1 files changed, 21 insertions, 1 deletions
diff --git a/test/coveragetest.py b/test/coveragetest.py
index 621d7ae2..93cffa86 100644
--- a/test/coveragetest.py
+++ b/test/coveragetest.py
@@ -1,6 +1,6 @@
 """Base test case class for coverage testing."""
 
-import imp, os, random, shlex, shutil, sys, tempfile, textwrap
+import glob, imp, os, random, shlex, shutil, sys, tempfile, textwrap
 
 import coverage
 from coverage.backward import sorted, StringIO      # pylint: disable=W0622
@@ -83,6 +83,9 @@ class CoverageTest(TestCase):
         sys.stdout = self.old_stdout
         sys.stderr = self.old_stderr
 
+        self.clean_modules()
+
+    def clean_modules(self):
         # Remove any new modules imported during the test run. This lets us
         # import the same source files for more than one test.
         for m in [m for m in sys.modules if m not in self.old_modules]:
@@ -155,6 +158,23 @@ class CoverageTest(TestCase):
 
         return filename
 
+    def clean_local_file_imports(self):
+        """Clean up the results of calls to `import_local_file`.
+
+        Use this if you need to `import_local_file` the same file twice in
+        one test.
+
+        """
+        # So that we can re-import files, clean them out first.
+        self.clean_modules()
+        # Also have to clean out the .pyc file, since the timestamp
+        # resolution is only one second, a changed file might not be
+        # picked up.
+        for pyc in glob.glob('*.pyc'):
+            os.remove(pyc)
+        if os.path.exists("__pycache__"):
+            shutil.rmtree("__pycache__")
+
     def import_local_file(self, modname):
         """Import a local file as a module.