public async Task BindModel_ComplexCollection_Succeeds(bool isReadOnly)
{
// Arrange
var valueProvider = new SimpleHttpValueProvider
{
{ "someName.index", new[] { "foo", "bar", "baz" } },
{ "someName[foo]", "42" },
{ "someName[bar]", "100" },
{ "someName[baz]", "200" }
};
var bindingContext = GetModelBindingContext(valueProvider, isReadOnly);
var modelState = bindingContext.ModelState;
var binder = new CollectionModelBinder<int>();
// Act
var result = await binder.BindModelAsync(bindingContext);
// Assert
Assert.NotNull(result);
Assert.True(result.IsModelSet);
var list = Assert.IsAssignableFrom<IList<int>>(result.Model);
Assert.Equal(new[] { 42, 100, 200 }, list.ToArray());
Assert.True(modelState.IsValid);
}
public async Task BindComplexCollectionFromIndexes_FiniteIndexes()
{
// Arrange
var valueProvider = new SimpleHttpValueProvider
{
{ "someName[foo]", "42" },
{ "someName[baz]", "200" }
};
var bindingContext = GetModelBindingContext(valueProvider);
var binder = new CollectionModelBinder<int>();
// Act
var boundCollection = await binder.BindComplexCollectionFromIndexes(bindingContext, new[] { "foo", "bar", "baz" });
// Assert
Assert.Equal(new[] { 42, 0, 200 }, boundCollection.ToArray());
}
public async Task BindComplexCollectionFromIndexes_InfiniteIndexes()
{
// Arrange
var valueProvider = new SimpleHttpValueProvider
{
{ "someName[0]", "42" },
{ "someName[1]", "100" },
{ "someName[3]", "400" }
};
var bindingContext = GetModelBindingContext(valueProvider);
var binder = new CollectionModelBinder<int>();
// Act
var boundCollection = await binder.BindComplexCollectionFromIndexes(bindingContext, indexNames: null);
// Assert
Assert.Equal(new[] { 42, 100 }, boundCollection.ToArray());
}
public async Task BindModel_ComplexCollection()
{
// Arrange
var valueProvider = new SimpleHttpValueProvider
{
{ "someName.index", new[] { "foo", "bar", "baz" } },
{ "someName[foo]", "42" },
{ "someName[bar]", "100" },
{ "someName[baz]", "200" }
};
var bindingContext = GetModelBindingContext(valueProvider);
var binder = new CollectionModelBinder<int>();
// Act
bool retVal = await binder.BindModelAsync(bindingContext);
// Assert
Assert.Equal(new[] { 42, 100, 200 }, ((List<int>)bindingContext.Model).ToArray());
}
public async Task BindComplexCollectionFromIndexes_InfiniteIndexes()
{
// Arrange
var valueProvider = new SimpleValueProvider
{
{ "someName[0]", "42" },
{ "someName[1]", "100" },
{ "someName[3]", "400" }
};
var bindingContext = GetModelBindingContext(valueProvider);
var binder = new CollectionModelBinder<int>(CreateIntBinder());
// Act
var boundCollection = await binder.BindComplexCollectionFromIndexes(bindingContext, indexNames: null);
// Assert
Assert.Equal(new[] { 42, 100 }, boundCollection.Model.ToArray());
// This uses the default IValidationStrategy
Assert.DoesNotContain(boundCollection, bindingContext.ValidationState.Keys);
}
public async Task BindComplexCollectionFromIndexes_InfiniteIndexes()
{
// Arrange
var valueProvider = new SimpleValueProvider
{
{ "someName[0]", "42" },
{ "someName[1]", "100" },
{ "someName[3]", "400" }
};
var bindingContext = GetModelBindingContext(valueProvider);
var binder = new CollectionModelBinder <int>();
// Act
var boundCollection = await binder.BindComplexCollectionFromIndexes(bindingContext, indexNames : null);
// Assert
Assert.Equal(new[] { 42, 100 }, boundCollection.Model.ToArray());
// This uses the default IValidationStrategy
Assert.DoesNotContain(boundCollection, bindingContext.ValidationState.Keys);
}
public async Task CollectionModelBinder_CreatesEmptyCollectionAndAddsError_IfIsTopLevelObject()
{
// Arrange
var binder = new CollectionModelBinder <string>(
new StubModelBinder(result: ModelBindingResult.Failed()),
NullLoggerFactory.Instance,
allowValidatingTopLevelNodes: true);
var bindingContext = CreateContext();
bindingContext.IsTopLevelObject = true;
bindingContext.FieldName = "fieldName";
bindingContext.ModelName = "modelName";
var metadataProvider = new TestModelMetadataProvider();
var parameter = typeof(CollectionModelBinderTest)
.GetMethod(nameof(ActionWithListParameter), 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 <List <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_SimpleCollection_Succeeds(bool isReadOnly)
{
// Arrange
var valueProvider = new SimpleValueProvider
{
{ "someName", new[] { "42", "100", "200" } }
};
var bindingContext = GetModelBindingContext(valueProvider, isReadOnly);
