ご覧のとおり、データを結合して新しいオブジェクトを作成する次のlinqクエリを作成しました。
var translations = from t in context.Translations
join token in context.Tokens on t.Guid equals token.Guid
join t2 in context.Translations on new { t.Guid, LanguageCode = "fr" } equals new { t2.Guid, t2.LanguageCode} into j //TODO: fr needs to be replaced by the language of the translators account
from j2 in j.DefaultIfEmpty()
where t.LanguageCode == String.Empty
orderby t.Text
select new TranslationView
{
Guid = t.Guid,
LanguageCode = j2.LanguageCode,
SourceText = t.Text,
Translation = j2.Text,
IsNew = j2.Text == null,
Notes = token.Notes,
Required = token.Required,
Type = (Token.TokenType)token.Type,
Location = (Token.LocationType)token.Location
};
問題は、Rhino.Mocksを使用して単体テストを作成しようとすると、エラーが返されることです。Object reference not set to an instance of an object.
だから私の質問は、このクエリを書くことができるより良い方法はありますか?実際の状況とユニットテストの状況の両方で機能する方法はありますか?
ビットに値を渡してみたところDefaultIfEmpty()
、Mockで機能するようになりましたが、メインコードが失敗しました。
ユニットテストコードの編集:
[Test]
public void Build_Translation_List_TwoItems_Context()
{
//Arrange: Setup context
var context = setupContext();
//Act: Pass the context through
var result = TranslationHelpers.BuildTranslationList(context, 1);
//Result
result.TranslationList.Count.ShouldEqual(2);
result.PagingInfo.TotalItems.ShouldEqual(2);
}
SetupContextメソッド:
public static ITranslationContext setupContext()
{
var context = new Mock<ITranslationContext>();
context.SetupProperty(x => x.Tokens, new UnitTestHelpers.FakeDbSet<Token>
{
new Token
{
DateAdded = DateTime.Now,
Guid = Guid.Parse("f3099a43-e12d-4ea3-ba06-265fde807f03"),
LastUpdated = DateTime.Now,
Location = (short)0,
Type = (short)0,
LocationDescription = "Test 1",
Notes = "Testing 1",
Required = "Testing"
},
new Token
{
DateAdded = DateTime.Now,
Guid = Guid.Parse("7D6937D8-F7E1-4B92-934E-465683874B65"),
LastUpdated = DateTime.Now,
Location = (short)0,
Type = (short)0,
LocationDescription = "Test 3",
Notes = "Testing 3",
Required = "Testing"
},
});
context.SetupProperty(x => x.Translations, new UnitTestHelpers.FakeDbSet<Translation>
{
new Translation{Guid = Guid.Parse("f3099a43-e12d-4ea3-ba06-265fde807f03"), LanguageCode = String.Empty, Text = "Testing 1"},
new Translation{Guid = Guid.Parse("f3099a43-e12d-4ea3-ba06-265fde807f03"), LanguageCode = "fr", Text = ""},
new Translation{Guid = Guid.Parse("7D6937D8-F7E1-4B92-934E-465683874B65"), LanguageCode = String.Empty, Text = "Testing 3"},
new Translation{Guid = Guid.Parse("7D6937D8-F7E1-4B92-934E-465683874B67"), LanguageCode = "fr", Text = "Testing 4"}
});
return context.Object;
}
どんな助けでも大歓迎です。