text: 
  
  goog.require('ol.geom.flat.reverse');
  
  
  describe('ol.geom.flat.reverse', function() {
  
    describe('ol.geom.flat.reverse.coordinates', function() {
  
      describe('with a stride of 2', function() {
  
        it('can reverse empty flat coordinates', function() {
          var flatCoordinates = [];
          ol.geom.flat.reverse.coordinates(
              flatCoordinates, 0, flatCoordinates.length, 2);
          expect(flatCoordinates).to.be.empty();
        });
  
        it('can reverse one flat coordinates', function() {
          var flatCoordinates = [1, 2];
          ol.geom.flat.reverse.coordinates(
              flatCoordinates, 0, flatCoordinates.length, 2);
          expect(flatCoordinates).to.eql([1, 2]);
        });
  
        it('can reverse two flat coordinates', function() {
          var flatCoordinates = [1, 2, 3, 4];
          ol.geom.flat.reverse.coordinates(
              flatCoordinates, 0, flatCoordinates.length, 2);
          expect(flatCoordinates).to.eql([3, 4, 1, 2]);
        });
  
        it('can reverse three flat coordinates', function() {
          var flatCoordinates = [1, 2, 3, 4, 5, 6];
          ol.geom.flat.reverse.coordinates(
              flatCoordinates, 0, flatCoordinates.length, 2);
          expect(flatCoordinates).to.eql([5, 6, 3, 4, 1, 2]);
        });
  
        it('can reverse four flat coordinates', function() {
          var flatCoordinates = [1, 2, 3, 4, 5, 6, 7, 8];
          ol.geom.flat.reverse.coordinates(
              flatCoordinates, 0, flatCoordinates.length, 2);
          expect(flatCoordinates).to.eql([7, 8, 5, 6, 3, 4, 1, 2]);
        });
  
      });
  
      describe('with a stride of 3', function() {
  
        it('can reverse empty flat coordinates', function() {
          var flatCoordinates = [];
          ol.geom.flat.reverse.coordinates(
              flatCoordinates, 0, flatCoordinates.length, 3);
          expect(flatCoordinates).to.be.empty();
        });
  
        it('can reverse one flat coordinates', function() {
          var flatCoordinates = [1, 2, 3];
          ol.geom.flat.reverse.coordinates(
              flatCoordinates, 0, flatCoordinates.length, 3);
          expect(flatCoordinates).to.eql([1, 2, 3]);
        });
  
        it('can reverse two flat coordinates', function() {
          var flatCoordinates = [1, 2, 3, 4, 5, 6];
          ol.geom.flat.reverse.coordinates(
              flatCoordinates, 0, flatCoordinates.length, 3);
          expect(flatCoordinates).to.eql([4, 5, 6, 1, 2, 3]);
        });
  
        it('can reverse three flat coordinates', function() {
          var flatCoordinates = [1, 2, 3, 4, 5, 6, 7, 8, 9];
          ol.geom.flat.reverse.coordinates(
              flatCoordinates, 0, flatCoordinates.length, 3);
          expect(flatCoordinates).to.eql([7, 8, 9, 4, 5, 6, 1, 2, 3]);
        });
  
        it('can reverse four flat coordinates', function() {
          var flatCoordinates = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12];
          ol.geom.flat.reverse.coordinates(
              flatCoordinates, 0, flatCoordinates.length, 3);
          expect(flatCoordinates).to.eql([10, 11, 12, 7, 8, 9, 4, 5, 6, 1, 2, 3]);
        });
  
      });
  
      describe('with a stride of 4', function() {
  
        it('can reverse empty flat coordinates', function() {
          var flatCoordinates = [];
          ol.geom.flat.reverse.coordinates(
              flatCoordinates, 0, flatCoordinates.length, 4);
          expect(flatCoordinates).to.be.empty();
        });
  
        it('can reverse one flat coordinates', function() {
          var flatCoordinates = [1, 2, 3, 4];
          ol.geom.flat.reverse.coordinates(
              flatCoordinates, 0, flatCoordinates.length, 4);
          expect(flatCoordinates).to.eql([1, 2, 3, 4]);
        });
  
        it('can reverse two flat coordinates', function() {
          var flatCoordinates = [1, 2, 3, 4, 5, 6, 7, 8];
          ol.geom.flat.reverse.coordinates(
              flatCoordinates, 0, flatCoordinates.length, 4);
          expect(flatCoordinates).to.eql([5, 6, 7, 8, 1, 2, 3, 4]);
        });
  
        it('can reverse three flat coordinates', function() {
          var flatCoordinates = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12];
          ol.geom.flat.reverse.coordinates(
              flatCoordinates, 0, flatCoordinates.length, 4);
          expect(flatCoordinates).to.eql([9, 10, 11, 12, 5, 6, 7, 8, 1, 2, 3, 4]);
        });
  
        it('can reverse four flat coordinates', function() {
          var flatCoordinates =
              [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16];
          ol.geom.flat.reverse.coordinates(
              flatCoordinates, 0, flatCoordinates.length, 4);
          expect(flatCoordinates).to.eql(
              [13, 14, 15, 16, 9, 10, 11, 12, 5, 6, 7, 8, 1, 2, 3, 4]);
        });
  
      });
  
    });
  
  });
  