Bug 20149: add public key pinning test

TBBTestSuite/TestSuite/BrowserBundleTests.pm

@@ -438,6 +438,13 @@ our @tests = (
         descr           => 'Check if download of PDF is working (#19402)',
         use_net         => 1,
     },
+    {
+        name            => 'pinning_now',
+        type            => 'marionette',
+        descr           => 'Check if static public key pinning is working (#20149)',
+        marionette_test => 'pinning',
+        use_net         => 1,
+    },
 );
 
 sub toggle_https_everywhere {

marionette/tor_browser_tests/test_pinning.py

+from marionette_driver import By, Actions
+from marionette_driver.errors import MarionetteException, JavascriptException
+
+from marionette import MarionetteTestCase
+
+import testsuite
+
+
+class Test(MarionetteTestCase):
+
+    def setUp(self):
+        MarionetteTestCase.setUp(self)
+
+        ts = testsuite.TestSuite()
+        self.ts = ts
+
+        self.URL = 'https://pinning-test.badssl.com/'
+
+
+    def test_pinning(self):
+        m = self.marionette
+
+        with m.using_context('content'):
+
+            res = False
+            try:
+                m.navigate(self.URL)
+            except Exception:
+                res = True
+
+            self.assertTrue(res, msg="Page could be loaded")
+
+            if res:
+                errorCode = m.find_element('id', 'errorCode')
+                self.assertEqual(errorCode.get_attribute('title'),
+                        'MOZILLA_PKIX_ERROR_KEY_PINNING_FAILURE',
+                        msg='Wrong error code')
+