Add version of the test as tutorial003 for parameter type enum

docs_src/parameter_types/enum/tutorial003.py

@@ -0,0 +1,19 @@
+from enum import Enum
+
+import typer
+
+
+class Interval(Enum):
+    ONE_MINUTE = "1m"
+    ONE_MONTH = "1M"
+    OTHER = "o"
+
+
+def main(
+    interval: Interval = typer.Option(Interval.OTHER, case_sensitive=True)
+):
+    print(f"Found interval: {interval.value}")
+
+
+if __name__ == "__main__":
+    typer.run(main)

tests/test_tutorial/test_parameter_types/test_enum/test_tutorial003.py

@@ -0,0 +1,17 @@
+import pytest
+import typer
+from typer.testing import CliRunner
+
+from docs_src.parameter_types.enum import tutorial003 as mod
+
+runner = CliRunner()
+
+app = typer.Typer()
+app.command()(mod.main)
+
+
+@pytest.mark.parametrize("interval", ["1M", "1m"])
+def test_case(interval):
+    result = runner.invoke(app, ["--interval", interval])
+    assert result.exit_code == 0
+    assert f"Found interval: {interval}" in result.output