aspnetcore/test/Microsoft.AspNetCore.Mvc.In.../CollectionModelBinderIntegr...

1260 lines
44 KiB
C#

// Copyright (c) .NET Foundation. All rights reserved.
// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
using System;
using System.Collections;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.ComponentModel.DataAnnotations;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc.Abstractions;
using Microsoft.AspNetCore.Mvc.ModelBinding;
using Microsoft.Extensions.Primitives;
using Xunit;
namespace Microsoft.AspNetCore.Mvc.IntegrationTests
{
// Integration tests targeting the behavior of the CollectionModelBinder with other model binders.
//
// Note that CollectionModelBinder handles both ICollection{T} and IList{T}
public class CollectionModelBinderIntegrationTest
{
[Fact]
public async Task CollectionModelBinder_BindsListOfSimpleType_WithPrefix_Success()
{
// Arrange
var parameterBinder = ModelBindingTestHelper.GetParameterBinder();
var parameter = new ParameterDescriptor()
{
Name = "parameter",
ParameterType = typeof(List<int>)
};
var testContext = ModelBindingTestHelper.GetTestContext(request =>
{
request.QueryString = new QueryString("?parameter[0]=10&parameter[1]=11");
});
var modelState = testContext.ModelState;
// Act
var modelBindingResult = await parameterBinder.BindModelAsync(parameter, testContext);
// Assert
Assert.True(modelBindingResult.IsModelSet);
var model = Assert.IsType<List<int>>(modelBindingResult.Model);
Assert.Equal(new List<int>() { 10, 11 }, model);
Assert.Equal(2, modelState.Count);
Assert.Equal(0, modelState.ErrorCount);
Assert.True(modelState.IsValid);
var entry = Assert.Single(modelState, kvp => kvp.Key == "parameter[0]").Value;
Assert.Equal("10", entry.AttemptedValue);
Assert.Equal("10", entry.RawValue);
entry = Assert.Single(modelState, kvp => kvp.Key == "parameter[1]").Value;
Assert.Equal("11", entry.AttemptedValue);
Assert.Equal("11", entry.RawValue);
}
[Theory]
[InlineData("?prefix[0]=10&prefix[1]=11")]
[InlineData("?prefix.index=low&prefix.index=high&prefix[low]=10&prefix[high]=11")]
[InlineData("?prefix.index=index&prefix.index=indexer&prefix[index]=10&prefix[indexer]=11")]
[InlineData("?prefix.index=index&prefix.index=indexer&prefix[index]=10&prefix[indexer]=11&prefix[extra]=12")]
public async Task CollectionModelBinder_BindsListOfSimpleType_WithExplicitPrefix_Success(string queryString)
{
// Arrange
var parameterBinder = ModelBindingTestHelper.GetParameterBinder();
var parameter = new ParameterDescriptor()
{
Name = "parameter",
BindingInfo = new BindingInfo()
{
BinderModelName = "prefix",
},
ParameterType = typeof(List<int>)
};
var testContext = ModelBindingTestHelper.GetTestContext(request =>
{
request.QueryString = new QueryString(queryString);
});
var modelState = testContext.ModelState;
// Act
var modelBindingResult = await parameterBinder.BindModelAsync(parameter, testContext);
// Assert
Assert.True(modelBindingResult.IsModelSet);
var model = Assert.IsType<List<int>>(modelBindingResult.Model);
Assert.Equal(new List<int>() { 10, 11 }, model);
Assert.Equal(2, modelState.Count);
Assert.Equal(0, modelState.ErrorCount);
Assert.True(modelState.IsValid);
}
[Theory]
[InlineData("?[0]=10&[1]=11")]
[InlineData("?index=low&index=high&[high]=11&[low]=10")]
[InlineData("?index=index&index=indexer&[indexer]=11&[index]=10")]
[InlineData("?index=index&index=indexer&[indexer]=11&[index]=10&[extra]=12")]
public async Task CollectionModelBinder_BindsCollectionOfSimpleType_EmptyPrefix_Success(string queryString)
{
// Arrange
