fixing the unit tests for annotations and adding them back.

Author: MFed

test/jasmine/tests/annotations_test.js

@@ -0,0 +1,30 @@
+require('@src/plotly');
+var Annotations = require('@src/components/annotations');
+
+describe('Test annotations', function() {
+  'use strict';
+
+  describe('supplyLayoutDefaults', function() {
+    it('should default to not use absolute arrow tail', function() {
+      var annotationDefaults = {};
+      annotationDefaults._has = function() { return false };
+
+      Annotations.supplyLayoutDefaults({ annotations: [{ showarrow: true, arrowhead: 2}] }, annotationDefaults);
+
+      expect(annotationDefaults.annotations[0].absolutetail).toBe(false);
+    });
+
+    it('should convert ax/ay date coordinates to milliseconds if absolutetail is true', function() {
+      var annotationOut = { xaxis: { type: 'date', range: ['2000-01-01', '2016-01-01'] }};
+      annotationOut._has = function() { return false };
+
+      var annotationIn = {
+        annotations: [{ showarrow: true, absolutetail: true, x: '2008-07-01', ax: '2004-07-01', y: 0, ay: 50}]
+      };
+
+      Annotations.supplyLayoutDefaults(annotationIn, annotationOut);
+
+      expect(annotationIn.annotations[0].ax).toEqual(1088654400000);
+    });
+  });
+});