Update utils.test.js

Author: Beakerboy

test/utils.test.js

@@ -47,7 +47,7 @@ test('Test joining 2 ways', () => {
   expect(result.outerHTML).toBe(way3);
 });
 
-test('Test combining 2 ways', () => {
+test('Test combining 2 ways 1->2', () => {
   var way1 = '<way id="1"><nd ref="1"/><nd ref="2"/><nd ref="3"/></way>';
   var way2 = '<way id="2"><nd ref="3"/><nd ref="4"/><nd ref="1"/></way>';
   var way3 = '<way id="1"><nd ref="1"/><nd ref="2"/><nd ref="3"/><nd ref="4"/><nd ref="1"/></way>';
@@ -60,6 +60,19 @@ test('Test combining 2 ways', () => {
   expect(result[0].outerHTML).toBe(way3);
 });
 
+test('Test combining 2 ways 2->1', () => {
+  var way2 = '<way id="1"><nd ref="1"/><nd ref="2"/><nd ref="3"/></way>';
+  var way1 = '<way id="2"><nd ref="3"/><nd ref="4"/><nd ref="1"/></way>';
+  var way3 = '<way id="1"><nd ref="1"/><nd ref="2"/><nd ref="3"/><nd ref="4"/><nd ref="1"/></way>';
+  let parser = new window.DOMParser();
+  let xml1 = parser.parseFromString(way1, 'text/xml').getElementsByTagName('way')[0];
+  let xml2 = parser.parseFromString(way2, 'text/xml').getElementsByTagName('way')[0];
+  let result = BuildingShapeUtils.combineWays([xml1, xml2]);
+  expect(result.length).toBe(1);
+  let expected = parser.parseFromString(way3, 'text/xml');
+  expect(result[0].outerHTML).toBe(way3);
+});
+
 test('Test combining 2 unaligned ways', () => {
   var way1 = '<way id="1"><nd ref="1"/><nd ref="2"/><nd ref="3"/></way>';
   var way2 = '<way id="2"><nd ref="1"/><nd ref="4"/><nd ref="3"/></way>';