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-rw-r--r--tests/unit/test_monads.py23
1 files changed, 23 insertions, 0 deletions
diff --git a/tests/unit/test_monads.py b/tests/unit/test_monads.py
new file mode 100644
index 0000000..9ae07be
--- /dev/null
+++ b/tests/unit/test_monads.py
@@ -0,0 +1,23 @@
+"""Test cases for functions defined in monads.py"""
+import pytest
+
+from pymonad.maybe import Just, Nothing
+from gn3.monads import MonadicDict
+
+
+@pytest.mark.unit_test
+@pytest.mark.parametrize(
+ ("key", "value", "expected"),
+ (
+ ("foo", Just(1), Just(1)),
+ ("bar", Nothing, Nothing),
+ ),
+)
+def test_monadic_dict(key, value, expected):
+ """Test basic Monadic Dict operations"""
+ _test_dict = MonadicDict()
+ _test_dict[key] = value
+ _test_dict |= {"test_update": "random"}
+ assert _test_dict[key] == expected
+ assert _test_dict["test_update"] == Just("random")
+ assert _test_dict["non-existent"] == Nothing