From 6f631b2a0d6d69c2f9593c2c32454dd1a5a129ba Mon Sep 17 00:00:00 2001
From: Claudio Jolowicz <mail@claudiojolowicz.com>
Date: Wed, 3 Feb 2021 10:17:46 +0100
Subject: [PATCH] Add test case for invalid distribution format

---
 tests/unit/test_nox_poetry.py | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/tests/unit/test_nox_poetry.py b/tests/unit/test_nox_poetry.py
index 85a8c288..d9a86242 100644
--- 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",
     [