Point, linestring, and linearring coordinates as Float32Array

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

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+describe('ol.geom.LineString', function() {
+
+  describe('constructor', function() {
+
+    it('creates a linestring from an array', function() {
+      var line = new ol.geom.LineString([[10, 20], [30, 40]]);
+      expect(line).toBeA(ol.geom.LineString);
+    });
+
+    it('throws when given mismatched dimension', function() {
+      expect(function() {
+        var line = new ol.geom.LineString([[10, 20], [30, 40, 50]]);
+      }).toThrow();
+    });
+
+  });
+
+  describe('coordinates', function() {
+
+    it('is a Float32Array', function() {
+      var line = new ol.geom.LineString([[10, 20], [30, 40]]);
+      expect(line.coordinates).toBeA(Float32Array);
+
+      expect(line.coordinates.length).toBe(4);
+      expect(line.coordinates[0]).toBe(10);
+      expect(line.coordinates[1]).toBe(20);
+      expect(line.coordinates[2]).toBe(30);
+      expect(line.coordinates[3]).toBe(40);
+    });
+
+  });
+
+  describe('dimension', function() {
+
+    it('can be 2', function() {
+      var line = new ol.geom.LineString([[10, 20], [30, 40]]);
+      expect(line.dimension).toBe(2);
+    });
+
+    it('can be 3', function() {
+      var line = new ol.geom.LineString([[10, 20, 30], [40, 50, 60]]);
+      expect(line.dimension).toBe(3);
+    });
+
+  });
+
+
+});
+