var parameterBinder = ModelBindingTestHelper.GetParameterBinder();
var parameter = new ParameterDescriptor()
{
Name = "parameter",
ParameterType = typeof(ICollection<int>)
};
var testContext = ModelBindingTestHelper.GetTestContext(request =>
{
request.QueryString = new QueryString(queryString);
});
var modelState = testContext.ModelState;
// Act
var modelBindingResult = await parameterBinder.BindModelAsync(parameter, testContext);
// Assert
Assert.True(modelBindingResult.IsModelSet);
var model = Assert.IsType<List<int>>(modelBindingResult.Model);
Assert.Equal(new List<int> { 10, 11 }, model);
Assert.Equal(2, modelState.Count);
Assert.Equal(0, modelState.ErrorCount);
Assert.True(modelState.IsValid);
}
[Fact]
public async Task CollectionModelBinder_BindsListOfSimpleType_NoData()
{
// Arrange
var parameterBinder = ModelBindingTestHelper.GetParameterBinder();
var parameter = new ParameterDescriptor()
{
Name = "parameter",
ParameterType = typeof(List<int>)
};
var testContext = ModelBindingTestHelper.GetTestContext(request =>
{
request.QueryString = new QueryString("?");
});
var modelState = testContext.ModelState;
// Act
var modelBindingResult = await parameterBinder.BindModelAsync(parameter, testContext);
// Assert
Assert.True(modelBindingResult.IsModelSet);
Assert.Empty(Assert.IsType<List<int>>(modelBindingResult.Model));
Assert.Empty(modelState);
Assert.Equal(0, modelState.ErrorCount);
Assert.True(modelState.IsValid);
}
private class Person
{
public int Id { get; set; }
}
[Theory]
[InlineData("?[0].Id=10&[1].Id=11")]
[InlineData("?index=low&index=high&[low].Id=10&[high].Id=11")]
[InlineData("?parameter[0].Id=10&parameter[1].Id=11")]
[InlineData("?parameter.index=low&parameter.index=high&parameter[low].Id=10&parameter[high].Id=11")]
[InlineData("?parameter.index=index&parameter.index=indexer&parameter[index].Id=10&parameter[indexer].Id=11")]
public async Task CollectionModelBinder_BindsListOfComplexType_ImpliedPrefix_Success(string queryString)
{
// Arrange
var parameterBinder = ModelBindingTestHelper.GetParameterBinder();
var parameter = new ParameterDescriptor()
{
Name = "parameter",
ParameterType = typeof(List<Person>)
};
var testContext = ModelBindingTestHelper.GetTestContext(request =>
{
request.QueryString = new QueryString(queryString);
});
var modelState = testContext.ModelState;
// Act
var modelBindingResult = await parameterBinder.BindModelAsync(parameter, testContext);
// Assert
Assert.True(modelBindingResult.IsModelSet);
var model = Assert.IsType<List<Person>>(modelBindingResult.Model);
Assert.Equal(10, model[0].Id);
Assert.Equal(11, model[1].Id);
Assert.Equal(2, modelState.Count);
Assert.Equal(0, modelState.ErrorCount);
Assert.True(modelState.IsValid);
}
[Theory]
[InlineData("?prefix[0].Id=10&prefix[1].Id=11")]
[InlineData("?prefix.index=low&prefix.index=high&prefix[high].Id=11&prefix[low].Id=10")]
[InlineData("?prefix.index=index&prefix.index=indexer&prefix[indexer].Id=11&prefix[index].Id=10")]
public async Task CollectionModelBinder_BindsListOfComplexType_ExplicitPrefix_Success(string queryString)
{
// Arrange
var parameterBinder = ModelBindingTestHelper.GetParameterBinder();
var parameter = new ParameterDescriptor()
{
Name = "parameter",
BindingInfo = new BindingInfo()
{
BinderModelName = "prefix",
},
ParameterType = typeof(List<Person>)
};
var testContext = ModelBindingTestHelper.GetTestContext(request =>
{
request.QueryString = new QueryString(queryString);
});
var modelState = testContext.ModelState;
// Act
var modelBindingResult = await parameterBinder.BindModelAsync(parameter, testContext);
