Move /e2e -> /e2e-tests

e2e-tests/cypress/tests/integration/channels/performance/utils.js

@@ -0,0 +1,37 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+export const measurePerformance = (name, upperLimit, callback, reset, runs = 6) => {
+    return cy.window().its('performance').then((performance) => {
+        const durations = [];
+
+        Cypress._.times(runs, (i) => {
+            const markerNameA = `${name}_start_${i}`;
+            const markerNameB = `${name}_end_${i}`;
+
+            cy.wrap({mark: () => performance.mark(markerNameA)}).invoke('mark');
+            callback().then(() => {
+                performance.mark(markerNameB);
+
+                performance.measure(`${name}_${i}`, markerNameA, markerNameB);
+                const measure = performance.getEntriesByName(`${name}_${i}`)[0];
+                durations.push(measure.duration);
+            });
+
+            reset();
+        });
+
+        const currentTime = Date.now();
+
+        cy.log('loop finish').then(() => {
+            const avgDuration = Math.round(durations.reduce((a, b) => a + b) / runs);
+            cy.log(`[PERFORMANCE] ${name}: ${avgDuration}ms ${avgDuration <= upperLimit ? ' within upper limit' : ' outside upper limit'} of ${upperLimit}ms`);
+            cy.writeFile(`./tests/integration/performance/logs/${name}_${currentTime}.json`, {name, date: currentTime, duration: avgDuration});
+            assert.isAtMost(avgDuration, upperLimit);
+
+            // Clean the marks
+            performance.clearMarks();
+            performance.clearMeasures();
+        });
+    });
+};