public async Task DictionaryModelBinder_CreatesEmptyCollection_IfIsTopLevelObject()
{
// Arrange
var binder = new DictionaryModelBinder <string, string>(
new SimpleTypeModelBinder(typeof(string)),
new SimpleTypeModelBinder(typeof(string)));
var bindingContext = CreateContext();
bindingContext.IsTopLevelObject = true;
// Lack of prefix and non-empty model name both ignored.
bindingContext.ModelName = "modelName";
var metadataProvider = new TestModelMetadataProvider();
bindingContext.ModelMetadata = metadataProvider.GetMetadataForType(typeof(Dictionary <string, string>));
bindingContext.ValueProvider = new TestValueProvider(new Dictionary <string, object>());
// Act
await binder.BindModelAsync(bindingContext);
// Assert
Assert.Empty(Assert.IsType <Dictionary <string, string> >(bindingContext.Result.Model));
Assert.True(bindingContext.Result.IsModelSet);
}
public async Task DictionaryModelBinder_DoesNotCreateCollection_IfNotIsTopLevelObject(string prefix)
{
// Arrange
var binder = new DictionaryModelBinder <int, int>(
new SimpleTypeModelBinder(typeof(int)),
new SimpleTypeModelBinder(typeof(int)));
var bindingContext = CreateContext();
bindingContext.ModelName = ModelNames.CreatePropertyModelName(prefix, "ListProperty");
var metadataProvider = new TestModelMetadataProvider();
bindingContext.ModelMetadata = metadataProvider.GetMetadataForProperty(
typeof(ModelWithDictionaryProperties),
nameof(ModelWithDictionaryProperties.DictionaryProperty));
bindingContext.ValueProvider = new TestValueProvider(new Dictionary <string, object>());
// Act
await binder.BindModelAsync(bindingContext);
// Assert
Assert.False(bindingContext.Result.IsModelSet);
}
public async Task DictionaryModelBinder_CreatesEmptyCollection_IfIsTopLevelObject()
{
// Arrange
var binder = new DictionaryModelBinder <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(Dictionary <string, string>));
context.ValueProvider = new TestValueProvider(new Dictionary <string, object>());
// Act
var result = await binder.BindModelResultAsync(context);
// Assert
Assert.NotEqual(default(ModelBindingResult), result);
Assert.Empty(Assert.IsType <Dictionary <string, string> >(result.Model));
Assert.Equal("modelName", result.Key);
Assert.True(result.IsModelSet);
}
public async Task BindModel_FallsBackToBindingValues_WithCustomDictionary(
string modelName,
string keyFormat,
IDictionary <string, string> dictionary)
{
// Arrange
var expectedDictionary = new SortedDictionary <string, string>(dictionary);
var binder = new DictionaryModelBinder <string, string>(
new SimpleTypeModelBinder(typeof(string)),
new SimpleTypeModelBinder(typeof(string)));
var bindingContext = CreateContext();
bindingContext.ModelName = modelName;
bindingContext.ValueProvider = CreateEnumerableValueProvider(keyFormat, dictionary);
bindingContext.FieldName = bindingContext.ModelName;
var metadataProvider = new TestModelMetadataProvider();
bindingContext.ModelMetadata = metadataProvider.GetMetadataForProperty(
typeof(ModelWithDictionaryProperties),
nameof(ModelWithDictionaryProperties.CustomDictionaryProperty));
// Act
await binder.BindModelAsync(bindingContext);
// Assert
Assert.True(bindingContext.Result.IsModelSet);
var resultDictionary = Assert.IsAssignableFrom <SortedDictionary <string, string> >(bindingContext.Result.Model);
Assert.Equal(expectedDictionary, resultDictionary);
}
public async Task BindModel_FallsBackToBindingValues_WithValueTypes(IDictionary <long, int> dictionary)
{
// Arrange
var stringDictionary = dictionary.ToDictionary(kvp => kvp.Key.ToString(), kvp => kvp.Value.ToString());
var binder = new DictionaryModelBinder <long, int>(
new SimpleTypeModelBinder(typeof(long)),
new SimpleTypeModelBinder(typeof(int)));
var bindingContext = CreateContext();
bindingContext.ModelName = "prefix";
bindingContext.ValueProvider = CreateEnumerableValueProvider("prefix[{0}]", stringDictionary);
bindingContext.FieldName = bindingContext.ModelName;
var metadataProvider = new TestModelMetadataProvider();
