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(function() {
var subTestKeyPattern = null;
var match;
var collectKeys = false;
var collectCounts = false;
var keys = {};
var exclude = false;
if (location.search) {
match = /(?:^\?|&)(include|exclude)=([^&]+)?/.exec(location.search);
if (match) {
subTestKeyPattern = new RegExp(`^${match[2]}$`);
if (match[1] === 'exclude') {
exclude = true;
}
}
// Below is utility code to generate <meta> for copy/paste into tests.
// Sample usage:
// test.html?get-keys
match = /(?:^\?|&)get-keys(&get-counts)?(?:&|$)/.exec(location.search);
if (match) {
collectKeys = true;
if (match[1]) {
collectCounts = true;
}
add_completion_callback(() => {
var metas = [];
var template = '<meta name="variant" content="?include=%s">';
if (collectCounts) {
template += ' <!--%s-->';
}
for (var key in keys) {
var meta = template.replace("%s", key);
if (collectCounts) {
meta = meta.replace("%s", keys[key]);
}
metas.push(meta);
}
var pre = document.createElement('pre');
pre.textContent = metas.join('\n') + '\n';
document.body.insertBefore(pre, document.body.firstChild);
document.getSelection().selectAllChildren(pre);
});
}
}
/**
* Check if `key` is in the subset specified in the URL.
* @param {string} key
* @returns {boolean}
*/
function shouldRunSubTest(key) {
if (key && subTestKeyPattern) {
var found = subTestKeyPattern.test(key);
if (exclude) {
return !found;
}
return found;
}
return true;
}
/**
* Only test a subset of tests with `?include=Foo` or `?exclude=Foo` in the URL.
* Can be used together with `<meta name="variant" content="...">`
* Sample usage:
* for (const test of tests) {
* subsetTestByKey("Foo", async_test, test.fn, test.name);
* }
*/
function subsetTestByKey(key, testFunc, ...args) {
if (collectKeys) {
if (collectCounts && key in keys) {
keys[key]++;
} else {
keys[key] = 1;
}
}
if (shouldRunSubTest(key)) {
return testFunc(...args);
}
return null;
}
self.shouldRunSubTest = shouldRunSubTest;
self.subsetTestByKey = subsetTestByKey;
})();