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110 lines
3.9 KiB
JavaScript
110 lines
3.9 KiB
JavaScript
const compare = require('../../../src/website/theme-base/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('throws an error if there arent enough parameters', () => {
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should(() => {
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const template = handlebars.compile('{{#compare value}}TRUE{{/compare}}')
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template({ value: 3 })
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}).throw(/needs 2 parameters/)
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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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