var modelState = bindingContext.ModelState;
var binder = new CollectionModelBinder <int>();
// Act
var result = await binder.BindModelAsync(bindingContext);
// Assert
Assert.NotEqual(ModelBindingResult.NoResult, result);
Assert.True(result.IsModelSet);
var list = Assert.IsAssignableFrom <IList <int> >(result.Model);
Assert.Equal(new[] { 42, 100, 200 }, list.ToArray());
}
public void BindModel_ComplexCollection()
{
// Arrange
ControllerContext controllerContext = new ControllerContext();
CultureInfo culture = CultureInfo.GetCultureInfo("fr-FR");
ExtensibleModelBindingContext bindingContext = new ExtensibleModelBindingContext
{
ModelMetadata = new EmptyModelMetadataProvider().GetMetadataForType(null, typeof(int)),
ModelName = "someName",
ModelBinderProviders = new ModelBinderProviderCollection(),
ValueProvider = new SimpleValueProvider
{
{ "someName.index", new[] { "foo", "bar", "baz" } },
{ "someName[foo]", "42" },
{ "someName[bar]", "100" },
{ "someName[baz]", "200" }
}
};
Mock <IExtensibleModelBinder> mockIntBinder = new Mock <IExtensibleModelBinder>();
mockIntBinder
.Setup(o => o.BindModel(controllerContext, It.IsAny <ExtensibleModelBindingContext>()))
.Returns(
delegate(ControllerContext cc, ExtensibleModelBindingContext mbc)
{
mbc.Model = mbc.ValueProvider.GetValue(mbc.ModelName).ConvertTo(mbc.ModelType);
return(true);
});
bindingContext.ModelBinderProviders.RegisterBinderForType(typeof(int), mockIntBinder.Object, true /* suppressPrefixCheck */);
CollectionModelBinder <int> modelBinder = new CollectionModelBinder <int>();
// Act
bool retVal = modelBinder.BindModel(controllerContext, bindingContext);
// Assert
Assert.Equal(new[] { 42, 100, 200 }, ((List <int>)bindingContext.Model).ToArray());
}
public async Task BindSimpleCollection_SubBindingSucceeds()
{
// Arrange
var culture = new CultureInfo("fr-FR");
var bindingContext = GetModelBindingContext(new SimpleValueProvider());
var elementBinder = new StubModelBinder(mbc =>
{
Assert.Equal("someName", mbc.ModelName);
mbc.Result = ModelBindingResult.Success(42);
});
var modelBinder = new CollectionModelBinder <int>(elementBinder, NullLoggerFactory.Instance);
// Act
var boundCollection = await modelBinder.BindSimpleCollection(
bindingContext,
new ValueProviderResult(new string[] { "0" }));
// Assert
Assert.Equal(new[] { 42 }, boundCollection.Model.ToArray());
}
public void BindModel_ComplexCollection()
{
// Arrange
CultureInfo culture = CultureInfo.GetCultureInfo("fr-FR");
Mock <IModelBinder> mockIntBinder = new Mock <IModelBinder>();
ModelBindingContext bindingContext = new ModelBindingContext
{
ModelMetadata = new EmptyModelMetadataProvider().GetMetadataForType(null, typeof(int)),
ModelName = "someName",
ValueProvider = new SimpleHttpValueProvider
{
{ "someName.index", new[] { "foo", "bar", "baz" } },
{ "someName[foo]", "42" },
{ "someName[bar]", "100" },
{ "someName[baz]", "200" }
}
};
HttpActionContext context = ContextUtil.CreateActionContext();
context.ControllerContext.Configuration.Services.Replace(typeof(ModelBinderProvider), new SimpleModelBinderProvider(typeof(int), mockIntBinder.Object));
mockIntBinder
.Setup(o => o.BindModel(context, It.IsAny <ModelBindingContext>()))
.Returns((HttpActionContext ec, ModelBindingContext mbc) =>
{
mbc.Model = mbc.ValueProvider.GetValue(mbc.ModelName).ConvertTo(mbc.ModelType);
return(true);
});
CollectionModelBinder <int> modelBinder = new CollectionModelBinder <int>();
// Act
bool retVal = modelBinder.BindModel(context, bindingContext);
// Assert
Assert.Equal(new[] { 42, 100, 200 }, ((List <int>)bindingContext.Model).ToArray());
}
public async Task CollectionModelBinder_DoesNotCreateCollection_IfNotIsTopLevelObject(string prefix)
{
// Arrange
var binder = new CollectionModelBinder <string>();
var context = CreateContext();
context.ModelName = ModelNames.CreatePropertyModelName(prefix, "ListProperty");
var metadataProvider = context.OperationBindingContext.MetadataProvider;
context.ModelMetadata = metadataProvider.GetMetadataForProperty(
typeof(ModelWithListProperty),
nameof(ModelWithListProperty.ListProperty));
context.ValueProvider = new TestValueProvider(new Dictionary <string, object>());
// Act
var result = await binder.BindModelAsync(context);
// Assert
Assert.Equal(ModelBindingResult.NoResult, result);
}
public async Task BindSimpleCollection_SubBindingSucceeds()
{
// Arrange
var culture = new CultureInfo("fr-FR");
