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 engine.parseAndRender('{{obj}}', ctx).should.eventually.equal('{"foo":"bar"}'); }); it('should output array', function() { return engine.parseAndRender('{{arr}}', ctx).should.eventually.equal('[-2,"a"]'); }); it('should output undefined to empty', function() { return engine.parseAndRender('foo{{zzz}}bar', ctx).should.eventually.equal('foobar'); }); it('should render as null when filter undefined', function() { return engine.parseAndRender('{{"foo" | filter1}}', ctx).should.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() { (function() { engine.parse('{{obj}}'); }).should.not.throw(); (function() { engine.parse('{{obj}}'); }).should.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 engine.render(template, ctx).should.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 engine.renderFile('/root/files/name.html', ctx).should.eventually.equal('My name is harttle.'); }); it('should use default extname', function() { return engine.renderFile('files/name', ctx).should.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 engine.parseAndRender(' \n \t{%if true%}foo{%endif%} ') .should.eventually.equal(' \nfoo '); }); it('should trim_right for tags when trim_right=true', function() { engine = Liquid({ trim_right: true }); return engine.parseAndRender('\t{%if true%}foo{%endif%} \n') .should.eventually.equal('\tfoo'); }); it('should trim all blanks before and after when greedy=true', function() { engine = Liquid({ greedy: true }); return engine.parseAndRender('\t{%-if true%}foo{%endif-%} \n \n') .should.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 engine.parseAndRender(src).should.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 engine.parseAndRender(src).should.eventually.equal(dst); }); }); });