Merge pull request #8481 from uranusjr/warning-fixes

Expect deprecation warning for build_dir in tests

Author: pradyunsg

tests/functional/test_install_cleanup.py

@@ -41,8 +41,14 @@ def test_cleanup_prevented_upon_build_dir_exception(
         '--build', build,
         expect_error=(not use_new_resolver),
         expect_temp=(not use_new_resolver),
+        expect_stderr=True,
     )
 
+    assert (
+        "The -b/--build/--build-dir/--build-directory "
+        "option is deprecated."
+    ) in result.stderr
+
     if not use_new_resolver:
         assert result.returncode == PREVIOUS_BUILD_DIR_ERROR, str(result)
         assert "pip can't proceed" in result.stderr, str(result)

tests/functional/test_wheel.py

@@ -252,8 +252,14 @@ def test_pip_wheel_fail_cause_of_previous_build_dir(
         'simple==3.0',
         expect_error=(not use_new_resolver),
         expect_temp=(not use_new_resolver),
+        expect_stderr=True,
     )
 
+    assert (
+        "The -b/--build/--build-dir/--build-directory "
+        "option is deprecated."
+    ) in result.stderr
+
     # Then I see that the error code is the right one
     if not use_new_resolver:
         assert result.returncode == PREVIOUS_BUILD_DIR_ERROR, result