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doc(debug): add instructions for debugging the tests in the README

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Victor Berchet 2014-10-29 17:52:15 +01:00
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@ -70,3 +70,21 @@ Notes:
the transpiler specs), the transpiler specs),
- You can also add `debugger;` statements in the specs (JavaScript). The execution will halt when - You can also add `debugger;` statements in the specs (JavaScript). The execution will halt when
the developer tools are opened in the browser running Karma. the developer tools are opened in the browser running Karma.
## Debug the tests
If you need to debug the tests:
- add a `debugger;` statement to the test you want to debug (oe the source code),
- execute karma `node_modules/karma/bin/karma start karma-js.conf.js`,
- press the top right "DEBUG" button,
- open the dev tools and press F5,
- the execution halt at the `debugger;` statement
Note (WebStorm users):
You can create a Karma run config from WebStorm.
Then in the "Run" menu, press "Debug 'karma-js.conf.js'", WebStorm will stop in the generated code
on the `debugger;` statement.
You can then step into the code and add watches.
The `debugger;` statement is needed because WebStorm will stop in a transpiled file. Breakpoints in
the original source files are not supported at the moment.