test: relax assertion on logs preview text in acceptance test

Change strict equality check to a contains assertion in the test
for the course page test results logs preview. This makes the test
less brittle by allowing extra data in the logs while still ensuring
the expected failure messages are present.

Author: rohitpaulk

tests/acceptance/course-page/view-test-results-test.js

@@ -83,7 +83,7 @@ module('Acceptance | course-page | view-test-results', function (hooks) {
 
     await coursePage.testResultsBar.clickOnBottomSection();
     await waitUntil(() => coursePage.testResultsBar.logsPreview.logs !== ''); // Logs are fetched on-demand
-    assert.strictEqual(coursePage.testResultsBar.logsPreview.logs, '[stage-1] failure\n[stage-2] failure');
+    assert.contains(coursePage.testResultsBar.logsPreview.logs, '[stage-1] failure\n[stage-2] failure');
 
     await percySnapshot('Course Page - View test results - Failure');
   });