),
+        )
+        await PostCrud.create(
+            db_session,
+            PostCreate(title="Draft", author_id=user.id, is_published=False),
+        )
+
+        # Find user with unpublished posts
+        result = await UserCrud.first(
+            db_session,
+            filters=[Post.is_published == False],  # noqa: E712
+            joins=[(Post, Post.author_id == User.id)],
+        )
+        assert result is not None
+        assert result.id == user.id
+
+    @pytest.mark.anyio
+    async def test_first_with_outer_join(self, db_session: AsyncSession):
+        """First with outer join includes records without related data."""
+        # User without posts
+        user = await UserCrud.create(
+            db_session,
+            UserCreate(username="no_posts", email="no_posts@test.com"),
+        )
+
+        # With outer join, user should be found even without posts
+        result = await UserCrud.first(
+            db_session,
+            filters=[User.id == user.id],
+            joins=[(Post, Post.author_id == User.id)],
+            outer_join=True,
+        )
+        assert result is not None
+        assert result.id == user.id
+
+    @pytest.mark.anyio
+    async def test_get_multi_with_inner_join(self, db_session: AsyncSession):
+        """Get multiple with inner join only returns matching records."""
+        # User with published post
+        user1 = await UserCrud.create(
+            db_session,
+            UserCreate(username="publisher", email="pub@test.com"),
+        )
+        await PostCrud.create(
+            db_session,
+            PostCreate(title="Published", author_id=user1.id, is_published=True),
+        )
+
+        # User without posts
+        await UserCrud.create(
+            db_session,
+            UserCreate(username="lurker", email="lurk@test.com"),
+        )
+
+        # Inner join should only return user with published post
+        users = await UserCrud.get_multi(
+            db_session,
+            joins=[(Post, Post.author_id == User.id)],
+            filters=[Post.is_published == True],  # noqa: E712
+        )
+        assert len(users) == 1
+        assert users[0].username == "publisher"
+
+    @pytest.mark.anyio
+    async def test_get_multi_with_outer_join(self, db_session: AsyncSession):
+        """Get multiple with outer join includes all records."""
+        # User with post
+        user1 = await UserCrud.create(
+            db_session,
+            UserCreate(username="has_post", email="has@test.com"),
+        )
+        await PostCrud.create(
+            db_session,
+            PostCreate(title="My Post", author_id=user1.id),
+        )
+
+        # User without posts
+        await UserCrud.create(
+            db_session,
+            UserCreate(username="no_post", email="no@test.com"),
+        )
+
+        # Outer join should return both users
+        users = await UserCrud.get_multi(
+            db_session,
+            joins=[(Post, Post.author_id == User.id)],
+            outer_join=True,
+        )
+        assert len(users) == 2
+
+    @pytest.mark.anyio
+    async def test_count_with_join(self, db_session: AsyncSession):
+        """Count with join counts correctly."""
+        # Create users with different post statuses
+        user1 = await UserCrud.create(
+            db_session,
+            UserCreate(username="active_author", email="active@test.com"),
+        )
+        await PostCrud.create(
+            db_session,
+            PostCreate(title="Published 1", author_id=user1.id, is_published=True),
+        )
+
+        user2 = await UserCrud.create(
+            db_session,
+            UserCreate(username="draft_author", email="draft@test.com"),
+        )
+        await PostCrud.create(
+            db_session,
+            PostCreate(title="Draft 1", author_id=user2.id, is_published=False),
+        )
+
+        # Count users with published posts
+        count = await UserCrud.count(
+            db_session,
+            filters=[Post.is_published == True],  # noqa: E712
+            joins=[(Post, Post.author_id == User.id)],
