const chai = require('chai') const expect = chai.expect const Liquid = require('..') const mock = require('mock-fs') chai.use(require('chai-as-promised')) describe('liquid', function () { var engine, strictEngine, ctx beforeEach(function () { ctx = { name: 'harttle', arr: [-2, 'a'], obj: { foo: 'bar' } } engine = Liquid({ root: '/root/', extname: '.html' }) strictEngine = Liquid({ root: '/root', extname: '.html', strict_filters: true }) mock({ '/root/files/foo.html': 'foo', '/root/files/name.html': 'My name is {{name}}.', '/un-readable.html': mock.file({ mode: '0000' }) }) }) afterEach(function () { mock.restore() }) describe('{{output}}', function () { it('should output object', function () { return expect(engine.parseAndRender('{{obj}}', ctx)).to.eventually.equal('{"foo":"bar"}') }) it('should output array', function () { return expect(engine.parseAndRender('{{arr}}', ctx)).to.eventually.equal('[-2,"a"]') }) it('should output undefined to empty', function () { return expect(engine.parseAndRender('foo{{zzz}}bar', ctx)).to.eventually.equal('foobar') }) it('should render as null when filter undefined', function () { return expect(engine.parseAndRender('{{"foo" | filter1}}', ctx)).to.eventually.equal('foo') }) it('should throw upon undefined filter when strict_filters set', function () { return expect(strictEngine.parseAndRender('{{arr | filter1}}', ctx)).to .be.rejectedWith(/undefined filter: filter1/) }) }) it('should parse html', function () { expect(function () { engine.parse('{{obj}}') }).to.not.throw() expect(function () { engine.parse('{{obj}}') }).to.not.throw() }) it('should render template multiple times', function () { var template = engine.parse('{{obj}}') return engine.render(template, ctx) .then((result) => { expect(result).to.equal('{"foo":"bar"}') return engine.render(template, ctx) }) .then((result) => { return expect(result).to.equal('{"foo":"bar"}') }) }) it('should render filters', function () { var template = engine.parse('

{{arr | join: "_"}}

') return expect(engine.render(template, ctx)).to.eventually.equal('

-2_a

') }) it('should render accessive filters', function () { var src = '{% assign my_array = "apples, oranges, peaches, plums" | split: ", " %}' + '{{ my_array | first }}' return expect(engine.parseAndRender(src)).to.eventually.equal('apples') }) describe('#renderFile()', function () { it('should render file', function () { return expect(engine.renderFile('/root/files/foo.html', ctx)) .to.eventually.equal('foo') }) it('should accept relative path', function () { return expect(engine.renderFile('files/foo.html')) .to.eventually.equal('foo') }) it('should resolve array as root', function () { engine = Liquid({ root: ['/boo', '/root/'], extname: '.html' }) return expect(engine.renderFile('files/foo.html')) .to.eventually.equal('foo') }) it('should default root to cwd', function () { var files = {} files[process.cwd() + '/foo.html'] = 'FOO' mock(files) engine = Liquid({ extname: '.html' }) return expect(engine.renderFile('foo.html')) .to.eventually.equal('FOO') }) it('should render file with context', function () { return expect(engine.renderFile('/root/files/name.html', ctx)).to.eventually.equal('My name is harttle.') }) it('should use default extname', function () { return expect(engine.renderFile('files/name', ctx)).to.eventually.equal('My name is harttle.') }) it('should throw with lookup list when file not exist', function () { engine = Liquid({ root: ['/boo', '/root/'], extname: '.html' }) return expect(engine.renderFile('/not/exist.html')).to .be.rejectedWith(/failed to lookup \/not\/exist.html in: \/boo,\/root\//i) }) it('should throw when file not readable', function () { return expect(engine.renderFile('/un-readable.html')).to .be.rejectedWith(/EACCES/) }) }) describe('strict', function () { it('should not throw when strict_variables false (default)', function () { return expect(engine.parseAndRender('before{{notdefined}}after', ctx)).to .eventually.equal('beforeafter') }) it('should throw when strict_variables true', function () { var tpl = engine.parse('before{{notdefined}}after') var opts = { strict_variables: true } return expect(engine.render(tpl, ctx, opts)).to .be.rejectedWith(/undefined variable: notdefined/) }) it('should pass strict_variables to render by parseAndRender', function () { var html = 'before{{notdefined}}after' var opts = { strict_variables: true } return expect(engine.parseAndRender(html, ctx, opts)).to .be.rejectedWith(/undefined variable: notdefined/) }) }) describe('cache', function () { it('should be disabled by default', function () { return engine.renderFile('files/foo') .then(x => expect(x).to.equal('foo')) .then(() => mock({ '/root/files/foo.html': 'bar' })) .then(() => engine.renderFile('files/foo')) .then(x => expect(x).to.equal('bar')) }) it('should respect cache=true option', function () { engine = Liquid({ root: '/root/', extname: '.html', cache: true }) return engine.renderFile('files/foo') .then(x => expect(x).to.equal('foo')) .then(() => mock({ '/root/files/foo.html': 'bar' })) .then(() => engine.renderFile('files/foo')) .then(x => expect(x).to.equal('foo')) }) }) describe('trim_left, trim_right', function () { it('should trim_left for tags when trim_left=true', function () { engine = Liquid({ trim_left: true }) return expect(engine.parseAndRender(' \n \t{%if true%}foo{%endif%} ')) .to.eventually.equal(' \nfoo ') }) it('should trim_right for tags when trim_right=true', function () { engine = Liquid({ trim_right: true }) return expect(engine.parseAndRender('\t{%if true%}foo{%endif%} \n')) .to.eventually.equal('\tfoo') }) it('should trim all blanks before and after when greedy=true', function () { engine = Liquid({ greedy: true }) return expect(engine.parseAndRender('\t{%-if true%}foo{%endif-%} \n \n')) .to.eventually.equal('foo') }) it('should support trim using markup', function () { engine = Liquid() var src = [ '{%- assign username = "John G. Chalmers-Smith" -%}', '{%- if username and username.length > 10 -%}', ' Wow, {{ username }}, you have a long name!', '{%- else -%}', ' Hello there!', '{%- endif -%}\n' ].join('\n') var dst = ' Wow, John G. Chalmers-Smith, you have a long name!\n' return expect(engine.parseAndRender(src)).to.eventually.equal(dst) }) it('should not trim when not specified', function () { engine = Liquid() var src = [ '{% assign username = "John G. Chalmers-Smith" %}', '{% if username and username.length > 10 %}', ' Wow, {{ username }}, you have a long name!', '{% else %}', ' Hello there!', '{% endif %}\n' ].join('\n') var dst = '\n\n Wow, John G. Chalmers-Smith, you have a long name!\n\n' return expect(engine.parseAndRender(src)).to.eventually.equal(dst) }) }) })