From cb97d152b84696d8410a55792b801f6dd8bc21da Mon Sep 17 00:00:00 2001
From: JiZhi <471695625@qq.com>
Date: Wed, 30 Oct 2019 23:36:17 +0800
Subject: [PATCH] test(effect): add test for nested stopped effect (#417)

---
 packages/reactivity/__tests__/effect.spec.ts | 22 ++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/packages/reactivity/__tests__/effect.spec.ts b/packages/reactivity/__tests__/effect.spec.ts
index 38ec27b4..0e09e2e6 100644
--- a/packages/reactivity/__tests__/effect.spec.ts
+++ b/packages/reactivity/__tests__/effect.spec.ts
@@ -686,6 +686,28 @@ describe('reactivity/effect', () => {
     expect(onStop).toHaveBeenCalled()
   })
 
+  it('stop: a stopped effect is nested in a normal effect', () => {
+    let dummy
+    const obj = reactive({ prop: 1 })
+    const runner = effect(() => {
+      dummy = obj.prop
+    })
+    stop(runner)
+    obj.prop = 2
+    expect(dummy).toBe(1)
+
+    // observed value in inner stopped effect
+    // will track outer effect as an dependency
+    effect(() => {
+      runner()
+    })
+    expect(dummy).toBe(2)
+
+    // notify outer effect to run
+    obj.prop = 3
+    expect(dummy).toBe(3)
+  })
+
   it('markNonReactive', () => {
     const obj = reactive({
       foo: markNonReactive({