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103 lines
3.6 KiB
JavaScript
103 lines
3.6 KiB
JavaScript
const compare = require('../../../src/website/helpers/compare')
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const handlebars = require('handlebars')
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const should = require('should/as-function')
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describe('Handlebars helpers: compare', () => {
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handlebars.registerHelper('compare', compare)
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it('executes the block if the condition is true', () => {
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const template = handlebars.compile(`{{#compare value '==' 3}}TRUE{{/compare}}`)
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const res = template({value: 3})
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should(res).eql('TRUE')
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})
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it('does not execute the block if the condition is false', () => {
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const template = handlebars.compile(`{{#compare value '==' 3}}{{/compare}}`)
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const res = template({value: 4})
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should(res).eql('')
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})
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it('executes the {{else}} block if the condition is false', () => {
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const template = handlebars.compile(`{{#compare value '==' 3}}TRUE{{else}}FALSE{{/compare}}`)
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const res = template({value: 4})
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should(res).eql('FALSE')
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})
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it('defaults to a strict equality', () => {
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const template = handlebars.compile(`{{#compare value 3}}TRUE{{/compare}}`)
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const res = template({value: 3})
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should(res).eql('TRUE')
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})
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it('throws an error if the operator is not known', () => {
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const template = handlebars.compile(`{{#compare value '~~' 3}}TRUE{{/compare}}`)
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should(() => {
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template({value: 3})
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}).throw(/operator/)
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})
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it('keeps the context when executing the block', () => {
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const template = handlebars.compile(`{{#compare value '==' 3}}{{hello}}{{/compare}}`)
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const res = template({value: 3, hello: 'world'})
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should(res).eql('world')
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})
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describe('operators', () => {
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it('equal', () => {
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const template = handlebars.compile(`{{#compare value '==' 3}}TRUE{{/compare}}`)
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should(template({value: 3})).eql('TRUE')
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should(template({value: '3'})).eql('TRUE')
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should(template({value: 4})).eql('')
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})
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it('strict equal', () => {
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const template = handlebars.compile(`{{#compare value '===' 3}}TRUE{{/compare}}`)
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should(template({value: 3})).eql('TRUE')
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should(template({value: '3'})).eql('')
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should(template({value: 4})).eql('')
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})
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it('different', () => {
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const template = handlebars.compile(`{{#compare value '!=' 3}}TRUE{{/compare}}`)
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should(template({value: 3})).eql('')
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should(template({value: '3'})).eql('')
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should(template({value: 4})).eql('TRUE')
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})
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it('strict different', () => {
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const template = handlebars.compile(`{{#compare value '!==' 3}}TRUE{{/compare}}`)
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should(template({value: 3})).eql('')
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should(template({value: '3'})).eql('TRUE')
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should(template({value: 4})).eql('TRUE')
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})
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it('less than', () => {
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const template = handlebars.compile(`{{#compare value '<' 3}}TRUE{{/compare}}`)
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should(template({value: 2})).eql('TRUE')
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should(template({value: 3})).eql('')
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should(template({value: 4})).eql('')
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})
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it('greater than', () => {
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const template = handlebars.compile(`{{#compare value '>' 3}}TRUE{{/compare}}`)
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should(template({value: 2})).eql('')
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should(template({value: 3})).eql('')
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should(template({value: 4})).eql('TRUE')
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})
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it('less or equal', () => {
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const template = handlebars.compile(`{{#compare value '<=' 3}}TRUE{{/compare}}`)
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should(template({value: 2})).eql('TRUE')
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should(template({value: 3})).eql('TRUE')
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should(template({value: 4})).eql('')
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})
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it('greater or equal', () => {
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const template = handlebars.compile(`{{#compare value '>=' 3}}TRUE{{/compare}}`)
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should(template({value: 2})).eql('')
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should(template({value: 3})).eql('TRUE')
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should(template({value: 4})).eql('TRUE')
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})
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})
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})
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