bindingContext.ModelMetadata = metadataProvider.GetMetadataForProperty(
typeof(ModelWithDictionaryProperties),
nameof(ModelWithDictionaryProperties.DictionaryWithValueTypesProperty));
// Act
await binder.BindModelAsync(bindingContext);
// Assert
Assert.True(bindingContext.Result.IsModelSet);
var resultDictionary = Assert.IsAssignableFrom <IDictionary <long, int> >(bindingContext.Result.Model);
Assert.Equal(dictionary, resultDictionary);
}
public async Task BindModel_Succeeds(bool isReadOnly)
{
// Arrange
var values = new Dictionary <string, string>()
{
{ "someName[0].Key", "42" },
{ "someName[0].Value", "forty-two" },
{ "someName[1].Key", "84" },
{ "someName[1].Value", "eighty-four" },
};
// Value Provider
var bindingContext = GetModelBindingContext(isReadOnly, values);
bindingContext.ValueProvider = CreateEnumerableValueProvider("{0}", values);
var binder = new DictionaryModelBinder <int, string>(new SimpleTypeModelBinder(), new SimpleTypeModelBinder());
// Act
var result = await binder.BindModelResultAsync(bindingContext);
// Assert
Assert.True(result.IsModelSet);
var dictionary = Assert.IsAssignableFrom <IDictionary <int, string> >(result.Model);
Assert.NotNull(dictionary);
Assert.Equal(2, dictionary.Count);
Assert.Equal("forty-two", dictionary[42]);
Assert.Equal("eighty-four", dictionary[84]);
// This uses the default IValidationStrategy
Assert.DoesNotContain(result.Model, bindingContext.ValidationState.Keys);
}
public async Task BindModel_FallsBackToBindingValues(
string modelName,
string keyFormat,
IDictionary <string, string> dictionary)
{
// Arrange
var binder = new DictionaryModelBinder <string, string>(new SimpleTypeModelBinder(), new SimpleTypeModelBinder());
var context = CreateContext();
context.ModelName = modelName;
context.OperationBindingContext.ValueProvider = CreateEnumerableValueProvider(keyFormat, dictionary);
context.ValueProvider = context.OperationBindingContext.ValueProvider;
context.FieldName = modelName;
var metadataProvider = context.OperationBindingContext.MetadataProvider;
context.ModelMetadata = metadataProvider.GetMetadataForProperty(
typeof(ModelWithDictionaryProperties),
nameof(ModelWithDictionaryProperties.DictionaryProperty));
// Act
var result = await binder.BindModelResultAsync(context);
// Assert
Assert.True(result.IsModelSet);
Assert.Equal(modelName, result.Key);
var resultDictionary = Assert.IsAssignableFrom <IDictionary <string, string> >(result.Model);
Assert.Equal(dictionary, resultDictionary);
}
public void CanCreateInstance_ReturnsExpectedValue(Type modelType, bool expectedResult)
{
// Arrange
var binder = new DictionaryModelBinder <int, int>(new SimpleTypeModelBinder(), new SimpleTypeModelBinder());
// Act
var result = binder.CanCreateInstance(modelType);
// Assert
Assert.Equal(expectedResult, result);
}
public async Task DictionaryModelBinder_CreatesEmptyCollectionAndAddsError_IfIsTopLevelObject()
{
// Arrange
var binder = new DictionaryModelBinder <string, string>(
new SimpleTypeModelBinder(typeof(string), NullLoggerFactory.Instance),
new SimpleTypeModelBinder(typeof(string), NullLoggerFactory.Instance),
NullLoggerFactory.Instance,
allowValidatingTopLevelNodes: true);
var bindingContext = CreateContext();
bindingContext.IsTopLevelObject = true;
bindingContext.FieldName = "fieldName";
bindingContext.ModelName = "modelName";
var metadataProvider = new TestModelMetadataProvider();
var parameter = typeof(DictionaryModelBinderTest)
.GetMethod(nameof(ActionWithDictionaryParameter), BindingFlags.Instance | BindingFlags.NonPublic)
.GetParameters()[0];
metadataProvider
.ForParameter(parameter)
.BindingDetails(b => b.IsBindingRequired = true);
bindingContext.ModelMetadata = metadataProvider.GetMetadataForParameter(parameter);
bindingContext.ValueProvider = new TestValueProvider(new Dictionary <string, object>());
// Act
await binder.BindModelAsync(bindingContext);
// Assert
Assert.Empty(Assert.IsType <Dictionary <string, string> >(bindingContext.Result.Model));
Assert.True(bindingContext.Result.IsModelSet);
var keyValuePair = Assert.Single(bindingContext.ModelState);
