Refactor ol.geom.LineString

test/spec/ol/geom/linestring.test.js

@@ -0,0 +1,156 @@
+goog.provide('ol.test.geom.LineString');
+
+
+describe('ol.geom.LineString', function() {
+
+  describe('construct empty', function() {
+
+    var lineString;
+    beforeEach(function() {
+      lineString = new ol.geom.LineString([]);
+    });
+
+    it('defaults to layout XY', function() {
+      expect(lineString.getLayout()).to.be(ol.geom.Layout.XY);
+    });
+
+    it('has empty coordinates', function() {
+      expect(lineString.getCoordinates()).to.be.empty();
+    });
+
+    it('has an empty extent', function() {
+      expect(ol.extent.isEmpty(lineString.getExtent())).to.be(true);
+    });
+
+    it('has empty flat coordinates', function() {
+      expect(lineString.getFlatCoordinates()).to.be.empty();
+    });
+
+    it('has stride the expected stride', function() {
+      expect(lineString.getStride()).to.be(2);
+    });
+
+  });
+
+  describe('construct with 2D coordinates', function() {
+
+    var lineString;
+    beforeEach(function() {
+      lineString = new ol.geom.LineString([[1, 2], [3, 4]]);
+    });
+
+    it('has the expected layout', function() {
+      expect(lineString.getLayout()).to.be(ol.geom.Layout.XY);
+    });
+
+    it('has the expected coordinates', function() {
+      expect(lineString.getCoordinates()).to.eql([[1, 2], [3, 4]]);
+    });
+
+    it('has the expected extent', function() {
+      expect(lineString.getExtent()).to.eql([1, 2, 3, 4]);
+    });
+
+    it('has the expected flat coordinates', function() {
+      expect(lineString.getFlatCoordinates()).to.eql([1, 2, 3, 4]);
+    });
+
+    it('has stride the expected stride', function() {
+      expect(lineString.getStride()).to.be(2);
+    });
+
+  });
+
+  describe('construct with 3D coordinates', function() {
+
+    var lineString;
+    beforeEach(function() {
+      lineString = new ol.geom.LineString([[1, 2, 3], [4, 5, 6]]);
+    });
+
+    it('has the expected layout', function() {
+      expect(lineString.getLayout()).to.be(ol.geom.Layout.XYZ);
+    });
+
+    it('has the expected coordinates', function() {
+      expect(lineString.getCoordinates()).to.eql([[1, 2, 3], [4, 5, 6]]);
+    });
+
+    it('has the expected extent', function() {
+      expect(lineString.getExtent()).to.eql([1, 2, 4, 5]);
+    });
+
+    it('has the expected flat coordinates', function() {
+      expect(lineString.getFlatCoordinates()).to.eql([1, 2, 3, 4, 5, 6]);
+    });
+
+    it('has the expected stride', function() {
+      expect(lineString.getStride()).to.be(3);
+    });
+
+  });
+
+  describe('construct with 3D coordinates and layout XYM', function() {
+
+    var lineString;
+    beforeEach(function() {
+      lineString = new ol.geom.LineString(
+          [[1, 2, 3], [4, 5, 6]], ol.geom.Layout.XYM);
+    });
+
+    it('has the expected layout', function() {
+      expect(lineString.getLayout()).to.be(ol.geom.Layout.XYM);
+    });
+
+    it('has the expected coordinates', function() {
+      expect(lineString.getCoordinates()).to.eql([[1, 2, 3], [4, 5, 6]]);
+    });
+
+    it('has the expected extent', function() {
+      expect(lineString.getExtent()).to.eql([1, 2, 4, 5]);
+    });
+
+    it('has the expected flat coordinates', function() {
+      expect(lineString.getFlatCoordinates()).to.eql([1, 2, 3, 4, 5, 6]);
+    });
+
+    it('has the expected stride', function() {
+      expect(lineString.getStride()).to.be(3);
+    });
+
+  });
+
+  describe('construct with 4D coordinates', function() {
+
+    var lineString;
+    beforeEach(function() {
+      lineString = new ol.geom.LineString([[1, 2, 3, 4], [5, 6, 7, 8]]);
+    });
+
+    it('has the expected layout', function() {
+      expect(lineString.getLayout()).to.be(ol.geom.Layout.XYZM);
+    });
+
+    it('has the expected coordinates', function() {
+      expect(lineString.getCoordinates()).to.eql([[1, 2, 3, 4], [5, 6, 7, 8]]);
+    });
+
+    it('has the expected extent', function() {
+      expect(lineString.getExtent()).to.eql([1, 2, 5, 6]);
+    });
+
+    it('has the expected flat coordinates', function() {
+      expect(lineString.getFlatCoordinates()).to.eql([1, 2, 3, 4, 5, 6, 7, 8]);
+    });
+
+    it('has the expected stride', function() {
+      expect(lineString.getStride()).to.be(4);
+    });
+
+  });
+
+});
+
+
+goog.require('ol.extent');
+goog.require('ol.geom.LineString');