From fc36195e79d5d7e59df3a507e05860ae6ca1495a Mon Sep 17 00:00:00 2001
From: Shin'ya Ueoka <ueokande@i-beam.org>
Date: Mon, 2 Oct 2017 21:53:12 +0900
Subject: add follow action and reducers test

---
 test/reducers/follow.test.js | 47 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 47 insertions(+)
 create mode 100644 test/reducers/follow.test.js

(limited to 'test/reducers')

diff --git a/test/reducers/follow.test.js b/test/reducers/follow.test.js
new file mode 100644
index 0000000..19a1300
--- /dev/null
+++ b/test/reducers/follow.test.js
@@ -0,0 +1,47 @@
+import { expect } from "chai";
+import actions from '../../src/actions';
+import followReducer from '../../src/reducers/follow';
+
+describe('follow reducer', () => {
+  it ('returns the initial state', () => {
+    let state = followReducer(undefined, {});
+    expect(state).to.have.property('enabled', false);
+    expect(state).to.have.property('newTab');
+    expect(state).to.have.deep.property('keys', []);
+  });
+
+  it ('returns next state for FOLLOW_ENABLE', () => {
+    let action = { type: actions.FOLLOW_ENABLE, newTab: true };
+    let state = followReducer({ enabled: false, newTab: false }, action);
+    expect(state).to.have.property('enabled', true);
+    expect(state).to.have.property('newTab', true);
+  });
+
+  it ('returns next state for FOLLOW_DISABLE', () => {
+    let action = { type: actions.FOLLOW_DISABLE };
+    let state = followReducer({ enabled: true }, action);
+    expect(state).to.have.property('enabled', false);
+  });
+
+  it ('returns next state for FOLLOW_KEY_PRESS', () => {
+    let action = { type: actions.FOLLOW_KEY_PRESS, key: 100};
+    let state = followReducer({ keys: [] }, action);
+    expect(state).to.have.deep.property('keys', [100]);
+
+    action = { type: actions.FOLLOW_KEY_PRESS, key: 200};
+    state = followReducer(state, action);
+    expect(state).to.have.deep.property('keys', [100, 200]);
+  });
+
+  it ('returns next state for FOLLOW_BACKSPACE', () => {
+    let action = { type: actions.FOLLOW_BACKSPACE };
+    let state = followReducer({ keys: [100, 200] }, action);
+    expect(state).to.have.deep.property('keys', [100]);
+
+    state = followReducer(state, action);
+    expect(state).to.have.deep.property('keys', []);
+
+    state = followReducer(state, action);
+    expect(state).to.have.deep.property('keys', []);
+  });
+});
-- 
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