Live location sharing - extract zoom buttons into component (#8235)

* extract out zoombuttons component

* newline

Signed-off-by: Kerry Archibald <kerrya@element.io>

* stylelint

Signed-off-by: Kerry Archibald <kerrya@element.io>

* remove skinned sdk

Signed-off-by: Kerry Archibald <kerrya@element.io>

test/components/views/location/ZoomButtons-test.tsx

@@ -0,0 +1,63 @@
+/*
+Copyright 2022 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import React from 'react';
+import { mount } from 'enzyme';
+import maplibregl from 'maplibre-gl';
+import { act } from 'react-dom/test-utils';
+
+import ZoomButtons from '../../../../src/components/views/location/ZoomButtons';
+import { findByTestId } from '../../../test-utils';
+
+describe('<ZoomButtons />', () => {
+    const mockMap = new maplibregl.Map();
+    const defaultProps = {
+        map: mockMap,
+    };
+    const getComponent = (props = {}) =>
+        mount(<ZoomButtons {...defaultProps} {...props} />);
+
+    beforeEach(() => {
+        jest.clearAllMocks();
+    });
+
+    it('renders buttons', () => {
+        const component = getComponent();
+        expect(component).toMatchSnapshot();
+    });
+
+    it('calls map zoom in on zoom in click', () => {
+        const component = getComponent();
+
+        act(() => {
+            findByTestId(component, 'map-zoom-in-button').at(0).simulate('click');
+        });
+
+        expect(mockMap.zoomIn).toHaveBeenCalled();
+        expect(component).toBeTruthy();
+    });
+
+    it('calls map zoom out on zoom out click', () => {
+        const component = getComponent();
+
+        act(() => {
+            findByTestId(component, 'map-zoom-out-button').at(0).simulate('click');
+        });
+
+        expect(mockMap.zoomOut).toHaveBeenCalled();
+        expect(component).toBeTruthy();
+    });
+});