public void FirstAfterWhere()
{
// Arrange
var translator = new FirstTranslator(_nameChanges);
Expression <Func <Country> > query = () => _countries.Where(p => !p.IsExists).First();
var translation = new TranslationResult();
// Act && Assert
translator.Translate((MethodCallExpression)query.Body, translation);
Assert.NotNull(translation.TableQuery);
Assert.NotNull(translation.TableQuery.FilterString);
Assert.Equal("not IsExists", translation.TableQuery.FilterString);
}
public void FirstWithInvalidMethod()
{
// Arrange
var translator = new FirstTranslator(_nameChanges);
Expression <Func <Country> > query = () => _countries.FirstOrDefault(p => !p.IsExists);
var translation = new TranslationResult();
// Act
Assert.Throws <ArgumentOutOfRangeException>(() => translator.Translate((MethodCallExpression)query.Body, translation));
// Assert
Assert.NotNull(translation.TableQuery);
Assert.Null(translation.TableQuery.FilterString);
Assert.Null(translation.PostProcessing);
}