Index: content/browser/debugger/manual_tests/heap-profiler-test-snapshots-comparison.html |
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-<html> |
- <head> |
- <title>Heap Profiler: heap snapshots comparison test</title> |
- <script type="text/javascript"> |
- var aHolder = [], bHolder = [], cHolder = [], dHolder = []; |
- |
- function A(x) { |
- this.x = x; |
- } |
- |
- function B(x) { |
- this.x = x; |
- } |
- |
- function C() {} |
- |
- var i; |
- for (i = 0; i < 100; ++i) { |
- var b = new B('hello'); |
- bHolder.push(b); |
- aHolder.push(new A(b)); |
- b = null; |
- } |
- for (i = 0; i < 25; ++i) { |
- cHolder.push(new C()); |
- } |
- |
- function D() {} |
- |
- function changeStuff() { |
- if (aHolder.length > 0) { |
- aHolder.splice(aHolder.length - 25, 25); |
- } |
- for (i = 0; i < 25; ++i) { |
- bHolder.push(new B('hello')); |
- } |
- cHolder = []; |
- for (i = 0; i < 25; ++i) { |
- dHolder.push(new D()); |
- } |
- } |
- </script> |
- </head> |
- <body> |
- This is the test for heap snapshot comparison functionality. |
- <br> |
- <br> |
- To use this test: |
- <ul> |
- <li>load file in the browser; |
- <li>open DevTools (Ctrl+Shift+I on Win/Linux, Command+Option+I on Mac); |
- <li>go to 'Profiles' page; |
- <li>press 'Take heap snapshot' button |
- (eye icon on the left side of the status bar); |
- <li>press |
- <input type="button" name="changeStuff" value="this button" onclick="changeStuff()" />; |
- <li>press 'Take heap snapshot' button again; |
- </ul> |
- <br> |
- On the left pane under 'Heap snapshots' section, items called |
- 'Snapshot 1' and 'Snapshot 2' must appear. Select 'Snapshot 2'. |
- Ensure that absolute values are shown (not percents). |
- <br> |
- <br> |
- TEST 1. Verify the following: |
- <ul> |
- <li>the value in '+/- Count' column for 'A' must be '-25'; |
- <li>after expanding 'A' item, the value in '+/- Count' column |
- for 'Array' child entry must also be '-25'; |
- <li>the value in '+/- Count' column for 'B' must be '+25'; |
- <li>after expanding 'B' item, the value in '+/- Count' column |
- for 'Array' child entry must also be '+25'; the value for 'A' |
- child must be '-25'; |
- </ul> |
- <br> |
- TEST 2. Change display to percent view (using the percent button on the |
- status bar). Verify the following: |
- <ul> |
- <li>values in '+/- Count' and '+/- Size' columns for 'C' must be 'deleted'; |
- <li>values in '+/- Count' and '+/- Size' columns for 'D' must be 'new'; |
- </ul> |
- </body> |
-</html> |