function OpenTelemetryFrontPagePerformanceTest::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/OpenTelemetryFrontPagePerformanceTest.php, line 53

Class

OpenTelemetryFrontPagePerformanceTest

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');
    $expected_queries = [];
    $recorded_queries = $performance_data->getQueries();
    $this->assertSame($expected_queries, $recorded_queries);
    $expected = [
        'QueryCount' => 0,
        'CacheGetCount' => 1,
        'CacheSetCount' => 0,
        'CacheDeleteCount' => 0,
        'CacheTagChecksumCount' => 0,
        'CacheTagIsValidCount' => 1,
        'CacheTagInvalidationCount' => 0,
        'CacheTagLookupQueryCount' => 1,
        'ScriptCount' => 1,
        'ScriptBytes' => 11850,
        'StylesheetCount' => 2,
        'StylesheetBytes' => 41200,
    ];
    $this->assertMetrics($expected, $performance_data);
}