var bindingContext = GetModelBindingContext(new SimpleValueProvider());
Mock.Get <IModelBinder>(bindingContext.OperationBindingContext.ModelBinder)
.Setup(o => o.BindModelAsync(It.IsAny <ModelBindingContext>()))
.Returns((ModelBindingContext mbc) =>
{
Assert.Equal("someName", mbc.ModelName);
return(ModelBindingResult.SuccessAsync(mbc.ModelName, 42));
});
var modelBinder = new CollectionModelBinder <int>();
// Act
var boundCollection = await modelBinder.BindSimpleCollection(
bindingContext,
new ValueProviderResult(new string[] { "0" }));
// Assert
Assert.Equal(new[] { 42 }, boundCollection.Model.ToArray());
}
public async Task BindModelAsync_SimpleCollectionWithNullValue_Succeeds()
{
// Arrange
var binder = new CollectionModelBinder <int>();
var valueProvider = new SimpleValueProvider
{
{ "someName", null },
};
var bindingContext = GetModelBindingContext(valueProvider, isReadOnly: false);
var modelState = bindingContext.ModelState;
// Act
var result = await binder.BindModelAsync(bindingContext);
// Assert
Assert.NotEqual(ModelBindingResult.NoResult, result);
Assert.True(result.IsModelSet);
Assert.NotNull(result.Model);
var model = Assert.IsType <List <int> >(result.Model);
Assert.Empty(model);
}
public async Task BindComplexCollectionFromIndexes_FiniteIndexes()
{
// Arrange
var valueProvider = new SimpleValueProvider
{
{ "someName[foo]", "42" },
{ "someName[baz]", "200" }
};
var bindingContext = GetModelBindingContext(valueProvider);
var binder = new CollectionModelBinder<int>(CreateIntBinder());
// Act
var collectionResult = await binder.BindComplexCollectionFromIndexes(
bindingContext,
new[] { "foo", "bar", "baz" });
// Assert
Assert.Equal(new[] { 42, 0, 200 }, collectionResult.Model.ToArray());
// This requires a non-default IValidationStrategy
var strategy = Assert.IsType<ExplicitIndexCollectionValidationStrategy>(collectionResult.ValidationStrategy);
Assert.Equal(new[] { "foo", "bar", "baz" }, strategy.ElementKeys);
}
public async Task BindModel_SimpleCollection_BindingContextModelNonNull_Succeeds(bool isReadOnly)
{
// Arrange
var valueProvider = new SimpleValueProvider
{
{ "someName", new[] { "42", "100", "200" } }
};
var bindingContext = GetModelBindingContext(valueProvider, isReadOnly);
var modelState = bindingContext.ModelState;
var list = new List <int>();
bindingContext.Model = list;
var binder = new CollectionModelBinder <int>(CreateIntBinder(), NullLoggerFactory.Instance);
// Act
await binder.BindModelAsync(bindingContext);
// Assert
Assert.True(bindingContext.Result.IsModelSet);
Assert.Same(list, bindingContext.Result.Model);
Assert.Equal(new[] { 42, 100, 200 }, list.ToArray());
}
public void BindComplexCollectionFromIndexes_InfiniteIndexes()
{
// Arrange
ControllerContext controllerContext = new ControllerContext();
CultureInfo culture = CultureInfo.GetCultureInfo("fr-FR");
ExtensibleModelBindingContext bindingContext = new ExtensibleModelBindingContext
{
ModelMetadata = new EmptyModelMetadataProvider().GetMetadataForType(null, typeof(int)),
ModelName = "someName",
ModelBinderProviders = new ModelBinderProviderCollection(),
ValueProvider = new SimpleValueProvider
{
{ "someName[0]", "42" },
{ "someName[1]", "100" },
{ "someName[3]", "400" }
}
};
Mock <IExtensibleModelBinder> mockIntBinder = new Mock <IExtensibleModelBinder>();
mockIntBinder
.Setup(o => o.BindModel(controllerContext, It.IsAny <ExtensibleModelBindingContext>()))
.Returns(
delegate(ControllerContext cc, ExtensibleModelBindingContext mbc)
{
mbc.Model = mbc.ValueProvider.GetValue(mbc.ModelName).ConvertTo(mbc.ModelType);
return(true);
});
bindingContext.ModelBinderProviders.RegisterBinderForType(typeof(int), mockIntBinder.Object, false /* suppressPrefixCheck */);
// Act
List <int> boundCollection = CollectionModelBinder <int> .BindComplexCollectionFromIndexes(controllerContext, bindingContext, null /* indexNames */);
// Assert
Assert.Equal(new[] { 42, 100 }, boundCollection.ToArray());
Assert.Equal(new[] { "someName[0]", "someName[1]" }, bindingContext.ValidationNode.ChildNodes.Select(o => o.ModelStateKey).ToArray());
}
public async Task CollectionModelBinder_DoesNotCreateEmptyCollection_IfModelNonNull()
{
// Arrange
var binder = new CollectionModelBinder <string>();
var context = CreateContext();
context.IsTopLevelObject = true;
var list = new List <string>();
context.Model = list;
// Lack of prefix and non-empty model name both ignored.
