nexo/apps/mattermost/app/hooks/useCollapsibleHeader.test.tsx

90 lines
3.2 KiB
TypeScript

// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
// See LICENSE.txt for license information.
import {act, renderHook} from '@testing-library/react-native';
import ViewConstants from '@constants/view';
import * as DeviceFunctions from './device';
import {useCollapsibleHeader} from './header';
const LARGE_HEADER_TITLE_HEIGHT = 128;
const HEADER_OFFSET = LARGE_HEADER_TITLE_HEIGHT - ViewConstants.DEFAULT_HEADER_HEIGHT;
describe('useCollapsibleHeader', () => {
const commonHookResponse = {
largeHeight: LARGE_HEADER_TITLE_HEIGHT,
scrollRef: expect.any(Function),
scrollValue: expect.objectContaining({value: 0}),
onScroll: expect.any(Object),
hideHeader: expect.any(Function),
lockValue: 0,
unlock: expect.any(Function),
headerOffset: HEADER_OFFSET,
scrollEnabled: expect.objectContaining({value: true}),
setAutoScroll: expect.any(Function),
};
it('should return the correct values with isLargeTitle is true', () => {
const {result} = renderHook(() => useCollapsibleHeader(true));
expect(result.current).toEqual({
defaultHeight: ViewConstants.DEFAULT_HEADER_HEIGHT,
scrollPaddingTop: LARGE_HEADER_TITLE_HEIGHT,
headerHeight: expect.objectContaining({
value: LARGE_HEADER_TITLE_HEIGHT,
}),
...commonHookResponse,
});
});
it('should return the correct values with isLargeTitle is false', () => {
const {result} = renderHook(() => useCollapsibleHeader(false));
expect(result.current).toEqual({
defaultHeight: ViewConstants.DEFAULT_HEADER_HEIGHT,
scrollPaddingTop: ViewConstants.DEFAULT_HEADER_HEIGHT,
headerHeight: expect.objectContaining({
value: ViewConstants.DEFAULT_HEADER_HEIGHT,
}),
...commonHookResponse,
});
});
it('should return the correct values with isLargeTitle is true, and on a tablet', () => {
jest.spyOn(DeviceFunctions, 'useIsTablet').mockReturnValue(true);
const {result} = renderHook(() => useCollapsibleHeader(true));
expect(result.current).toEqual({
defaultHeight: ViewConstants.TABLET_HEADER_HEIGHT,
scrollPaddingTop: LARGE_HEADER_TITLE_HEIGHT,
headerHeight: expect.objectContaining({
value: LARGE_HEADER_TITLE_HEIGHT,
}),
...commonHookResponse,
});
});
it('should change the lock value when hideHeader is called', () => {
const {result} = renderHook(() => useCollapsibleHeader(true));
expect(result.current.lockValue).toBe(0);
act(() => result.current.hideHeader(true));
expect(result.current.lockValue).toBe(ViewConstants.DEFAULT_HEADER_HEIGHT);
});
it('should reset the lockValue when unlock is called', () => {
const {result} = renderHook(() => useCollapsibleHeader(true));
act(() => result.current.hideHeader(true));
expect(result.current.lockValue).toBe(ViewConstants.DEFAULT_HEADER_HEIGHT);
act(() => result.current.unlock());
expect(result.current.lockValue).toBe(0);
});
});