// Assert
Assert.True(modelBindingResult.IsModelSet);
var model = Assert.IsType<List<Person>>(modelBindingResult.Model);
Assert.Equal(10, model[0].Id);
Assert.Equal(11, model[1].Id);
Assert.Equal(2, modelState.Count);
Assert.Equal(0, modelState.ErrorCount);
Assert.True(modelState.IsValid);
}
[Fact]
public async Task CollectionModelBinder_BindsListOfComplexType_NoData()
{
// Arrange
var parameterBinder = ModelBindingTestHelper.GetParameterBinder();
var parameter = new ParameterDescriptor()
{
Name = "parameter",
ParameterType = typeof(List<Person>)
};
var testContext = ModelBindingTestHelper.GetTestContext(request =>
{
request.QueryString = new QueryString("?");
});
var modelState = testContext.ModelState;
// Act
var modelBindingResult = await parameterBinder.BindModelAsync(parameter, testContext);
// Assert
Assert.True(modelBindingResult.IsModelSet);
Assert.Empty(Assert.IsType<List<Person>>(modelBindingResult.Model));
Assert.Empty(modelState);
Assert.Equal(0, modelState.ErrorCount);
Assert.True(modelState.IsValid);
}
private class Person2
{
public int Id { get; set; }
[BindRequired]
public string Name { get; set; }
}
[Fact]
public async Task CollectionModelBinder_BindsListOfComplexType_WithRequiredProperty_WithPrefix_PartialData()
{
// Arrange
var parameterBinder = ModelBindingTestHelper.GetParameterBinder();
var parameter = new ParameterDescriptor()
{
Name = "parameter",
ParameterType = typeof(List<Person2>)
};
var testContext = ModelBindingTestHelper.GetTestContext(request =>
{
request.QueryString = new QueryString("?parameter[0].Id=10&parameter[1].Id=11");
});
var modelState = testContext.ModelState;
// Act
var modelBindingResult = await parameterBinder.BindModelAsync(parameter, testContext);
// Assert
Assert.True(modelBindingResult.IsModelSet);
var model = Assert.IsType<List<Person2>>(modelBindingResult.Model);
Assert.Equal(10, model[0].Id);
Assert.Equal(11, model[1].Id);
Assert.Null(model[0].Name);
Assert.Null(model[1].Name);
Assert.Equal(4, modelState.Count);
Assert.Equal(2, modelState.ErrorCount);
Assert.False(modelState.IsValid);
var entry = Assert.Single(modelState, kvp => kvp.Key == "parameter[0].Id").Value;
Assert.Equal("10", entry.AttemptedValue);
Assert.Equal("10", entry.RawValue);
entry = Assert.Single(modelState, kvp => kvp.Key == "parameter[1].Id").Value;
Assert.Equal("11", entry.AttemptedValue);
Assert.Equal("11", entry.RawValue);
entry = Assert.Single(modelState, kvp => kvp.Key == "parameter[0].Name").Value;
Assert.Null(entry.RawValue);
Assert.Equal(ModelValidationState.Invalid, entry.ValidationState);
var error = Assert.Single(entry.Errors);
Assert.Equal("A value for the 'Name' parameter or property was not provided.", error.ErrorMessage);
entry = Assert.Single(modelState, kvp => kvp.Key == "parameter[1].Name").Value;
Assert.Null(entry.RawValue);
Assert.Equal(ModelValidationState.Invalid, entry.ValidationState);
error = Assert.Single(entry.Errors);
Assert.Equal("A value for the 'Name' parameter or property was not provided.", error.ErrorMessage);
}
[Fact]
public async Task CollectionModelBinder_BindsListOfComplexType_WithRequiredProperty_WithExplicitPrefix_PartialData()
{
// Arrange
var parameterBinder = ModelBindingTestHelper.GetParameterBinder();
var parameter = new ParameterDescriptor()
{
Name = "parameter",
BindingInfo = new BindingInfo()
{
BinderModelName = "prefix",
},
ParameterType = typeof(List<Person2>)
};
var testContext = ModelBindingTestHelper.GetTestContext(request =>
{
request.QueryString = new QueryString("?prefix[0].Id=10&prefix[1].Id=11");
