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gtl_spec.coffee
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/
gtl_spec.coffee
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gtl = require('../src/gtl.coffee')
chai = require('chai')
sinon = require('sinon')
sinonChai = require('sinon-chai')
chai.should()
chai.use(sinonChai)
describe 'Greater than less', ->
describe 'gtl.filter function', ->
describe 'greater/less rules', ->
it 'should filter array with greaterThan rule', ->
gtl.filter([1, 2, 3, 4, 5], greaterThan: 3).should.eql [4, 5]
gtl.filter([1, 2, 3, 4, 5], gt: 3).should.eql [4, 5]
it 'should filter array of strings with greaterThan rule', ->
gtl.filter(['a', 'b', 'c', 'd', 'e'], greaterThan: 'c').should.eql ['d', 'e']
it 'should filter array with greaterThanOrEqualTo rule', ->
gtl.filter([1, 2, 3, 4, 5], greaterThanOrEqualTo: 3).should.eql [3, 4, 5]
gtl.filter([1, 2, 3, 4, 5], gte: 3).should.eql [3, 4, 5]
gtl.filter([1, 2, 3, 4, 5], gteq: 3).should.eql [3, 4, 5]
it 'should filter array of strings with greaterThanOrEqualTo rule', ->
gtl.filter(['a', 'b', 'c', 'd', 'e'], greaterThanOrEqualTo: 'c').should.eql ['c', 'd', 'e']
it 'should filter array with lessThan rule', ->
gtl.filter([1, 2, 3, 4, 5], lessThan: 3).should.eql [1, 2]
gtl.filter([1, 2, 3, 4, 5], lt: 3).should.eql [1, 2]
it 'should filter array of strings with lessThan rule', ->
gtl.filter(['a', 'b', 'c', 'd', 'e'], lessThan: 'c').should.eql ['a', 'b']
it 'should filter array with lessThanOrEqualTo rule', ->
gtl.filter([1, 2, 3, 4, 5], lessThanOrEqualTo: 3).should.eql [1, 2, 3]
gtl.filter([1, 2, 3, 4, 5], lte: 3).should.eql [1, 2, 3]
gtl.filter([1, 2, 3, 4, 5], lteq: 3).should.eql [1, 2, 3]
it 'should filter array of strings with lessThanOrEqualTo rule', ->
gtl.filter(['a', 'b', 'c', 'd', 'e'], lessThanOrEqualTo: 'c').should.eql ['a', 'b', 'c']
it 'should filter array with only rule', ->
gtl.filter([1, 2, 3, 4, 5], only: 2).should.eql [2]
gtl.filter([1, 2, 3, 4, 5], only: [1, 2]).should.eql [1, 2]
it 'should filter array of strings with only rule', ->
gtl.filter(['a', 'b', 'c', 'd', 'e'], only: 'c').should.eql ['c']
describe 'inclusion and exclusion rules', ->
it 'should filter array with except rule', ->
gtl.filter([1, 2, 3, 4, 5], except: 3).should.eql [1, 2, 4, 5]
gtl.filter([1, 2, 3, 4, 5], not: 3).should.eql [1, 2, 4, 5]
gtl.filter([1, 2, 3, 4, 5], except: [1, 2]).should.eql [3, 4, 5]
it 'should filter array of strings with except rule', ->
gtl.filter(['a', 'b', 'c', 'd', 'e'], except: ['a', 'c']).should.eql ['b', 'd', 'e']
describe 'grep rule', ->
it 'should filter array by grepping strings', ->
gtl.filter(
['but break', 'my heart', 'for I must', 'hold my tongue']
grep: 'my'
).should.eql ['my heart', 'hold my tongue']
it 'should filter array by grepping RegExp', ->
gtl.filter(
['but break', 'my heart', 'for I must', 'hold my tongue']
grep: /m./
).should.eql ['my heart', 'for I must', 'hold my tongue']
describe 'fuzzy', ->
it 'should filter array by fuzzy search in strings', ->
gtl.filter(
['but break', 'my heart', 'for I must', 'hold my tongue']
fuzzy: 'ut'
).should.eql ['but break', 'for I must']
describe 'multiply', ->
