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