public async Task FormCollectionModelBinder_ValidType_BindSuccessful()
{
// Arrange
var formCollection = new FormCollection(new Dictionary <string, StringValues>
{
{ "field1", "value1" },
{ "field2", "value2" }
});
var httpContext = GetMockHttpContext(formCollection);
var bindingContext = GetBindingContext(typeof(IFormCollection), httpContext);
var binder = new FormCollectionModelBinder();
// Act
await binder.BindModelAsync(bindingContext);
// Assert
Assert.True(bindingContext.Result.IsModelSet);
Assert.Empty(bindingContext.ValidationState);
var form = Assert.IsAssignableFrom <IFormCollection>(bindingContext.Result.Model);
Assert.Equal(2, form.Count);
Assert.Equal("value1", form["field1"]);
Assert.Equal("value2", form["field2"]);
}
public async Task FormCollectionModelBinder_NoForm_BindSuccessful_ReturnsEmptyFormCollection()
{
// Arrange
var httpContext = GetMockHttpContext(null, hasForm: false);
var bindingContext = GetBindingContext(typeof(IFormCollection), httpContext);
var binder = new FormCollectionModelBinder();
// Act
await binder.BindModelAsync(bindingContext);
// Assert
Assert.True(bindingContext.Result.IsModelSet);
var form = Assert.IsAssignableFrom <IFormCollection>(bindingContext.Result.Model);
Assert.Empty(form);
}