136 lines
4.1 KiB
JavaScript
136 lines
4.1 KiB
JavaScript
describe("ol.geom.Collection", function() {
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var c;
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beforeEach(function(){
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c = new ol.geom.Collection([
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new ol.geom.Point(10,20),
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new ol.geom.LineString([
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new ol.geom.Point(47,11),
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new ol.geom.Point(3.14,2.8)
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])
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]);
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});
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afterEach(function(){
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c = null;
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});
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it("constructs instances", function() {
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expect( c ).toBeA( ol.geom.Collection );
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});
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it("can construct instances without any components", function() {
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// empty array
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c = new ol.geom.Collection([]);
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expect( c ).toBeA( ol.geom.Collection );
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// no argument at all
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c = new ol.geom.Collection();
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expect( c ).toBeA( ol.geom.Collection );
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});
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it("cannot construct instances when passed illegal components", function() {
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// collection cannot contain collections
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expect(function(){
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c = new ol.geom.Collection([
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new ol.geom.Collection()
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]);
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}).toThrow();
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});
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it("inherits from ol.geom.Geometry", function() {
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expect( c ).toBeA( ol.geom.Geometry );
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});
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it("has a working getter for components", function() {
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var components = c.getComponents();
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expect( components ).toBeA( Array );
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expect( components.length ).toBe( 2 );
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expect( components[0] ).toBeA( ol.geom.Point );
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expect( components[1] ).toBeA( ol.geom.LineString );
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expect( components[0].getX() + ',' + components[0].getY()).toBe( '10,20' );
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expect( components[1].getVertices()[0].getX() + ',' + components[1].getVertices()[0].getY()).toBe( '47,11' );
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});
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it("has a working setter for components", function() {
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c.setComponents([
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new ol.geom.Point(30,40),
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new ol.geom.LineString([
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new ol.geom.Point(3,9),
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new ol.geom.Point(4,16)
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])
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]);
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var components = c.getComponents();
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expect( components.length ).toBe( 2 );
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expect( components[0] ).toBeA( ol.geom.Point );
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expect( components[1] ).toBeA( ol.geom.LineString );
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expect( components[0].getX() + ',' + components[0].getY()).toBe( '30,40' );
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expect( components[1].getVertices()[0].getX() + ',' + components[1].getVertices()[0].getY()).toBe( '3,9' );
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});
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it("has a method to add components", function() {
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c.addComponent(
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new ol.geom.Point(30,40),
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1
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);
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c.addComponent(
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new ol.geom.LineString([
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new ol.geom.Point(5,25),
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new ol.geom.Point(6,36)
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]),
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0
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);
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var components = c.getComponents();
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expect( components.length ).toBe( 4 );
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expect( components[0].getVertices()[0].getX() + ',' + components[0].getVertices()[0].getY()).toBe( '5,25' );
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expect( components[1].getX() + ',' + components[1].getY()).toBe( '10,20' );
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expect( components[2].getX() + ',' + components[2].getY()).toBe( '30,40' );
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expect( components[3].getVertices()[0].getX() + ',' + components[3].getVertices()[0].getY()).toBe( '47,11' );
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});
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it("cannot add instances of 'ol.geom.Collection'", function(){
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expect(function(){
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c.addComponent(
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new ol.geom.Collection([
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new ol.geom.Point(5,25),
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new ol.geom.Point(6,36)
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])
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);
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}).toThrow();
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});
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it("has a method to remove components", function() {
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c.setComponents([
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new ol.geom.Point(0,10),
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new ol.geom.Point(10,20),
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new ol.geom.Point(20,30),
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new ol.geom.Point(30,40)
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]);
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var p = c.getComponents()[2]; // 20,30;
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c.removeComponent( p );
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var components = c.getComponents();
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expect( components.length ).toBe( 3 );
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expect( components[0].getX() + ',' + components[0].getY()).toBe( '0,10' );
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expect( components[1].getX() + ',' + components[1].getY()).toBe( '10,20' );
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expect( components[2].getX() + ',' + components[2].getY()).toBe( '30,40' );
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});
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});
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