GH-6452 Migrate installed_command.jsx to be pure and use Redux (#6903)

* Migrate installed_command.jsx to be pure and use Redux

* Add test for InstalledCommand component

* Fix failing test and typo

* Whoops. Revert back deleted filter

* Add filter test

* Remove commands related code from /stores/integration_store.jsx

webapp/tests/components/integrations/installed_command.test.jsx

@@ -0,0 +1,83 @@
+// Copyright (c) 2017-present Mattermost, Inc. All Rights Reserved.
+// See License.txt for license information.
+
+import React from 'react';
+import {shallow} from 'enzyme';
+
+import InstalledCommand from 'components/integrations/components/installed_command.jsx';
+
+describe('components/integrations/InstalledCommand', () => {
+    const emptyFunction = jest.fn();
+    const command = {
+        id: 'r5tpgt4iepf45jt768jz84djic',
+        display_name: 'test',
+        description: 'test',
+        trigger: 'trigger',
+        auto_complete: 'test',
+        auto_complete_hint: 'test',
+        token: 'testToken',
+        create_at: '1499722850203'
+    };
+
+    test('should match snapshot', () => {
+        const wrapper = shallow(
+            <InstalledCommand
+                team={{
+                    name: 'test'
+                }}
+                command={command}
+                onRegenToken={emptyFunction}
+                onDelete={emptyFunction}
+                filter={'trigger'}
+                creator={{
+                    username: 'test'
+                }}
+                canChange={true}
+            />
+        );
+        expect(wrapper).toMatchSnapshot();
+    });
+
+    test('should call onRegenToken function', () => {
+        const onRegenToken = jest.fn();
+        const wrapper = shallow(
+            <InstalledCommand
+                team={{
+                    name: 'test'
+                }}
+                command={command}
+                onRegenToken={onRegenToken}
+                onDelete={emptyFunction}
+                filter={''}
+                creator={{
+                    username: 'test'
+                }}
+                canChange={true}
+            />
+        );
+        wrapper.find('div.item-actions a').first().simulate('click', {preventDefault() {
+            return jest.fn();
+        }});
+
+        expect(onRegenToken).toBeCalled();
+    });
+
+    test('should filter out command', () => {
+        const wrapper = shallow(
+            <InstalledCommand
+                team={{
+                    name: 'test'
+                }}
+                command={command}
+                onRegenToken={emptyFunction}
+                onDelete={emptyFunction}
+                filter={'filter'}
+                creator={{
+                    username: 'test'
+                }}
+                canChange={true}
+            />
+        );
+        expect(wrapper).toMatchSnapshot();
+    });
+});