1 files changed, 31 insertions, 0 deletions
diff --git a/test/lib/ansible_test/_internal/cache.py b/test/lib/ansible_test/_internal/cache.py
new file mode 100644
index 0000000..3afe422
--- /dev/null
+++ b/test/lib/ansible_test/_internal/cache.py
@@ -0,0 +1,31 @@
+"""Cache for commonly shared data that is intended to be immutable."""
+from __future__ import annotations
+
+import collections.abc as c
+import typing as t
+
+from .config import (
+    CommonConfig,
+)
+
+TValue = t.TypeVar('TValue')
+
+
+class CommonCache:
+    """Common cache."""
+    def __init__(self, args: CommonConfig) -> None:
+        self.args = args
+
+    def get(self, key: str, factory: c.Callable[[], TValue]) -> TValue:
+        """Return the value from the cache identified by the given key, using the specified factory method if it is not found."""
+        if key not in self.args.cache:
+            self.args.cache[key] = factory()
+
+        return self.args.cache[key]
+
+    def get_with_args(self, key: str, factory: c.Callable[[CommonConfig], TValue]) -> TValue:
+        """Return the value from the cache identified by the given key, using the specified factory method (which accepts args) if it is not found."""
+        if key not in self.args.cache:
+            self.args.cache[key] = factory(self.args)
+
+        return self.args.cache[key]