Fix tests for M80

As of M80(chrome version >= 80), chrome removed the
native htmlImports support, tho we have the polyfill
from webcomponents, the loading of html changed from
sync to async which cause a lot test to fail in M80.

The fix is introducing a util method `readyToTest` which
wait until htmlImports finished before running any tests.

Updated some tests to have only one top suite per test so
we only need one `readyToTest` and also multiple `readyToTest`
actually affect tests' stub functionality.

Tested locally with `npm run test` on all passed tests and also
with manual failure to make sure the updated tests can still
catch any errors if have.

Bug: Issue 12294
Change-Id: Ib0c464f8ff9f36a401e6c3b249e6bb6d68ee6e2f

polygerrit-ui/app/behaviors/async-foreach-behavior/async-foreach-behavior_test.html

@@ -23,11 +23,13 @@ limitations under the License.
 
 <script src="/bower_components/webcomponentsjs/webcomponents-lite.js"></script>
 <script src="/bower_components/web-component-tester/browser.js"></script>
+<script src="../../test/test-pre-setup.js"></script>
 <link rel="import" href="../../test/common-test-setup.html"/>
 <link rel="import" href="async-foreach-behavior.html">
 
 <script>
-  suite('async-foreach-behavior tests', () => {
+  suite('async-foreach-behavior tests', async () => {
+    await readyToTest();
     test('loops over each item', () => {
       const fn = sinon.stub().returns(Promise.resolve());
       return Gerrit.AsyncForeachBehavior.asyncForeach([1, 2, 3], fn)

polygerrit-ui/app/behaviors/base-url-behavior/base-url-behavior_test.html

@@ -23,6 +23,7 @@ limitations under the License.
 
 <script src="/bower_components/webcomponentsjs/webcomponents-lite.js"></script>
 <script src="/bower_components/web-component-tester/browser.js"></script>
+<script src="../../test/test-pre-setup.js"></script>
 <link rel="import" href="../../test/common-test-setup.html"/>
 <script>
   /** @type {string} */
@@ -45,7 +46,8 @@ limitations under the License.
 </test-fixture>
 
 <script>
-  suite('base-url-behavior tests', () => {
+  suite('base-url-behavior tests', async () => {
+    await readyToTest();
     let element;
     // eslint-disable-next-line no-unused-vars
     let overlay;

polygerrit-ui/app/behaviors/docs-url-behavior/docs-url-behavior_test.html

@@ -17,6 +17,7 @@ limitations under the License.
 <!-- Polymer included for the html import polyfill. -->
 <script src="/bower_components/webcomponentsjs/webcomponents-lite.js"></script>
 <script src="/bower_components/web-component-tester/browser.js"></script>
+<script src="../../test/test-pre-setup.js"></script>
 <link rel="import" href="../../test/common-test-setup.html"/>
 <title>docs-url-behavior</title>
 
@@ -33,7 +34,8 @@ limitations under the License.
 </test-fixture>
 
 <script>
-  suite('docs-url-behavior tests', () => {
+  suite('docs-url-behavior tests', async () => {
+    await readyToTest();
     let element;
 
     suiteSetup(() => {

polygerrit-ui/app/behaviors/dom-util-behavior/dom-util-behavior_test.html

@@ -23,6 +23,7 @@ limitations under the License.
 
 <script src="/bower_components/webcomponentsjs/webcomponents-lite.js"></script>
 <script src="/bower_components/web-component-tester/browser.js"></script>
+<script src="../../test/test-pre-setup.js"></script>
 <link rel="import" href="../../test/common-test-setup.html"/>
 <link rel="import" href="dom-util-behavior.html">
 
@@ -40,7 +41,8 @@ limitations under the License.
 </test-fixture>
 
 <script>
-  suite('dom-util-behavior tests', () => {
+  suite('dom-util-behavior tests', async () => {
+    await readyToTest();
     let element;
     let divs;
 

polygerrit-ui/app/behaviors/gr-access-behavior/gr-access-behavior_test.html

@@ -23,6 +23,7 @@ limitations under the License.
 
 <script src="/bower_components/webcomponentsjs/webcomponents-lite.js"></script>
 <script src="/bower_components/web-component-tester/browser.js"></script>
+<script src="../../test/test-pre-setup.js"></script>
 <link rel="import" href="../../test/common-test-setup.html"/>
 <link rel="import" href="gr-access-behavior.html">
 
@@ -33,7 +34,8 @@ limitations under the License.
 </test-fixture>
 
 <script>
-  suite('gr-access-behavior tests', () => {
+  suite('gr-access-behavior tests', async () => {
+    await readyToTest();
     let element;
 
     suiteSetup(() => {

polygerrit-ui/app/behaviors/gr-admin-nav-behavior/gr-admin-nav-behavior_test.html

@@ -23,6 +23,7 @@ limitations under the License.
 
