diff --git a/static_src/elements/issue-detail/mr-approval-card/mr-approval-card.test.js b/static_src/elements/issue-detail/mr-approval-card/mr-approval-card.test.js
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+++ b/static_src/elements/issue-detail/mr-approval-card/mr-approval-card.test.js
@@ -0,0 +1,245 @@
+// 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 {MrApprovalCard} from './mr-approval-card.js';
+
+let element;
+
+describe('mr-approval-card', () => {
+  beforeEach(() => {
+    element = document.createElement('mr-approval-card');
+    document.body.appendChild(element);
+  });
+
+  afterEach(() => {
+    document.body.removeChild(element);
+  });
+
+  it('initializes', () => {
+    assert.instanceOf(element, MrApprovalCard);
+  });
+
+  it('_isApprover true when user is an approver', () => {
+    // User not in approver list.
+    element.approvers = [
+      {displayName: 'tester@user.com'},
+      {displayName: 'test@notuser.com'},
+      {displayName: 'hello@world.com'},
+    ];
+    element.user = {displayName: 'test@user.com', groups: []};
+    assert.isFalse(element._isApprover);
+
+    // Use is in approver list.
+    element.approvers = [
+      {displayName: 'tester@user.com'},
+      {displayName: 'test@notuser.com'},
+      {displayName: 'hello@world.com'},
+      {displayName: 'test@user.com'},
+    ];
+    assert.isTrue(element._isApprover);
+
+    // User's group is not in the list.
+    element.approvers = [
+      {displayName: 'tester@user.com'},
+      {displayName: 'nongroup@group.com'},
+      {displayName: 'group@nongroup.com'},
+      {displayName: 'ignore@test.com'},
+    ];
+    element.user = {
+      displayName: 'test@user.com',
+      groups: [
+        {displayName: 'group@group.com'},
+        {displayName: 'test@group.com'},
+        {displayName: 'group@user.com'},
+      ],
+    };
+    assert.isFalse(element._isApprover);
+
+    // User's group is in the list.
+    element.approvers = [
+      {displayName: 'tester@user.com'},
+      {displayName: 'group@group.com'},
+      {displayName: 'test@notuser.com'},
+    ];
+    element.user = {
+      displayName: 'test@user.com',
+      groups: [
+        {displayName: 'group@group.com'},
+      ],
+    };
+    assert.isTrue(element._isApprover);
+  });
+
+  it('approvals change color based on status', async () => {
+    // Initialize dependent CSS property from a stylesheet not included in
+    // our testing environment.
+    element.style.setProperty('--chops-purple-50', '#f3e5f5');
+
+    element.statusEnum = 'NEEDS_REVIEW';
+    await element.updateComplete;
+
+    const header = element.querySelector('button.header');
+
+    // Purple. Note that Chrome uses RGB for computed styles regardless of
+    // underlying CSS.
+    assert.equal(
+      window.getComputedStyle(header).getPropertyValue('background-color'),
+      'rgb(243, 229, 245)');
+
+    element.statusEnum = 'APPROVED';
+    await element.updateComplete;
+
+    // Green.
