Reduce the chances that successfulCheckTest will fail

[skabashnyuk]

What does this PR do?

The cause of the fail is that TestServerChecker has only 500msec to do the job correctly in successfulCheckTest. Since successfulCheckTest is the single testcase that used TestServerChecker constructed in setUp it may occasionally fail if the time between setUp and successfulCheckTest.checker.start(); are longer then 500msec

What issues does this PR fix or reference?

#13211

Release Notes

n/a

Docs PR

n/a

[che-bot]

E2E tests of Eclipse Che Multiuser on OCP has failed:

• Build details
• Test report
• docker image: eclipseche/che-server:14688
  https://github.com/orgs/eclipse/teams/eclipse-che-qa please check this report.
  Use command "ci-test" to rerun the test.

[che-bot]

E2E Happy path tests of Eclipse Che Single User on K8S (minikube v1.1.1) has been successful:

• build details
• "che-server" docker image: maxura/che-server:14688

[che-bot]

E2E Happy path tests of Eclipse Che Single User on K8S (minikube v1.1.1) has been successful:

• build details
• "che-server" docker image: maxura/che-server:14688

[che-bot]

E2E tests of Eclipse Che Multiuser on OCP has failed:

• Build details
• Test report
• docker image: eclipseche/che-server:14688
  https://github.com/orgs/eclipse/teams/eclipse-che-qa please check this report.
  Use command "ci-test" to rerun the test.

[che-bot]

E2E Happy path tests of Eclipse Che Single User on K8S (minikube v1.1.1) has been successful:

• build details
• "che-server" docker image: maxura/che-server:14688

[che-bot]

E2E tests of Eclipse Che Multiuser on OCP has failed:

• Build details
• Test report
• docker image: eclipseche/che-server:14688
  https://github.com/orgs/eclipse/teams/eclipse-che-qa please check this report.
  Use command "ci-test" to rerun the test.

[skabashnyuk]

ci-test

[che-bot]

E2E tests of Eclipse Che Multiuser on OCP has failed:

• Build details
• Test report
• docker image: eclipseche/che-server:14688
  https://github.com/orgs/eclipse/teams/eclipse-che-qa please check this report.
  Use command "ci-test" to rerun the test.

[che-bot]

E2E Happy path tests of Eclipse Che Single User on K8S (minikube v1.1.1) has been successful:

• build details
• "che-server" docker image: maxura/che-server:14688

[che-bot]

E2E tests of Eclipse Che Multiuser on OCP has failed:

• Build details
• Test report
• docker image: eclipseche/che-server:14688
  https://github.com/orgs/eclipse/teams/eclipse-che-qa please check this report.
  Use command "ci-test" to rerun the test.

[che-bot]

E2E Happy path tests of Eclipse Che Single User on K8S (minikube v1.1.1) has been successful:

• build details
• "che-server" docker image: maxura/che-server:14688

[che-bot]

E2E tests of Eclipse Che Multiuser on OCP has failed:

• Build details
• Test report
• docker image: eclipseche/che-server:14688
  https://github.com/orgs/eclipse/teams/eclipse-che-qa please check this report.
  Use command "ci-test" to rerun the test.

[skabashnyuk]

@eclipse/eclipse-che-qa can you review test results?

[dmytro-ndp]

@skabashnyuk: there is expected failure in Java selenium tests results here. No regression is found.