describe("ol.geom.Point", function() {  
    var p2Args,
        p3Args,
        p4Args,
        proj = "EPSG:4326";
        
    var instances = {
        "two arguments <x>,<y> passed": new ol.geom.Point(21, 4),
        "three arguments <x>,<y>,<z> passed": new ol.geom.Point(21, 4, 8),
        "four arguments <x>,<y>,<z>,<projection> passed": new ol.geom.Point(21, 4, 8, proj)
    };
    
    beforeEach(function() {
        proj = ol.projection("EPSG:4326");
        instances = {
            "two arguments <x>,<y> passed": new ol.geom.Point(21, 4),
            "three arguments <x>,<y>,<z> passed": new ol.geom.Point(21, 4, 8),
            "four arguments <x>,<y>,<z>,<projection> passed": new ol.geom.Point(21, 4, 8, proj)
        };
        p2Args = instances['two arguments <x>,<y> passed'];
        p3Args = instances['three arguments <x>,<y>,<z> passed'];
        p4Args = instances['four arguments <x>,<y>,<z>,<projection> passed'];
    });
    
    afterEach(function() {
        p2Args = p3Args = p4Args = null;
        instances = {
            "two arguments <x>,<y> passed": new ol.geom.Point(21, 4),
            "three arguments <x>,<y>,<z> passed": new ol.geom.Point(21, 4, 8),
            "four arguments <x>,<y>,<z>,<projection> passed": new ol.geom.Point(21, 4, 8, proj)
        };
    });
    
    for (instancesDesc in instances) {
        if (instances.hasOwnProperty(instancesDesc)) {
            var instance = instances[instancesDesc];
            
            it("constructs instances (" + instancesDesc + ")", function() {
                expect(instance).toEqual(jasmine.any(ol.geom.Point));
            });
            
            it("constructs instances of ol.geom.Geometry (" + instancesDesc + ")", function() {
                expect(instance).toEqual(jasmine.any(ol.geom.Geometry));
            });
            
            it("has the coordinate accessor methods (" + instancesDesc + ")", function() {
                expect(instance.getX).not.toBeUndefined();
                expect(instance.getY).not.toBeUndefined();
                expect(instance.getZ).not.toBeUndefined();
                expect(instance.setX).not.toBeUndefined();
                expect(instance.setY).not.toBeUndefined();
                expect(instance.setZ).not.toBeUndefined();
            });
            
            it("has the projection accessor methods (" + instancesDesc + ")", function() {
                expect(instance.getProjection).not.toBeUndefined();
                expect(instance.setProjection).not.toBeUndefined();
            });
            
        }
    }
    
    it("has functional getters (two arguments <x>,<y> passed)", function(){
        
        expect(p2Args.getX()).toBe(21);
        expect(p2Args.getY()).toBe(4);
        expect(p2Args.getZ()).toBeUndefined();
        expect(p2Args.getProjection()).toBeNull();
    });
    
    it("has functional getters (three arguments <x>,<y>,<z> passed)", function(){
        expect(p3Args.getX()).toBe(21);
        expect(p3Args.getY()).toBe(4);
        expect(p3Args.getZ()).not.toBeUndefined();
        expect(p3Args.getZ()).toBe(8);
        expect(p3Args.getProjection()).toBeNull();
    });
    
    it("has functional getters (four arguments <x>,<y>,<z>,<projection> passed)", function(){
        expect(p4Args.getX()).toBe(21);
        expect(p4Args.getY()).toBe(4);
        expect(p4Args.getZ()).toBe(8);
        expect(p4Args.getProjection()).not.toBeNull();
        expect(p4Args.getProjection()).toBeA(ol.Projection);
    });
    
    it("can be transformed", function(){
        // save for later comparison
        var old = {
            x: p4Args.getX().toFixed(3),
            y: p4Args.getY().toFixed(3)
        };
        // with code only
        var transformedPoint = p4Args.transform("EPSG:3857");
        
        // is it still an instance of ol.geom.Point?
        expect(transformedPoint).toBeA(ol.geom.Point);
        // coordinates OK?
        expect(transformedPoint.getX().toFixed(3)).toBe("2337709.306");
        expect(transformedPoint.getY().toFixed(3)).toBe("445640.110");
        
        // with an ol.Projection
        var retransformedPoint = transformedPoint.transform(new ol.Projection("EPSG:4326"));
        expect(retransformedPoint).toBeA(ol.geom.Point);
        
        // coordinates shopulkd be the originally configured
        expect(retransformedPoint.getX().toFixed(3)).toBe(old.x);
        expect(retransformedPoint.getY().toFixed(3)).toBe(old.y);
    });
    
    it("throws an exception when you try to transform without a source projection", function(){
        
        expect(function() {
            p2Args.transform("EPSG:3857");
        }).toThrow();
        
        expect(function() {
            p3Args.transform("EPSG:3857");
        }).toThrow();
        
    });

});