+        )
+        assert count == 1
+
+    @pytest.mark.anyio
+    async def test_exists_with_join(self, db_session: AsyncSession):
+        """Exists with join checks correctly."""
+        user = await UserCrud.create(
+            db_session,
+            UserCreate(username="poster", email="poster@test.com"),
+        )
+        await PostCrud.create(
+            db_session,
+            PostCreate(title="Exists Post", author_id=user.id, is_published=True),
+        )
+
+        # Check if user with published post exists
+        exists = await UserCrud.exists(
+            db_session,
+            filters=[Post.is_published == True],  # noqa: E712
+            joins=[(Post, Post.author_id == User.id)],
+        )
+        assert exists is True
+
+        # Check if user with specific title exists
+        exists = await UserCrud.exists(
+            db_session,
+            filters=[Post.title == "Nonexistent"],
+            joins=[(Post, Post.author_id == User.id)],
+        )
+        assert exists is False
+
+    @pytest.mark.anyio
+    async def test_paginate_with_join(self, db_session: AsyncSession):
+        """Paginate with join works correctly."""
+        # Create users with posts
+        for i in range(5):
+            user = await UserCrud.create(
+                db_session,
+                UserCreate(username=f"author{i}", email=f"author{i}@test.com"),
+            )
+            await PostCrud.create(
+                db_session,
+                PostCreate(
+                    title=f"Post {i}",
+                    author_id=user.id,
+                    is_published=i % 2 == 0,
+                ),
+            )
+
+        # Paginate users with published posts
+        result = await UserCrud.paginate(
+            db_session,
+            joins=[(Post, Post.author_id == User.id)],
+            filters=[Post.is_published == True],  # noqa: E712
+            page=1,
+            items_per_page=10,
+        )
+
+        assert result["pagination"]["total_count"] == 3
+        assert len(result["data"]) == 3
+
+    @pytest.mark.anyio
+    async def test_paginate_with_outer_join(self, db_session: AsyncSession):
+        """Paginate with outer join includes all records."""
+        # User with post
+        user1 = await UserCrud.create(
+            db_session,
+            UserCreate(username="with_post", email="with@test.com"),
+        )
+        await PostCrud.create(
+            db_session,
+            PostCreate(title="A Post", author_id=user1.id),
+        )
+
+        # User without post
+        await UserCrud.create(
+            db_session,
+            UserCreate(username="without_post", email="without@test.com"),
+        )
+
+        # Paginate with outer join
+        result = await UserCrud.paginate(
+            db_session,
+            joins=[(Post, Post.author_id == User.id)],
+            outer_join=True,
+            page=1,
+            items_per_page=10,
+        )
+
+        assert result["pagination"]["total_count"] == 2
+        assert len(result["data"]) == 2
+
+    @pytest.mark.anyio
+    async def test_multiple_joins(self, db_session: AsyncSession):
+        """Multiple joins can be applied."""
+        role = await RoleCrud.create(db_session, RoleCreate(name="author_role"))
+        user = await UserCrud.create(
+            db_session,
+            UserCreate(
+                username="multi_join",
+                email="multi@test.com",
+                role_id=role.id,
+            ),
+        )
+        await PostCrud.create(
+            db_session,
+            PostCreate(title="Multi Join Post", author_id=user.id, is_published=True),
+        )
+
+        # Join both Role and Post
+        users = await UserCrud.get_multi(
+            db_session,
+            joins=[
+                (Role, Role.id == User.role_id),
+                (Post, Post.author_id == User.id),
+            ],
+            filters=[Role.name == "author_role", Post.is_published == True],  # noqa: E712
+        )
+        assert len(users) == 1
+        assert users[0].username == "multi_join"

