[Cppunit-devel] A TestCaller that catch an expected exception

[Baptiste L. <bl...@cl...>]

I plan to add a test caller that catch an expected exception type. There is
a patch on sourceforge that does that but it's doing it using RTTI.

Here is the meaningful part of the patch:

+  /// dummy exception for TestCaller templates when no exception is
expected
+  class NO_EXCEPTION {
+  };

+  template <class Fixture, class ExpectedException = NO_EXCEPTION>
     class TestCaller : public TestCase


[...]
       protected:
         void runTest ()


-          (m_fixture.get ()->*m_test)();
+          try {
+            (m_fixture.get ()->*m_test)();
+          }
+          catch(ExpectedException e) {
+            return;
+          }
+          catch(...) {
+     throw;
+          }
+

// ==> the RTTI part:
+          if (typeid(ExpectedException) != typeid(NO_EXCEPTION)) {
+    string s = "Expected exception ";
+    s += typeid(ExpectedException).name();
+    s += " from ";
+    s += getName();
+    s += " but got none";
+    throw Exception(s);
+   }
         }

    What's I'm planning is basically the same thing, though the
"NO_EXCEPTION" detection will be done using traits specialization to ensure
portabilty.

    I'll also add the matching macro to HelperMacros.h:

CPPUNIT_TEST_EXCEPTION( testMethod, expectedExceptionType )

    Anyone see something wrong ?

    Baptiste.

---
Baptiste Lepilleur <gai...@fr...>   http://gaiacrtn.free.fr/index.html
Author of The Text Reformatter, a tool for fanfiction readers and writers.
Language: English, French (Well, I'm French).