function OpenTelemetryPerformanceTest::testFrontPageHotCache

Logs front page tracing data with a hot cache.

Hot here means that all possible caches are warmed.

File

core/profiles/demo_umami/tests/src/FunctionalJavascript/OpenTelemetryPerformanceTest.php, line 159

Class

OpenTelemetryPerformanceTest

Tests demo_umami profile performance.

Namespace

Code

protected function testFrontPageHotCache() : void {
  // Request the page twice so that asset aggregates and image derivatives are
  // definitely cached in the browser cache. The first response builds the
  // file and serves from PHP with private, no-store headers. The second
  // request will get the file served directly from disk by the browser with
  // cacheable headers, so only the third request actually has the files
  // in the browser cache.
  $this->drupalGet('<front>');
  $this->drupalGet('<front>');
  $performance_data = $this->collectPerformanceData(function () {
    $this->drupalGet('<front>');
  }, 'umamiFrontPageHotCache');
  $this->assertSession()
    ->pageTextContains('Umami');
  $this->assertMetricsByName('umamiFrontPageHotCache', $performance_data);
}