add: arg tests (#1)

test/test_args.py

@@ -1,8 +1,37 @@
 """Test arg parsing."""
 
+# std
+from pathlib import Path
+from shlex import split
+
+# lib
+import pytest
+
+# pkg
 from cosmofy.args import Args
 
 
 def test_empty() -> None:
     """Empty args."""
     assert Args.parse([]) == Args()
+
+
+def test_basic() -> None:
+    """Basic flags."""
+    assert Args.parse(
+        split("--clone --args '-m foo' --output bar/baz src/repo")
+    ) == Args(clone=True, args="-m foo", output=Path("bar/baz"), add=["src/repo"])
+
+
+def test_disable_cache() -> None:
+    """Disable cache."""
+    assert Args.parse(split("--cache 0")) == Args(cache=None)
+    assert Args.parse(split("--cache false")) == Args(cache=None)
+    assert Args.parse(split("--cache False")) == Args(cache=None)
+    assert Args.parse(split("--cache FALSE")) == Args(cache=None)
+
+
+def test_bad_arg() -> None:
+    """Bad arg."""
+    with pytest.raises(ValueError):
+        Args.parse(["--unknown"])