Tired of fragile HTML tests that depend on exact attribute order? WordPress 6.9 introduced assertEqualHTML(), a new way to validate HTML by comparing it semantically. This method normalizes the markup, ensuring your tests are resilient to changes!

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A better way to test HTML in WordPress with assertEqualHTML()

PHPUnit tests for HTML output are fragile. Attribute order changes, a trailing semicolon, and suddenly tests fail — even though the browser renders the same thing. WordPress 6.9 adds assertEqualHTML() to WP_UnitTestCase.

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