Fract: enable tests

Change-Id: I00650503f15f2dcd45b07e3c529965336e8391e6
Reviewed-on: https://gerrit.libreoffice.org/12080
Reviewed-by: David Tardon <dtardon@redhat.com>
Tested-by: David Tardon <dtardon@redhat.com>

tools/CppunitTest_tools_test.mk

@@ -15,6 +15,7 @@ $(eval $(call gb_CppunitTest_use_external,tools_test,boost_headers))
 
 $(eval $(call gb_CppunitTest_add_exception_objects,tools_test, \
     tools/qa/cppunit/test_bigint \
+    tools/qa/cppunit/test_fract \
     tools/qa/cppunit/test_inetmime \
     tools/qa/cppunit/test_pathutils \
     tools/qa/cppunit/test_reversemap \

tools/qa/cppunit/test_fract.cxx

@@ -31,13 +31,6 @@ namespace tools
 class FractionTest : public CppUnit::TestFixture
 {
 public:
-    void setUp()
-    {
-    }
-
-    void tearDown()
-    {
-    }
 
     void testFraction()
     {
@@ -106,6 +99,4 @@ public:
 CPPUNIT_TEST_SUITE_REGISTRATION(FractionTest);
 } // namespace tools
 
-CPPUNIT_PLUGIN_IMPLEMENT();
-
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */