Switch UI tests from phantomjs to chrome headless (#14421)

* Make sure xss entries is always an array.

* Update expected test files and submodule.

* Regenerate broken omnifixture dump.

* poc conversion to chrome headless for UI tests, single test works locally

* Get single test to pass on travis & local w/ headless chrome.

* Remove old diff viewer generation, and get output to look the same as before when there is a failure.

* Add global timeout & get ViewDataTableTest to pass.

* Convert BarGraph_spec.js.

* Convert EmptySite_spec.

* Update EvolutionGraph spec for chrome headless.

* Convert GoalsTable test & find/replace for common changes.

* Convert MeasurableManager.

* Another find & replace.

* Get Menus/OptOutForm to pass w/ chrome headless

* Convert PeriodSelector, PieGraph & PivotByDimension UI tests.

* undo unrelated debugging change

* Convert QuickAccess UI tests

* Converts ActionsDataTable UI tests

* reset viewport after each testsuite

* Converts RowEvolution UI tests

* Converts Theme UI tests

* Converts SiteSelector UI tests

* Converts CustomVariables UI test

* Converts DBStats UI test

* Ignore empty responses when calling api/controller

* Converts Dashboard UI tests

* Converts Live UI tests

* Converts SimpleUI tests

* Converts Installation UI tests

* Converts ImageGraph UI tests

* Converts Login UI tests

* Converts Marketplace UI tests

* Converts Insights UI tests

* Converts ReportExporting UI tests

* Converts UIIntegration tests

* Updates ViewDataTable UI tests

* Converts CoreUpdater UI tests

* Converts UsersManager UI tests

* Converts Morpheus UI tests

* Converts MultiSites UI tests

* Fix testEnvironment.callApi handling of array parameters

* Converts Overlay UI tests

* Converts PrivacyManager UI tests

* Converts ScheduledReports UI tests

* Converts SegmentEditor UI tests

* compare pixel difference in images

* Converts PeriodSelector UI tests

* allow a pixel difference

* Converts SingleMetricView UI tests

* Converts SitesManager UI tests

* Converts Transitions UI tests

* Converts MeasurableManager UI tests

* Move Mouse out of screen after each test suite

* Converts PieGraph UI tests

* Ensure cursor is not shown in focused input elements

* Converts VisitorMap UI tests

* Converts CustomLogo UI tests

* Converts BarGraph UI tests

* Converts EvolutionGraph UI tests

* Converts IntranetMeasurable UI tests

* Converts TrackingFailures UI tests

* Converts CampaignBuilder UI tests

* Converts TagManagerTeaser UI tests

* fix request url rewrite for changed port

* Converts TwoFactorAuth UI tests

* do not print full responses in logs, but size instead

* improve additional style injection

* use submodule branches

* fix request interception

* update dependencies

* [TEMP] disable dangerous link checks

* [TEMP] limit tests

* Use puppeteer@next and make sure diffs get uploaded properly.

* Use correct fs function.

* Allow timeout to be specified on command line for UI tests and debug console logs.

* timeout option tweak

* Setup diff dir once before running tests not before each suite.

* fix last commit

* Update screenshots and fix some specs.

* Convert some tests that were not converted during merge.

* updating screenshots

* Updating screenshots and fixing some tests.

* more test fixes

* couple more test fixes

* More test fixes and plugin updates.

* wait for jquery

* Fix some screenshots and tests.

* more test fixes

* debug travis test failure

* remove .only

* more test fixes and updated expected files

* another test fixing iteration

* typo

* another quick test change

* more tests updates

* Test fixes and & more debugging.

* more debugging and test fixes

* more fixes and debugging.

* remove .only

* Another round of fixed tests.

* more debugging & fixes

* more test changes

* more debugging and fixes

* Fixing more tests + some bug fixes.

* Couple more fixes.

* Couple more fixes.

* Fixing tracking failures test

* more fixes

* Last couple fixes hopefully.

* couple more test fixes

* more fixes, bug fix in usersmanager, some test updates

* Some more test fixes/changes.

* more and more fixes

* hoping for a green build

* Do not compare against existing files in dashboard_spec.

* more fixes, re-enabling travis

* really re-enable travis

* Install puppeteer on travis-ci.

* more fixes

* try to fix random failues

* remove return

* Convert some login tests I forgot and update UsersManager expected file

* Fix test for primary key update

* Update AddPrimaryKey.php

* More test fixes + implement synchronous comparison threshold (so no resemblejs)

* More wait fixes + reset token detection fix.

* couple more fixes

* Fix login/overlay screenshot issue & magick command running issue.

* identify is the executable on travis (hopefully) + fix some random failures

* Another run.

* Last fix.

* two more tweaks

* typo

2 files changed, 8 insertions, 7 deletions

diff --git a/plugins/DBStats/tests/UI/DBStats_spec.js b/plugins/DBStats/tests/UI/DBStats_spec.js
index 11ce66cffa..24d841aaac 100644
--- a/plugins/DBStats/tests/UI/DBStats_spec.js
+++ b/plugins/DBStats/tests/UI/DBStats_spec.js
@@ -10,11 +10,12 @@
 describe("DBStats", function () {
     this.timeout(0);
 
-    var url = "?module=DBStats&action=index&idSite=1&period=day&date=yesterday";
+    const url = "?module=DBStats&action=index&idSite=1&period=day&date=yesterday";
 
-    it("should load correctly", function (done) {
-        expect.screenshot('admin_page').to.be.captureSelector('#content', function (page) {
-            page.load(url);
-        }, done);
+    it("should load correctly", async function() {
+        await page.goto(url);
+
+        const content = await page.$('#content');
+        expect(await content.screenshot()).to.matchImage('admin_page');
     });
 });
\ No newline at end of file
diff --git a/plugins/DBStats/tests/UI/expected-screenshots/DBStats_admin_page.png b/plugins/DBStats/tests/UI/expected-screenshots/DBStats_admin_page.png
index 8206489358..fbf3c5719d 100644
--- a/plugins/DBStats/tests/UI/expected-screenshots/DBStats_admin_page.png
+++ b/plugins/DBStats/tests/UI/expected-screenshots/DBStats_admin_page.png
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:df2c045ece25d4892202f685cffe5831b98e4c37474e92ff3243521a4030f30f
-size 233737
+oid sha256:3af86879a34e7b1ffdac3aca90b0881e1c7bd44cdb0c4080fab34abaf238c9ff
+size 226770