test: cases for async variables

test/integration/builtin/tags/if.ts

@@ -142,4 +142,10 @@ describe('tags/if', function () {
     const html = liquid.parseAndRenderSync(src, scope)
     return expect(html).to.equal('true')
   })
+  it('should support async variables', async () => {
+    const src = `{%if var == 'var' %}success{%endif%}`
+    const scope = { 'var': Promise.resolve('var') }
+    const html = await liquid.parseAndRender(src, scope)
+    return expect(html).to.equal('success')
+  })
 })

test/integration/liquid/liquid.ts

@@ -52,6 +52,11 @@ describe('Liquid', function () {
       const src = '{{ foo }}'
       return expect(engine.parseAndRender(src, {}, { strictVariables: true })).rejectedWith(/undefined variable/)
     })
+    it('should support async variables in output', async () => {
+      const src = '{{ foo }}'
+      const html = await engine.parseAndRender(src, { foo: Promise.resolve('FOO') })
+      expect(html).to.equal('FOO')
+    })
   })
   describe('#express()', function () {
     const liquid = new Liquid({ root: '/root' })