Add test case for invalid distribution format

cjolowicz · Feb 3, 2021 · 6f631b2 · 6f631b2
1 parent 3c759bd
commit 6f631b2
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/tests/unit/test_nox_poetry.py b/tests/unit/test_nox_poetry.py
@@ -38,6 +38,12 @@ def test_installroot(session: Session, distribution_format: str) -> None:
     nox_poetry.installroot(session, distribution_format=distribution_format)
 
 
+def test_installroot_invalid_format(session: Session) -> None:
+    """It raises an error."""
+    with pytest.raises(ValueError):
+        nox_poetry.installroot(session, distribution_format="egg")
+
+
 @pytest.mark.parametrize(
     "distribution_format",
     [