Re: [platform-swt-dev] Bug 498208 - GTK3 build machine test errors for S

[Leo Ufimtsev <lufimtse@xxxxxxxxxx>]

Looking at the error log from the bug you submitted:

https://bugs.eclipse.org/bugs/show_bug.cgi?id=498208

It seems it's expected 128, but received 255. 

I wonder if this could be a 32/64 bit issue? Are the build servers 32bits?

I also wonder about the valid ranges of alpha, is it always 255, or is there some circumstance under which it is 128?

fyi:

Error log:

http://download.eclipse.org/eclipse/downloads/drops4/N20160719-2000/testresults/html/org.eclipse.swt.tests_ep47N-unit-lin64_linux.gtk.x86_64_8.0.html#AllNonBrowserTests

Error expected:<128> but was:<255> 

java.lang.AssertionError: expected:<128> but was:<255>

at org.eclipse.swt.tests.junit.Test_org_eclipse_swt_widgets_Shell.test_setAlpha(Test_org_eclipse_swt_widgets_Shell.java:584)

at org.eclipse.test.EclipseTestRunner.run(EclipseTestRunner.java:743)

at org.eclipse.test.EclipseTestRunner.run(EclipseTestRunner.java:351)

at org.eclipse.test.CoreTestApplication.runTests(CoreTestApplication.java:36)

at org.eclipse.test.CoreTestApplication.run(CoreTestApplication.java:32)

at org.eclipse.equinox.internal.app.EclipseAppContainer.callMethodWithException(EclipseAppContainer.java:587)

at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:198)

at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134)

at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)

at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:388)

at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:243)

at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:673)

at org.eclipse.equinox.launcher.Main.basicRun(Main.java:610)

at org.eclipse.equinox.launcher.Main.run(Main.java:1519)

at org.eclipse.equinox.launcher.Main.main(Main.java:1492)

at org.eclipse.core.launcher.Main.main(Main.java:34)

On Wed, Jul 20, 2016 at 11:58 AM, Eric Williams <ericwill@xxxxxxxxxx> wrote:

Hello,

As part of a fix for bug 497707, I wrote a test case for Shell.setAlpha(). This creates a shell, tests the alpha, then sets it, then tests again.

For some reason this test is failing on the build machine but not on my local machine. I've tested with all versions of GTK3 back to 3.6 as well as GTK2.24 and it passes, no errors to be seen.

Is there something specific to build machine that could be causing this? Maybe a lack of a compositing manager running (or something similar)?

Thanks,
Eric
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Leo Ufimtsev | Associate Software Engineer @ Red Hat