public async Task DeleteWordsAsync_ReturnsIdSetOfDeletedWhenExist()
{
const int count = 5;
const int deletedCount = 3;
var expected = (await FeedTestData(_context, count)).OfType <Noun>().Skip(count - deletedCount).ToList();
var service = new WordsService(_context);
var actual = await service.DeleteWordsAsync(expected);
Assert.Equal(deletedCount, actual.Count);
Assert.Equal(count - deletedCount, _context.Set <Noun>().Count());
actual.Should().Equal(expected.Select(w => w.Id));
}
public async Task DeleteWordsAsync_ReturnsEmptyIdSetOfDeletedWhenDoNotExist()
{
await FeedTestData(_context, 5);
var nonExistent = new List <Adjective>
{
GenerateWord <Adjective>(false, false),
GenerateWord <Adjective>(false, false),
GenerateWord <Adjective>(false, false)
};
var service = new WordsService(_context);
var actual = await service.DeleteWordsAsync(nonExistent);
Assert.Empty(actual);
}
public async Task DeleteWordsAsync_ReturnsPartialIdSetOfDeletedWhenSomeExist()
{
const int count = 5;
const int deletedCount = 3;
var expected = (await FeedTestData(_context, count)).OfType <Adverb>().Skip(count - deletedCount).ToList();
var nonExistent = new List <Adverb>
{
GenerateWord <Adverb>(false, false),
GenerateWord <Adverb>(false, false),
GenerateWord <Adverb>(false, false)
};
var service = new WordsService(_context);
var actual = await service.DeleteWordsAsync(expected.Concat(nonExistent).ToList());
Assert.Equal(deletedCount, actual.Count);
Assert.Equal(count - deletedCount, _context.Set <Adverb>().Count());
actual.Should().Equal(expected.Select(w => w.Id));
}