Hooks

- Added a new on-launch-misbehave2 script that emits unexpected JSON.

test/hooks.on-launch.t

@@ -83,6 +83,20 @@ class TestHooksOnLaunch(TestCase):
         logs = self.t.hooks[hookname].get_logs()
         self.assertEqual(self.t.hooks[hookname].get_logs()["output"]["msgs"][0], "FEEDBACK")
 
+    def test_onlaunch_builtin_misbehave2(self):
+        """on-launch-misbehave2 - Hook emits unexpected JSON."""
+        hookname = 'on-launch-misbehave2'
+        self.t.hooks.add_default(hookname, log=True)
+
+        # Failing hook should prevent processing.
+        code, out, err = self.t.runError(("version",))
+        self.assertIn("Hook Error: Expected 0 JSON task(s), found 1", err)
+        self.t.hooks[hookname].assertTriggered()
+        self.t.hooks[hookname].assertTriggeredCount(1)
+        self.t.hooks[hookname].assertExitcode(0)
+        logs = self.t.hooks[hookname].get_logs()
+        self.assertEqual(self.t.hooks[hookname].get_logs()["output"]["msgs"][0], "FEEDBACK")
+
 if __name__ == "__main__":
     from simpletap import TAPTestRunner
     unittest.main(testRunner=TAPTestRunner())