1 files changed, 48 insertions, 0 deletions
diff --git a/test/content/reducers/follow-controller.test.js b/test/content/reducers/follow-controller.test.js
new file mode 100644
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+++ b/test/content/reducers/follow-controller.test.js
@@ -0,0 +1,48 @@
+import { expect } from "chai";
+import actions from 'content/actions';
+import followControllerReducer from 'content/reducers/follow-controller';
+
+describe('follow-controller reducer', () => {
+  it ('returns the initial state', () => {
+    let state = followControllerReducer(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_CONTROLLER_ENABLE', () => {
+    let action = { type: actions.FOLLOW_CONTROLLER_ENABLE, newTab: true };
+    let state = followControllerReducer({ enabled: false, newTab: false }, action);
+    expect(state).to.have.property('enabled', true);
+    expect(state).to.have.property('newTab', true);
+    expect(state).to.have.property('keys', '');
+  });
+
+  it ('returns next state for FOLLOW_CONTROLLER_DISABLE', () => {
+    let action = { type: actions.FOLLOW_CONTROLLER_DISABLE };
+    let state = followControllerReducer({ enabled: true }, action);
+    expect(state).to.have.property('enabled', false);
+  });
+
+  it ('returns next state for FOLLOW_CONTROLLER_KEY_PRESS', () => {
+    let action = { type: actions.FOLLOW_CONTROLLER_KEY_PRESS, key: 'a'};
+    let state = followControllerReducer({ keys: '' }, action);
+    expect(state).to.have.deep.property('keys', 'a');
+
+    action = { type: actions.FOLLOW_CONTROLLER_KEY_PRESS, key: 'b'};
+    state = followControllerReducer(state, action);
+    expect(state).to.have.deep.property('keys', 'ab');
+  });
+
+  it ('returns next state for FOLLOW_CONTROLLER_BACKSPACE', () => {
+    let action = { type: actions.FOLLOW_CONTROLLER_BACKSPACE };
+    let state = followControllerReducer({ keys: 'ab' }, action);
+    expect(state).to.have.deep.property('keys', 'a');
+
+    state = followControllerReducer(state, action);
+    expect(state).to.have.deep.property('keys', '');
+
+    state = followControllerReducer(state, action);
+    expect(state).to.have.deep.property('keys', '');
+  });
+});