headless: Implement DevTools events

headless/lib/browser/client_api_generator_unittest.py

Index: headless/lib/browser/client_api_generator_unittest.py
diff --git a/headless/lib/browser/client_api_generator_unittest.py b/headless/lib/browser/client_api_generator_unittest.py
index f3609d490f297a13364f6c8b00271b459f712c69..5c298bdd7046f662544333af268745425c84b122 100644
--- a/headless/lib/browser/client_api_generator_unittest.py
+++ b/headless/lib/browser/client_api_generator_unittest.py
@@ -300,6 +300,55 @@ class ClientApiGeneratorTest(unittest.TestCase):
     types = json_api['domains'][0]['types']
     self.assertListEqual(types, expected_types)
 
+  def test_SynthesizeEventTypes(self):
+    json_api = {
+      'domains': [
+        {
+          'domain': 'domain',
+          'events': [
+            {
+              'name': 'TestEvent',
+              'parameters': [
+                  {'name': 'p1', 'type': 'number'},
+                  {'name': 'p2', 'type': 'integer'},
+                  {'name': 'p3', 'type': 'boolean'},
+                  {'name': 'p4', 'type': 'string'},
+                  {'name': 'p5', 'type': 'any'},
+                  {'name': 'p6', 'type': 'object', '$ref': 'TestType'},
+              ]
+            },
+            {
+              'name': 'TestEventWithNoParams',
+            }
+          ]
+        }
+      ]
+    }
+    expected_types = [
+      {
+        'type': 'object',
+        'id': 'TestEventParams',
+        'description': 'Parameters for the TestEvent event.',
+        'properties': [
+          {'type': 'number', 'name': 'p1'},
+          {'type': 'integer', 'name': 'p2'},
+          {'type': 'boolean', 'name': 'p3'},
+          {'type': 'string', 'name': 'p4'},
+          {'type': 'any', 'name': 'p5'},
+          {'type': 'object', 'name': 'p6', '$ref': 'TestType'}
+        ]
+      },
+      {
+        'type': 'object',
+        'id': 'TestEventWithNoParamsParams',
+        'description': 'Parameters for the TestEventWithNoParams event.',
+        'properties': [],
+      }
+    ]
+    client_api_generator.SynthesizeEventTypes(json_api)
+    types = json_api['domains'][0]['types']
+    self.assertListEqual(types, expected_types)
+
   def test_Generate(self):
     json_api = {
       'domains': [