Add getBounds to geometry

test/spec/ol/geom/multilinestring.test.js

@@ -0,0 +1,69 @@
+describe('ol.geom.MultiLineString', function() {
+
+  describe('constructor', function() {
+
+    it('creates a multi-linestring from an array', function() {
+      var multi = new ol.geom.MultiLineString([
+          [[10, 20], [30, 40]],
+          [[20, 30], [40, 50]]]);
+      expect(multi).toBeA(ol.geom.MultiLineString);
+    });
+
+    it('throws when given with insufficient dimensions', function() {
+      expect(function() {
+        var multi = new ol.geom.MultiPoint([1]);
+      }).toThrow();
+    });
+
+  });
+
+  describe('#components', function() {
+
+    it('is an array of linestrings', function() {
+      var multi = new ol.geom.MultiLineString([
+          [[10, 20], [30, 40]],
+          [[20, 30], [40, 50]]]);
+
+      expect(multi.components.length).toBe(2);
+      expect(multi.components[0]).toBeA(ol.geom.LineString);
+      expect(multi.components[1]).toBeA(ol.geom.LineString);
+
+    });
+
+  });
+
+  describe('#dimension', function() {
+
+    it('can be 2', function() {
+      var multi = new ol.geom.MultiLineString([
+          [[10, 20], [30, 40]],
+          [[20, 30], [40, 50]]]);
+      expect(multi.dimension).toBe(2);
+    });
+
+    it('can be 3', function() {
+      var multi = new ol.geom.MultiLineString([
+          [[10, 20, 30], [30, 40, 50]],
+          [[20, 30, 40], [40, 50, 60]]]);
+      expect(multi.dimension).toBe(3);
+    });
+
+  });
+
+  describe('#getBounds()', function() {
+
+    it('returns the bounding extent', function() {
+      var multi = new ol.geom.MultiLineString([
+          [[10, 20], [30, 40]],
+          [[20, 30], [40, 50]]]);
+      var bounds = multi.getBounds();
+      expect(bounds.minX).toBe(10);
+      expect(bounds.minY).toBe(20);
+      expect(bounds.maxX).toBe(40);
+      expect(bounds.maxY).toBe(50);
+    });
+
+  });
+
+});
+