tests/test_fixtures.py

@@ -159,6 +159,178 @@ class TestFixtureRegistry:
         assert names == {"test_data"}
 
 
+class TestIncludeRegistry:
+    """Tests for FixtureRegistry.include_registry method."""
+
+    def test_include_empty_registry(self):
+        """Include an empty registry does nothing."""
+        main_registry = FixtureRegistry()
+        other_registry = FixtureRegistry()
+
+        @main_registry.register
+        def roles():
+            return []
+
+        main_registry.include_registry(other_registry)
+
+        assert len(main_registry.get_all()) == 1
+
+    def test_include_registry_adds_fixtures(self):
+        """Include registry adds all fixtures from the other registry."""
+        main_registry = FixtureRegistry()
+        other_registry = FixtureRegistry()
+
+        @main_registry.register
+        def roles():
+            return []
+
+        @other_registry.register
+        def users():
+            return []
+
+        @other_registry.register
+        def posts():
+            return []
+
+        main_registry.include_registry(other_registry)
+
+        names = {f.name for f in main_registry.get_all()}
+        assert names == {"roles", "users", "posts"}
+
+    def test_include_registry_preserves_dependencies(self):
+        """Include registry preserves fixture dependencies."""
+        main_registry = FixtureRegistry()
+        other_registry = FixtureRegistry()
+
+        @main_registry.register
+        def roles():
+            return []
+
+        @other_registry.register(depends_on=["roles"])
+        def users():
+            return []
+
+        main_registry.include_registry(other_registry)
+
+        fixture = main_registry.get("users")
+        assert fixture.depends_on == ["roles"]
+
+    def test_include_registry_preserves_contexts(self):
+        """Include registry preserves fixture contexts."""
+        main_registry = FixtureRegistry()
+        other_registry = FixtureRegistry()
+
+        @other_registry.register(contexts=[Context.TESTING, Context.DEVELOPMENT])
+        def test_data():
+            return []
+
+        main_registry.include_registry(other_registry)
+
+        fixture = main_registry.get("test_data")
+        assert Context.TESTING.value in fixture.contexts
+        assert Context.DEVELOPMENT.value in fixture.contexts
+
+    def test_include_registry_raises_on_duplicate(self):
+        """Include registry raises ValueError on duplicate fixture names."""
+        main_registry = FixtureRegistry()
+        other_registry = FixtureRegistry()
+
+        @main_registry.register(name="roles")
+        def roles_main():
+            return []
+
+        @other_registry.register(name="roles")
+        def roles_other():
+            return []
+
+        with pytest.raises(ValueError, match="already exists"):
+            main_registry.include_registry(other_registry)
+
+    def test_include_multiple_registries(self):
+        """Include multiple registries sequentially."""
+        main_registry = FixtureRegistry()
+        dev_registry = FixtureRegistry()
+        test_registry = FixtureRegistry()
+
+        @main_registry.register
+        def base():
+            return []
+
+        @dev_registry.register
+        def dev_data():
+            return []
+
+        @test_registry.register
+        def test_data():
+            return []
+
+        main_registry.include_registry(dev_registry)
+        main_registry.include_registry(test_registry)
+
+        names = {f.name for f in main_registry.get_all()}
+        assert names == {"base", "dev_data", "test_data"}
+
+
+class TestDefaultContexts:
+    """Tests for FixtureRegistry default contexts."""
+
+    def test_default_contexts_applied_to_fixtures(self):
+        """Default contexts are applied when no contexts specified."""
+        registry = FixtureRegistry(contexts=[Context.TESTING])
+
+        @registry.register
+        def test_data():
+            return []
+
+        fixture = registry.get("test_data")
+        assert fixture.contexts == [Context.TESTING.value]
+
+    def test_explicit_contexts_override_default(self):
+        """Explicit contexts override default contexts."""
+        registry = FixtureRegistry(contexts=[Context.TESTING])
+
+        @registry.register(contexts=[Context.PRODUCTION])
+        def prod_data():
+            return []
+
+        fixture = registry.get("prod_data")
+        assert fixture.contexts == [Context.PRODUCTION.value]
+
+    def test_no_default_contexts_uses_base(self):
+        """Without default contexts, BASE is used."""
+        registry = FixtureRegistry()
+
+        @registry.register
+        def data():
+            return []
+
+        fixture = registry.get("data")
+        assert fixture.contexts == [Context.BASE.value]
+
+    def test_multiple_default_contexts(self):
+        """Multiple default contexts are applied."""
+        registry = FixtureRegistry(contexts=[Context.DEVELOPMENT, Context.TESTING])
+
+        @registry.register
+        def dev_test_data():
+            return []
+
+        fixture = registry.get("dev_test_data")
+        assert Context.DEVELOPMENT.value in fixture.contexts
+        assert Context.TESTING.value in fixture.contexts
+
+    def test_default_contexts_with_string_values(self):
+        """Default contexts work with string values."""
+        registry = FixtureRegistry(contexts=["custom_context"])
+
+        @registry.register
+        def custom_data():
+            return []
+
+        fixture = registry.get("custom_data")
+        assert fixture.contexts == ["custom_context"]
+
+
 class TestDependencyResolution:
     """Tests for fixture dependency resolution."""
 

uv.lock

@@ -220,7 +220,7 @@ wheels = [
 
 [[package]]
 name = "fastapi-toolsets"
-version = "0.4.1"
+version = "0.5.0"
 source = { editable = "." }
 dependencies = [
     { name = "asyncpg" },