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gaia/shared/test/unit/mocks/mock_l10n.js

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+/* globals assert */
+
+(function(exports) {
+  'use strict';
+
+  exports.MockL10n = {
+
+    readyState: 'complete',
+
+    get: stringify,
+    _stringify: stringify,
+
+    formatValue: function(id, args) {
+      return Promise.resolve(stringify(id, args || ''));
+    },
+
+    translateFragment: function() {},
+
+    // XXX Remove in https://bugzil.la/1020137
+    localize: function(element, id, args) {
+      if (id) {
+        element.setAttribute('data-l10n-id', id);
+      } else {
+        element.removeAttribute('data-l10n-id');
+        element.removeAttribute('data-l10n-args');
+        element.textContent = '';
+      }
+      if (args) {
+        element.setAttribute('data-l10n-args', JSON.stringify(args));
+      } else {
+        element.removeAttribute('data-l10n-args');
+      }
+      element.textContent = id + (args ? JSON.stringify(args) : '');
+    },
+
+    setAttributes: function(element, id, args) {
+      element.setAttribute('data-l10n-id', id);
+      if (args) {
+        element.setAttribute('data-l10n-args', JSON.stringify(args));
+      }
+    },
+
+    getAttributes: function(element) {
+      return {
+        id: element.getAttribute('data-l10n-id'),
+        args: JSON.parse(element.getAttribute('data-l10n-args'))
+      };
+    },
+
+    ready: function(handler) {
+      setTimeout(handler);
+    },
+
+    once: function(handler) {
+      setTimeout(handler);
+    },
+
+    language: {
+      code: 'en-US',
+      direction: 'ltr'
+    },
+
+    qps: {
+      'fr-x-psaccent': {
+        id: 'fr-x-psaccent',
+        name: 'Pseudo English',
+        translate: stringify
+      }
+    },
+
+    DateTimeFormat: function() {
+      // Support navigator.mozL10n.DateTimeFormat() without new the object.
+      if (!this.localeFormat) {
+        var localeFormat = function mockLocaleFormat(time, strFormat) {
+          return '' + time;
+        };
+        return {
+          localeFormat: localeFormat
+        };
+      }
+    }
+  };
+
+  // Defining methods on the prototype allows to spy on them in tests
+  exports.MockL10n.DateTimeFormat.prototype = {
+    localeFormat: stringify,
+    fromNow: stringify,
+    relativeParts: stringify
+  };
+
+  /**
+   * Helper used to check that an element has been properly localized. This
+   * supports all the patterns described on MDN for localization best
+   * practices:
+   * - If 'expectedL10n' is a string it will check that the node's
+   *   'data-l10n-id' attribute is set and matches that id.
+   * - If 'expectedL10n' is an object then if it as an id and an args field it
+   *   will check if the node's 'data-l10n-id' and 'data-l10n-args' fields
+   *   match them.
+   * - If 'expectedL10n' is an object with a 'raw' field it will check that the
+   *   node doesn't have a 'data-l10n-id' attribute and its 'textContent' field
+   *   matches the'raw' field.
+   * - If 'expectedL10n' is an object with am 'html' field it will check that
+   *   the node doesn't have a 'data-l10n-id' attribute and its 'innerHTML'
+   *   field matches the'html' field.
+   */
+  exports.l10nAssert = function(node, expectedL10n) {
+    if (typeof expectedL10n === 'string') {
+      assert.isTrue(node.hasAttribute('data-l10n-id'));
+      assert.equal(node.getAttribute('data-l10n-id'), expectedL10n);
+    } else if (expectedL10n.raw) {
+      assert.isFalse(node.hasAttribute('data-l10n-id'));
+      assert.equal(node.textContent, expectedL10n.raw);
+    } else if (expectedL10n.html) {
+      assert.isFalse(node.hasAttribute('data-l10n-id'));
+      assert.equal(node.innerHTML, expectedL10n.html);
+    } else if (expectedL10n.id) {
+      assert.isTrue(node.hasAttribute('data-l10n-id'));
+      assert.equal(node.getAttribute('data-l10n-id'), expectedL10n.id); 
+      if (expectedL10n.args) {
+        assert.isTrue(node.hasAttribute('data-l10n-args'));
+        assert.deepEqual(
+          JSON.parse(node.getAttribute('data-l10n-args')),
+          expectedL10n.args
+        );
+      }
+    }
+  };
+
+  function stringify() {
+    return Array.prototype.reduce.call(arguments, function(prev, cur) {
+      if (typeof cur === 'object') {
+        cur = JSON.stringify(cur);
+      }
+      return prev + cur;
+    }, '');
+  }
+
+}(this));