bpo-45629: Add a test for the "freeze" tool. (gh-29222)

The "freeze" tool has been part of the repo for a long time. However, it hasn't had any tests in the test suite to guard against regressions. We add such a test here. This is especially important as there has been a lot of change recently related to frozen modules, with more to come.

Note that as part of the test we build Python out-of-tree and install it in a temp dir.

https://bugs.python.org/issue45629

1 files changed, 11 insertions, 0 deletions

diff --git a/Lib/test/support/__init__.py b/Lib/test/support/__init__.py
index 85fd741..fc3c99e 100644
--- a/Lib/test/support/__init__.py
+++ b/Lib/test/support/__init__.py
@@ -372,6 +372,17 @@ def requires_mac_ver(*min_version):
     return decorator
 
 
+def skip_if_buildbot(reason=None):
+    """Decorator raising SkipTest if running on a buildbot."""
+    if not reason:
+        reason = 'not suitable for buildbots'
+    if sys.platform == 'win32':
+        isbuildbot = os.environ.get('USERNAME') == 'Buildbot'
+    else:
+        isbuildbot = os.environ.get('USER') == 'buildbot'
+    return unittest.skipIf(isbuildbot, reason)
+
+
 def system_must_validate_cert(f):
     """Skip the test on TLS certificate validation failures."""
     @functools.wraps(f)