Assert.Equal("modelName", keyValuePair.Key);
var error = Assert.Single(keyValuePair.Value.Errors);
Assert.Equal("A value for the 'fieldName' parameter or property was not provided.", error.ErrorMessage);
}
public async Task BindModel_WithExistingModel_Succeeds(bool isReadOnly)
{
// Arrange
var values = new Dictionary <string, string>()
{
{ "someName[0].Key", "42" },
{ "someName[0].Value", "forty-two" },
{ "someName[1].Key", "84" },
{ "someName[1].Value", "eighty-four" },
};
var bindingContext = GetModelBindingContext(isReadOnly, values);
bindingContext.ValueProvider = CreateEnumerableValueProvider("{0}", values);
var dictionary = new Dictionary <int, string>();
bindingContext.Model = dictionary;
var binder = new DictionaryModelBinder <int, string>(
new SimpleTypeModelBinder(typeof(int), NullLoggerFactory.Instance),
new SimpleTypeModelBinder(typeof(string), NullLoggerFactory.Instance),
NullLoggerFactory.Instance);
// Act
await binder.BindModelAsync(bindingContext);
// Assert
Assert.True(bindingContext.Result.IsModelSet);
Assert.Same(dictionary, bindingContext.Result.Model);
Assert.NotNull(dictionary);
Assert.Equal(2, dictionary.Count);
Assert.Equal("forty-two", dictionary[42]);
Assert.Equal("eighty-four", dictionary[84]);
// This uses the default IValidationStrategy
Assert.DoesNotContain(bindingContext.Result.Model, bindingContext.ValidationState.Keys);
}
public async Task DictionaryModelBinder_CreatesEmptyCollection_IfIsTopLevelObject(
bool allowValidatingTopLevelNodes,
bool isBindingRequired)
{
// Arrange
var expectedErrorCount = isBindingRequired ? 1 : 0;
var binder = new DictionaryModelBinder <string, string>(
new SimpleTypeModelBinder(typeof(string), NullLoggerFactory.Instance),
new SimpleTypeModelBinder(typeof(string), NullLoggerFactory.Instance),
NullLoggerFactory.Instance,
allowValidatingTopLevelNodes);
var bindingContext = CreateContext();
bindingContext.IsTopLevelObject = true;
// Lack of prefix and non-empty model name both ignored.
bindingContext.ModelName = "modelName";
var metadataProvider = new TestModelMetadataProvider();
var parameter = typeof(DictionaryModelBinderTest)
.GetMethod(nameof(ActionWithDictionaryParameter), BindingFlags.Instance | BindingFlags.NonPublic)
.GetParameters()[0];
metadataProvider
.ForParameter(parameter)
.BindingDetails(b => b.IsBindingRequired = isBindingRequired);
bindingContext.ModelMetadata = metadataProvider.GetMetadataForParameter(parameter);
bindingContext.ValueProvider = new TestValueProvider(new Dictionary <string, object>());
// Act
await binder.BindModelAsync(bindingContext);
// Assert
Assert.Empty(Assert.IsType <Dictionary <string, string> >(bindingContext.Result.Model));
Assert.True(bindingContext.Result.IsModelSet);
Assert.Equal(expectedErrorCount, bindingContext.ModelState.ErrorCount);
}
public async Task BindModel_DoesNotFallBack_WithoutEnumerableValueProvider()
{
// Arrange
var dictionary = new Dictionary <string, string>(StringComparer.Ordinal)
{
{ "one", "one" },
{ "two", "two" },
{ "three", "three" },
};
var binder = new DictionaryModelBinder <string, string>(
new SimpleTypeModelBinder(typeof(string)),
new SimpleTypeModelBinder(typeof(string)));
var context = CreateContext();
context.ModelName = "prefix";
context.ValueProvider = CreateTestValueProvider("prefix[{0}]", dictionary);
context.FieldName = context.ModelName;
var metadataProvider = new TestModelMetadataProvider();
context.ModelMetadata = metadataProvider.GetMetadataForProperty(
typeof(ModelWithDictionaryProperties),
nameof(ModelWithDictionaryProperties.DictionaryProperty));
// Act
var result = await binder.BindModelResultAsync(context);
// Assert
Assert.NotEqual(default(ModelBindingResult), result);
Assert.True(result.IsModelSet);
Assert.Equal("prefix", result.Key);
var resultDictionary = Assert.IsAssignableFrom <IDictionary <string, string> >(result.Model);
Assert.Empty(resultDictionary);
}
public async Task DictionaryModelBinder_DoesNotCreateCollection_IfNotIsTopLevelObject(string prefix)
{
// Arrange
