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Add ol.structs.Buffer#getSplit32

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This commit is contained in:
Tom Payne
2013-05-30 19:55:09 +02:00
parent f61edacb5c
commit 42f15f000b
2 changed files with 96 additions and 0 deletions
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39
test/spec/ol/structs/buffer.test.js
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@@ -220,6 +220,45 @@ describe('ol.structs.Buffer', function() {
});
describe('with a populated instance', function() {
var b;
beforeEach(function() {
b = new ol.structs.Buffer([1234567.1234567, -7654321.7654321]);
});
describe('getSplit32', function() {
it('returns the expected value', function() {
var split32 = b.getSplit32();
expect(split32.high).to.be.a(Float32Array);
expect(split32.low).to.be.a(Float32Array);
expect(split32.high).to.have.length(2);
expect(split32.low).to.have.length(2);
expect(split32.high[0]).to.roughlyEqual(1179648.0, 1e1);
expect(split32.low[0]).to.roughlyEqual(54919.12345670001, 1e-2);
expect(split32.high[1]).to.roughlyEqual(-7602176.0, 1e1);
expect(split32.low[1]).to.roughlyEqual(-52145.76543209981, 1e-2);
});
it('tracks updates', function() {
b.getSplit32();
b.getArray()[0] = 0;
b.markDirty(1, 0);
var split32 = b.getSplit32();
expect(split32.high).to.be.a(Float32Array);
expect(split32.low).to.be.a(Float32Array);
expect(split32.high).to.have.length(2);
expect(split32.low).to.have.length(2);
expect(split32.high[0]).to.be(0);
expect(split32.low[0]).to.be(0);
expect(split32.high[1]).to.roughlyEqual(-7602176.0, 1e1);
expect(split32.low[1]).to.roughlyEqual(-52145.76543209981, 1e-2);
});
});
});
describe('usage tests', function() {
it('allows multiple adds and removes', function() {