});
var modelState = testContext.ModelState;
// Act
var modelBindingResult = await parameterBinder.BindModelAsync(parameter, testContext);
// Assert
Assert.True(modelBindingResult.IsModelSet);
var model = Assert.IsType<List<Person2>>(modelBindingResult.Model);
Assert.Equal(10, model[0].Id);
Assert.Null(model[0].Name);
Assert.Equal(11, model[1].Id);
Assert.Null(model[1].Name);
Assert.Equal(4, modelState.Count);
Assert.Equal(2, modelState.ErrorCount);
Assert.False(modelState.IsValid);
var entry = Assert.Single(modelState, kvp => kvp.Key == "prefix[0].Id").Value;
Assert.Equal("10", entry.AttemptedValue);
Assert.Equal("10", entry.RawValue);
entry = Assert.Single(modelState, kvp => kvp.Key == "prefix[1].Id").Value;
Assert.Equal("11", entry.AttemptedValue);
Assert.Equal("11", entry.RawValue);
entry = Assert.Single(modelState, kvp => kvp.Key == "prefix[0].Name").Value;
Assert.Null(entry.RawValue);
Assert.Equal(ModelValidationState.Invalid, entry.ValidationState);
entry = Assert.Single(modelState, kvp => kvp.Key == "prefix[1].Name").Value;
Assert.Null(entry.RawValue);
Assert.Equal(ModelValidationState.Invalid, entry.ValidationState);
}
[Fact]
public async Task CollectionModelBinder_BindsCollectionOfComplexType_WithRequiredProperty_EmptyPrefix_PartialData()
{
// Arrange
var parameterBinder = ModelBindingTestHelper.GetParameterBinder();
var parameter = new ParameterDescriptor()
{
Name = "parameter",
ParameterType = typeof(ICollection<Person2>)
};
var testContext = ModelBindingTestHelper.GetTestContext(request =>
{
request.QueryString = new QueryString("?[0].Id=10&[1].Id=11");
});
var modelState = testContext.ModelState;
// Act
var modelBindingResult = await parameterBinder.BindModelAsync(parameter, testContext);
// Assert
Assert.True(modelBindingResult.IsModelSet);
var model = Assert.IsType<List<Person2>>(modelBindingResult.Model);
Assert.Equal(10, model[0].Id);
Assert.Null(model[0].Name);
Assert.Equal(11, model[1].Id);
Assert.Null(model[1].Name);
Assert.Equal(4, modelState.Count);
Assert.Equal(2, modelState.ErrorCount);
Assert.False(modelState.IsValid);
var entry = Assert.Single(modelState, kvp => kvp.Key == "[0].Id").Value;
Assert.Equal("10", entry.AttemptedValue);
Assert.Equal("10", entry.RawValue);
entry = Assert.Single(modelState, kvp => kvp.Key == "[1].Id").Value;
Assert.Equal("11", entry.AttemptedValue);
Assert.Equal("11", entry.RawValue);
entry = Assert.Single(modelState, kvp => kvp.Key == "[0].Name").Value;
Assert.Null(entry.RawValue);
Assert.Equal(ModelValidationState.Invalid, entry.ValidationState);
entry = Assert.Single(modelState, kvp => kvp.Key == "[1].Name").Value;
Assert.Null(entry.RawValue);
Assert.Equal(ModelValidationState.Invalid, entry.ValidationState);
}
[Fact]
public async Task CollectionModelBinder_BindsListOfSimpleType_WithIndex_Success()
{
// Arrange
var parameterBinder = ModelBindingTestHelper.GetParameterBinder();
var parameter = new ParameterDescriptor()
{
Name = "parameter",
ParameterType = typeof(List<int>)
};
var testContext = ModelBindingTestHelper.GetTestContext(request =>
{
request.QueryString =
new QueryString("?parameter.index=low&parameter.index=high&parameter[low]=10&parameter[high]=11");
});
var modelState = testContext.ModelState;
// Act
var modelBindingResult = await parameterBinder.BindModelAsync(parameter, testContext);
// Assert
Assert.True(modelBindingResult.IsModelSet);
var model = Assert.IsType<List<int>>(modelBindingResult.Model);
Assert.Equal(new List<int>() { 10, 11 }, model);
// "index" is not stored in ModelState.