context.ModelName = "modelName";
var metadataProvider = context.OperationBindingContext.MetadataProvider;
context.ModelMetadata = metadataProvider.GetMetadataForType(typeof(List <string>));
context.ValueProvider = new TestValueProvider(new Dictionary <string, object>());
// Act
var result = await binder.BindModelAsync(context);
// Assert
Assert.NotNull(result);
Assert.Same(list, result.Model);
Assert.Empty(list);
Assert.Equal("modelName", result.Key);
Assert.True(result.IsModelSet);
Assert.Same(result.ValidationNode.Model, result.Model);
Assert.Same(result.ValidationNode.Key, result.Key);
Assert.Same(result.ValidationNode.ModelMetadata, context.ModelMetadata);
}
public async Task CollectionModelBinder_CreatesEmptyCollection_IfIsTopLevelObject(
bool allowValidatingTopLevelNodes,
bool isBindingRequired)
{
// Arrange
var binder = new CollectionModelBinder <string>(
new StubModelBinder(result: ModelBindingResult.Failed()),
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(CollectionModelBinderTest)
.GetMethod(nameof(ActionWithListParameter), 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 <List <string> >(bindingContext.Result.Model));
Assert.True(bindingContext.Result.IsModelSet);
Assert.Equal(0, bindingContext.ModelState.ErrorCount);
}
public void BindComplexCollectionFromIndexes_InfiniteIndexes()
{
// Arrange
CultureInfo culture = CultureInfo.GetCultureInfo("fr-FR");
Mock <IModelBinder> mockIntBinder = new Mock <IModelBinder>();
ModelBindingContext bindingContext = new ModelBindingContext
{
ModelMetadata = new EmptyModelMetadataProvider().GetMetadataForType(null, typeof(int)),
ModelName = "someName",
ValueProvider = new SimpleHttpValueProvider
{
{ "someName[0]", "42" },
{ "someName[1]", "100" },
{ "someName[3]", "400" }
}
};
HttpActionContext context = ContextUtil.CreateActionContext();
context.ControllerContext.Configuration.Services.Replace(typeof(ModelBinderProvider), new SimpleModelBinderProvider(typeof(int), mockIntBinder.Object));
mockIntBinder
.Setup(o => o.BindModel(context, It.IsAny <ModelBindingContext>()))
.Returns((HttpActionContext ec, ModelBindingContext mbc) =>
{
mbc.Model = mbc.ValueProvider.GetValue(mbc.ModelName).ConvertTo(mbc.ModelType);
return(true);
});
// Act
List <int> boundCollection = CollectionModelBinder <int> .BindComplexCollectionFromIndexes(context, bindingContext, null /* indexNames */);
// Assert
Assert.Equal(new[] { 42, 100 }, boundCollection.ToArray());
Assert.Equal(new[] { "someName[0]", "someName[1]" }, bindingContext.ValidationNode.ChildNodes.Select(o => o.ModelStateKey).ToArray());
}
public void BindModel_SimpleCollection()
{
// Arrange
ControllerContext controllerContext = new ControllerContext();
CultureInfo culture = CultureInfo.GetCultureInfo("fr-FR");
ExtensibleModelBindingContext bindingContext = new ExtensibleModelBindingContext()
{
ModelMetadata = new EmptyModelMetadataProvider().GetMetadataForType(null, typeof(int)),
ModelName = "someName",
ModelBinderProviders = new ModelBinderProviderCollection(),
ValueProvider = new SimpleValueProvider()
{
{ "someName", new string[] { "42", "100", "200" } }
}
};
Mock <IExtensibleModelBinder> mockIntBinder = new Mock <IExtensibleModelBinder>();
mockIntBinder
.Expect(o => o.BindModel(controllerContext, It.IsAny <ExtensibleModelBindingContext>()))
.Returns(
delegate(ControllerContext cc, ExtensibleModelBindingContext mbc) {
mbc.Model = mbc.ValueProvider.GetValue(mbc.ModelName).ConvertTo(mbc.ModelType);
return(true);
});
bindingContext.ModelBinderProviders.RegisterBinderForType(typeof(int), mockIntBinder.Object, true /* suppressPrefixCheck */);
CollectionModelBinder <int> modelBinder = new CollectionModelBinder <int>();
// Act
bool retVal = modelBinder.BindModel(controllerContext, bindingContext);
// Assert
Assert.IsTrue(retVal);
CollectionAssert.AreEqual(new int[] { 42, 100, 200 }, bindingContext.Model as ICollection);
}
public async Task BindSimpleCollection_SubBindingSucceeds()
{
// Arrange
var culture = new CultureInfo("fr-FR");
var bindingContext = GetModelBindingContext(new SimpleHttpValueProvider());
ModelValidationNode childValidationNode = null;
Mock.Get <IModelBinder>(bindingContext.OperationBindingContext.ModelBinder)
.Setup(o => o.BindModelAsync(It.IsAny <ModelBindingContext>()))
.Returns((ModelBindingContext mbc) =>
{
Assert.Equal("someName", mbc.ModelName);
childValidationNode = new ModelValidationNode("someName", mbc.ModelMetadata, mbc.Model);
return(Task.FromResult(new ModelBindingResult(42, mbc.ModelName, true, childValidationNode)));
});
var modelBinder = new CollectionModelBinder <int>();
// Act
var boundCollection = await modelBinder.BindSimpleCollection(bindingContext, new int[1], culture);
// Assert
