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106 lines
4.1 KiB
106 lines
4.1 KiB
7 years ago
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import { generateBinding } from '../../../src/platforms/weex/util/parser'
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describe('expression parser', () => {
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describe('generateBinding', () => {
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it('primitive literal', () => {
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expect(generateBinding('15')).toEqual(15)
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expect(generateBinding('"xxx"')).toEqual('xxx')
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})
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it('identifiers', () => {
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expect(generateBinding('x')).toEqual({ '@binding': 'x' })
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expect(generateBinding('x.y')).toEqual({ '@binding': 'x.y' })
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expect(generateBinding(`x.y['z']`)).toEqual({ '@binding': `x.y['z']` })
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})
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it('object literal', () => {
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expect(generateBinding('{}')).toEqual({})
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expect(generateBinding('{ abc: 25 }')).toEqual({ abc: 25 })
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expect(generateBinding('{ abc: 25, def: "xxx" }')).toEqual({ abc: 25, def: 'xxx' })
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expect(generateBinding('{ a: 3, b: { bb: "bb", bbb: { bbc: "BBC" } } }'))
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.toEqual({ a: 3, b: { bb: 'bb', bbb: { bbc: 'BBC' }}})
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})
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it('array literal', () => {
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expect(generateBinding('[]')).toEqual([])
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expect(generateBinding('[{ abc: 25 }]')).toEqual([{ abc: 25 }])
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expect(generateBinding('[{ abc: 25, def: ["xxx"] }]')).toEqual([{ abc: 25, def: ['xxx'] }])
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expect(generateBinding('{ a: [3,16], b: [{ bb: ["aa","bb"], bbb: [{bbc:"BBC"}] }] }'))
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.toEqual({ a: [3, 16], b: [{ bb: ['aa', 'bb'], bbb: [{ bbc: 'BBC' }] }] })
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})
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it('expressions', () => {
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expect(generateBinding(`3 + 5`)).toEqual({ '@binding': `3 + 5` })
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expect(generateBinding(`'x' + 2`)).toEqual({ '@binding': `'x' + 2` })
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expect(generateBinding(`\`xx\` + 2`)).toEqual({ '@binding': `\`xx\` + 2` })
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expect(generateBinding(`item.size * 23 + 'px'`)).toEqual({ '@binding': `item.size * 23 + 'px'` })
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})
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it('object bindings', () => {
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expect(generateBinding(`{ color: textColor }`)).toEqual({
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color: { '@binding': 'textColor' }
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})
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expect(generateBinding(`{ color: '#FF' + 66 * 100, fontSize: item.size }`)).toEqual({
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color: { '@binding': `'#FF' + 66 * 100` },
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fontSize: { '@binding': 'item.size' }
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})
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expect(generateBinding(`{
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x: { xx: obj, xy: -2 + 5 },
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y: {
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yy: { yyy: obj.y || yy },
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yz: typeof object.yz === 'string' ? object.yz : ''
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}
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}`)).toEqual({
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x: { xx: { '@binding': 'obj' }, xy: { '@binding': '-2 + 5' }},
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y: {
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yy: { yyy: { '@binding': 'obj.y || yy' }},
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yz: { '@binding': `typeof object.yz === 'string' ? object.yz : ''` }
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}
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})
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})
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it('array bindings', () => {
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expect(generateBinding(`[textColor, 3 + 5, 'string']`)).toEqual([
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{ '@binding': 'textColor' },
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{ '@binding': '3 + 5' },
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'string'
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])
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expect(generateBinding(`[
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{ color: '#FF' + 66 * -100 },
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item && item.style,
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{ fontSize: item.size | 0 }
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]`)).toEqual([
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{ color: { '@binding': `'#FF' + 66 * -100` }},
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{ '@binding': 'item && item.style' },
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{ fontSize: { '@binding': 'item.size | 0' }}
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])
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expect(generateBinding(`[{
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x: [{ xx: [fn instanceof Function ? 'function' : '' , 25] }],
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y: {
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yy: [{ yyy: [obj.yy.y, obj.y.yy] }],
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yz: [object.yz, void 0]
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}
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}]`)).toEqual([{
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x: [{ xx: [{ '@binding': `fn instanceof Function ? 'function' : ''` }, 25] }],
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y: {
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yy: [{ yyy: [{ '@binding': 'obj.yy.y' }, { '@binding': 'obj.y.yy' }] }],
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yz: [{ '@binding': 'object.yz' }, { '@binding': 'void 0' }]
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}
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}])
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})
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it('unsupported bindings', () => {
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expect(generateBinding('() => {}')).toEqual('')
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expect(generateBinding('function(){}')).toEqual('')
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expect(generateBinding('(function(){})()')).toEqual('')
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expect(generateBinding('var abc = 35')).toEqual('')
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expect(generateBinding('abc++')).toEqual('')
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expect(generateBinding('x.y(0)')).toEqual('')
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expect(generateBinding('class X {}')).toEqual('')
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expect(generateBinding('if (typeof x == null) { 35 }')).toEqual('')
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expect(generateBinding('while (x == null)')).toEqual('')
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expect(generateBinding('new Function()')).toEqual('')
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})
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})
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})
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