| # LayoutTests for Accessibility |
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| ## General Info on LayoutTests: Building and Running the Tests |
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| See [Layout Tests](/docs/testing/layout_tests.md) for general |
| info on how to build and run layout tests. |
| |
| ## Old vs. New |
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| There are two styles of accessibility layout tests: |
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| * Using a ```-expected.txt``` (now deprecated) |
| * Unit-style tests with assertions |
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| Use the unit-style tests. An example is aria-modal.html. |
| |
| ## Methodology and Bindings |
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| These tests check the accessibility tree directly in Blink using ```AccessibilityController```, which is just a test helper. |
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| The code that implements the bindings is here: |
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| * ```content/shell/test_runner/accessibility_controller.cc``` |
| * ```content/shell/test_runner/web_ax_object_proxy.cc``` |
| |
| You'll probably find bindings for the features you want to test already. If not, it's not hard to add new ones. |