 <script src="/bower_components/webcomponentsjs/webcomponents-lite.js"></script>
 <script src="/bower_components/web-component-tester/browser.js"></script>
+<script src="../../test/test-pre-setup.js"></script>
 <link rel="import" href="../../test/common-test-setup.html"/>
 <link rel="import" href="gr-admin-nav-behavior.html">
 
@@ -33,7 +34,8 @@ limitations under the License.
 </test-fixture>
 
 <script>
-  suite('gr-admin-nav-behavior tests', () => {
+  suite('gr-admin-nav-behavior tests', async () => {
+    await readyToTest();
     let element;
     let sandbox;
     let capabilityStub;

polygerrit-ui/app/behaviors/gr-change-table-behavior/gr-change-table-behavior_test.html

@@ -23,6 +23,7 @@ limitations under the License.
 
 <script src="/bower_components/webcomponentsjs/webcomponents-lite.js"></script>
 <script src="/bower_components/web-component-tester/browser.js"></script>
+<script src="../../test/test-pre-setup.js"></script>
 <link rel="import" href="../../test/common-test-setup.html"/>
 <link rel="import" href="gr-change-table-behavior.html">
 
@@ -41,7 +42,8 @@ limitations under the License.
 </test-fixture>
 
 <script>
-  suite('gr-change-table-behavior tests', () => {
+  suite('gr-change-table-behavior tests', async () => {
+    await readyToTest();
     let element;
     // eslint-disable-next-line no-unused-vars
     let overlay;

polygerrit-ui/app/behaviors/gr-display-name-behavior/gr-display-name-behavior_test.html

@@ -23,6 +23,7 @@ limitations under the License.
 
 <script src="/bower_components/webcomponentsjs/webcomponents-lite.js"></script>
 <script src="/bower_components/web-component-tester/browser.js"></script>
+<script src="../../test/test-pre-setup.js"></script>
 <link rel="import" href="../../test/common-test-setup.html"/>
 <link rel="import" href="gr-display-name-behavior.html">
 
@@ -33,7 +34,8 @@ limitations under the License.
 </test-fixture>
 
 <script>
-  suite('gr-display-name-behavior tests', () => {
+  suite('gr-display-name-behavior tests', async () => {
+    await readyToTest();
     let element;
     // eslint-disable-next-line no-unused-vars
     const config = {

polygerrit-ui/app/behaviors/gr-list-view-behavior/gr-list-view-behavior_test.html

@@ -23,6 +23,7 @@ limitations under the License.
 
 <script src="/bower_components/webcomponentsjs/webcomponents-lite.js"></script>
 <script src="/bower_components/web-component-tester/browser.js"></script>
+<script src="../../test/test-pre-setup.js"></script>
 <link rel="import" href="../../test/common-test-setup.html"/>
 <link rel="import" href="gr-list-view-behavior.html">
 
@@ -33,7 +34,8 @@ limitations under the License.
 </test-fixture>
 
 <script>
-  suite('gr-list-view-behavior tests', () => {
+  suite('gr-list-view-behavior tests', async () => {
+    await readyToTest();
     let element;
     // eslint-disable-next-line no-unused-vars
     let overlay;

polygerrit-ui/app/behaviors/gr-patch-set-behavior/gr-patch-set-behavior_test.html

@@ -17,6 +17,7 @@ limitations under the License.
 <!-- Polymer included for the html import polyfill. -->
 <script src="/bower_components/webcomponentsjs/webcomponents-lite.js"></script>
 <script src="/bower_components/web-component-tester/browser.js"></script>
+<script src="../../test/test-pre-setup.js"></script>
 <link rel="import" href="../../test/common-test-setup.html"/>
 <title>gr-patch-set-behavior</title>
 
@@ -25,7 +26,8 @@ limitations under the License.
 <link rel="import" href="gr-patch-set-behavior.html">
 
 <script>
-  suite('gr-patch-set-behavior tests', () => {
+  suite('gr-patch-set-behavior tests', async () => {
+    await readyToTest();
     test('getRevisionByPatchNum', () => {
       const get = Gerrit.PatchSetBehavior.getRevisionByPatchNum;
       const revisions = [

polygerrit-ui/app/behaviors/gr-path-list-behavior/gr-path-list-behavior_test.html

@@ -17,6 +17,7 @@ limitations under the License.
 <!-- Polymer included for the html import polyfill. -->
 <script src="/bower_components/webcomponentsjs/webcomponents-lite.js"></script>
 <script src="/bower_components/web-component-tester/browser.js"></script>
+<script src="../../test/test-pre-setup.js"></script>
 <link rel="import" href="../../test/common-test-setup.html"/>
 <title>gr-path-list-behavior</title>
 
