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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:22:09 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:22:09 +0000
commit43a97878ce14b72f0981164f87f2e35e14151312 (patch)
tree620249daf56c0258faa40cbdcf9cfba06de2a846 /testing/web-platform/tests/performance-timeline/performanceobservers.js
parentInitial commit. (diff)
downloadfirefox-43a97878ce14b72f0981164f87f2e35e14151312.tar.xz
firefox-43a97878ce14b72f0981164f87f2e35e14151312.zip
Adding upstream version 110.0.1.upstream/110.0.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'testing/web-platform/tests/performance-timeline/performanceobservers.js')
-rw-r--r--testing/web-platform/tests/performance-timeline/performanceobservers.js44
1 files changed, 44 insertions, 0 deletions
diff --git a/testing/web-platform/tests/performance-timeline/performanceobservers.js b/testing/web-platform/tests/performance-timeline/performanceobservers.js
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index 0000000000..3f357374ef
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+++ b/testing/web-platform/tests/performance-timeline/performanceobservers.js
@@ -0,0 +1,44 @@
+// Compares a performance entry to a predefined one
+// perfEntriesToCheck is an array of performance entries from the user agent
+// expectedEntries is an array of performance entries minted by the test
+function checkEntries(perfEntriesToCheck, expectedEntries) {
+ function findMatch(pe) {
+ // we match based on entryType and name
+ for (var i = expectedEntries.length - 1; i >= 0; i--) {
+ var ex = expectedEntries[i];
+ if (ex.entryType === pe.entryType && ex.name === pe.name) {
+ return ex;
+ }
+ }
+ return null;
+ }
+
+ assert_equals(perfEntriesToCheck.length, expectedEntries.length, "performance entries must match");
+
+ perfEntriesToCheck.forEach(function (pe1) {
+ assert_not_equals(findMatch(pe1), null, "Entry matches");
+ });
+}
+
+// Waits for performance.now to advance. Since precision reduction might
+// cause it to return the same value across multiple calls.
+function wait() {
+ var now = performance.now();
+ while (now === performance.now())
+ continue;
+}
+
+// Ensure the entries list is sorted by startTime.
+function checkSorted(entries) {
+ assert_not_equals(entries.length, 0, "entries list must not be empty");
+ if (!entries.length)
+ return;
+
+ var sorted = false;
+ var lastStartTime = entries[0].startTime;
+ for (var i = 1; i < entries.length; ++i) {
+ var currStartTime = entries[i].startTime;
+ assert_less_than_equal(lastStartTime, currStartTime, "entry list must be sorted by startTime");
+ lastStartTime = currStartTime;
+ }
+}