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https://issues.apache.org/jira/browse/SPARK-31756?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Sean R. Owen resolved SPARK-31756.
----------------------------------
Fix Version/s: 3.1.0
Resolution: Fixed
Resolved by https://github.com/apache/spark/pull/28578
> Add real headless browser support for UI test
> ---------------------------------------------
>
> Key: SPARK-31756
> URL: https://issues.apache.org/jira/browse/SPARK-31756
> Project: Spark
> Issue Type: Improvement
> Components: Web UI
> Affects Versions: 3.1.0
> Reporter: Kousuke Saruta
> Assignee: Kousuke Saruta
> Priority: Major
> Fix For: 3.1.0
>
>
> In the current master, there are two problems for UI test.
> 1. Lots of tests especially JavaScript related ones are done manually.
> Appearance is better to be confirmed by our eyes but logic should be tested
> by test cases ideally.
>
> 2. Compared to the real web browsers, HtmlUnit doesn't seem to support
> JavaScript enough.
> I added a JavaScript related test before for SPARK-31534 using HtmlUnit which
> is simple library based headless browser for test.
> The test I added works somehow but some JavaScript related error is shown in
> unit-tests.log.
> {code:java}
> ======= EXCEPTION START ========
> Exception
> class=[net.sourceforge.htmlunit.corejs.javascript.JavaScriptException]
> com.gargoylesoftware.htmlunit.ScriptException: Error: TOOLTIP: Option
> "sanitizeFn" provided type "window" but expected type "(null|function)".
> (http://192.168.1.209:60724/static/jquery-3.4.1.min.js#2)
> at
> com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine$HtmlUnitContextAction.run(JavaScriptEngine.java:904)
> at
> net.sourceforge.htmlunit.corejs.javascript.Context.call(Context.java:628)
> at
> net.sourceforge.htmlunit.corejs.javascript.ContextFactory.call(ContextFactory.java:515)
> at
> com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.callFunction(JavaScriptEngine.java:835)
> at
> com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.callFunction(JavaScriptEngine.java:807)
> at
> com.gargoylesoftware.htmlunit.InteractivePage.executeJavaScriptFunctionIfPossible(InteractivePage.java:216)
> at
> com.gargoylesoftware.htmlunit.javascript.background.JavaScriptFunctionJob.runJavaScript(JavaScriptFunctionJob.java:52)
> at
> com.gargoylesoftware.htmlunit.javascript.background.JavaScriptExecutionJob.run(JavaScriptExecutionJob.java:102)
> at
> com.gargoylesoftware.htmlunit.javascript.background.JavaScriptJobManagerImpl.runSingleJob(JavaScriptJobManagerImpl.java:426)
> at
> com.gargoylesoftware.htmlunit.javascript.background.DefaultJavaScriptExecutor.run(DefaultJavaScriptExecutor.java:157)
> at java.lang.Thread.run(Thread.java:748)
> Caused by: net.sourceforge.htmlunit.corejs.javascript.JavaScriptException:
> Error: TOOLTIP: Option "sanitizeFn" provided type "window" but expected type
> "(null|function)". (http://192.168.1.209:60724/static/jquery-3.4.1.min.js#2)
> at
> net.sourceforge.htmlunit.corejs.javascript.Interpreter.interpretLoop(Interpreter.java:1009)
> at
> net.sourceforge.htmlunit.corejs.javascript.Interpreter.interpret(Interpreter.java:800)
> at
> net.sourceforge.htmlunit.corejs.javascript.InterpretedFunction.call(InterpretedFunction.java:105)
> at
> net.sourceforge.htmlunit.corejs.javascript.ContextFactory.doTopCall(ContextFactory.java:413)
> at
> com.gargoylesoftware.htmlunit.javascript.HtmlUnitContextFactory.doTopCall(HtmlUnitContextFactory.java:252)
> at
> net.sourceforge.htmlunit.corejs.javascript.ScriptRuntime.doTopCall(ScriptRuntime.java:3264)
> at
> com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine$4.doRun(JavaScriptEngine.java:828)
> at
> com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine$HtmlUnitContextAction.run(JavaScriptEngine.java:889)
> ... 10 more
> JavaScriptException value = Error: TOOLTIP: Option "sanitizeFn" provided type
> "window" but expected type "(null|function)".
> == CALLING JAVASCRIPT ==
> function () {
> throw e;
> }
> ======= EXCEPTION END ========{code}
>
> I tried to upgrade HtmlUnit to 2.40.0 but what is worse, the test become not
> working even though it works on real browsers like Chrome, Safari and Firefox
> without error.
> {code:java}
> [info] UISeleniumSuite:
> [info] - SPARK-31534: text for tooltip should be escaped *** FAILED *** (17
> seconds, 745 milliseconds)
> [info] The code passed to eventually never returned normally. Attempted 2
> times over 12.910785232 seconds. Last failure message:
> com.gargoylesoftware.htmlunit.ScriptException: ReferenceError: Assignment to
> undefined "regeneratorRuntime" in strict mode
> (http://192.168.1.209:62132/static/vis-timeline-graph2d.min.js#52(Function)#1){code}
>
> To resolve those problems, it's better to support headless browser for UI
> test.
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