Assert.Equal(new[] { 42 }, boundCollection.Model.ToArray());
Assert.Equal(new[] { childValidationNode }, boundCollection.ValidationNode.ChildNodes.ToArray());
}
public async Task BindComplexCollectionFromIndexes_FiniteIndexes()
{
// Arrange
var valueProvider = new SimpleValueProvider
{
{ "someName[foo]", "42" },
{ "someName[baz]", "200" }
};
var bindingContext = GetModelBindingContext(valueProvider);
var binder = new CollectionModelBinder <int>(CreateIntBinder(), NullLoggerFactory.Instance);
// Act
var collectionResult = await binder.BindComplexCollectionFromIndexes(
bindingContext,
new[] { "foo", "bar", "baz" });
// Assert
Assert.Equal(new[] { 42, 0, 200 }, collectionResult.Model.ToArray());
// This requires a non-default IValidationStrategy
var strategy = Assert.IsType <ExplicitIndexCollectionValidationStrategy>(collectionResult.ValidationStrategy);
Assert.Equal(new[] { "foo", "bar", "baz" }, strategy.ElementKeys);
}
public async Task CollectionModelBinder_DoesNotCreateCollection_ForNonTopLevelModel(string prefix)
{
// Arrange
var binder = new CollectionModelBinder<string>();
var context = CreateContext();
context.ModelName = ModelNames.CreatePropertyModelName(prefix, "ListProperty");
var metadataProvider = context.OperationBindingContext.MetadataProvider;
context.ModelMetadata = metadataProvider.GetMetadataForProperty(
typeof(ModelWithListProperty),
nameof(ModelWithListProperty.ListProperty));
context.ValueProvider = new TestValueProvider(new Dictionary<string, object>());
// Act
var result = await binder.BindModelAsync(context);
// Assert
Assert.Null(result);
}
public async Task CollectionModelBinder_CreatesEmptyCollection_ForTopLevelModel_WithExplicitPrefix()
{
// Arrange
var binder = new CollectionModelBinder<string>();
var context = CreateContext();
context.ModelName = "prefix";
context.BinderModelName = "prefix";
var metadataProvider = context.OperationBindingContext.MetadataProvider;
context.ModelMetadata = metadataProvider.GetMetadataForType(typeof(List<string>));
context.ValueProvider = new TestValueProvider(new Dictionary<string, object>());
// Act
var result = await binder.BindModelAsync(context);
// Assert
Assert.NotNull(result);
Assert.Empty(Assert.IsType<List<string>>(result.Model));
Assert.Equal("prefix", result.Key);
Assert.True(result.IsModelSet);
Assert.Same(result.ValidationNode.Model, result.Model);
Assert.Same(result.ValidationNode.Key, result.Key);
Assert.Same(result.ValidationNode.ModelMetadata, context.ModelMetadata);
}
public async Task CollectionModelBinder_DoesNotCreateCollection_ForTopLevelModel_OnFirstPass()
{
// Arrange
var binder = new CollectionModelBinder<string>();
var context = CreateContext();
context.ModelName = "param";
var metadataProvider = context.OperationBindingContext.MetadataProvider;
context.ModelMetadata = metadataProvider.GetMetadataForType(typeof(List<string>));
context.ValueProvider = new TestValueProvider(new Dictionary<string, object>());
// Act
var result = await binder.BindModelAsync(context);
// Assert
Assert.Null(result);
}
public async Task BindModel_SimpleCollection()
{
// Arrange
var valueProvider = new SimpleHttpValueProvider
{
{ "someName", new[] { "42", "100", "200" } }
};
var bindingContext = GetModelBindingContext(valueProvider);
var binder = new CollectionModelBinder<int>();
// Act
bool retVal = await binder.BindModelAsync(bindingContext);
// Assert
Assert.True(retVal);
Assert.Equal(new[] { 42, 100, 200 }, ((List<int>)bindingContext.Model).ToArray());
}
public async Task BindSimpleCollection_RawValueIsEmptyCollection_ReturnsEmptyList()
{
// Arrange
var binder = new CollectionModelBinder<int>(CreateIntBinder());
var context = GetModelBindingContext(new SimpleValueProvider());
// Act
var boundCollection = await binder.BindSimpleCollection(context, new ValueProviderResult(new string[0]));
// Assert
Assert.NotNull(boundCollection.Model);
Assert.Empty(boundCollection.Model);
}
public void BindModel_ComplexCollection() {
// Arrange
ControllerContext controllerContext = new ControllerContext();
CultureInfo culture = CultureInfo.GetCultureInfo("fr-FR");
ExtensibleModelBindingContext bindingContext = new ExtensibleModelBindingContext() {
ModelMetadata = new EmptyModelMetadataProvider().GetMetadataForType(null, typeof(int)),
ModelName = "someName",
ModelBinderProviders = new ModelBinderProviderCollection(),
ValueProvider = new SimpleValueProvider() {
{ "someName.index", new string[] { "foo", "bar", "baz" } },
{ "someName[foo]", "42" },
{ "someName[bar]", "100" },
{ "someName[baz]", "200" }
}
};
Mock<IExtensibleModelBinder> mockIntBinder = new Mock<IExtensibleModelBinder>();
mockIntBinder
.Expect(o => o.BindModel(controllerContext, It.IsAny<ExtensibleModelBindingContext>()))