it 'should filter by multiply rules', ->
gtl.filter([1, 2, 3, 4, 5], gt: 2, lte: 4).should.eql [3, 4]
describe 'filter arrays of objects through iterator', ->
it 'should use iterator passed as third argument', ->
gtl.filter(
[{ num : 1 }, { num : 2 }, { num : 3 }, { num : 4 }, { num : 5 }]
gte: 4
(obj) -> obj.num
).should.eql [{ num : 4 }, { num : 5 }]
describe 'add custom comparator', ->
it 'should works with custom rule added to gtl.rules', ->
gtl.rules.odd = (a) -> a % 2 == 1
gtl.filter([1, 2, 3, 4, 5], odd: true).should.eql [1, 3, 5]
gtl.rules.even = (a) -> a % 2 != 1
gtl.filter([1, 2, 3, 4, 5], even: true).should.eql [2, 4]
describe 'iterator rules', ->
it 'should filter array by specified field', ->
gtl.filter(
[{ body: { text: 'but break' } }, { body: { text: 'my heart' } }, { body: { text: 'for I must' } }, { body: { text: 'hold my tongue' } }]
grep: 'my'
in: 'body.text'
).should.eql [{ body: { text: 'my heart' } }, { body: { text: 'hold my tongue' } }]
it 'should filter array by specified fields', ->
gtl.filter(
[{ one: 1, two: 5 }, { one: 4, two: 4 }, { one: 4, two: -2 }, { one: 5, two: 7 }]
gt: 4
or: ['one', 'two']
).should.eql [{ one: 1, two: 5 }, { one: 5, two: 7 }]
it 'should filter array by specified fields where all elements satisfy the condition', ->
gtl.filter(
[{ one: 1, two: 5 }, { one: 4, two: 4 }, { one: 4, two: -2 }, { one: 5, two: 7 }]
gte: 4
and: ['one', 'two']
).should.eql [{ one: 4, two: 4 }, { one: 5, two: 7 }]
it 'should filter array by specified fields, combine or and and iterator rules', ->
gtl.filter(
[{ one: 1, two: 5, three: 4 }, { one: 4, two: 4, three: 9 }, { one: 4, two: -2, three: 3 }, { one: 5, two: 7, three: 1 }]
gte: 4
or: ['one', 'two']
and: 'three'
).should.eql [{ one: 1, two: 5, three: 4 }, { one: 4, two: 4, three: 9 }]
describe 'gtl.curry', ->
it 'should curry filter rules', ->
findWilly = gtl.curry(fuzzy: 'willy')
findWilly(
['storm we are ill', 'is we ill yo', 'trololo will']
).should.eql ['is we ill yo']
it 'should merge curried rules with passed by user', ->
curried = gtl.curry(or: ['one', 'two'], and: 'three')
curried(
[{ one: 1, two: 5, three: 4 }, { one: 4, two: 4, three: 9 }, { one: 4, two: -2, three: 3 }, { one: 5, two: 7, three: 1 }]
gte: 4
).should.eql [{ one: 1, two: 5, three: 4 }, { one: 4, two: 4, three: 9 }]
curried = gtl.curry(or: ['one', 'two'], and: 'four')
curried(
[{ one: 1, two: 5, three: 4 }, { one: 4, two: 4, three: 9 }, { one: 4, two: -2, three: 3 }, { one: 5, two: 7, three: 1 }]
gte: 4
and: 'three'
).should.eql [{ one: 1, two: 5, three: 4 }, { one: 4, two: 4, three: 9 }]
it 'should curry iterator', ->
curried = gtl.curry(gte: 4, (obj) -> obj.num)
curried(
[{ num : 1 }, { num : 2 }, { num : 3 }, { num : 4 }, { num : 5 }]
).should.eql [{ num : 4 }, { num : 5 }]
curried = gtl.curry(gte: 4, (obj) -> obj.bum)
curried(
[{ num : 1 }, { num : 2 }, { num : 3 }, { num : 4 }, { num : 5 }]
(obj) -> obj.num
).should.eql [{ num : 4 }, { num : 5 }]
describe 'gtl.clone', ->
it 'should clone gtl object', ->
cloned = gtl.clone()
cloned.rules.should.not.eq gtl.rules
it 'should copy based gtl rules', ->
cloned = gtl.clone()
for name, fn of gtl.rules
cloned.rules[name].should.eq fn