[jfx-tests] RFR: 8315896: Perspective lod tests fail because of minute difference in values

[Jayathirth D V]

Two perspective lod tests fail because of minute differences in expected values.

Failing tests:
test/scenegraph/fx3d/lod/PerspectiveLodCameraTest.java:
test/scenegraph/fx3d/lod/PerspectiveLodGroupTest.java: 

Exception:
test test.scenegraph.fx3d.lod.LodTests.sphereInitialLightOnTest(): failure
org.jemmy.TimeoutExpiredException: State 'Expected 50180.140882730484, but was 50180.137157440186' has not been reached in 1000 milliseconds
at org.jemmy.timing.Waiter.ensureValue(Waiter.java:93)
at test.scenegraph.fx3d.lod.LodTestBase.checkLod(LodTestBase.java:117)
at test.scenegraph.fx3d.lod.LodTests.sphereInitialLightOnTest(LodTests.java:98)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
at java.base/java.lang.reflect.Method.invoke(Method.java:577)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:59)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:56)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:299)
at org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:293)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
at java.base/java.lang.Thread.run(Thread.java:833) 

These little difference in values are seen both initial drawing and updates.
These tests are not run from long time and change in product might change lod values.

With updated lod values i have verified that both the tests pass in OpenGL and Metal pipeline with both retina display(scale = 2) and external monitor(scale = 1).

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Commit messages:
 - 8315896: Perspective lod tests fail because of minute difference in values

Changes: https://git.openjdk.org/jfx-tests/pull/6/files
 Webrev: https://webrevs.openjdk.org/?repo=jfx-tests&pr=6&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8315896
  Stats: 8 lines in 2 files changed: 0 ins; 0 del; 8 mod
  Patch: https://git.openjdk.org/jfx-tests/pull/6.diff
  Fetch: git fetch https://git.openjdk.org/jfx-tests.git pull/6/head:pull/6

PR: https://git.openjdk.org/jfx-tests/pull/6