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86 lines
2.0 KiB
JavaScript
86 lines
2.0 KiB
JavaScript
'use strict'
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const test = require('ava')
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const {execSync} = require('child_process')
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const stream = require('./stream')
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function fx(json, code = '') {
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return execSync(`echo '${JSON.stringify(json)}' | node index.js ${code}`).toString('utf8')
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}
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test('pass', t => {
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const r = fx([{'greeting': 'hello world'}])
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t.deepEqual(JSON.parse(r), [{'greeting': 'hello world'}])
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})
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test('anon func', t => {
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const r = fx({'key': 'value'}, '\'function (x) { return x.key }\'')
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t.is(r, 'value\n')
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})
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test('arrow func', t => {
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const r = fx({'key': 'value'}, '\'x => x.key\'')
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t.is(r, 'value\n')
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})
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test('arrow func ()', t => {
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const r = fx({'key': 'value'}, '\'(x) => x.key\'')
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t.is(r, 'value\n')
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})
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test('this bind', t => {
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const r = fx([1, 2, 3, 4, 5], '\'this.map(x => x * this.length)\'')
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t.deepEqual(JSON.parse(r), [5, 10, 15, 20, 25])
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})
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test('chain', t => {
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const r = fx({'items': ['foo', 'bar']}, '\'this.items\' \'.\' \'x => x[1]\'')
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t.is(r, 'bar\n')
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})
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test('file argument', t => {
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const r = execSync(`node index.js package.json .name`).toString('utf8')
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t.is(r, 'fx\n')
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})
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test('stream', t => {
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const input = `
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{"index": 0} {"index": 1}
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{"index": 2, "quote": "\\""}
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{"index": 3} "Hello" "world"
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{"index": 6, "key": "one \\"two\\" three"}
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`
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t.plan(7 * (input.length - 1))
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for (let i = 0; i < input.length; i++) {
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const parts = [input.substring(0, i), input.substring(i)]
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const reader = stream(
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{
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read() {
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return parts.shift()
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}
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},
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json => {
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t.pass()
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}
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)
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reader.read()
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}
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})
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test('lossless number', t => {
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const r = execSync(`echo '{"long": 123456789012345678901}' | node index.js .long`).toString('utf8')
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t.is(r, '123456789012345678901\n')
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})
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test('value iterator', t => {
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const r = fx({master: {foo: [{bar: [{val: 1}]}]}}, '.master.foo[].bar[].val')
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t.deepEqual(JSON.parse(r), [1])
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})
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test('value iterator simple', t => {
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const r = fx([{val:1},{val:2}], '.[].val')
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t.deepEqual(JSON.parse(r), [1, 2])
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})
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