Assert.Equal(2, modelState.Count);
Assert.Equal(0, modelState.ErrorCount);
Assert.True(modelState.IsValid);
var entry = Assert.Single(modelState, kvp => kvp.Key == "parameter[low]").Value;
Assert.Equal("10", entry.AttemptedValue);
Assert.Equal("10", entry.RawValue);
Assert.Equal(ModelValidationState.Valid, entry.ValidationState);
entry = Assert.Single(modelState, kvp => kvp.Key == "parameter[high]").Value;
Assert.Equal("11", entry.AttemptedValue);
Assert.Equal("11", entry.RawValue);
Assert.Equal(ModelValidationState.Valid, entry.ValidationState);
}
[Fact]
public async Task CollectionModelBinder_BindsCollectionOfComplexType_WithRequiredProperty_WithIndex_PartialData()
{
// Arrange
var parameterBinder = ModelBindingTestHelper.GetParameterBinder();
var parameter = new ParameterDescriptor()
{
Name = "parameter",
ParameterType = typeof(ICollection<Person2>)
};
var testContext = ModelBindingTestHelper.GetTestContext(request =>
{
request.QueryString = new QueryString("?index=low&index=high&[high].Id=11&[low].Id=10");
});
var modelState = testContext.ModelState;
// Act
var modelBindingResult = await parameterBinder.BindModelAsync(parameter, testContext);
// Assert
Assert.True(modelBindingResult.IsModelSet);
var model = Assert.IsType<List<Person2>>(modelBindingResult.Model);
Assert.Equal(10, model[0].Id);
Assert.Null(model[0].Name);
Assert.Equal(11, model[1].Id);
Assert.Null(model[1].Name);
Assert.Equal(4, modelState.Count);
Assert.Equal(2, modelState.ErrorCount);
Assert.False(modelState.IsValid);
var entry = Assert.Single(modelState, kvp => kvp.Key == "[low].Id").Value;
Assert.Equal("10", entry.AttemptedValue);
Assert.Equal("10", entry.RawValue);
entry = Assert.Single(modelState, kvp => kvp.Key == "[high].Id").Value;
Assert.Equal("11", entry.AttemptedValue);
Assert.Equal("11", entry.RawValue);
entry = Assert.Single(modelState, kvp => kvp.Key == "[low].Name").Value;
Assert.Null(entry.RawValue);
Assert.Equal(ModelValidationState.Invalid, entry.ValidationState);
entry = Assert.Single(modelState, kvp => kvp.Key == "[high].Name").Value;
Assert.Null(entry.RawValue);
Assert.Equal(ModelValidationState.Invalid, entry.ValidationState);
}
[Fact]
public async Task CollectionModelBinder_BindsListOfComplexType_WithRequiredProperty_NoData()
{
// Arrange
var parameterBinder = ModelBindingTestHelper.GetParameterBinder();
var parameter = new ParameterDescriptor()
{
Name = "parameter",
ParameterType = typeof(List<Person2>)
};
var testContext = ModelBindingTestHelper.GetTestContext(request =>
{
request.QueryString = new QueryString("?");
});
var modelState = testContext.ModelState;
// Act
var modelBindingResult = await parameterBinder.BindModelAsync(parameter, testContext);
// Assert
Assert.True(modelBindingResult.IsModelSet);
Assert.Empty(Assert.IsType<List<Person2>>(modelBindingResult.Model));
Assert.Empty(modelState);
Assert.Equal(0, modelState.ErrorCount);
Assert.True(modelState.IsValid);
