| <!DOCTYPE html> |
| <html> |
| <head> |
| <meta charset="utf-8" /> |
| <script src="/w3c/resources/testharness.js"></script> |
| <script src="/w3c/resources/testharnessreport.js"></script> |
| <link rel="stylesheet" href="/w3c/resources/testharness.css" /> |
| <script> |
| test(() => { |
| assert_true(performance != undefined, 'performance is defined.'); |
| assert_true(performance.memory != undefined, 'performance.memory is defined.'); |
| const memoryInfo = performance.memory; |
| assert_true(memoryInfo.jsHeapSizeLimit != undefined, 'performance.memory.jsHeapSizeLimit is defined'); |
| assert_true(memoryInfo.totalJSHeapSize != undefined, 'performance.memory.totalJSHeapSize is defined'); |
| assert_true(memoryInfo.usedJSHeapSize != undefined, 'performance.memory.usedJSHeapSize is defined'); |
| assert_greater_than_equal(memoryInfo.jsHeapSizeLimit, memoryInfo.totalJSHeapSize, "jsHeapSizeLimit should be no less than totalJSHeapSize", {}); |
| // TODO(npm): memoryInfo.totalJSHeapSize should be greater than or equal to |
| // memoryInfo.totalJSHeapSize, but this is not always the case. |
| // See https://crbug.com/849322. |
| }); |
| </script> |
| </head> |
| <body> |
| <h1>Description</h1> |
| <p>This test validates that performance.memory exists in dedicated workers </p> |
| </body> |
| </html> |
