public void BindSimpleModelPropagatesErrorsOnFailure() {
// Arrange
ValueProviderResult result = new ValueProviderResult("invalid", null, null);
ModelBindingContext bindingContext = new ModelBindingContext() {
ModelName = "foo",
ModelType = typeof(int)
};
DefaultModelBinder binder = new DefaultModelBinder();
// Act
object returnedValue = binder.BindSimpleModel(null, bindingContext, result);
// Assert
Assert.IsFalse(bindingContext.ModelState.IsValidField("foo"), "Foo should be an invalid field.");
Assert.IsInstanceOfType(bindingContext.ModelState["foo"].Errors[0].Exception, typeof(InvalidOperationException));
Assert.AreEqual("The parameter conversion from type 'System.String' to type 'System.Int32' failed. See the inner exception for more information.", bindingContext.ModelState["foo"].Errors[0].Exception.Message);
Assert.IsNull(returnedValue, "Should have returned null on failure.");
}
public void BindSimpleModelChecksValueProviderResultRawValueType() {
// Arrange
ValueProviderResult result = new ValueProviderResult(new MemoryStream(), null, null);
ModelBindingContext bindingContext = new ModelBindingContext() {
ModelName = "foo",
ModelType = typeof(Stream)
};
DefaultModelBinder binder = new DefaultModelBinder();
// Act
object returnedValue = binder.BindSimpleModel(null, bindingContext, result);
// Assert
Assert.AreEqual(result, bindingContext.ModelState["foo"].Value, "ModelState should have been set.");
Assert.AreSame(result.RawValue, returnedValue, "Should have returned the RawValue since it was of the correct type.");
}
public void BindSimpleModelCanReturnCollectionTypes() {
// Arrange
ValueProviderResult result = new ValueProviderResult(new string[] { "42", "82" }, null, null);
ModelBindingContext bindingContext = new ModelBindingContext() {
ModelName = "foo",
ModelType = typeof(IEnumerable<int>)
};
DefaultModelBinder binder = new DefaultModelBinder();
// Act
object returnedValue = binder.BindSimpleModel(null, bindingContext, result);
// Assert
Assert.IsInstanceOfType(returnedValue, typeof(IEnumerable<int>), "Returned value was of incorrect type.");
List<int> returnedValueAsList = ((IEnumerable<int>)returnedValue).ToList();
Assert.AreEqual(2, returnedValueAsList.Count);
Assert.AreEqual(42, returnedValueAsList[0]);
Assert.AreEqual(82, returnedValueAsList[1]);
}
public void BindSimpleModelCanReturnStrings() {
// Arrange
ValueProviderResult result = new ValueProviderResult(new object[] { "42" }, null, null);
ModelBindingContext bindingContext = new ModelBindingContext() {
ModelName = "foo",
ModelType = typeof(string)
};
DefaultModelBinder binder = new DefaultModelBinder();
// Act
object returnedValue = binder.BindSimpleModel(null, bindingContext, result);
// Assert
Assert.AreEqual("42", returnedValue);
}
public void BindSimpleModelCanReturnArrayTypes() {
// Arrange
ValueProviderResult result = new ValueProviderResult(42, null, null);
ModelBindingContext bindingContext = new ModelBindingContext() {
ModelName = "foo",
ModelType = typeof(int[])
};
DefaultModelBinder binder = new DefaultModelBinder();
// Act
object returnedValue = binder.BindSimpleModel(null, bindingContext, result);
// Assert
Assert.IsInstanceOfType(returnedValue, typeof(int[]), "Returned value was of incorrect type.");
int[] returnedValueAsIntArray = (int[])returnedValue;
Assert.AreEqual(1, returnedValueAsIntArray.Length);
Assert.AreEqual(42, returnedValueAsIntArray[0]);
}
