public async Task BindModelAsync_ValueProviderContainPrefix_Succeeds()
{
// Arrange
var valueProvider = new SimpleValueProvider
{
{ "someName[0]", "42" },
{ "someName[1]", "84" },
};
var bindingContext = GetBindingContext(valueProvider);
var metadataProvider = new TestModelMetadataProvider();
bindingContext.ModelMetadata = metadataProvider.GetMetadataForProperty(
typeof(ModelWithIntArrayProperty),
nameof(ModelWithIntArrayProperty.ArrayProperty));
var binder = new ArrayModelBinder <int>(
new SimpleTypeModelBinder(typeof(int), NullLoggerFactory.Instance),
NullLoggerFactory.Instance);
// Act
await binder.BindModelAsync(bindingContext);
// Assert
Assert.True(bindingContext.Result.IsModelSet);
var array = Assert.IsType <int[]>(bindingContext.Result.Model);
Assert.Equal(new[] { 42, 84 }, array);
}
public async Task ArrayModelBinder_DoesNotCreateCollection_IfNotIsTopLevelObject(
string prefix,
bool allowValidatingTopLevelNodes,
bool isBindingRequired)
{
// Arrange
var binder = new ArrayModelBinder <string>(
new SimpleTypeModelBinder(typeof(string), NullLoggerFactory.Instance),
NullLoggerFactory.Instance,
allowValidatingTopLevelNodes);
var bindingContext = CreateContext();
bindingContext.ModelName = ModelNames.CreatePropertyModelName(prefix, "ArrayProperty");
var metadataProvider = new TestModelMetadataProvider();
metadataProvider
.ForProperty(typeof(ModelWithArrayProperty), nameof(ModelWithArrayProperty.ArrayProperty))
.BindingDetails(b => b.IsBindingRequired = isBindingRequired);
bindingContext.ModelMetadata = metadataProvider.GetMetadataForProperty(
typeof(ModelWithArrayProperty),
nameof(ModelWithArrayProperty.ArrayProperty));
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 ArrayModelBinder_DoesNotCreateCollection_IfNotIsTopLevelObject(string prefix)
{
// Arrange
var binder = new ArrayModelBinder <string>(
new SimpleTypeModelBinder(typeof(string), NullLoggerFactory.Instance),
NullLoggerFactory.Instance);
var bindingContext = CreateContext();
bindingContext.ModelName = ModelNames.CreatePropertyModelName(prefix, "ArrayProperty");
var metadataProvider = new TestModelMetadataProvider();
bindingContext.ModelMetadata = metadataProvider.GetMetadataForProperty(
typeof(ModelWithArrayProperty),
nameof(ModelWithArrayProperty.ArrayProperty));
bindingContext.ValueProvider = new TestValueProvider(new Dictionary <string, object>());
// Act
await binder.BindModelAsync(bindingContext);
// Assert
Assert.False(bindingContext.Result.IsModelSet);
}
public async Task ArrayModelBinder_CreatesEmptyCollection_IfIsTopLevelObject()
{
// Arrange
var binder = new ArrayModelBinder <string>(
new SimpleTypeModelBinder(typeof(string), NullLoggerFactory.Instance),
NullLoggerFactory.Instance);
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(string[]));
bindingContext.ValueProvider = new TestValueProvider(new Dictionary <string, object>());
// Act
await binder.BindModelAsync(bindingContext);
// Assert
Assert.Empty(Assert.IsType <string[]>(bindingContext.Result.Model));
Assert.True(bindingContext.Result.IsModelSet);
}
public async Task ArrayModelBinder_CreatesEmptyCollectionAndAddsError_IfIsTopLevelObject()
{
// Arrange
var binder = new ArrayModelBinder <string>(
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(ArrayModelBinderTest)
.GetMethod(nameof(ActionWithArrayParameter), 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 <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 BindModelAsync_ModelMetadataNotReadOnly_ModelNonNull_FailsSilently(int[] model)
{
// Arrange
var arrayLength = model.Length;
var valueProvider = new SimpleValueProvider
{
{ "someName[0]", "42" },
{ "someName[1]", "84" },
};
var bindingContext = GetBindingContext(valueProvider);
bindingContext.Model = model;
var metadataProvider = new TestModelMetadataProvider();
metadataProvider.ForProperty(
typeof(ModelWithIntArrayProperty),
nameof(ModelWithIntArrayProperty.ArrayProperty)).BindingDetails(bd => bd.IsReadOnly = false);
bindingContext.ModelMetadata = metadataProvider.GetMetadataForProperty(
typeof(ModelWithIntArrayProperty),
nameof(ModelWithIntArrayProperty.ArrayProperty));
var binder = new ArrayModelBinder <int>(
new SimpleTypeModelBinder(typeof(int), NullLoggerFactory.Instance),
NullLoggerFactory.Instance);
// Act
await binder.BindModelAsync(bindingContext);
// Assert
Assert.True(bindingContext.Result.IsModelSet);
Assert.Same(model, bindingContext.Result.Model);
for (var i = 0; i < arrayLength; i++)
{
// Array should be unchanged.
Assert.Equal(357, model[i]);
}
}
public async Task ArrayModelBinder_CreatesEmptyCollection_IfIsTopLevelObject(
bool allowValidatingTopLevelNodes,
bool isBindingRequired)
{
// Arrange
var expectedErrorCount = isBindingRequired ? 1 : 0;
var binder = new ArrayModelBinder <string>(
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(ArrayModelBinderTest)
.GetMethod(nameof(ActionWithArrayParameter), 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 <string[]>(bindingContext.Result.Model));
Assert.True(bindingContext.Result.IsModelSet);
Assert.Equal(expectedErrorCount, bindingContext.ModelState.ErrorCount);
}
