Reducing the chance of flaky test failure

[java-codehunger]

Description:
This test is flakily fails. I run this test many times and it makes assertion fails. The failure message is as follows.

Failure:
Running com.alibaba.wasp.executor.TestExecutorService
Tests run: 1, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 0.249 sec <<< FAILURE!
testExecutorService(com.alibaba.wasp.executor.TestExecutorService) Time elapsed: 0.166 sec <<< FAILURE!
java.lang.AssertionError: expected:<10> but was:<5>
at org.junit.Assert.fail(Assert.java:93)
at org.junit.Assert.failNotEquals(Assert.java:647)
at org.junit.Assert.assertEquals(Assert.java:128)
at org.junit.Assert.assertEquals(Assert.java:472)
at org.junit.Assert.assertEquals(Assert.java:456)
at com.alibaba.wasp.executor.TestExecutorService.testExecutorService(TestExecutorService.java:109)

Results :
Failed tests:
TestExecutorService.testExecutorService:109 expected:<10> but was:<5>

Tests run: 1, Failures: 1, Errors: 0, Skipped: 0

Solution: The chances of test failure is reduced simply increasing a bit more sleeping time.

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[java-codehunger]

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