functional test for the "simple test fork bomb"

Signed-off-by: Cleber Rosa <crosa@redhat.com>

selftests/functional/test_loader.py

@@ -101,6 +101,34 @@ def hello():
 """
 
 
+AVOCADO_SIMPLE_PYTHON_LIKE_MULTIPLE_FILES = """#!/usr/bin/env python
+# A simple test (executable bit set when saved to file) that looks like
+# an Avocado instrumented test, with base class on separate file
+from avocado import Test
+from avocado import main
+from test2 import *
+
+class BasicTestSuite(SuperTest):
+
+    def test1(self):
+        self.xxx()
+        self.assertTrue(True)
+
+if __name__ == '__main__':
+    main()
+"""
+
+AVOCADO_SIMPLE_PYTHON_LIKE_MULTIPLE_FILES_LIB = """
+#!/usr/bin/python
+
+from avocado import Test
+
+class SuperTest(Test):
+    def xxx(self):
+        print "ahoj"
+"""
+
+
 class LoaderTestFunctional(unittest.TestCase):
 
     def setUp(self):
@@ -161,6 +189,27 @@ def test_load_not_a_test(self):
     def test_load_not_a_test_not_exec(self):
         self._test('notatest.py', NOT_A_TEST, 'NOT_A_TEST')
 
+    def test_runner_simple_python_like_multiple_files(self):
+        mylib = script.TemporaryScript(
+            'test2.py',
+            AVOCADO_SIMPLE_PYTHON_LIKE_MULTIPLE_FILES_LIB,
+            'avocado_simpletest_functional',
+            0644)
+        mylib.save()
+        mytest = script.Script(
+            os.path.join(os.path.dirname(mylib.path), 'test.py'),
+            AVOCADO_SIMPLE_PYTHON_LIKE_MULTIPLE_FILES)
+        os.chdir(basedir)
+        mytest.save()
+        cmd_line = "./scripts/avocado list -V %s" % mytest
+        result = process.run(cmd_line)
+        self.assertIn('SIMPLE: 1', result.stdout)
+        # job should be able to finish under 5 seconds. If this fails, it's
+        # possible that we hit the "simple test fork bomb" bug
+        cmd_line = ("./scripts/avocado run --sysinfo=off --job-results-dir %s "
+                    "--job-timeout=5s %s" % (self.tmpdir, mytest))
+        process.run(cmd_line)
+
     def tearDown(self):
         shutil.rmtree(self.tmpdir)