From 6827eb4903404f660c7a628b93844e459a594d22 Mon Sep 17 00:00:00 2001
From: Michael Peyper <mpeyper7@gmail.com>
Date: Thu, 3 Dec 2020 22:48:43 +1100
Subject: [PATCH 1/3] Capture all results a rendered hook produces.

Fixes #461
---
 src/pure.js                | 17 ++++++++++-------
 test/resultHistory.test.js | 34 ++++++++++++++++++++++++++++++++++
 2 files changed, 44 insertions(+), 7 deletions(-)
 create mode 100644 test/resultHistory.test.js

diff --git a/src/pure.js b/src/pure.js
index 53ef84c5..435d0736 100644
--- a/src/pure.js
+++ b/src/pure.js
@@ -21,25 +21,28 @@ function Fallback() {
 }
 
 function resultContainer() {
-  let value = null
-  let error = null
+  const results = []
   const resolvers = []
 
   const result = {
+    get all() {
+      return results.map(({ value, error }) => error || value)
+    },
     get current() {
+      const { value, error } = results[results.length - 1]
       if (error) {
         throw error
       }
       return value
     },
     get error() {
+      const { error } = results[results.length - 1]
       return error
     }
   }
 
-  const updateResult = (val, err) => {
-    value = val
-    error = err
+  const updateResult = (value, error) => {
+    results.push({ value, error })
     resolvers.splice(0, resolvers.length).forEach((resolve) => resolve())
   }
 
@@ -48,8 +51,8 @@ function resultContainer() {
     addResolver: (resolver) => {
       resolvers.push(resolver)
     },
-    setValue: (val) => updateResult(val),
-    setError: (err) => updateResult(undefined, err)
+    setValue: (value) => updateResult(value),
+    setError: (error) => updateResult(undefined, error)
   }
 }
 
diff --git a/test/resultHistory.test.js b/test/resultHistory.test.js
new file mode 100644
index 00000000..ac37a0a2
--- /dev/null
+++ b/test/resultHistory.test.js
@@ -0,0 +1,34 @@
+import { renderHook } from 'src'
+
+describe('result history tests', () => {
+  let count = 0
+  function useCounter() {
+    const result = count++
+    if (result === 2) {
+      throw Error('expected')
+    }
+    return result
+  }
+
+  test('should capture all renders states of hook', () => {
+    const { result, rerender } = renderHook(() => useCounter())
+
+    expect(result.current).toEqual(0)
+    expect(result.all).toEqual([0])
+
+    rerender()
+
+    expect(result.current).toBe(1)
+    expect(result.all).toEqual([0, 1])
+
+    rerender()
+
+    expect(result.error).toEqual(Error('expected'))
+    expect(result.all).toEqual([0, 1, Error('expected')])
+
+    rerender()
+
+    expect(result.current).toBe(3)
+    expect(result.all).toEqual([0, 1, Error('expected'), 3])
+  })
+})

From 110a4799387b15662bf089bb2806c29b21405dd3 Mon Sep 17 00:00:00 2001
From: Josh Ellis <joshua.ellis18@gmail.com>
Date: Thu, 3 Dec 2020 23:32:32 +0000
Subject: [PATCH 2/3] docs: update to include 'all' value returned from
 renderHook

---
 docs/api-reference.md | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/docs/api-reference.md b/docs/api-reference.md
index b04f3739..42b7288b 100644
--- a/docs/api-reference.md
+++ b/docs/api-reference.md
@@ -63,13 +63,17 @@ The `renderHook` function returns an object that has the following properties:
 
 ```js
 {
+  all: Array<any>
   current: any,
   error: Error
 }
 ```
 
-The `current` value or the `result` will reflect whatever is returned from the `callback` passed to
-`renderHook`. Any thrown values will be reflected in the `error` value of the `result`.
+The `current` value or the `result` will reflect the latest of whatever is returned from the
+`callback` passed to `renderHook`. Any thrown values from the latest call will be reflected in the
+`error` value of the `result`. The `all` value is an array containing all the returns (including the
+most recent) from the callback. These could be `result` or an `error` depending on what the callback
+returned at the time.
 
 ### `rerender`
 

From 8090d1a45c771b0a3bb8a75b252598da3bfabf42 Mon Sep 17 00:00:00 2001
From: Michael Peyper <mpeyper7@gmail.com>
Date: Mon, 7 Dec 2020 20:48:34 +1100
Subject: [PATCH 3/3] fixed test import after repo changes

---
 test/resultHistory.test.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/test/resultHistory.test.js b/test/resultHistory.test.js
index ac37a0a2..80b9b10b 100644
--- a/test/resultHistory.test.js
+++ b/test/resultHistory.test.js
@@ -1,4 +1,4 @@
-import { renderHook } from 'src'
+import { renderHook } from '../src'
 
 describe('result history tests', () => {
   let count = 0