.Returns(
delegate(ControllerContext cc, ExtensibleModelBindingContext mbc) {
mbc.Model = mbc.ValueProvider.GetValue(mbc.ModelName).ConvertTo(mbc.ModelType);
return true;
});
bindingContext.ModelBinderProviders.RegisterBinderForType(typeof(int), mockIntBinder.Object, true /* suppressPrefixCheck */);
CollectionModelBinder<int> modelBinder = new CollectionModelBinder<int>();
// Act
bool retVal = modelBinder.BindModel(controllerContext, bindingContext);
// Assert
CollectionAssert.AreEqual(new int[] { 42, 100, 200 }, bindingContext.Model as ICollection);
}
public void BindingListsWithIndex_ProducesSingleLengthCollection_WithNullValues()
{
// Arrange
string propertyName = "Addresses";
ModelMetadata modelMetadata = new EmptyModelMetadataProvider().GetMetadataForProperty(
modelAccessor: null,
containerType: typeof(UserWithAddress),
propertyName: propertyName);
ModelBindingContext bindingContext = new ModelBindingContext
{
ModelMetadata = modelMetadata,
ModelName = propertyName,
ValueProvider = new SimpleHttpValueProvider { { "Addresses.index", "10000" } }
};
HttpActionContext context = ContextUtil.CreateActionContext();
CollectionModelBinder<UserWithAddress> binder = new CollectionModelBinder<UserWithAddress>();
// Act
bool result = binder.BindModel(context, bindingContext);
// Assert
Assert.True(result);
List<UserWithAddress> boundModel = Assert.IsType<List<UserWithAddress>>(bindingContext.Model);
UserWithAddress listModel = Assert.Single(boundModel);
Assert.Null(listModel);
}
public void BindingUnboundedCollection_WithRecursiveRelation_ProducesSingleLengthCollection()
{
// Arrange
string propertyName = "People";
ModelMetadata modelMetadata = new EmptyModelMetadataProvider().GetMetadataForProperty(
modelAccessor: null,
containerType: typeof(PeopleModel),
propertyName: propertyName);
ModelBindingContext bindingContext = new ModelBindingContext
{
ModelMetadata = modelMetadata,
ModelName = propertyName,
ValueProvider = new SimpleHttpValueProvider { { propertyName, "test value" } }
};
HttpActionContext context = ContextUtil.CreateActionContext();
CollectionModelBinder<Person> binder =
new CollectionModelBinder<Person>();
// Act
bool result = binder.BindModel(context, bindingContext);
// Assert
Assert.True(result);
List<Person> boundModel =
Assert.IsType<List<Person>>(bindingContext.Model);
Person type = Assert.Single(boundModel);
Assert.Null(type.Name);
}
public async Task CollectionModelBinder_DoesNotCreateCollection_IfNotIsTopLevelObject(string prefix)
{
// Arrange
var binder = new CollectionModelBinder<string>(new StubModelBinder(result: ModelBindingResult.Failed()));
var bindingContext = CreateContext();
bindingContext.ModelName = ModelNames.CreatePropertyModelName(prefix, "ListProperty");
var metadataProvider = new TestModelMetadataProvider();
bindingContext.ModelMetadata = metadataProvider.GetMetadataForProperty(
typeof(ModelWithListProperty),
nameof(ModelWithListProperty.ListProperty));
bindingContext.ValueProvider = new TestValueProvider(new Dictionary<string, object>());
// Act
await binder.BindModelAsync(bindingContext);
// Assert
Assert.False(bindingContext.Result.IsModelSet);
}
public void BindModel_ComplexCollection()
{
// Arrange
CultureInfo culture = CultureInfo.GetCultureInfo("fr-FR");
Mock<IModelBinder> mockIntBinder = new Mock<IModelBinder>();
ModelBindingContext bindingContext = new ModelBindingContext
{
ModelMetadata = new EmptyModelMetadataProvider().GetMetadataForType(null, typeof(int)),
ModelName = "someName",
ValueProvider = new SimpleHttpValueProvider
{
{ "someName.index", new[] { "foo", "bar", "baz" } },
{ "someName[foo]", "42" },
{ "someName[bar]", "100" },
{ "someName[baz]", "200" }
}
};
HttpActionContext context = ContextUtil.CreateActionContext();
context.ControllerContext.Configuration.Services.Replace(typeof(ModelBinderProvider), new SimpleModelBinderProvider(typeof(int), mockIntBinder.Object));
mockIntBinder
.Setup(o => o.BindModel(context, It.IsAny<ModelBindingContext>()))
.Returns((HttpActionContext ec, ModelBindingContext mbc) =>
{
mbc.Model = mbc.ValueProvider.GetValue(mbc.ModelName).ConvertTo(mbc.ModelType);
return true;
});
CollectionModelBinder<int> modelBinder = new CollectionModelBinder<int>();
// Act
bool retVal = modelBinder.BindModel(context, bindingContext);
// Assert
Assert.Equal(new[] { 42, 100, 200 }, ((List<int>)bindingContext.Model).ToArray());
}
public async Task CollectionModelBinder_DoesNotCreateCollection_IfIsTopLevelObjectAndIsFirstChanceBinding()
{
// Arrange
var binder = new CollectionModelBinder<string>();
var context = CreateContext();
context.IsTopLevelObject = true;
context.IsFirstChanceBinding = true;
// Explicit prefix and empty model name both ignored.
