public async Task KeyValuePairModelBinder_CreatesEmptyCollection_IfIsTopLevelObject()
{
// Arrange
var binder = new KeyValuePairModelBinder <string, string>(new SimpleTypeModelBinder(), new SimpleTypeModelBinder());
var context = CreateContext();
context.IsTopLevelObject = true;
// Lack of prefix and non-empty model name both ignored.
context.ModelName = "modelName";
var metadataProvider = context.OperationBindingContext.MetadataProvider;
context.ModelMetadata = metadataProvider.GetMetadataForType(typeof(KeyValuePair <string, string>));
context.ValueProvider = new TestValueProvider(new Dictionary <string, object>());
// Act
var result = await binder.BindModelResultAsync(context);
// Assert
Assert.NotEqual(default(ModelBindingResult), result);
var model = Assert.IsType <KeyValuePair <string, string> >(result.Model);
Assert.Equal(default(KeyValuePair <string, string>), model);
Assert.Equal("modelName", result.Key);
Assert.True(result.IsModelSet);
}
public async Task KeyValuePairModelBinder_DoesNotCreateCollection_IfNotIsTopLevelObject(string prefix)
{
// Arrange
var binder = new KeyValuePairModelBinder <string, string>(
new SimpleTypeModelBinder(typeof(string)),
new SimpleTypeModelBinder(typeof(string)));
var context = CreateContext();
context.ModelName = ModelNames.CreatePropertyModelName(prefix, "KeyValuePairProperty");
var metadataProvider = new TestModelMetadataProvider();
context.ModelMetadata = metadataProvider.GetMetadataForProperty(
typeof(ModelWithKeyValuePairProperty),
nameof(ModelWithKeyValuePairProperty.KeyValuePairProperty));
context.ValueProvider = new TestValueProvider(new Dictionary <string, object>());
// Act
var result = await binder.BindModelResultAsync(context);
// Assert
Assert.Equal(default(ModelBindingResult), result);
}
public async Task BindModel_SubBindingSucceeds()
{
// Arrange
var valueProvider = new SimpleValueProvider();
var bindingContext = GetBindingContext(valueProvider, typeof(KeyValuePair <int, string>));
var binder = new KeyValuePairModelBinder <int, string>(CreateIntBinder(), CreateStringBinder());
// Act
var result = await binder.BindModelResultAsync(bindingContext);
// Assert
Assert.NotEqual(default(ModelBindingResult), result);
Assert.Equal(new KeyValuePair <int, string>(42, "some-value"), result.Model);
}
public async Task BindModel_MissingKeyAndMissingValue_DoNotAddModelStateError()
{
// Arrange
var valueProvider = new SimpleValueProvider();
// Create int binder to create the value but not the key.
var bindingContext = GetBindingContext(valueProvider, typeof(KeyValuePair <int, string>));
var binder = new KeyValuePairModelBinder <int, string>(CreateIntBinder(false), CreateStringBinder(false));
// Act
var result = await binder.BindModelResultAsync(bindingContext);
// Assert
Assert.Equal(default(ModelBindingResult), result);
Assert.True(bindingContext.ModelState.IsValid);
Assert.Equal(0, bindingContext.ModelState.ErrorCount);
}
public async Task BindModel_MissingKey_ReturnsResult_AndAddsModelValidationError()
{
// Arrange
var valueProvider = new SimpleValueProvider();
// Create string binder to create the value but not the key.
var bindingContext = GetBindingContext(valueProvider, typeof(KeyValuePair <int, string>));
var binder = new KeyValuePairModelBinder <int, string>(CreateIntBinder(false), CreateStringBinder());
// Act
var result = await binder.BindModelResultAsync(bindingContext);
// Assert
Assert.NotEqual(default(ModelBindingResult), result);
Assert.Null(result.Model);
Assert.False(bindingContext.ModelState.IsValid);
Assert.Equal("someName", bindingContext.ModelName);
var error = Assert.Single(bindingContext.ModelState["someName.Key"].Errors);
Assert.Equal("A value is required.", error.ErrorMessage);
}