public async Task GetAvatarAsync_should_generate_avatar_if_none_found()
{
var fileSystem = new MockFileSystem();
_cache = new AvatarPersistentCache(_inner, _avatarGenerator, fileSystem);
fileSystem.Directory.Exists(_folderPath).Should().BeFalse();
Assert.AreSame(_imgGenerated, await _cache.GetAvatarAsync(_emailMissing, _nameMissing, _size));
}
public async Task GetAvatarAsync_should_create_if_folder_absent()
{
var fileSystem = new MockFileSystem();
_cache = new AvatarPersistentCache(_inner, Substitute.For <IAvatarGenerator>(), fileSystem);
fileSystem.Directory.Exists(_folderPath).Should().BeFalse();
Assert.AreSame(_img1, await _cache.GetAvatarAsync(_email1, _name1, _size));
fileSystem.Directory.Exists(_folderPath).Should().BeTrue();
}
public async Task GetAvatarAsync_should_create_image_from_stream()
{
var fileSystem = new MockFileSystem();
_cache = new AvatarPersistentCache(_inner, Substitute.For <IAvatarGenerator>(), fileSystem);
fileSystem.Directory.Exists(_folderPath).Should().BeFalse();
Assert.AreSame(_img1, await _cache.GetAvatarAsync(_email1, _name1, _size));
fileSystem.Directory.Exists(_folderPath).Should().BeTrue();
fileSystem.File.Exists(Path.Combine(_folderPath, $"{_email1}.{_size}px.png")).Should().BeTrue();
}