chore: migrate test cases from Chai to Jest

src/template/value.spec.ts

@@ -0,0 +1,37 @@
+import { Liquid } from '../liquid'
+import { QuotedToken } from '../tokens'
+import { toPromise } from '../util'
+import { Context } from '../context'
+import { Value } from '../template'
+
+describe('Value', function () {
+  const liquid = new Liquid()
+
+  describe('#constructor()', function () {
+    it('should parse filters in value content', function () {
+      const f = new Value('o | foo: a: "a"', liquid)
+      expect(f.filters[0].name).toBe('foo')
+      expect(f.filters[0].args).toHaveLength(1)
+      const [k, v] = f.filters[0].args[0] as any
+      expect(k).toBe('a')
+      expect(v).toBeInstanceOf(QuotedToken)
+      expect((v as QuotedToken).getText()).toBe('"a"')
+    })
+  })
+
+  describe('#value()', function () {
+    it('should call chained filters correctly', async function () {
+      const date = jest.fn(() => 'y')
+      const time = jest.fn()
+      liquid.registerFilter('date', date)
+      liquid.registerFilter('time', time)
+      const tpl = new Value('foo.bar | date: "b" | time:2', liquid)
+      const scope = new Context({
+        foo: { bar: 'bar' }
+      })
+      await toPromise(tpl.value(scope, false))
+      expect(date).toHaveBeenCalledWith('bar', 'b')
+      expect(time).toHaveBeenCalledWith('y', 2)
+    })
+  })
+})