Library used to match elements and attributes inside HTML. The patterns are plain HTML with only those elements and attributes that should be compared. That is, elements and attributes can be omitted if they don't need to match. The HTML elements must match exactly in both order and structure, but attributes are not sensitive to order.
Make it easy to write tests that verifies the presence of of essential HTML elements and attributes. Use it to verify htmx attributes and build confidence that the application keeps working, without comprehensive browser testing tools such as chromedp.
Whitespace are trimmed by default before matching text. It is also possible to
match verbatim by prepending the pattern text by verbatim:. Substring
matching is supported by prepending the pattern with substring:.
https://pkg.go.dev/golang.org/x/net/html can be used to parse HTML, but the
results can be confusing since it follows complicated rules for HTML5. This
library provides a primitive alternative ParseVerbatim to make it easy to
parse patterns without surprises.
func ExampleContainsTree() {
full := MustParseVerbatim(`<html>
<body>
<div hx-test="/foo" hx-target="#mytarget">Click here</div>
<div>lorem ipsum</div>
<div>lorem <span id="mytarget">ipsum</span></div>
</body>
</html>`)
pattern := MustParseVerbatim(`
<div hx-target="#mytarget"></div>
<span id="mytarget" />`)
fmt.Println(ContainsTree(full, pattern))
// Output: true
}
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