pit('errors when no posts are returned', () => {
const data = {
posts: []
};
fetch.mockReturnValue(Promise.resolve(data));
return fetchPosts(1)
.then(() => {
fail('Expected Promise to be rejected');
}, error => {
expect(error).toBeInstanceOf(NetworkError);
});
});
pit('normalizes the response', () => {
const data = {
posts: [
{
slug: '/post-1/',
name: 'Post 1',
author: {
id: 1,
name: 'Author 1'
}
},
{
slug: '/post-2/',
name: 'Post 2',
author: {
id: 1,
name: 'Author 1'
}
},
{
slug: '/post-3/',
name: 'Post 3',
author: {
id: 2,
name: 'Author 2'
}
}
]
};
fetch.mockReturnValue(Promise.resolve(data));
return fetchPosts(1)
.then(response => {
expect(response).toEqual({
entities: {
posts: {
'/post-1/': {
slug: '/post-1/',
name: 'Post 1',
author: 1
},
'/post-2/': {
slug: '/post-2/',
name: 'Post 2',
author: 1
},
'/post-3/': {
slug: '/post-3/',
name: 'Post 3',
author: 2
}
},
authors: {
1: {
id: 1,
name: 'Author 1'
},
2: {
id: 2,
name: 'Author 2'
}
}
},
result: {
posts: ['/post-1/', '/post-2/', '/post-3/']
}
});
});
});
it('fetches the page', () => {
fetchPosts(1);
expect(fetch.mock.calls[0][0]).toMatch(/page=1/);
fetchPosts(2);
expect(fetch.mock.calls[1][0]).toMatch(/page=2/);
});