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gaia/apps/costcontrol/test/unit/mock_config_manager.js

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+/* exported MockConfigManager */
+'use strict';
+
+var MockConfigManager = function(config) {
+  config = config || {};
+
+  Date.prototype.toJSON = function() {
+    return {'__date__': this.toISOString()};
+  };
+  function settingsReviver(k, v) {
+    if (v === null || typeof v !== 'object' || !v.hasOwnProperty('__date__')) {
+      return v;
+    }
+
+    return new Date(v.__date__);
+  }
+
+  function getMockRequiredMessage(mocking, parameter, isAFunction) {
+    var whatIsBeingAccesed = mocking + (isAFunction ? '() is being called' :
+                                                      'is being accessed');
+
+    return 'Please, ' + whatIsBeingAccesed + '. Provide the key `' +
+           parameter + '` in the constructor config object to mock it.';
+  }
+
+  var fakeSettings = config.fakeSettings || {};
+  var fakeConfiguration = config.fakeConfiguration || {};
+  var mCallbacks = {};
+  return {
+    option: function(key, value) {
+      if (value) {
+        fakeSettings[key] = value;
+      }
+      return fakeSettings[key];
+    },
+    requestAll: function(callback) {
+      var self = this;
+      self.requestConfiguration(function(configuration) {
+        self.requestSettings(undefined, function(settings) {
+          callback(configuration, settings);
+        });
+      });
+    },
+    requestConfiguration: function(callback) {
+      callback(fakeConfiguration);
+    },
+    requestSettings: function(iccId, callback) {
+      callback(JSON.parse(JSON.stringify(fakeSettings), settingsReviver));
+    },
+    setOption: function(options, callback) {
+      Object.keys(options).forEach(function (name) {
+        fakeSettings[name] = options[name];
+      });
+      (typeof callback === 'function') && callback();
+    },
+    observe: function(name, callback, avoidInitialCall) {
+      if (typeof mCallbacks[name] !== 'function') {
+        mCallbacks[name] = [];
+      }
+      mCallbacks[name] = callback;
+    },
+    getApplicationMode: function() {
+      assert.isDefined(
+        config.applicationMode,
+        getMockRequiredMessage('getApplicationMode', 'applicationMode', true)
+      );
+      return config.applicationMode;
+    },
+    get configuration() { return config; },
+    mTriggerCallback: function(name, value, settings) {
+      if (typeof mCallbacks[name] === 'function') {
+        if (settings === undefined) {
+          settings = fakeSettings;
+        }
+        mCallbacks[name](value, null, name, settings);
+      }
+    },
+    mRemoveObservers: function() {
+      mCallbacks = {};
+    },
+    setConfig: function(newConfig) {
+      config = newConfig;
+    },
+    supportCustomizeMode: false
+  };
+};