permissions: add layout tests for multiple requests

LayoutTests/http/tests/permissions/chromium/resources/test-request-multiple.js

+if (self.importScripts) {
+    importScripts('../../resources/helpers.js');
+    importScripts('testrunner-helpers.js');
+
+    if (get_current_scope() == 'ServiceWorker')
+        importScripts('../../../serviceworker/resources/worker-testharness.js');
+    else
+        importScripts('../../../resources/testharness.js');
+}
+
+var tests = [
+{
+    test: async_test('Test empty array in ' + get_current_scope() + ' scope.'),
+    fn: function(callback) {
+        navigator.permissions.request([]).then(function(result) {
+            assert_array_equals(result, []);
+            callback();
+        }, function(error) {
+            assert_unreached(error);
+            callback();
+        });
+    }
+}, {
+    test: async_test('Test single permission with update in ' + get_current_scope() + ' scope.'),
+    fn: function(callback) {
+        navigator.permissions.request([{name:'geolocation'}]).then(function(result) {
+            assert_equals(result.length, 1);
+            assert_true(result[0] instanceof PermissionStatus);
+            assert_equals(result[0].state, 'denied');
+            return setPermission('geolocation', 'granted', location.origin, location.origin);
+        }).then(function() {
+            return navigator.permissions.request([{name:'geolocation'}]);
+        }).then(function(result) {
+            assert_equals(result.length, 1);
+            assert_true(result[0] instanceof PermissionStatus);
+            assert_equals(result[0].state, 'granted');
+            callback();

[mlamouri (slow - plz ping), 2015/09/23 14:24:28]

Could you call navigator.permissions.revoke():
  navigator.permissions.revoke({name:'geolocation'}).then(callback);

[Lalit Maganti, 2015/09/24 09:26:43]

Done.

+        }).catch(function(error) {
+            assert_unreached(error);
+            callback();
+        });
+    }
+}, {
+    test: async_test('Test two permissions with update in ' + get_current_scope() + ' scope.'),
+    fn: function(callback) {
+        navigator.permissions.request([{name:'geolocation'}, {name:'notifications'}]).then(function(result) {
+            assert_equals(result.length, 2);
+            for (var i = 0; i < result.length; i++) {
+                assert_true(result[i] instanceof PermissionStatus);
+                assert_equals(result[i].state, 'denied');
+            }
+            return setPermission('geolocation', 'granted', location.origin, location.origin);

[mlamouri (slow - plz ping), 2015/09/23 14:24:28]

Could you set notifications to 'prompt'?

[Lalit Maganti, 2015/09/24 09:26:43]

Done.

+        }).then(function() {
+            return navigator.permissions.request([{name:'geolocation'}, {name:'notifications'}]);
+        }).then(function(result) {
+            assert_equals(result.length, 2);
+            for (var i = 0; i < result.length; i++)
+                assert_true(result[i] instanceof PermissionStatus);
+            assert_equals(result[0].state, 'granted');
+            assert_equals(result[1].state, 'denied');
+            callback();

[mlamouri (slow - plz ping), 2015/09/23 14:24:28]

Could you add another test with geolocation/notifications being inverted?

[Lalit Maganti, 2015/09/24 09:26:43]

Done.

+        }).catch(function(error) {
+            assert_unreached(error);
+            callback();
+        });
+    }
+}, {
+    test: async_test('Test duplicate permissions with update in ' + get_current_scope() + ' scope.'),
+    fn: function(callback) {
+        navigator.permissions.request([{name:'geolocation'}, {name:'geolocation'}]).then(function(result) {
+            assert_equals(result.length, 2);
+            for (var i = 0; i < result.length; i++) {
+                assert_true(result[i] instanceof PermissionStatus);
+                assert_equals(result[i].state, 'denied');
+            }
+            return setPermission('geolocation', 'granted', location.origin, location.origin);
+        }).then(function() {
+            return navigator.permissions.request([{name:'geolocation'}, {name:'geolocation'}]);
+        }).then(function(result) {
+            assert_equals(result.length, 2);
+            for (var i = 0; i < result.length; i++) {
+                assert_true(result[i] instanceof PermissionStatus);
+                assert_equals(result[i].state, 'granted');
+            }
+            callback();
+        }).catch(function(error) {
+            assert_unreached(error);
+            callback();
+        });
+    }
+}];
+
+function runTest(i) {

[Lalit Maganti, 2015/09/17 20:01:05]

Should probably factor this out into the helper file. It's come up 3 times now
and it's become quite complex.

[Lalit Maganti, 2015/09/24 09:26:43]

Maybe not since reset was removed 

+  tests[i].test.step(function() {
+      tests[i].fn(function() {
+          tests[i].test.done();
+          resetPermissions().then(function() {
+              if (i + 1 < tests.length) {
+                  runTest(i + 1);
+              } else {
+                  done();
+              }
+          }).catch(function(error) {
+              assert_unreached(error);
+          });
+      });
+  });
+}
+runTest(0);