public async Task BindModelSetsModelToNullOnNullOrEmptyString(string value)
{
// Arrange
var valueProvider = new SimpleValueProvider()
{
{ "foo", value }
};
var bindingContext = GetBindingContext(valueProvider, typeof(byte[]));
var binder = new ByteArrayModelBinder();
// Act
var binderResult = await binder.BindModelResultAsync(bindingContext);
// Assert
Assert.NotNull(binderResult);
Assert.False(binderResult.IsModelSet);
Assert.Equal("foo", binderResult.Key);
Assert.Null(binderResult.Model);
var modelState = Assert.Single(bindingContext.ModelState);
Assert.Equal("foo", modelState.Key);
Assert.Equal(string.Empty, modelState.Value.RawValue);
}
public async Task BindModel()
{
// Arrange
var valueProvider = new SimpleValueProvider()
{
{ "foo", "Fys1" }
};
var bindingContext = GetBindingContext(valueProvider, typeof(byte[]));
var binder = new ByteArrayModelBinder();
// Act
var binderResult = await binder.BindModelResultAsync(bindingContext);
// Assert
Assert.NotNull(binderResult);
var bytes = Assert.IsType <byte[]>(binderResult.Model);
Assert.Equal(new byte[] { 23, 43, 53 }, bytes);
}
public async Task BindModel_ReturnsWithIsModelSetFalse_WhenValueNotFound()
{
// Arrange
var valueProvider = new SimpleValueProvider()
{
{ "someName", "" }
};
var bindingContext = GetBindingContext(valueProvider, typeof(byte[]));
var binder = new ByteArrayModelBinder();
// Act
var binderResult = await binder.BindModelResultAsync(bindingContext);
// Assert
Assert.NotNull(binderResult);
Assert.False(binderResult.IsModelSet);
Assert.Equal("foo", binderResult.Key);
Assert.Null(binderResult.Model);
Assert.Empty(bindingContext.ModelState); // No submitted data for "foo".
}
public async Task BindModelAddsModelErrorsOnInvalidCharacters()
{
// Arrange
var expected = "The value '\"Fys1\"' is not valid for Byte[].";
var valueProvider = new SimpleValueProvider()
{
{ "foo", "\"Fys1\"" }
};
var bindingContext = GetBindingContext(valueProvider, typeof(byte[]));
var binder = new ByteArrayModelBinder();
// Act
var binderResult = await binder.BindModelResultAsync(bindingContext);
// Assert
Assert.NotNull(binderResult);
Assert.False(bindingContext.ModelState.IsValid);
var error = Assert.Single(bindingContext.ModelState["foo"].Errors);
Assert.Equal(expected, error.ErrorMessage);
}