1 files changed, 46 insertions, 0 deletions
diff --git a/test/libcxx/util.py b/test/libcxx/util.py
new file mode 100644
index 0000000000000..28f2619d69cb3
--- /dev/null
+++ b/test/libcxx/util.py
@@ -0,0 +1,46 @@
+from contextlib import contextmanager
+import os
+import tempfile
+
+
+def cleanFile(filename):
+    try:
+        os.remove(filename)
+    except OSError:
+        pass
+
+
+@contextmanager
+def guardedTempFilename(suffix='', prefix='', dir=None):
+    # Creates and yeilds a temporary filename within a with statement. The file
+    # is removed upon scope exit.
+    handle, name = tempfile.mkstemp(suffix=suffix, prefix=prefix, dir=dir)
+    os.close(handle)
+    yield name
+    cleanFile(name)
+
+
+@contextmanager
+def guardedFilename(name):
+    # yeilds a filename within a with statement. The file is removed upon scope
+    # exit.
+    yield name
+    cleanFile(name)
+
+
+@contextmanager
+def nullContext(value):
+    # yeilds a variable within a with statement. No action is taken upon scope
+    # exit.
+    yield value
+
+
+def makeReport(cmd, out, err, rc):
+    report = "Command: %s\n" % cmd
+    report += "Exit Code: %d\n" % rc
+    if out:
+        report += "Standard Output:\n--\n%s--\n" % out
+    if err:
+        report += "Standard Error:\n--\n%s--\n" % err
+    report += '\n'
+    return report