Update Empty Workspace sample test per test-case scenario and add workaround

[SkorikSergey]

What does this PR do?

Add a workaround for a known issue where the duplicate workspace warning incorrectly appears when creating an Empty Workspace with "Create New" checkbox OFF.

When creating an Empty Workspace sample with "Create New" checkbox turned OFF, the dashboard shows a duplicate workspace warning even though Empty Workspace should always generate unique names.

Workaround

When the duplicate workspace warning appears unexpectedly, the test now:

• Logs an error message describing the known issue
• Skips the test to avoid false failures

Changes

• Added try-catch block to detect unexpected duplicate workspace warning
• Added this.skip() with error logging when the warning appears
• Added TODO comment referencing the issue to be fixed

Note

This workaround should be removed after fixing https://redhat.atlassian.net/browse/CRW-10546

Screenshot/screencast of this PR

What issues does this PR fix or reference?

PR Checklist

As the author of this Pull Request I made sure that:

• The Eclipse Contributor Agreement is valid
• Code produced is complete
• Code builds without errors
• Tests are covering the bugfix or new feature
• The repository devfile is up to date and works
• Sections What issues does this PR fix or reference and How to test this PR completed
• Relevant user documentation updated
• Relevant contributing documentation updated
• CI/CD changes implemented, documented and communicated

Reviewers

Reviewers, please comment how you tested the PR when approving it.

[dmytro-ndp]

The try-catch block for detecting the duplicate workspace alert (lines 112-114) silently swallows all exceptions, not just timeouts.

At the same time DriverHelper already provides waitVisibilityBoolean() function which returns true/false without throwing.

If not add workaround, then a single-line assertion would be enough to ensure there is no "Existing Workspace Found" alert appeared:

expect(await dashboard.isExistingWorkspaceFoundAlertVisible(TIMEOUT_CONSTANTS.TS_COMMON_DASHBOARD_WAIT_TIMEOUT),
    'Duplicate workspace warning should not appear for Empty Workspace sample').to.be.false;

It requires adding next helper method to the Dashboard class:

  async isExistingWorkspaceFoundAlertVisible(timeout: number = TIMEOUT_CONSTANTS.TS_COMMON_DASHBOARD_WAIT_TIMEOUT): Promise<boolean> {
      Logger.debug();

      const attempts: number = Math.ceil(timeout / TIMEOUT_CONSTANTS.TS_SELENIUM_DEFAULT_POLLING);
      return await this.driverHelper.waitVisibilityBoolean(Dashboard.EXISTING_WORKSPACE_FOUND_ALERT, attempts);
  }

[dmytro-ndp]

Looks good to merge.