Initial commit

2020-06-13 18:34:34 +08:00
commit 52aaa9f15d
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+var Polygon = require('../../../../src/geo/geometry-models/polygon');
+
+describe('src/geo/geometry-models/polygon', function () {
+  beforeEach(function () {
+    this.polygon = new Polygon(null, {
+      latlngs: [
+        [-1, 1], [1, 2], [3, 4]
+      ]
+    });
+  });
+
+  describe('.toGeoJSON', function () {
+    it('should generate the GeoJSON correctly', function () {
+      expect(this.polygon.toGeoJSON()).toEqual({
+        type: 'Polygon',
+        coordinates: [
+          [ [ 1, -1 ], [ 2, 1 ], [ 4, 3 ], [ 1, -1 ] ]
+        ]
+      });
+    });
+  });
+
+  describe('.setCoordinatesFromGeoJSON', function () {
+    beforeEach(function () {
+      this.changeCallback = jasmine.createSpy('changeCallback');
+      this.polygon.on('change', this.changeCallback);
+    });
+
+    describe('when given a GeoJSON with the same coordinates', function () {
+      beforeEach(function () {
+        var newAndExpectedGeoJSON = this.polygon.toGeoJSON();
+        this.polygon.setCoordinatesFromGeoJSON(newAndExpectedGeoJSON);
+      });
+
+      it('should NOT trigger a "change" event', function () {
+        expect(this.changeCallback).not.toHaveBeenCalled();
+      });
+    });
+
+    describe('when given a GeoJSON with different coordinates', function () {
+      beforeEach(function () {
+        var newAndExpectedGeoJSON = {
+          type: 'Polygon',
+          coordinates: [
+            [ [ 0, 0 ], [ 10, 10 ], [ 20, 20 ], [ 0, 0 ] ]
+          ]
+        };
+        this.polygon.setCoordinatesFromGeoJSON(newAndExpectedGeoJSON);
+        expect(this.polygon.toGeoJSON()).toEqual(newAndExpectedGeoJSON);
+      });
+
+      it('should trigger a "change" event', function () {
+        expect(this.changeCallback).toHaveBeenCalled();
+      });
+
+      it('should update the coordinates', function () {
+        expect(this.polygon.toGeoJSON()).toEqual({
+          type: 'Polygon',
+          coordinates: [
+            [ [ 0, 0 ], [ 10, 10 ], [ 20, 20 ], [ 0, 0 ] ]
+          ]
+        });
+      });
+    });
+  });
+});