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-rw-r--r--testing/web-platform/tests/common/utils.js98
1 files changed, 98 insertions, 0 deletions
diff --git a/testing/web-platform/tests/common/utils.js b/testing/web-platform/tests/common/utils.js
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+++ b/testing/web-platform/tests/common/utils.js
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+/**
+ * Create an absolute URL from `options` and defaulting unspecified properties to `window.location`.
+ * @param {Object} options - a `Location`-like object
+ * @param {string} options.hostname
+ * @param {string} options.subdomain - prepend subdomain to the hostname
+ * @param {string} options.port
+ * @param {string} options.path
+ * @param {string} options.query
+ * @param {string} options.hash
+ * @returns {string}
+ */
+function make_absolute_url(options) {
+ var loc = window.location;
+ var protocol = get(options, "protocol", loc.protocol);
+ if (protocol[protocol.length - 1] != ":") {
+ protocol += ":";
+ }
+
+ var hostname = get(options, "hostname", loc.hostname);
+
+ var subdomain = get(options, "subdomain");
+ if (subdomain) {
+ hostname = subdomain + "." + hostname;
+ }
+
+ var port = get(options, "port", loc.port)
+ var path = get(options, "path", loc.pathname);
+ var query = get(options, "query", loc.search);
+ var hash = get(options, "hash", loc.hash)
+
+ var url = protocol + "//" + hostname;
+ if (port) {
+ url += ":" + port;
+ }
+
+ if (path[0] != "/") {
+ url += "/";
+ }
+ url += path;
+ if (query) {
+ if (query[0] != "?") {
+ url += "?";
+ }
+ url += query;
+ }
+ if (hash) {
+ if (hash[0] != "#") {
+ url += "#";
+ }
+ url += hash;
+ }
+ return url;
+}
+
+/** @private */
+function get(obj, name, default_val) {
+ if (obj.hasOwnProperty(name)) {
+ return obj[name];
+ }
+ return default_val;
+}
+
+/**
+ * Generate a new UUID.
+ * @returns {string}
+ */
+function token() {
+ var uuid = [to_hex(rand_int(32), 8),
+ to_hex(rand_int(16), 4),
+ to_hex(0x4000 | rand_int(12), 4),
+ to_hex(0x8000 | rand_int(14), 4),
+ to_hex(rand_int(48), 12)].join("-")
+ return uuid;
+}
+
+/** @private */
+function rand_int(bits) {
+ if (bits < 1 || bits > 53) {
+ throw new TypeError();
+ } else {
+ if (bits >= 1 && bits <= 30) {
+ return 0 | ((1 << bits) * Math.random());
+ } else {
+ var high = (0 | ((1 << (bits - 30)) * Math.random())) * (1 << 30);
+ var low = 0 | ((1 << 30) * Math.random());
+ return high + low;
+ }
+ }
+}
+
+/** @private */
+function to_hex(x, length) {
+ var rv = x.toString(16);
+ while (rv.length < length) {
+ rv = "0" + rv;
+ }
+ return rv;
+}