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[DataView] Initial list of unit tests for the DataView component #68205

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380 changes: 380 additions & 0 deletions packages/dataviews/src/test/dataviews.tsx
Original file line number Diff line number Diff line change
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/**
* External dependencies
*/
import { render, screen } from '@testing-library/react';
import userEvent from '@testing-library/user-event';

/**
* WordPress dependencies
*/
import { useMemo, useState } from '@wordpress/element';

/**
* Internal dependencies
*/
import DataViews from '../components/dataviews';
import { LAYOUT_GRID, LAYOUT_LIST, LAYOUT_TABLE } from '../constants';
import type { Action, View } from '../types';
import { filterSortAndPaginate } from '../filter-and-sort-data-view';

type Data = {
id: number;
title: string;
author?: number;
order?: number;
};

const DEFAULT_VIEW = {
type: 'table' as const,
search: '',
page: 1,
perPage: 10,
layout: {},
filters: [],
};

const defaultLayouts = {
[ LAYOUT_TABLE ]: {},
[ LAYOUT_GRID ]: {},
[ LAYOUT_LIST ]: {},
};

const fields = [
{
id: 'title',
label: 'Title',
type: 'text' as const,
},
{
id: 'order',
label: 'Order',
type: 'integer' as const,
},
{
id: 'author',
label: 'Author',
type: 'integer' as const,
elements: [
{ value: 1, label: 'Jane' },
{ value: 2, label: 'John' },
],
},
{
label: 'Image',
id: 'image',
render: ( { item }: { item: Data } ) => {
return (
<svg
width="400"
height="180"
data-testid={ 'image-field-' + item.id }
>
<rect
x="50"
y="20"
rx="20"
ry="20"
width="150"
height="150"
style={ { fill: 'red', opacity: 0.5 } }
/>
</svg>
);
},
enableSorting: false,
},
];

const actions: Action< Data >[] = [
{
id: 'delete',
label: 'Delete',
isDestructive: true,
supportsBulk: true,
RenderModal: () => <div>Modal Content</div>,
},
];

const data: Data[] = [
{
id: 1,
title: 'Hello World',
author: 1,
order: 1,
},
{
id: 2,
title: 'Homepage',
author: 2,
order: 1,
},
{
id: 3,
title: 'Posts',
author: 2,
order: 1,
},
];

function DataViewWrapper( {
view: additionalView,
...props
}: Partial< Parameters< typeof DataViews< Data > >[ 0 ] > ) {
const [ view, setView ] = useState< View >( {
...DEFAULT_VIEW,
fields: [ 'title', 'order', 'author' ],
...additionalView,
} );

const { data: shownData, paginationInfo } = useMemo( () => {
return filterSortAndPaginate( data, view, props.fields || fields );
}, [ view, props.fields ] );

const dataViewProps = {
getItemId: ( item: Data ) => item.id.toString(),
paginationInfo,
data: shownData,
view,
fields,
onChangeView: setView,
actions: [],
defaultLayouts,
...props,
};

return <DataViews { ...dataViewProps } />;
}

// jest.useFakeTimers();

describe( 'DataViews component', () => {
it( 'should show "No results" if data is empty', () => {
render( <DataViewWrapper data={ [] } /> );
expect( screen.getByText( 'No results' ) ).toBeInTheDocument();
} );

it( 'should filter results by "search" text, if field has enableGlobalSearch set to true', async () => {
const fieldsWithSearch = [
{
...fields[ 0 ],
enableGlobalSearch: true,
},
fields[ 1 ],
];
render(
<DataViewWrapper
fields={ fieldsWithSearch }
view={ { ...DEFAULT_VIEW, search: 'Hello' } }
/>
);
// Row count includes header.
expect( screen.getAllByRole( 'row' ).length ).toEqual( 2 );
expect( screen.getByText( 'Hello World' ) ).toBeInTheDocument();
} );

it( 'should display matched element label if field contains elements list', () => {
render(
<DataViewWrapper
data={ [ { id: 1, author: 3, title: 'Hello World' } ] }
fields={ [
{
id: 'author',
label: 'Author',
type: 'integer' as const,
elements: [
{ value: 1, label: 'Jane' },
{ value: 2, label: 'John' },
{ value: 3, label: 'Tim' },
],
},
] }
/>
);
expect( screen.getByText( 'Tim' ) ).toBeInTheDocument();
} );

