public void TestIncompatibleFilter()
{
var provider = new GenericFilterExpressionProvider <Entity, int>(
i => new FilterExpressionDictionary <Entity>(),
new FilterToIntegerConverter(new CultureInfoConversionPriorityCollection()));
Assert.Null(provider.Resolve(FilterType.Equals, "a"));
}
public void TestExistingFilterWithIncompatibleValue()
{
var provider = new GenericFilterExpressionProvider <Entity, int>(
i => new FilterExpressionDictionary <Entity>().AddEquals(e => e.Id == i),
new FilterToIntegerConverter(new CultureInfoConversionPriorityCollection()));
var expression = provider.Resolve(FilterType.Equals, "a");
var constant = (ConstantExpression)expression.Body;
Assert.False((bool)constant.Value);
}
public void TestExistingCase()
{
const int id = 1;
var provider = new GenericFilterExpressionProvider <Entity, int>(
i => new FilterExpressionDictionary <Entity>().AddEquals(e => e.Id == i),
new FilterToIntegerConverter(new CultureInfoConversionPriorityCollection()));
var expression = provider.Resolve(FilterType.Equals, id.ToString());
using (var context = new MockDbContext())
{
context.Add(new Entity {
Id = id
});
context.SaveChanges();
Assert.Equal(1, context.Entities.Count(expression));
}
}