Function normalizeString

test/checkArrayExpectation.js:30–76

(str, testDirectory)

 * @returns {string} normalized string
 */
const normalizeString = (str, testDirectory) => {
	if (!str) return str;
	const root = getWebpackRoot(testDirectory);
	class="cm">// Replace more-specific test dir first, then the broader root
	str = str.replace(new RegExp(quoteMeta(testDirectory), class="st">"g"), class="st">"<TEST_DIR>");
	if (root) {
		str = str.replace(new RegExp(quoteMeta(root), class="st">"g"), class="st">"<WEBPACK_ROOT>");
		class="cm">// Replace ancestor directories above webpack root.
		class="cm">// The resolver walks up to the filesystem root looking for
		class="cm">// node_modules, producing paths like /Users/x/node_modules.
		let ancestor = path.dirname(root);
		while (ancestor !== path.dirname(ancestor)) {
			str = str.replace(new RegExp(quoteMeta(ancestor), class="st">"g"), class="st">"<ANCESTOR>");
			ancestor = path.dirname(ancestor);
		}
	}
	class="cm">// Normalize the output directory suite name (e.g. test/js/ConfigTestCases/
	class="cm">// vs test/js/ConfigCacheTestCases/) so all suites produce identical snapshots.
	str = str.replace(/(<WEBPACK_ROOT>\/test\/js\/)[^/]+\class="cm">//g, class="st">"$1<OUTPUT>/");
	class="cm">// Strip stack trace lines — line numbers vary across Node.js versions
	class="cm">// and between runs (e.g. processTicksAndRejections).
	str = str
		.split(class="st">"\n")
		.filter((line) => !/^\s+at\s/.test(line))
		.join(class="st">"\n")
		.replace(/\n{3,}/g, class="st">"\n\n")
		.trim();
	class="cm">// Normalize engine-specific JSON.parse error text (V8 "Unexpected token …
	class="cm">// (0x..)class="st">" / "… in JSON …class="st">" vs JSC/Bun "JSON Parse error: …") so JSON
	class="cm">// type-import class="st">"Module parse failed" snapshots match across runtimes. The
	class="cm">// acorn class="st">"(line:col)" parse errors are engine-independent and left as-is.
	str = str.replace(
		/Module parse failed: (?:JSON Parse error:|Unexpected token class="st">"[^"]*" \(0x|Unexpected \S+ in JSON|Unexpected end of JSON input|Unexpected non-whitespace character after JSON)[\s\S]*?(?=\nYou may need an appropriate loader)/g,
		class="st">"Module parse failed: <JSON parse error>"
	);
	class="cm">// Normalize JSC (Bun) magic-comment parse phrasing to the V8 form: JSC
	class="cm">// quotes the token and appends class="st">"Expected …", V8 does neither.
	str = str.replace(/(Unexpected token) class="st">'([^']*)'\. Expected[^\n]*/g, class="st">"$1 $2");
	str = str.replace(/(Unexpected identifier)\. Expected[^\n]*/g, class="st">"$1");
	class="cm">// Normalize class="st">"Unexpected token" messages — quoting and detail
	class="cm">// format varies across Node.js versions (e.g. with/without quotes,
	class="cm">// hex codes, trailing context).
	str = str.replace(/(Unexpected token) class="st">'([^']*)'$/gm, class="st">"$1 $2");
	str = str.replace(/(Unexpected token[^)]*\))[^\n]*(?:\n['class="st">"])?/g, "$1");
	str = str.replace(/\\/g, class="st">"/");
	return str;
};

/**
 * Serializes an array of error/warning objects into a normalized form