Merge pull request #5448 from dfe-analytical-services/EES-5705-post-t…

…est-zip-to-slack-if-flaky-tests

EES-5705 - post test ZIP if flaky tests exist

tests/robot-tests/tests/libs/slack.py

@@ -130,7 +130,9 @@ def send_test_report(self, env: str, suites_ran: str, suites_failed: [], number_
 
         response = self.client.chat_postMessage(channel=self.slack_channel, text="All results", blocks=attachments)
 
-        if suites_failed:
+        # Post the test report if there were test failures or if more than 1 run attempt was necessary in
+        # order to get all tests to pass.  The latter case will help to identify which of our tests are flaky.
+        if suites_failed or number_of_test_runs > 1:
             date = datetime.datetime.utcnow().strftime("%Y%m%d-%H%M%S")
 
             report_name = f"UI-test-report-{suites_ran.replace('tests/', '')}-{env}-{date}.zip"