feature: get nyc, babel and coveralls working

test/unit/render.js

@@ -0,0 +1,102 @@
+import chai from 'chai'
+import chaiAsPromised from 'chai-as-promised'
+import sinonChai from 'sinon-chai'
+import sinon from 'sinon'
+import Tag from '../../src/tag.js'
+import {factory as scopeFactory} from '../../src/scope.js'
+import Filter from '../../src/filter'
+import Render from '../../src/render.js'
+import parser from '../../src/parser.js'
+
+chai.use(sinonChai)
+chai.use(chaiAsPromised)
+
+const expect = chai.expect
+const tag = Tag()
+const filter = Filter()
+const Template = parser(tag, filter)
+let render
+
+describe('render', function () {
+  beforeEach(function () {
+    filter.clear()
+    tag.clear()
+    render = Render()
+  })
+
+  describe('.renderTemplates()', function () {
+    it('should throw when scope undefined', function () {
+      expect(render.renderTemplates([])).to.be.rejectedWith(/scope undefined/)
+    })
+
+    it('should render html', function () {
+      const scope = scopeFactory({})
+      return expect(render.renderTemplates([{type: 'html', value: '<p>'}], scope)).to.eventually.equal('<p>')
+    })
+  })
+
+  describe('.renderValue()', function () {
+    it('should respect to .to_liquid() method', function () {
+      const scope = scopeFactory({
+        bar: { to_liquid: x => 'custom' }
+      })
+      const tpl = Template.parseValue('bar')
+      return expect(render.renderValue(tpl, scope)).to.eventually.equal('custom')
+    })
+    it('should stringify objects', function () {
+      const scope = scopeFactory({
+        foo: { obj: { arr: ['a', 2] } }
+      })
+      const tpl = Template.parseValue('foo')
+      return expect(render.renderValue(tpl, scope)).to.eventually.equal('{"obj":{"arr":["a",2]}}')
+    })
+    it('should skip circular property', function () {
+      const ctx = { foo: { num: 2 }, bar: 'bar' }
+      ctx.foo.circular = ctx
+
+      const scope = scopeFactory(ctx)
+      const tpl = Template.parseValue('foo')
+      return expect(render.renderValue(tpl, scope)).to.eventually.equal('{"num":2,"circular":{"bar":"bar"}}')
+    })
+    it('should skip function property', function () {
+      const scope = scopeFactory({obj: {foo: 'foo', bar: x => x}})
+      const tpl = Template.parseValue('obj')
+      return expect(render.renderValue(tpl, scope)).to.eventually.equal('{"foo":"foo"}')
+    })
+  })
+
+  describe('.evalValue()', function () {
+    it('should throw when scope undefined', function () {
+      expect(function () {
+        render.evalValue()
+      }).to.throw(/scope undefined/)
+    })
+    it('should eval value', function () {
+      filter.register('date', (l, r) => l + r)
+      filter.register('time', (l, r) => l + 3 * r)
+      const tpl = Template.parseValue('foo.bar[0] | date: "b" | time:2')
+      const scope = scopeFactory({
+        foo: { bar: ['a'] }
+      })
+      expect(render.evalValue(tpl, scope)).to.equal('ab6')
+    })
+    it('should reserve type', function () {
+      filter.register('arr', () => [1])
+      const tpl = Template.parseValue('"x" | arr')
+      expect(render.evalValue(tpl, scopeFactory())).to.deep.equal([1])
+    })
+    it('should eval filter with correct arguments', function () {
+      const date = sinon.stub().returns('y')
+      const time = sinon.spy()
+      filter.register('date', date)
+      filter.register('time', time)
+      const tpl = Template.parseValue('foo.bar | date: "b" | time:2')
+      const scope = scopeFactory({
+        foo: {bar: 'bar'}
+      })
+      render.evalValue(tpl, scope)
+      expect(date).to.have.been.calledWith('bar', 'b')
+      expect(time).to.have.been.calledWith('y', 2)
+    })
+  })
+})