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handlebars.js/spec/javascript-compiler.js
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describe('javascript-compiler api', function () { | |
if (!Handlebars.JavaScriptCompiler) { | |
return; | |
} | |
describe('#nameLookup', function () { | |
var $superName; | |
beforeEach(function () { | |
$superName = handlebarsEnv.JavaScriptCompiler.prototype.nameLookup; | |
}); | |
afterEach(function () { | |
handlebarsEnv.JavaScriptCompiler.prototype.nameLookup = $superName; | |
}); | |
it('should allow override', function () { | |
handlebarsEnv.JavaScriptCompiler.prototype.nameLookup = function ( | |
parent, | |
name | |
) { | |
return parent + '.bar_' + name; | |
}; | |
/* eslint-disable camelcase */ | |
expectTemplate('{{foo}}') | |
.withInput({ bar_foo: 'food' }) | |
.toCompileTo('food'); | |
/* eslint-enable camelcase */ | |
}); | |
// Tests nameLookup dot vs. bracket behavior. Bracket is required in certain cases | |
// to avoid errors in older browsers. | |
it('should handle reserved words', function () { | |
expectTemplate('{{foo}} {{~null~}}') | |
.withInput({ foo: 'food' }) | |
.toCompileTo('food'); | |
}); | |
}); | |
describe('#compilerInfo', function () { | |
var $superCheck, $superInfo; | |
beforeEach(function () { | |
$superCheck = handlebarsEnv.VM.checkRevision; | |
$superInfo = handlebarsEnv.JavaScriptCompiler.prototype.compilerInfo; | |
}); | |
afterEach(function () { | |
handlebarsEnv.VM.checkRevision = $superCheck; | |
handlebarsEnv.JavaScriptCompiler.prototype.compilerInfo = $superInfo; | |
}); | |
it('should allow compilerInfo override', function () { | |
handlebarsEnv.JavaScriptCompiler.prototype.compilerInfo = function () { | |
return 'crazy'; | |
}; | |
handlebarsEnv.VM.checkRevision = function (compilerInfo) { | |
if (compilerInfo !== 'crazy') { | |
throw new Error("It didn't work"); | |
} | |
}; | |
expectTemplate('{{foo}} ') | |
.withInput({ foo: 'food' }) | |
.toCompileTo('food '); | |
}); | |
}); | |
describe('buffer', function () { | |
var $superAppend, $superCreate; | |
beforeEach(function () { | |
handlebarsEnv.JavaScriptCompiler.prototype.forceBuffer = true; | |
$superAppend = handlebarsEnv.JavaScriptCompiler.prototype.appendToBuffer; | |
$superCreate = | |
handlebarsEnv.JavaScriptCompiler.prototype.initializeBuffer; | |
}); | |
afterEach(function () { | |
handlebarsEnv.JavaScriptCompiler.prototype.forceBuffer = false; | |
handlebarsEnv.JavaScriptCompiler.prototype.appendToBuffer = $superAppend; | |
handlebarsEnv.JavaScriptCompiler.prototype.initializeBuffer = | |
$superCreate; | |
}); | |
it('should allow init buffer override', function () { | |
handlebarsEnv.JavaScriptCompiler.prototype.initializeBuffer = | |
function () { | |
return this.quotedString('foo_'); | |
}; | |
expectTemplate('{{foo}} ') | |
.withInput({ foo: 'food' }) | |
.toCompileTo('foo_food '); | |
}); | |
it('should allow append buffer override', function () { | |
handlebarsEnv.JavaScriptCompiler.prototype.appendToBuffer = function ( | |
string | |
) { | |
return $superAppend.call(this, [string, ' + "_foo"']); | |
}; | |
expectTemplate('{{foo}}') | |
.withInput({ foo: 'food' }) | |
.toCompileTo('food_foo'); | |
}); | |
}); | |
describe('#isValidJavaScriptVariableName', function () { | |
// It is there and accessible and could be used by someone. That's why we don't remove it | |
// it 4.x. But if we keep it, we add a test | |
// This test should not encourage you to use the function. It is not needed any more | |
// and might be removed in 5.0 | |
['test', 'abc123', 'abc_123'].forEach(function (validVariableName) { | |
it("should return true for '" + validVariableName + "'", function () { | |
expect( | |
handlebarsEnv.JavaScriptCompiler.isValidJavaScriptVariableName( | |
validVariableName | |
) | |
).to.be.true(); | |
}); | |
}); | |
[('123test', 'abc()', 'abc.cde')].forEach(function (invalidVariableName) { | |
it("should return true for '" + invalidVariableName + "'", function () { | |
expect( | |
handlebarsEnv.JavaScriptCompiler.isValidJavaScriptVariableName( | |
invalidVariableName | |
) | |
).to.be.false(); | |
}); | |
}); | |
}); | |
}); |