it( 'should render custom render function if defined in field definition', () => {
render(
<DataViewWrapper
data={ [ { id: 1, title: 'Test Title' } ] }
fields={ [
{
id: 'title',
label: 'Title',
type: 'text' as const,
render: ( { item }: { item: Data } ) => {
return item.title?.toUpperCase();
},
},
] }
/>
);
expect( screen.getByText( 'TEST TITLE' ) ).toBeInTheDocument();
} );

describe( 'in table view', () => {
it( 'should display columns for each field', () => {
render( <DataViewWrapper /> );
const displayedColumnFields = fields.filter( ( field ) =>
[ 'title', 'order', 'author' ].includes( field.id )
);
for ( const field of displayedColumnFields ) {
expect(
screen.getByRole( 'button', { name: field.label } )
).toBeInTheDocument();
}
} );

it( 'should display the passed in data', () => {
render( <DataViewWrapper /> );
for ( const item of data ) {
expect(
screen.getAllByText( item.title )[ 0 ]
).toBeInTheDocument();
}
} );

it( 'should display title column if defined using titleField', () => {
render(
<DataViewWrapper
view={ {
...DEFAULT_VIEW,
fields: [ 'order', 'author' ],
titleField: 'title',
} }
/>
);
for ( const item of data ) {
expect(
screen.getAllByText( item.title )[ 0 ]
).toBeInTheDocument();
}
} );

it( 'should render actions column if actions are supported and passed in', () => {
render( <DataViewWrapper actions={ actions } /> );
expect( screen.getByText( 'Actions' ) ).toBeInTheDocument();
} );

it( 'should trigger the onClickItem callback if isItemClickable returns true and title field is clicked', async () => {
const onClickItemCallback = jest.fn();

render(
<DataViewWrapper
view={ {
...DEFAULT_VIEW,
fields: [ 'author' ],
titleField: 'title',
} }
actions={ actions }
isItemClickable={ () => true }
onClickItem={ onClickItemCallback }
/>
);
const titleField = screen.getByText( data[ 0 ].title );
const user = userEvent.setup();
await user.click( titleField );
expect( onClickItemCallback ).toHaveBeenCalledWith( data[ 0 ] );
} );
} );

describe( 'in grid view', () => {
it( 'should display the passed in data', () => {
render(
<DataViewWrapper
view={ {
type: 'grid',
} }
/>
);
for ( const item of data ) {
expect(
screen.getAllByText( item.title )[ 0 ]
).toBeInTheDocument();
}
} );

it( 'should render mediaField if defined', () => {
render(
<DataViewWrapper
view={ {
type: 'grid',
mediaField: 'image',
} }
/>
);
for ( const item of data ) {
expect(
screen.getByTestId( 'image-field-' + item.id )
).toBeInTheDocument();
}
} );

it( 'should render actions dropdown if actions are supported and passed in for each grid item', () => {
render(
<DataViewWrapper
view={ {
type: 'grid',
} }
actions={ actions }
/>
);
expect(
screen.getAllByRole( 'button', { name: 'Actions' } ).length
).toEqual( 3 );
} );

it( 'should trigger the onClickItem callback if isItemClickable returns true and a media field is clicked', async () => {
const mediaClickItemCallback = jest.fn();

render(
<DataViewWrapper
view={ {
type: 'grid',
mediaField: 'image',
} }
actions={ actions }
isItemClickable={ () => true }
onClickItem={ mediaClickItemCallback }
/>
);
const imageField = screen.getByTestId(
'image-field-' + data[ 0 ].id
);
const user = userEvent.setup();
await user.click( imageField );
expect( mediaClickItemCallback ).toHaveBeenCalledWith( data[ 0 ] );
} );
} );

describe( 'in list view', () => {
it( 'should display the passed in data', () => {
render(
<DataViewWrapper
view={ {
type: 'list',
} }
/>
);
for ( const item of data ) {
expect(
screen.getAllByText( item.title )[ 0 ]
).toBeInTheDocument();
}
} );

it( 'should render actions dropdown if actions are supported and passed in for each list item', () => {
render(
<DataViewWrapper
view={ {
type: 'list',
} }
actions={ actions }
/>
);
expect(
screen.getAllByRole( 'button', { name: 'Actions' } ).length
).toEqual( 3 );
} );
} );
} );
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