autopkgtest: Run gcc-n's testuite, if it has one

britney2/policies/autopkgtest.py

@@ -311,6 +311,10 @@ class AutopkgtestPolicy(BasePolicy):
         # gcc during the test, and libreoffice as an example for a libgcc user.
         if src.startswith('gcc-'):
             if re.match('gcc-\d$', src):
+                # add gcc's own tests, if it has any
+                srcinfo = self.britney.sources['unstable'][src]
+                if 'autopkgtest' in srcinfo.testsuite:
+                    tests.append((src, ver))
                 for test in ['binutils', 'fglrx-installer', 'libreoffice', 'linux']:
                     try:
                         tests.append((test, self.britney.sources['testing'][test][VERSION]))

tests/test_autopkgtest.py

@@ -2013,6 +2013,21 @@ class T(TestBase):
                                'linux': {'amd64': 'RUNNING-ALWAYSFAIL', 'i386': 'RUNNING-ALWAYSFAIL'}})})[1]
         self.assertNotIn('notme 1', exc['gcc-5']['policy_info']['autopkgtest'])
 
+    def test_gcc_hastest(self):
+        '''gcc triggers itself when it has a testsuite'''
+
+        self.data.add('gcc-7', False, {}, testsuite='autopkgtest')
+
+        # gcc-7 has passed before on i386 only, therefore ALWAYSFAIL on amd64
+        self.swift.set_results({'autopkgtest-series': {
+            'series/i386/g/gcc-7/20150101_100000@': (0, 'gcc-7 1', tr('passedbefore/1')),
+        }})
+
+        exc = self.do_test(
+            [('gcc-7', {'Source': 'gcc-7', 'Version': '2'}, 'autopkgtest')],
+            {'gcc-7': (False, {'gcc-7': {'amd64': 'RUNNING-ALWAYSFAIL', 'i386': 'RUNNING'}})})[1]
+        self.assertIn('gcc-7', exc['gcc-7']['policy_info']['autopkgtest'])
+
     def test_alternative_gcc(self):
         '''alternative gcc does not trigger anything'''