index.js
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'use strict'
var assert = require('assert')
var constaninople = require('../')
describe('isConstant(src)', function () {
it('handles "[5 + 3 + 10]"', function () {
assert(constaninople.isConstant('[5 + 3 + 10]') === true)
})
it('handles "/[a-z]/.test(\'a\')"', function () {
assert(constaninople.isConstant('/[a-z]/.test(\'a\')') === true)
})
it('handles "{\'class\': [(\'data\')]}"', function () {
assert(constaninople.isConstant('{\'class\': [(\'data\')]}') === true)
})
it('handles "Math.random()"', function () {
assert(constaninople.isConstant('Math.random()') === false)
})
it('handles "Math.random("', function () {
assert(constaninople.isConstant('Math.random(') === false)
})
it('handles "Math.floor(10.5)" with {Math: Math} as constants', function () {
assert(constaninople.isConstant('Math.floor(10.5)', {Math: Math}) === true)
})
it('handles "this.myVar"', function () {
assert(constaninople.isConstant('this.myVar') === false)
})
it('handles "(function () { while (true); return 10; }())"', function () {
assert(constaninople.isConstant('(function () { while (true); return 10; }())') === false)
})
})
describe('toConstant(src)', function () {
it('handles "[5 + 3 + 10]"', function () {
assert.deepEqual(constaninople.toConstant('[5 + 3 + 10]'), [5 + 3 + 10])
})
it('handles "/[a-z]/.test(\'a\')"', function () {
assert(constaninople.toConstant('/[a-z]/.test(\'a\')') === true)
})
it('handles "{\'class\': [(\'data\')]}"', function () {
assert.deepEqual(constaninople.toConstant('{\'class\': [(\'data\')]}'), {'class': ['data']})
})
it('handles "Math.random()"', function () {
try {
constaninople.toConstant('Math.random()')
} catch (ex) {
return
}
assert(false, 'Math.random() should result in an error')
})
it('handles "Math.random("', function () {
try {
constaninople.toConstant('Math.random(')
} catch (ex) {
return
}
assert(false, 'Math.random( should result in an error')
})
it('handles "Math.floor(10.5)" with {Math: Math} as constants', function () {
assert(constaninople.toConstant('Math.floor(10.5)', {Math: Math}) === 10)
})
it('handles "(function () { while (true); return 10; }())"', function () {
try {
constaninople.toConstant('(function () { while (true); return 10; }())')
} catch (ex) {
return
}
assert(false, '(function () { while (true); return 10; }()) should result in an error')
})
})