var binder = new DictionaryModelBinder <int, int>(new SimpleTypeModelBinder(), new SimpleTypeModelBinder());
var context = CreateContext();
context.ModelName = ModelNames.CreatePropertyModelName(prefix, "ListProperty");
var metadataProvider = context.OperationBindingContext.MetadataProvider;
context.ModelMetadata = metadataProvider.GetMetadataForProperty(
typeof(ModelWithDictionaryProperties),
nameof(ModelWithDictionaryProperties.DictionaryProperty));
context.ValueProvider = new TestValueProvider(new Dictionary <string, object>());
// Act
var result = await binder.BindModelResultAsync(context);
// Assert
Assert.Equal(default(ModelBindingResult), result);
}
public async Task DictionaryModelBinder_DoesNotCreateCollection_IfNotIsTopLevelObject(
string prefix,
bool allowValidatingTopLevelNodes,
bool isBindingRequired)
{
// Arrange
var binder = new DictionaryModelBinder <int, int>(
new SimpleTypeModelBinder(typeof(int), NullLoggerFactory.Instance),
new SimpleTypeModelBinder(typeof(int), NullLoggerFactory.Instance),
NullLoggerFactory.Instance,
allowValidatingTopLevelNodes);
var bindingContext = CreateContext();
bindingContext.ModelName = ModelNames.CreatePropertyModelName(prefix, "ListProperty");
var metadataProvider = new TestModelMetadataProvider();
metadataProvider
.ForProperty(
typeof(ModelWithDictionaryProperties),
nameof(ModelWithDictionaryProperties.DictionaryProperty))
.BindingDetails(b => b.IsBindingRequired = isBindingRequired);
bindingContext.ModelMetadata = metadataProvider.GetMetadataForProperty(
typeof(ModelWithDictionaryProperties),
nameof(ModelWithDictionaryProperties.DictionaryProperty));
bindingContext.ValueProvider = new TestValueProvider(new Dictionary <string, object>());
// Act
await binder.BindModelAsync(bindingContext);
// Assert
Assert.False(bindingContext.Result.IsModelSet);
Assert.Equal(0, bindingContext.ModelState.ErrorCount);
}
public async Task BindModel_FallsBackToBindingValues_WithComplexValues()
{
// Arrange
var dictionary = new Dictionary <int, ModelWithProperties>
{
{ 23, new ModelWithProperties {
Id = 43, Name = "Wilma"
} },
{ 27, new ModelWithProperties {
Id = 98, Name = "Fred"
} },
};
var stringDictionary = new Dictionary <string, string>
{
{ "prefix[23].Id", "43" },
{ "prefix[23].Name", "Wilma" },
{ "prefix[27].Id", "98" },
{ "prefix[27].Name", "Fred" },
};
var bindingContext = CreateContext();
bindingContext.ModelName = "prefix";
bindingContext.ValueProvider = CreateEnumerableValueProvider("{0}", stringDictionary);
bindingContext.FieldName = bindingContext.ModelName;
var metadataProvider = new TestModelMetadataProvider();
bindingContext.ModelMetadata = metadataProvider.GetMetadataForProperty(
typeof(ModelWithDictionaryProperties),
nameof(ModelWithDictionaryProperties.DictionaryWithComplexValuesProperty));
var valueMetadata = metadataProvider.GetMetadataForType(typeof(ModelWithProperties));
var binder = new DictionaryModelBinder <int, ModelWithProperties>(
new SimpleTypeModelBinder(typeof(int)),
new ComplexTypeModelBinder(new Dictionary <ModelMetadata, IModelBinder>()
{
{ valueMetadata.Properties["Id"], new SimpleTypeModelBinder(typeof(int)) },
{ valueMetadata.Properties["Name"], new SimpleTypeModelBinder(typeof(string)) },
}));
// Act
await binder.BindModelAsync(bindingContext);
// Assert
Assert.True(bindingContext.Result.IsModelSet);
var resultDictionary = Assert.IsAssignableFrom <IDictionary <int, ModelWithProperties> >(bindingContext.Result.Model);
Assert.Equal(dictionary, resultDictionary);
// This requires a non-default IValidationStrategy
Assert.Contains(bindingContext.Result.Model, bindingContext.ValidationState.Keys);
var entry = bindingContext.ValidationState[bindingContext.Result.Model];
var strategy = Assert.IsType <ShortFormDictionaryValidationStrategy <int, ModelWithProperties> >(entry.Strategy);
Assert.Equal(
new KeyValuePair <string, int>[]
{
new KeyValuePair <string, int>("23", 23),
new KeyValuePair <string, int>("27", 27),
}.OrderBy(kvp => kvp.Key),
strategy.KeyMappings.OrderBy(kvp => kvp.Key));
}