Add more tests for ol.coordinate.

test/spec/ol/coordinate.test.js

@@ -106,6 +106,79 @@ describe('ol.coordinate', function() {
         });
   });
 
+  describe('#format', function() {
+    it('can deal with undefined coordinate', function() {
+      expect(ol.coordinate.format()).to.be('');
+    });
+    it('formats a coordinate into a template (default precision is 0)',
+        function() {
+          var coord = [7.85, 47.983333];
+          var template = 'Coordinate is ({x}|{y}).';
+          var got = ol.coordinate.format(coord, template);
+          var expected = 'Coordinate is (8|48).';
+          expect(got).to.be(expected);
+        });
+    it('formats a coordinate into a template and respects precision)',
+        function() {
+          var coord = [7.85, 47.983333];
+          var template = 'Coordinate is ({x}|{y}).';
+          var got = ol.coordinate.format(coord, template, 2);
+          var expected = 'Coordinate is (7.85|47.98).';
+          expect(got).to.be(expected);
+        });
+  });
+
+  describe('#rotate', function() {
+    it('can rotate point in place', function() {
+      var coord = [7.85, 47.983333];
+      var rotateRadians = Math.PI / 2; // 90 degrees
+      ol.coordinate.rotate(coord, rotateRadians);
+      expect(coord[0].toFixed(6)).to.eql('-47.983333');
+      expect(coord[1].toFixed(6)).to.eql('7.850000');
+    });
+    it('returns the rotated point', function() {
+      var coord = [7.85, 47.983333];
+      var rotateRadians = Math.PI / 2; // 90 degrees
+      var rotated = ol.coordinate.rotate(coord, rotateRadians);
+      expect(rotated[0].toFixed(7)).to.eql('-47.9833330');
+      expect(rotated[1].toFixed(7)).to.eql('7.8500000');
+    });
+  });
+
+  describe('#scale', function() {
+    it('can scale point in place', function() {
+      var coord = [7.85, 47.983333];
+      var scale = 1.2;
+      ol.coordinate.scale(coord, scale);
+      expect(coord[0].toFixed(7)).to.eql('9.4200000');
+      expect(coord[1].toFixed(7)).to.eql('57.5799996');
+    });
+    it('returns the scaled point', function() {
+      var coord = [7.85, 47.983333];
+      var scale = 1.2;
+      var scaledCoord = ol.coordinate.scale(coord, scale);
+      expect(scaledCoord[0].toFixed(7)).to.eql('9.4200000');
+      expect(scaledCoord[1].toFixed(7)).to.eql('57.5799996');
+    });
+  });
+
+  describe('#sub', function() {
+    it('can subtract from point in place', function() {
+      var coord = [47, 11];
+      var delta = [1, -1];
+      ol.coordinate.sub(coord, delta);
+      expect(coord[0]).to.eql(46);
+      expect(coord[1]).to.eql(12);
+    });
+    it('can subtract from point in place', function() {
+      var coord = [47, 11];
+      var delta = [1, -1];
+      var subtracted = ol.coordinate.sub(coord, delta);
+      expect(subtracted[0]).to.eql(46);
+      expect(subtracted[1]).to.eql(12);
+    });
+  });
+
   describe('#squaredDistanceToSegment', function() {
     it('can handle points where the foot of the perpendicular is closest',
         function() {
@@ -124,6 +197,53 @@ describe('ol.coordinate', function() {
 
   });
 
+  describe('#toStringHDMS', function() {
+    it('returns the empty string on undefined input', function() {
+      var got = ol.coordinate.toStringHDMS();
+      var expected = '';
+      expect(got).to.be(expected);
+    });
+    it('formats a coord as expected', function() {
+      var coord = [7.85, 47.983333];
+      var got = ol.coordinate.toStringHDMS(coord);
+      var expected = '47° 59′ 0″ N 7° 51′ 0″ E';
+      expect(got).to.be(expected);
+    });
+  });
+
+  describe('#toStringXY', function() {
+    it('formats with zero fractional digits as default', function() {
+      var coord = [7.85, 47.983333];
+      var got = ol.coordinate.toStringXY(coord);
+      var expected = '8, 48';
+      expect(got).to.be(expected);
+    });
+    it('formats with given fractional digits, if passed', function() {
+      var coord = [7.85, 47.983333];
+      var got = ol.coordinate.toStringXY(coord, 2);
+      var expected = '7.85, 47.98';
+      expect(got).to.be(expected);
+    });
+  });
+
+  describe('#fromProjectedArray', function() {
+    it('returns an inverted coord for "n" or "s"', function() {
+      var northCoord = ol.coordinate.fromProjectedArray([1, 2], 'n');
+      var southCoord = ol.coordinate.fromProjectedArray([1, 2], 's');
+      expect(northCoord).to.eql([2, 1]);
+      expect(southCoord).to.eql([2, 1]);
+    });
+    it('returns an unchanged coord for any other "axis"', function() {
+      var eastCoord = ol.coordinate.fromProjectedArray([1, 2], 'e');
+      var westCoord = ol.coordinate.fromProjectedArray([1, 2], 'w');
+      var bogusCoord = ol.coordinate.fromProjectedArray([1, 2], 'q');
+      var unchangedCoord = ol.coordinate.fromProjectedArray([1, 2], '');
+      expect(eastCoord).to.eql([1, 2]);
+      expect(westCoord).to.eql([1, 2]);
+      expect(bogusCoord).to.eql([1, 2]);
+      expect(unchangedCoord).to.eql([1, 2]);
+    });
+  });
 });
 
 goog.require('ol.coordinate');