Add tests for new Credential private api class

tests/_temporary_private_credential_api_test.py

@@ -0,0 +1,55 @@
+"""Tests for the temporarily hosted private credential structure."""
+
+import pytest
+
+from awx_plugins.interfaces._temporary_private_credential_api import (
+    Credential,
+    GenericOptionalPrimitiveType,
+)
+
+
+def test_credential_instantiation() -> None:
+    """Check that credential type can be instantiated."""
+    assert Credential()
+
+
+@pytest.mark.parametrize(
+    ('inputs', 'key', 'expected'),
+    (
+        pytest.param({'foo': 'bar'}, 'foo', 'bar', id='key-present'),
+        pytest.param({'foo1': 'bar1'}, 'baz', None, id='key-missing'),
+    ),
+)
+def test_credential_get_input(
+        inputs: dict[str, GenericOptionalPrimitiveType],
+        key: str,
+        expected: str,
+) -> None:
+    """Check that get_input operates on the dict we provided."""
+    assert Credential(inputs=inputs).get_input(key) is expected
+
+
+@pytest.mark.parametrize(
+    ('inputs', 'key', 'expected'),
+    (
+        pytest.param(
+            {'foo2': 'bar2'},
+            'foo2',
+            True,  # noqa: WPS425
+            id='key-present',
+        ),
+        pytest.param(
+            {'foo3': 'bar3'},
+            'baz',
+            False,  # noqa: WPS425
+            id='key-missing',
+        ),
+    ),
+)
+def test_credential_has_input(
+        inputs: dict[str, GenericOptionalPrimitiveType],
+        key: str,
+        expected: bool,
+) -> None:
+    """Check that has_input behaves like dict in operator."""
+    assert Credential(inputs=inputs).has_input(key) is expected