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59 lines
2.0 KiB
JavaScript
59 lines
2.0 KiB
JavaScript
/*
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* vim: ts=4:sw=4:expandtab
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*/
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'use strict';
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describe("Helpers", function() {
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describe("ArrayBuffer->String conversion", function() {
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it('works', function() {
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var b = new ArrayBuffer(3);
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var a = new Uint8Array(b);
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a[0] = 0;
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a[1] = 255;
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a[2] = 128;
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assert.equal(getString(b), "\x00\xff\x80");
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});
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});
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describe("toArrayBuffer", function() {
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it('returns undefined when passed undefined', function() {
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assert.strictEqual(toArrayBuffer(undefined), undefined);
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});
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it('returns ArrayBuffer when passed ArrayBuffer', function() {
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var StaticArrayBufferProto = new ArrayBuffer().__proto__;
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var anArrayBuffer = new ArrayBuffer();
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assert.strictEqual(toArrayBuffer(anArrayBuffer), anArrayBuffer);
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});
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it('throws an error when passed a non Stringable thing', function() {
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var madeUpObject = function() {};
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var notStringable = new madeUpObject();
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assert.throw(function() { toArrayBuffer(notStringable) },
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Error, /Tried to convert a non-stringable thing/);
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});
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});
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describe("isEqual", function(){
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it('returns false when a or b is undefined', function(){
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assert.isFalse(isEqual("defined value", undefined, false));
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assert.isFalse(isEqual(undefined, "defined value", false));
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});
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it('returns true when a and b are equal', function(){
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var a = "same value";
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var b = "same value";
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assert.isTrue(isEqual(a, b, false));
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});
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it('returns false when a and b are not equal', function(){
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var a = "same value";
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var b = "diferent value";
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assert.isFalse(isEqual(a, b, false));
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});
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it('throws an error when a/b compare is too short', function(){
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var a = "1234";
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var b = "1234";
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assert.throw(function() { isEqual(a, b, true) },
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Error, /a\/b compare too short/);
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});
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});
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});
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