public async Task ItShallReturnBooksContainingTitle()
{
// Given
A.CallTo(() => nameGenerator.GenerateBookTitleAsync()).Returns(new ValueTask <string>("expected-book-title"));
// When
var books = await subjectUnderTest.Get();
// Then
books.Should().HaveCount(1);
books.All(b => b.Title == "expected-book-title").Should().BeTrue();
}