Import wpt@9c292953722dee25858a667417d2502ed418f235

third_party/WebKit/LayoutTests/imported/wpt/clear-site-data/support/test_utils.js

Index: third_party/WebKit/LayoutTests/imported/wpt/clear-site-data/support/test_utils.js
diff --git a/third_party/WebKit/LayoutTests/imported/wpt/clear-site-data/support/test_utils.js b/third_party/WebKit/LayoutTests/imported/wpt/clear-site-data/support/test_utils.js
new file mode 100644
index 0000000000000000000000000000000000000000..6aff373f23a46d1887689618104c86c144cef108
--- /dev/null
+++ b/third_party/WebKit/LayoutTests/imported/wpt/clear-site-data/support/test_utils.js
@@ -0,0 +1,89 @@
+var TestUtils = (function() {
+  function randomString() {
+    var result = "";
+    for (var i = 0; i < 5; i++)
+        result += String.fromCharCode(97 + Math.floor(Math.random() * 26));
+    return result;
+  };
+
+  /**
+   * Representation of one datatype.
+   * @typedef Datatype
+   * @type{object}
+   * @property{string} name Name of the datatype.
+   * @method{function():Void} add A function to add an instance of the datatype.
+   * @method{function():boolean} isEmpty A function that tests whether
+   *     the datatype's storage backend is empty.
+   */
+  var Datatype;
+
+  var TestUtils = {};
+
+  /**
+   * All datatypes supported by Clear-Site-Data.
+   * @param{Array.<Datatype>}
+   */
+  TestUtils.DATATYPES = [
+    {
+      "name": "cookies",
+      "add": function() {
+        return new Promise(function(resolve, reject) {
+          document.cookie = randomString() + "=" + randomString();
+          resolve();
+        });
+      },
+      "isEmpty": function() {
+        return new Promise(function(resolve, reject) {
+          resolve(!document.cookie);
+        });
+      }
+    },
+    {
+      "name": "storage",
+      "add": function() {
+        return new Promise(function(resolve, reject) {
+          localStorage.setItem(randomString(), randomString());
+          resolve();
+        });
+      },
+      "isEmpty": function() {
+        return new Promise(function(resolve, reject) {
+          resolve(!localStorage.length);
+        });
+      }
+    }
+  ];
+
+  /**
+   * All possible combinations of datatypes.
+   * @property {Array.<Array.<Datatype>>}
+   */
+  TestUtils.COMBINATIONS = (function() {
+    var combinations = [];
+    for (var mask = 0; mask < (1 << TestUtils.DATATYPES.length); mask++) {
+      var combination = [];
+
+      for (var datatype = 0;
+           datatype < TestUtils.DATATYPES.length; datatype++) {
+        if (mask & (1 << datatype))
+          combination.push(TestUtils.DATATYPES[datatype]);
+      }
+
+      combinations.push(combination);
+    }
+    return combinations;
+  })();
+
+  /**
+   * Get the support server URL that returns a Clear-Site-Data header
+   * to clear |datatypes|.
+   * @param{Array.<Datatype>} datatypes The list of datatypes to be deleted.
+   * @return string The URL to be queried.
+   */
+  TestUtils.getClearSiteDataUrl = function(datatypes) {
+    names = datatypes.map(function(e) { return e.name });
+    return "support/echo-clear-site-data.py?" + names.join("&");
+  }
+
+  return TestUtils;
+})();