| <!DOCTYPE HTML> |
| <html> |
| <head> |
| <script src="../resources/js-test-pre.js"></script> |
| </head> |
| <body> |
| <script> |
| description("Test PerformanceObserver handling of entries added while in callback."); |
| window.jsTestIsAsync = true; |
| |
| window.callbackCount = 0; |
| window.list = null; |
| |
| let observer1 = new PerformanceObserver((list) => { |
| window.list = list; |
| callbackCount++; |
| testPassed("PerformanceObserver 1 callback fired"); |
| |
| if (callbackCount === 1) { |
| performance.mark("mark2"); |
| shouldBe(`list.getEntries().length`, `1`); |
| } else if (callbackCount === 3) { |
| shouldBe(`list.getEntries().length`, `2`); |
| } else { |
| testFailed("Unexpected callback count"); |
| finishJSTest(); |
| } |
| |
| for (let mark of list.getEntries()) |
| debug(" - " + mark.name); |
| }); |
| |
| let observer2 = new PerformanceObserver((list) => { |
| window.list = list; |
| callbackCount++; |
| testPassed("PerformanceObserver 2 callback fired"); |
| |
| if (callbackCount === 2) { |
| performance.mark("mark3"); |
| shouldBe(`list.getEntries().length`, `2`); |
| } else if (callbackCount === 4) { |
| shouldBe(`list.getEntries().length`, `1`); |
| } else { |
| testFailed("Unexpected callback count"); |
| finishJSTest(); |
| } |
| |
| for (let mark of list.getEntries()) |
| debug(" - " + mark.name); |
| |
| if (callbackCount === 4) |
| finishJSTest(); |
| }); |
| |
| observer1.observe({entryTypes: ["mark"]}); |
| observer2.observe({entryTypes: ["mark"]}); |
| performance.mark("mark1"); |
| </script> |
| <script src="../resources/js-test-post.js"></script> |
| </body> |
| </html> |
