Add more tests

tests/typing/selector.py

@@ -1,4 +1,4 @@
-from typing import Any
+from typing import Any, Callable, Optional, Dict
 
 from dependency_injector import providers
 
@@ -42,12 +42,34 @@ async def _async4() -> None:
     var2: Any = await provider4.async_()
 
 
-# Test 5: to check explicit typing
+# Test 5: to check selector getter and setter
+provider5 = providers.Selector(
+    lambda: "a",
+    a=providers.Factory(object),
+    b=providers.Factory(object),
+)
+selector5: Optional[Callable[..., Any]] = provider5.selector
+provider5_after_set_selector: providers.Selector[Any] = provider5.set_selector(lambda: "a")
 
-provider5 = providers.Selector[bool](lambda: "a", a=providers.Factory(bool), b=providers.Factory(int))
-var5: bool = provider5()
-attr5: providers.Provider[Any] = provider5.a
-provider5_after_set_selector: providers.Selector[bool] = provider5.set_selector(lambda: "a")
-provider5_after_set_providers: providers.Selector[bool] = provider5.set_providers(
+# Test 6: to check providers getter and setter
+provider6 = providers.Selector(
+    lambda: "a",
+    a=providers.Factory(object),
+    b=providers.Factory(object),
+)
+providers6: Dict[str, providers.Provider[Any]] = provider6.providers
+provider6_after_set_providers: providers.Selector[Any] = provider6.set_providers(c=providers.Factory(object))
+
+
+# Test 7: to check explicit typing: return type, getattr, getter/setter of providers and selectors
+provider7 = providers.Selector[bool](lambda: "a", a=providers.Factory(bool), b=providers.Factory(int))
+var7: bool = provider7()
+attr7: providers.Provider[bool] = provider7.a
+
+selector7: Optional[Callable[..., Any]] = provider7.selector
+provider7_after_set_selector: providers.Selector[bool] = provider7.set_selector(lambda: "a")
+
+providers7: Dict[str, providers.Provider[bool]] = provider7.providers
+provider7_after_set_providers: providers.Selector[bool] = provider7.set_providers(
     c=providers.Factory(str)
 )  # We don't require Provider of subclass of bool yet since Provider is invariant