+    assert.equal(
+      window.getComputedStyle(header).getPropertyValue('background-color'),
+      'rgb(235, 244, 215)');
+  });
+
+  it('site admins have approver privileges', async () => {
+    await element.updateComplete;
+
+    const notice = element.querySelector('.approver-notice');
+    assert.equal(notice.textContent.trim(), '');
+
+    element.user = {isSiteAdmin: true};
+    await element.updateComplete;
+
+    assert.isTrue(element._hasApproverPrivileges);
+
+    assert.equal(notice.textContent.trim(),
+        'Your site admin privileges give you full access to edit this approval.',
+    );
+  });
+
+  it('site admins see all approval statuses except NotSet', () => {
+    element.user = {isSiteAdmin: true};
+
+    assert.isFalse(element._isApprover);
+
+    element.statusEnum = 'NEEDS_REVIEW';
+
+    assert.equal(element._availableStatuses.length, 7);
+    assert.equal(element._availableStatuses[0].status, 'NeedsReview');
+    assert.equal(element._availableStatuses[1].status, 'NA');
+    assert.equal(element._availableStatuses[2].status, 'ReviewRequested');
+    assert.equal(element._availableStatuses[3].status, 'ReviewStarted');
+    assert.equal(element._availableStatuses[4].status, 'NeedInfo');
+    assert.equal(element._availableStatuses[5].status, 'Approved');
+    assert.equal(element._availableStatuses[6].status, 'NotApproved');
+  });
+
+  it('approvers see all approval statuses except NotSet', () => {
+    element.user = {isSiteAdmin: false, displayName: 'test@email.com'};
+    element.approvers = [{displayName: 'test@email.com'}];
+
+    assert.isTrue(element._isApprover);
+
+    element.statusEnum = 'NEEDS_REVIEW';
+
+    assert.equal(element._availableStatuses.length, 7);
+    assert.equal(element._availableStatuses[0].status, 'NeedsReview');
+    assert.equal(element._availableStatuses[1].status, 'NA');
+    assert.equal(element._availableStatuses[2].status, 'ReviewRequested');
+    assert.equal(element._availableStatuses[3].status, 'ReviewStarted');
+    assert.equal(element._availableStatuses[4].status, 'NeedInfo');
+    assert.equal(element._availableStatuses[5].status, 'Approved');
+    assert.equal(element._availableStatuses[6].status, 'NotApproved');
+  });
+
+  it('non-approvers see non-restricted approval statuses', () => {
+    element.user = {isSiteAdmin: false, displayName: 'test@email.com'};
+    element.approvers = [{displayName: 'test@otheremail.com'}];
+
+    assert.isFalse(element._isApprover);
+
+    element.statusEnum = 'NEEDS_REVIEW';
+
+    assert.equal(element._availableStatuses.length, 4);
+    assert.equal(element._availableStatuses[0].status, 'NeedsReview');
+    assert.equal(element._availableStatuses[1].status, 'ReviewRequested');
+    assert.equal(element._availableStatuses[2].status, 'ReviewStarted');
+    assert.equal(element._availableStatuses[3].status, 'NeedInfo');
+  });
+
+  it('non-approvers see restricted approval status when set', () => {
+    element.user = {isSiteAdmin: false, displayName: 'test@email.com'};
+    element.approvers = [{displayName: 'test@otheremail.com'}];
+
+    assert.isFalse(element._isApprover);
+
+    element.statusEnum = 'APPROVED';
+
+    assert.equal(element._availableStatuses.length, 5);
+    assert.equal(element._availableStatuses[0].status, 'NeedsReview');
+    assert.equal(element._availableStatuses[1].status, 'ReviewRequested');
+    assert.equal(element._availableStatuses[2].status, 'ReviewStarted');
+    assert.equal(element._availableStatuses[3].status, 'NeedInfo');
+    assert.equal(element._availableStatuses[4].status, 'Approved');
+  });
+
+  it('expands to show focused comment', async () => {
+    element.focusId = 'c4';
+    element.fieldName = 'field';
+    element.comments = [
+      {
+        sequenceNum: 1,
+        approvalRef: {fieldName: 'other-field'},
+      },
+      {
+        sequenceNum: 2,
+        approvalRef: {fieldName: 'field'},
+      },
+      {
+        sequenceNum: 3,
+      },
+      {
+        sequenceNum: 4,
+        approvalRef: {fieldName: 'field'},
+      },
+    ];
+
+    await element.updateComplete;
+
+    assert.isTrue(element.opened);
+  });
+
+  it('does not expand to show focused comment on other elements', async () => {
+    element.focusId = 'c3';
+    element.comments = [
+      {
+        sequenceNum: 1,
+        approvalRef: {fieldName: 'other-field'},
+      },
+      {
+        sequenceNum: 2,
+        approvalRef: {fieldName: 'field'},
+      },
+      {
+        sequenceNum: 4,
+        approvalRef: {fieldName: 'field'},
+      },
+    ];
+
+    await element.updateComplete;
+
+    assert.isFalse(element.opened);
+  });
+
+  it('mr-edit-metadata is displayed if user has addissuecomment', async () => {
+    element.issuePermissions = ['addissuecomment'];
+
+    await element.updateComplete;
+
+    assert.isNotNull(element.querySelector('mr-edit-metadata'));
+  });
+
+  it('mr-edit-metadata is hidden if user has no addissuecomment', async () => {
+    element.issuePermissions = [];
+
+    await element.updateComplete;
+
+    assert.isNull(element.querySelector('mr-edit-metadata'));
+  });
+});