text: /*****************************************************************************
   * Open MCT, Copyright (c) 2014-2016, United States Government
   * as represented by the Administrator of the National Aeronautics and Space
   * Administration. All rights reserved.
   *
   * Open MCT is licensed under the Apache License, Version 2.0 (the
   * "License"); you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   * http://www.apache.org/licenses/LICENSE-2.0.
   *
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   * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
   * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
   * License for the specific language governing permissions and limitations
   * under the License.
   *
   * Open MCT includes source code licensed under additional open source
   * licenses. See the Open Source Licenses file (LICENSES.md) included with
   * this source code distribution or the Licensing information page available
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   *****************************************************************************/
  
  /**
   * MergeModelsSpec. Created by vwoeltje on 11/6/14.
   */
  define(
      ["../../src/elements/PlotAxis"],
      function (PlotAxis) {
  
          describe("A plot axis", function () {
              var testMetadatas,
                  testDefault,
                  axis;
  
              beforeEach(function () {
                  testMetadatas = [
                      {
                          tests: [
                              { key: "t0", name: "T0" },
                              { key: "t1", name: "T1" }
                          ],
                          someKey: "some value"
                      },
                      {
                          tests: [
                              { key: "t0", name: "T0" },
                              { key: "t2", name: "T2" }
                          ]
                      },
                      {
                          tests: [
                              { key: "t3", name: "T3" },
                              { key: "t4", name: "T4" },
                              { key: "t5", name: "T5" },
                              { key: "t6", name: "T6" }
                          ]
                      }
                  ];
                  testDefault = { key: "test", name: "Test" };
                  axis = new PlotAxis("tests", testMetadatas, testDefault);
              });
  
              it("pulls out a list of domain or range options", function () {
                  // Should have filtered out duplicates, etc
                  expect(axis.options).toEqual([
                      { key: "t0", name: "T0" },
                      { key: "t1", name: "T1" },
                      { key: "t2", name: "T2" },
                      { key: "t3", name: "T3" },
                      { key: "t4", name: "T4" },
                      { key: "t5", name: "T5" },
                      { key: "t6", name: "T6" }
                  ]);
              });
  
              it("chooses the first option as a default", function () {
                  expect(axis.active).toEqual({ key: "t0", name: "T0" });
              });
  
              it("falls back to a provided default if no options are present", function () {
                  expect(new PlotAxis("tests", [{}], testDefault).active)
                      .toEqual(testDefault);
              });
  
              it("allows options to be chosen by key", function () {
                  axis.chooseOption("t3");
                  expect(axis.active).toEqual({ key: "t3", name: "T3" });
              });
  
              it("reflects changes to applicable metadata", function () {
                  axis.updateMetadata([testMetadatas[1]]);
                  expect(axis.options).toEqual([
                      { key: "t0", name: "T0" },
                      { key: "t2", name: "T2" }
                  ]);
              });
  
              it("returns the same array instance for unchanged metadata", function () {
                  // ...to avoid triggering extra digest cycles.
                  var oldInstance = axis.options;
                  axis.updateMetadata(testMetadatas);
                  expect(axis.options).toBe(oldInstance);
              });
  
          });
      }
  );
  