context.BinderModelName = "prefix";
context.ModelName = string.Empty;
var metadataProvider = context.OperationBindingContext.MetadataProvider;
context.ModelMetadata = metadataProvider.GetMetadataForType(typeof(List<string>));
context.ValueProvider = new TestValueProvider(new Dictionary<string, object>());
// Act
var result = await binder.BindModelAsync(context);
// Assert
Assert.Null(result);
}
public async Task BindSimpleCollection_SubBindingSucceeds()
{
// Arrange
var culture = new CultureInfo("fr-FR");
var bindingContext = GetModelBindingContext(new SimpleHttpValueProvider());
ModelValidationNode childValidationNode = null;
Mock.Get<IModelBinder>(bindingContext.OperationBindingContext.ModelBinder)
.Setup(o => o.BindModelAsync(It.IsAny<ModelBindingContext>()))
.Returns((ModelBindingContext mbc) =>
{
Assert.Equal("someName", mbc.ModelName);
childValidationNode = new ModelValidationNode("someName", mbc.ModelMetadata, mbc.Model);
return Task.FromResult(new ModelBindingResult(42, mbc.ModelName, true, childValidationNode));
});
var modelBinder = new CollectionModelBinder<int>();
// Act
var boundCollection = await modelBinder.BindSimpleCollection(bindingContext, new int[1], culture);
// Assert
Assert.Equal(new[] { 42 }, boundCollection.Model.ToArray());
Assert.Equal(new[] { childValidationNode }, boundCollection.ValidationNode.ChildNodes.ToArray());
}
public async Task CollectionModelBinder_DoesNotCreateEmptyCollection_IfModelNonNull()
{
// Arrange
var binder = new CollectionModelBinder<string>(new StubModelBinder(result: ModelBindingResult.Failed()));
var bindingContext = CreateContext();
bindingContext.IsTopLevelObject = true;
var list = new List<string>();
bindingContext.Model = list;
// Lack of prefix and non-empty model name both ignored.
bindingContext.ModelName = "modelName";
var metadataProvider = new TestModelMetadataProvider();
bindingContext.ModelMetadata = metadataProvider.GetMetadataForType(typeof(List<string>));
bindingContext.ValueProvider = new TestValueProvider(new Dictionary<string, object>());
// Act
await binder.BindModelAsync(bindingContext);
// Assert
Assert.Same(list, bindingContext.Result.Model);
Assert.Empty(list);
Assert.True(bindingContext.Result.IsModelSet);
}
public void CanCreateInstance_ReturnsExpectedValue(Type modelType, bool expectedResult)
{
// Arrange
var binder = new CollectionModelBinder<int>(CreateIntBinder());
// Act
var result = binder.CanCreateInstance(modelType);
// Assert
Assert.Equal(expectedResult, result);
}
public void BindingNestedUnboundedCollection_WhenNoValuesArePresent_ProducesEmptyCollection()
{
// Arrange
string propertyName = "Addresses";
ModelMetadata modelMetadata = new EmptyModelMetadataProvider().GetMetadataForProperty(
modelAccessor: null,
containerType: typeof(UserWithAddress),
propertyName: propertyName);
ModelBindingContext bindingContext = new ModelBindingContext
{
ModelMetadata = modelMetadata,
ModelName = propertyName,
ValueProvider = new SimpleHttpValueProvider { { "Addresses.AddressLines", "some value" } }
};
HttpActionContext context = ContextUtil.CreateActionContext();
CollectionModelBinder<UserWithAddress> binder = new CollectionModelBinder<UserWithAddress>();
// Act
bool result = binder.BindModel(context, bindingContext);
// Assert
Assert.True(result);
List<UserWithAddress> boundModel = Assert.IsType<List<UserWithAddress>>(bindingContext.Model);
Assert.Empty(boundModel);
}
public async Task BindSimpleCollection_SubBindingSucceeds()
{
// Arrange
var culture = new CultureInfo("fr-FR");
var bindingContext = GetModelBindingContext(new SimpleValueProvider());
var elementBinder = new StubModelBinder(mbc =>
{
Assert.Equal("someName", mbc.ModelName);
mbc.Result = ModelBindingResult.Success(42);
});
var modelBinder = new CollectionModelBinder<int>(elementBinder);
// Act
var boundCollection = await modelBinder.BindSimpleCollection(
bindingContext,
new ValueProviderResult(new string[] { "0" }));
// Assert
Assert.Equal(new[] { 42 }, boundCollection.Model.ToArray());
}
public async Task BindSimpleCollection_RawValueIsEmptyCollection_ReturnsEmptyList()
{
// Arrange
var binder = new CollectionModelBinder<int>();
var context = new ModelBindingContext()
{
OperationBindingContext = new OperationBindingContext()
{
MetadataProvider = TestModelMetadataProvider.CreateDefaultProvider(),
},
};
// Act
var boundCollection = await binder.BindSimpleCollection(context, rawValue: new object[0], culture: null);
// Assert
Assert.NotNull(boundCollection.Model);
Assert.Empty(boundCollection.Model);
}
public async Task BindSimpleCollection_RawValueIsNull_ReturnsNull()
