diff --git a/static_src/elements/help/mr-click-throughs/mr-click-throughs.test.js b/static_src/elements/help/mr-click-throughs/mr-click-throughs.test.js
new file mode 100644
index 0000000..e735380
--- /dev/null
+++ b/static_src/elements/help/mr-click-throughs/mr-click-throughs.test.js
@@ -0,0 +1,120 @@
+// Copyright 2019 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import {assert} from 'chai';
+import {MrClickThroughs} from './mr-click-throughs.js';
+import page from 'page';
+
+let element;
+
+describe('mr-click-throughs', () => {
+  beforeEach(() => {
+    element = document.createElement('mr-click-throughs');
+    document.body.appendChild(element);
+
+    sinon.stub(page, 'call');
+  });
+
+  afterEach(() => {
+    document.body.removeChild(element);
+
+    page.call.restore();
+  });
+
+  it('initializes', () => {
+    assert.instanceOf(element, MrClickThroughs);
+  });
+
+  it('stateChanged', () => {
+    const state = {userV0: {currentUser:
+      {prefs: new Map(), prefsLoaded: false}}};
+    element.stateChanged(state);
+    assert.deepEqual(element.prefs, new Map([['render_markdown', false]]));
+    assert.isFalse(element.prefsLoaded);
+  });
+
+  it('anon does not see privacy dialog', () => {
+    assert.isFalse(element._showPrivacyDialog);
+  });
+
+  it('signed in user sees no privacy dialog before prefs load', () => {
+    element.userDisplayName = 'user@example.com';
+    element.prefsLoaded = false;
+    assert.isFalse(element._showPrivacyDialog);
+  });
+
+  it('signed in user sees no privacy dialog if dismissal pref set', () => {
+    element.userDisplayName = 'user@example.com';
+    element.prefsLoaded = true;
+    element.prefs = new Map([['privacy_click_through', true]]);
+    assert.isFalse(element._showPrivacyDialog);
+  });
+
+  it('signed in user sees privacy dialog if dismissal pref missing', () => {
+    element.userDisplayName = 'user@example.com';
+    element.prefsLoaded = true;
+    element.prefs = new Map();
+    assert.isTrue(element._showPrivacyDialog);
+  });
+
+  it('anon does not see corp mode dialog', () => {
+    assert.isFalse(element._showCorpModeDialog);
+  });
+
+  it('signed in user sees no corp mode dialog before prefs load', () => {
+    element.userDisplayName = 'user@example.com';
+    element.prefsLoaded = false;
+    assert.isFalse(element._showCorpModeDialog);
+  });
+
+  it('signed in user sees no corp mode dialog if dismissal pref set', () => {
+    element.userDisplayName = 'user@example.com';
+    element.prefsLoaded = true;
+    element.prefs = new Map([['corp_mode_click_through', true]]);
+    assert.isFalse(element._showCorpModeDialog);
+  });
+
+  it('non-corp user sees no corp mode dialog', () => {
+    element.userDisplayName = 'user@example.com';
+    element.prefsLoaded = true;
+    element.prefs = new Map();
+    assert.isFalse(element._showCorpModeDialog);
+  });
+
+  it('corp user sees corp mode dialog if dismissal pref missing', () => {
+    element.userDisplayName = 'user@example.com';
+    element.prefsLoaded = true;
+    element.prefs = new Map([['public_issue_notice', true]]);
+    assert.isTrue(element._showCorpModeDialog);
+  });
+
+  it('corp user sees no corp mode dialog in members-only project', () => {
+    window.CS_env = {projectIsRestricted: true};
+    element.userDisplayName = 'user@example.com';
+    element.prefsLoaded = true;
+    element.prefs = new Map([['public_issue_notice', true]]);
+    assert.isFalse(element._showCorpModeDialog);
+  });
+
+  it('corp user sees corp mode dialog with no RVG warning', async () => {
+    element.userDisplayName = 'user@example.com';
+    element.prefsLoaded = true;
+    element.prefs = new Map([['public_issue_notice', true]]);
+
+    await element.updateComplete;
+    assert.notInclude(element.shadowRoot.innerHTML, 'altered');
+  });
+
+  it('corp user sees corp mode dialog with RVG warning', async () => {
+    element.userDisplayName = 'user@example.com';
+    element.prefsLoaded = true;
+    element.prefs = new Map([
+      ['public_issue_notice', true],
+      ['restrict_new_issues', true],
+    ]);
+
+    await element.updateComplete;
+    assert.include(element.shadowRoot.innerHTML, 'altered');
+  });
+});