@@ -25,7 +26,8 @@ limitations under the License.
 <link rel="import" href="gr-path-list-behavior.html">
 
 <script>
-  suite('gr-path-list-behavior tests', () => {
+  suite('gr-path-list-behavior tests', async () => {
+    await readyToTest();
     test('special sort', () => {
       const sort = Gerrit.PathListBehavior.specialFilePathCompare;
       const testFiles = [

polygerrit-ui/app/behaviors/gr-tooltip-behavior/gr-tooltip-behavior_test.html

@@ -22,6 +22,7 @@ limitations under the License.
 
 <script src="/bower_components/webcomponentsjs/webcomponents-lite.js"></script>
 <script src="/bower_components/web-component-tester/browser.js"></script>
+<script src="../../test/test-pre-setup.js"></script>
 <link rel="import" href="../../test/common-test-setup.html"/>
 <link rel="import" href="gr-tooltip-behavior.html">
 
@@ -34,7 +35,8 @@ limitations under the License.
 </test-fixture>
 
 <script>
-  suite('gr-tooltip-behavior tests', () => {
+  suite('gr-tooltip-behavior tests', async () => {
+    await readyToTest();
     let element;
     let sandbox;
 

polygerrit-ui/app/behaviors/gr-url-encoding-behavior/gr-url-encoding-behavior_test.html

@@ -22,6 +22,7 @@ limitations under the License.
 
 <script src="/bower_components/webcomponentsjs/webcomponents-lite.js"></script>
 <script src="/bower_components/web-component-tester/browser.js"></script>
+<script src="../../test/test-pre-setup.js"></script>
 <link rel="import" href="../../test/common-test-setup.html"/>
 <link rel="import" href="gr-url-encoding-behavior.html">
 
@@ -34,7 +35,8 @@ limitations under the License.
 </test-fixture>
 
 <script>
-  suite('gr-url-encoding-behavior tests', () => {
+  suite('gr-url-encoding-behavior tests', async () => {
+    await readyToTest();
     let element;
     let sandbox;
 

polygerrit-ui/app/behaviors/keyboard-shortcut-behavior/keyboard-shortcut-behavior_test.html

@@ -23,6 +23,7 @@ limitations under the License.
 
 <script src="/bower_components/webcomponentsjs/webcomponents-lite.js"></script>
 <script src="/bower_components/web-component-tester/browser.js"></script>
+<script src="../../test/test-pre-setup.js"></script>
 <link rel="import" href="../../test/common-test-setup.html"/>
 <link rel="import" href="keyboard-shortcut-behavior.html">
 
@@ -41,7 +42,8 @@ limitations under the License.
 </test-fixture>
 
 <script>
-  suite('keyboard-shortcut-behavior tests', () => {
+  suite('keyboard-shortcut-behavior tests', async () => {
+    await readyToTest();
     const kb = window.Gerrit.KeyboardShortcutBinder;
 
     let element;

polygerrit-ui/app/behaviors/rest-client-behavior/rest-client-behavior_test.html

@@ -23,6 +23,7 @@ limitations under the License.
 
 <script src="/bower_components/webcomponentsjs/webcomponents-lite.js"></script>
 <script src="/bower_components/web-component-tester/browser.js"></script>
+<script src="../../test/test-pre-setup.js"></script>
 <link rel="import" href="../../test/common-test-setup.html"/>
 <script>
   /** @type {string} */
@@ -47,7 +48,8 @@ limitations under the License.
 </test-fixture>
 
 <script>
-  suite('rest-client-behavior tests', () => {
+  suite('rest-client-behavior tests', async () => {
+    await readyToTest();
     let element;
     // eslint-disable-next-line no-unused-vars
     let overlay;

polygerrit-ui/app/behaviors/safe-types-behavior/safe-types-behavior_test.html

@@ -22,6 +22,7 @@ limitations under the License.
 
 <script src="/bower_components/webcomponentsjs/webcomponents-lite.js"></script>
 <script src="/bower_components/web-component-tester/browser.js"></script>
+<script src="../../test/test-pre-setup.js"></script>
 <link rel="import" href="../../test/common-test-setup.html"/>
 <link rel="import" href="safe-types-behavior.html">
 
@@ -34,7 +35,8 @@ limitations under the License.
 </test-fixture>
 
 <script>
-  suite('gr-tooltip-behavior tests', () => {
+  suite('gr-tooltip-behavior tests', async () => {
+    await readyToTest();
     let element;
     let sandbox;