From 7edcaf2db18951263f7ab7f9fe357606ac24217e Mon Sep 17 00:00:00 2001
From: David Idol <idolize@users.noreply.github.com>
Date: Mon, 17 Aug 2015 11:38:42 -0700
Subject: [PATCH 1/2] Add section on unit testing middleware to docs

---
 docs/recipes/WritingTests.md | 49 ++++++++++++++++++++++++++++++++++++
 1 file changed, 49 insertions(+)

diff --git a/docs/recipes/WritingTests.md b/docs/recipes/WritingTests.md
index e2f15596ee..af2f765643 100644
--- a/docs/recipes/WritingTests.md
+++ b/docs/recipes/WritingTests.md
@@ -140,6 +140,55 @@ describe('todos reducer', () => {
   });
 ```
 
+### Middleware
+
+Middleware functions wrap behavior of `dispatch` calls in Redux, so to test this modified behavior we need to mock the behavior of the `dispatch` call.
+
+#### Example
+
+```js
+import expect from 'expect';
+import * as types from '../../constants/ActionTypes';
+import singleDispatch from '../../middleware/singleDispatch';
+
+const fakeStore = fakeData => ({
+  getState() {
+    return fakeData;
+  }
+});
+
+const dispatchWithStoreOf = (storeData, action) => {
+  let dispatched = null;
+  const dispatch = singleDispatch(fakeStore(storeData))(action => dispatched = action);
+  dispatch(action);
+  return dispatched;
+};
+
+describe('middleware', () => {
+  it('should dispatch if store is empty', () => {
+    const action = {
+      type: types.ADD_TODO
+    };
+    
+    expect(
+      dispatchWithStoreOf({}, action)
+    ).toEqual(action);
+  });
+
+  it('should not dispatch if store already has type', () => {
+    const action = {
+      type: types.ADD_TODO
+    };
+    
+    expect(
+      dispatchWithStoreOf({
+        [types.ADD_TODO]: 'dispatched'
+      }, action)
+    ).toNotExist();
+  });
+});
+```
+
 ### Components
 
 A nice thing about React components is that they are usually small and only rely on their props. That makes them easy to test.

From b8d831d34b2626940cb3c9791ab4ac6df865dadc Mon Sep 17 00:00:00 2001
From: David Idol <idolize@users.noreply.github.com>
Date: Mon, 24 Aug 2015 11:41:51 -0700
Subject: [PATCH 2/2] Update WritingTests.md

Rename conflicting variable
---
 docs/recipes/WritingTests.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/recipes/WritingTests.md b/docs/recipes/WritingTests.md
index af2f765643..6a501e0026 100644
--- a/docs/recipes/WritingTests.md
+++ b/docs/recipes/WritingTests.md
@@ -159,7 +159,7 @@ const fakeStore = fakeData => ({
 
 const dispatchWithStoreOf = (storeData, action) => {
   let dispatched = null;
-  const dispatch = singleDispatch(fakeStore(storeData))(action => dispatched = action);
+  const dispatch = singleDispatch(fakeStore(storeData))(actionAttempt => dispatched = actionAttempt);
   dispatch(action);
   return dispatched;
 };