From b603312ddf55899e8a75522d407c40474948ae0b Mon Sep 17 00:00:00 2001
From: Mark Erikson <mark@isquaredsoftware.com>
Date: Tue, 13 Aug 2019 23:10:40 -0400
Subject: [PATCH] Copy tests to todos slice

---
 src/features/todos/todosSlice.spec.js | 123 ++++++++++++++++++++++++++
 1 file changed, 123 insertions(+)
 create mode 100644 src/features/todos/todosSlice.spec.js

diff --git a/src/features/todos/todosSlice.spec.js b/src/features/todos/todosSlice.spec.js
new file mode 100644
index 0000000..1c4e73c
--- /dev/null
+++ b/src/features/todos/todosSlice.spec.js
@@ -0,0 +1,123 @@
+import todos from './todosSlice'
+
+describe('todos reducer', () => {
+  it('should handle initial state', () => {
+    expect(todos(undefined, {})).toEqual([])
+  })
+
+  it('should handle ADD_TODO', () => {
+    expect(
+      todos([], {
+        type: 'ADD_TODO',
+        text: 'Run the tests',
+        id: 0
+      })
+    ).toEqual([
+      {
+        text: 'Run the tests',
+        completed: false,
+        id: 0
+      }
+    ])
+
+    expect(
+      todos(
+        [
+          {
+            text: 'Run the tests',
+            completed: false,
+            id: 0
+          }
+        ],
+        {
+          type: 'ADD_TODO',
+          text: 'Use Redux',
+          id: 1
+        }
+      )
+    ).toEqual([
+      {
+        text: 'Run the tests',
+        completed: false,
+        id: 0
+      },
+      {
+        text: 'Use Redux',
+        completed: false,
+        id: 1
+      }
+    ])
+
+    expect(
+      todos(
+        [
+          {
+            text: 'Run the tests',
+            completed: false,
+            id: 0
+          },
+          {
+            text: 'Use Redux',
+            completed: false,
+            id: 1
+          }
+        ],
+        {
+          type: 'ADD_TODO',
+          text: 'Fix the tests',
+          id: 2
+        }
+      )
+    ).toEqual([
+      {
+        text: 'Run the tests',
+        completed: false,
+        id: 0
+      },
+      {
+        text: 'Use Redux',
+        completed: false,
+        id: 1
+      },
+      {
+        text: 'Fix the tests',
+        completed: false,
+        id: 2
+      }
+    ])
+  })
+
+  it('should handle TOGGLE_TODO', () => {
+    expect(
+      todos(
+        [
+          {
+            text: 'Run the tests',
+            completed: false,
+            id: 1
+          },
+          {
+            text: 'Use Redux',
+            completed: false,
+            id: 0
+          }
+        ],
+        {
+          type: 'TOGGLE_TODO',
+          id: 1
+        }
+      )
+    ).toEqual([
+      {
+        text: 'Run the tests',
+        completed: true,
+        id: 1
+      },
+      {
+        text: 'Use Redux',
+        completed: false,
+        id: 0
+      }
+    ])
+  })
+})