describe("ol.geom.Collection", function() {
    var c;
    
    beforeEach(function(){
        c = new ol.geom.Collection([
            new ol.geom.Point(10,20),
            new ol.geom.LineString([
                new ol.geom.Point(47,11),
                new ol.geom.Point(3.14,2.8)
            ])
        ]);
    });
    
    afterEach(function(){
        c = null;
    });
    
    it("constructs instances", function() {
        expect( c ).toBeA( ol.geom.Collection );
    });
    
    it("can construct instances without any components", function() {
        // empty array
        c = new ol.geom.Collection([]);
        expect( c ).toBeA( ol.geom.Collection );
        
        // no argument at all
        c = new ol.geom.Collection();
        expect( c ).toBeA( ol.geom.Collection );
    });
    
    it("inherits from ol.geom.Geometry", function() {
        expect( c ).toBeA( ol.geom.Geometry );
    });
    
    it("has a working getter for components", function() {
        
        var components = c.getComponents();
        
        expect( components ).toBeA( Array );
        expect( components.length ).toBe( 2 );
        expect( components[0] ).toBeA( ol.geom.Point );
        expect( components[1] ).toBeA( ol.geom.LineString );
        
        expect( components[0].getX() + ',' + components[0].getY()).toBe( '10,20' );
        expect( components[1].getVertices()[0].getX() + ',' + components[1].getVertices()[0].getY()).toBe( '47,11' );
        
    });
    
    it("has a working setter for components", function() {
        
        c.setComponents([
            new ol.geom.Point(30,40),
            new ol.geom.LineString([
                new ol.geom.Point(3,9),
                new ol.geom.Point(4,16)
            ])
        ]);
        
        var components = c.getComponents();
        
        expect( components.length ).toBe( 2 );
        expect( components[0] ).toBeA( ol.geom.Point );
        expect( components[1] ).toBeA( ol.geom.LineString );
        
        expect( components[0].getX() + ',' + components[0].getY()).toBe( '30,40' );
        expect( components[1].getVertices()[0].getX() + ',' + components[1].getVertices()[0].getY()).toBe( '3,9' );
        
    });
    
    it("has a method to add components", function() {
        
        c.addComponent(
            new ol.geom.Point(30,40),
            1
        );
        c.addComponent(
            new ol.geom.LineString([
                new ol.geom.Point(5,25),
                new ol.geom.Point(6,36)
            ]),
            0
        );
      
        var components = c.getComponents();
        
        expect( components.length ).toBe( 4 );
        expect( components[0].getVertices()[0].getX() + ',' + components[0].getVertices()[0].getY()).toBe( '5,25' );
        expect( components[1].getX() + ',' + components[1].getY()).toBe( '10,20' );
        expect( components[2].getX() + ',' + components[2].getY()).toBe( '30,40' );
        expect( components[3].getVertices()[0].getX() + ',' + components[3].getVertices()[0].getY()).toBe( '47,11' );
        
    });
    
    it("has a method to remove components", function() {
        c.setComponents([
            new ol.geom.Point(0,10),
            new ol.geom.Point(10,20),
            new ol.geom.Point(20,30),
            new ol.geom.Point(30,40)
        ]);
        
        var p = c.getComponents()[2]; // 20,30;
        
        c.removeComponent( p );
        
        var components = c.getComponents();
        
        expect( components.length ).toBe( 3 );
        expect( components[0].getX() + ',' + components[0].getY()).toBe( '0,10' );
        expect( components[1].getX() + ',' + components[1].getY()).toBe( '10,20' );
        expect( components[2].getX() + ',' + components[2].getY()).toBe( '30,40' );
    });     
});