{
// Arrange
var binder = new CollectionModelBinder<int>();
// Act
var boundCollection = await binder.BindSimpleCollection(bindingContext: null, rawValue: null, culture: null);
// Assert
Assert.Null(boundCollection);
}
public async Task BindSimpleCollection_RawValueIsEmptyCollection_ReturnsEmptyList()
{
// Arrange
var binder = new CollectionModelBinder<int>();
// Act
var boundCollection = await binder.BindSimpleCollection(bindingContext: null, rawValue: new object[0], culture: null);
// Assert
Assert.NotNull(boundCollection);
Assert.Empty(boundCollection);
}
public async Task CollectionModelBinder_CreatesEmptyCollection_IfIsTopLevelObjectAndNotIsFirstChanceBinding()
{
// Arrange
var binder = new CollectionModelBinder<string>();
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(List<string>));
context.ValueProvider = new TestValueProvider(new Dictionary<string, object>());
// Act
var result = await binder.BindModelAsync(context);
// Assert
Assert.NotNull(result);
Assert.Empty(Assert.IsType<List<string>>(result.Model));
Assert.Equal("modelName", result.Key);
Assert.True(result.IsModelSet);
Assert.Same(result.ValidationNode.Model, result.Model);
Assert.Same(result.ValidationNode.Key, result.Key);
Assert.Same(result.ValidationNode.ModelMetadata, context.ModelMetadata);
}
public async Task BindModelAsync_SimpleCollectionWithNullValue_Succeeds()
{
// Arrange
var binder = new CollectionModelBinder<int>(CreateIntBinder());
var valueProvider = new SimpleValueProvider
{
{ "someName", null },
};
var bindingContext = GetModelBindingContext(valueProvider, isReadOnly: false);
// Act
await binder.BindModelAsync(bindingContext);
// Assert
Assert.True(bindingContext.Result.IsModelSet);
var model = Assert.IsType<List<int>>(bindingContext.Result.Model);
Assert.Empty(model);
}
public async Task BindModel_SimpleCollection_BindingContextModelNonNull_Succeeds(bool isReadOnly)
{
// Arrange
var valueProvider = new SimpleHttpValueProvider
{
{ "someName", new[] { "42", "100", "200" } }
};
var bindingContext = GetModelBindingContext(valueProvider, isReadOnly);
var modelState = bindingContext.ModelState;
var list = new List<int>();
bindingContext.Model = list;
var binder = new CollectionModelBinder<int>();
// Act
var result = await binder.BindModelAsync(bindingContext);
// Assert
Assert.NotNull(result);
Assert.True(result.IsModelSet);
Assert.Same(list, result.Model);
Assert.Equal(new[] { 42, 100, 200 }, list.ToArray());
Assert.True(modelState.IsValid);
}
public void BindModel_SimpleCollection()
{
// Arrange
ControllerContext controllerContext = new ControllerContext();
CultureInfo culture = CultureInfo.GetCultureInfo("fr-FR");
ExtensibleModelBindingContext bindingContext = new ExtensibleModelBindingContext
{
ModelMetadata = new EmptyModelMetadataProvider().GetMetadataForType(null, typeof(int)),
ModelName = "someName",
ModelBinderProviders = new ModelBinderProviderCollection(),
ValueProvider = new SimpleValueProvider
{
{ "someName", new[] { "42", "100", "200" } }
}
};
Mock<IExtensibleModelBinder> mockIntBinder = new Mock<IExtensibleModelBinder>();
mockIntBinder
.Setup(o => o.BindModel(controllerContext, It.IsAny<ExtensibleModelBindingContext>()))
.Returns(
delegate(ControllerContext cc, ExtensibleModelBindingContext mbc)
{
mbc.Model = mbc.ValueProvider.GetValue(mbc.ModelName).ConvertTo(mbc.ModelType);
return true;
});
bindingContext.ModelBinderProviders.RegisterBinderForType(typeof(int), mockIntBinder.Object, true /* suppressPrefixCheck */);
CollectionModelBinder<int> modelBinder = new CollectionModelBinder<int>();
// Act
bool retVal = modelBinder.BindModel(controllerContext, bindingContext);
// Assert
Assert.True(retVal);
Assert.Equal(new[] { 42, 100, 200 }, ((List<int>)bindingContext.Model).ToArray());
}
public async Task BindModel_ComplexCollection_BindingContextModelNonNull_Succeeds(bool isReadOnly)
{
// Arrange
var valueProvider = new SimpleValueProvider
{
{ "someName.index", new[] { "foo", "bar", "baz" } },
{ "someName[foo]", "42" },
{ "someName[bar]", "100" },
{ "someName[baz]", "200" }
};
var bindingContext = GetModelBindingContext(valueProvider, isReadOnly);
var modelState = bindingContext.ModelState;
var list = new List<int>();
bindingContext.Model = list;
var binder = new CollectionModelBinder<int>(CreateIntBinder());
// Act
await binder.BindModelAsync(bindingContext);
// Assert
Assert.True(bindingContext.Result.IsModelSet);
Assert.Same(list, bindingContext.Result.Model);
Assert.Equal(new[] { 42, 100, 200 }, list.ToArray());
Assert.True(modelState.IsValid);
}
