88 lines
2.0 KiB
JavaScript
88 lines
2.0 KiB
JavaScript
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var test = require('tape')
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var extract = require('../')
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test('extract where test returns true', function (t) {
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var arr = [
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{ result: false, number: 1 },
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{ result: false, number: 2 },
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{ result: true, number: 3 },
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{ result: true, number: 4 }
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]
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function isTrueResult (item) {
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return item.result === true
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}
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var result = arr.reduce(extract(isTrueResult))
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t.deepEqual(result, [
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{ result: true, number: 3 },
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{ result: true, number: 4 }
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])
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t.deepEqual(arr, [
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{ result: false, number: 1 },
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{ result: false, number: 2 }
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])
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t.end()
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})
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test('extract where query matches', function (t) {
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var arr = [
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{ result: false, number: 1 },
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{ result: false, number: 2 },
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{ result: true, number: 3 },
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{ result: true, number: 4 }
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]
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var result = arr.reduce(extract({ result: false}))
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t.deepEqual(result, [
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{ result: false, number: 1 },
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{ result: false, number: 2 }
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])
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t.deepEqual(arr, [
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{ result: true, number: 3 },
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{ result: true, number: 4 }
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])
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t.end()
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})
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test('extract where query matches, 1 item in array, inital array', function (t) {
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var arr = [
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{ result: false, number: 1 }
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]
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var result = arr.reduce(extract({ result: false}), [])
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t.deepEqual(result, [
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{ result: false, number: 1 }
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])
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t.deepEqual(arr, [])
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t.end()
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})
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test('extract where query matches, 1 item in array', function (t) {
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var arr = [
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{ result: false, number: 1 }
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]
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var result = arr.reduce(extract({ result: false}))
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t.deepEqual(result, { result: false, number: 1 })
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t.deepEqual(arr, arr)
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t.end()
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})
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test('extract where query contains arrays', function (t) {
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var q = [ 1, 2, 3 ]
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var w = [ 4, 5, 6 ]
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var arr = [ q, w ]
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var result = arr.reduce(extract(q))
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t.deepEqual(result, [ q ])
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t.deepEqual(arr, [ w ])
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t.end()
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})
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test('extract where query contains arrays, initial val', function (t) {
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var q = [ 1, 2, 3 ]
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var w = [ 4, 5, 6 ]
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var arr = [ q, w ]
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var result = arr.reduce(extract(q), [])
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t.deepEqual(result, [ q ])
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t.deepEqual(arr, [ w ])
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t.end()
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})
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