Ensure assertions are evaluated in tests

A lot of assertions are used in Ganeti's code. Some unittests even check
whether AssertionError is raised in some cases. Explicitely ensuring
assertions are evaluated makes sure those tests don't fail and
assertions are checked.

Signed-off-by: Michael Hanselmann <hansmi@google.com>
Reviewed-by: Iustin Pop <iustin@google.com>

test/testutils.py

@@ -45,6 +45,19 @@ class GanetiTestProgram(unittest.TestProgram):
     sys.stderr.write("Running %s\n" % self.progName)
     sys.stderr.flush()
 
+    # Ensure assertions will be evaluated
+    if not __debug__:
+      raise Exception("Not running in debug mode, assertions would not be"
+                      " evaluated")
+
+    # Check again, this time with a real assertion
+    try:
+      assert False
+    except AssertionError:
+      pass
+    else:
+      raise Exception("Assertion not evaluated")
+
     return unittest.TestProgram.runTests(self)