133 lines
3.3 KiB
JavaScript
133 lines
3.3 KiB
JavaScript
describe("ol.Loc", function() {
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it("allows empty construction", function() {
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var loc;
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// nowhere
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loc = ol.loc();
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expect(loc instanceof ol.Loc).toBe(true);
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});
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it("allows construction from an obj config", function() {
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var loc;
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// obj config
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loc = ol.loc({x: 10, y: 20});
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expect(loc.x()).toBe(10);
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expect(loc.y()).toBe(20);
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});
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it("allows construction from an array config", function() {
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var loc;
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// array config
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loc = ol.loc([30, 40]);
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expect(loc.x()).toBe(30);
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expect(loc.y()).toBe(40);
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});
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it("accounts for the third dimension", function() {
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var loc;
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// obj config
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loc = ol.loc({x: 10, y: 20, z: 30});
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expect(loc.z()).toBe(30);
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// array config
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loc = ol.loc([40, 50, 60]);
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expect(loc.z()).toBe(60);
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});
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it("is mutable", function() {
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var loc = ol.loc({x: 10, y: 20, z: 15});
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loc.z(30);
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expect(loc.x()).toBe(10);
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expect(loc.y()).toBe(20);
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expect(loc.z()).toBe(30);
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});
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it("has no default projection", function() {
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var loc = ol.loc({x: 1, y: 2});
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expect(loc.projection()).toBeUndefined();
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});
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it("allows projection to be set", function() {
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var proj;
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// at construction
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var loc = ol.loc({x: 1, y: 2, projection: "EPSG:4326"});
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proj = loc.projection();
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expect(proj instanceof ol.Projection).toBe(true);
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expect(proj.code()).toBe("EPSG:4326");
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// after construction
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loc.projection("EPSG:3857");
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expect(loc.projection().code()).toBe("EPSG:3857");
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// setting projection does not transform coordinates
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expect(loc.x()).toBe(1);
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expect(loc.y()).toBe(2);
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});
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it("can be transformed (to mercator)", function() {
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var loc = ol.loc({x: 10, y: 20, projection: "EPSG:4326"});
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var trans = loc.transform("EPSG:3857");
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expect(trans instanceof ol.Loc).toBe(true);
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expect(trans.projection().code()).toBe("EPSG:3857");
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expect(trans.x().toFixed(3)).toBe("1113194.908");
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expect(trans.y().toFixed(3)).toBe("2273030.927");
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expect(loc.x().toFixed(3)).toBe("10.000");
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expect(loc.y().toFixed(3)).toBe("20.000");
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});
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it("can be transformed (to geographic)", function() {
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var loc = ol.loc({x: 1113195, y: 2273031, projection: "EPSG:3857"});
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var trans = loc.transform("EPSG:4326");
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expect(trans instanceof ol.Loc).toBe(true);
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expect(trans.projection().code()).toBe("EPSG:4326");
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expect(trans.x().toFixed(3)).toBe("10.000");
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expect(trans.y().toFixed(3)).toBe("20.000");
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});
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it("should not be transformable if it has no projection", function() {
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var loc = ol.loc([1, 2]);
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expect(function() {
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loc.transform("EPSG:4326");
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}).toThrow();
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});
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it("is destroyable", function() {
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var loc = ol.loc([1, 2]);
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loc.destroy();
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expect(loc.config).toBeUndefined();
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expect(function() {
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loc.x();
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}).toThrow();
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});
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});
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