}
private class Person4
{
public IList<Address4> Addresses { get; set; }
}
private class Address4
{
public int Zip { get; set; }
public string Street { get; set; }
}
[Fact]
public async Task CollectionModelBinder_UsesCustomIndexes()
{
// Arrange
var parameterBinder = ModelBindingTestHelper.GetParameterBinder();
var parameter = new ParameterDescriptor()
{
Name = "parameter",
ParameterType = typeof(Person4)
};
var testContext = ModelBindingTestHelper.GetTestContext(request =>
{
var formCollection = new FormCollection(new Dictionary<string, StringValues>()
{
{ "Addresses.index", new [] { "Key1", "Key2" } },
{ "Addresses[Key1].Street", new [] { "Street1" } },
{ "Addresses[Key2].Street", new [] { "Street2" } },
});
request.Form = formCollection;
request.ContentType = "application/x-www-form-urlencoded";
});
var modelState = testContext.ModelState;
// Act
var modelBindingResult = await parameterBinder.BindModelAsync(parameter, testContext);
// Assert
Assert.True(modelBindingResult.IsModelSet);
Assert.IsType<Person4>(modelBindingResult.Model);
Assert.Equal(2, modelState.Count);
Assert.Equal(0, modelState.ErrorCount);
Assert.True(modelState.IsValid);
var entry = Assert.Single(modelState, kvp => kvp.Key == "Addresses[Key1].Street").Value;
Assert.Equal("Street1", entry.AttemptedValue);
Assert.Equal("Street1", entry.RawValue);
entry = Assert.Single(modelState, kvp => kvp.Key == "Addresses[Key2].Street").Value;
Assert.Equal("Street2", entry.AttemptedValue);
Assert.Equal("Street2", entry.RawValue);
}
private class Person5
{
public IList<Address5> Addresses { get; set; }
}
private class Address5
{
public int Zip { get; set; }
[StringLength(3)]
public string Street { get; set; }
}
[Fact]
public async Task CollectionModelBinder_UsesCustomIndexes_AddsErrorsWithCorrectKeys()
{
// Arrange
var parameterBinder = ModelBindingTestHelper.GetParameterBinder();
var parameter = new ParameterDescriptor()
{
Name = "parameter",
ParameterType = typeof(Person5)
};
var testContext = ModelBindingTestHelper.GetTestContext(request =>
{
var formCollection = new FormCollection(new Dictionary<string, StringValues>()
{
{ "Addresses.index", new [] { "Key1" } },
{ "Addresses[Key1].Street", new [] { "Street1" } },
});
request.Form = formCollection;
request.ContentType = "application/x-www-form-urlencoded";
});
var modelState = testContext.ModelState;
// Act
var modelBindingResult = await parameterBinder.BindModelAsync(parameter, testContext);
// Assert
Assert.True(modelBindingResult.IsModelSet);
Assert.IsType<Person5>(modelBindingResult.Model);
Assert.False(modelState.IsValid);
var kvp = Assert.Single(modelState);
Assert.Equal("Addresses[Key1].Street", kvp.Key);
var entry = kvp.Value;
var error = Assert.Single(entry.Errors);
Assert.Equal(ValidationAttributeUtil.GetStringLengthErrorMessage(null, 3, "Street"), error.ErrorMessage);
}
[Theory]
[InlineData("?[0].Street=LongStreet")]
[InlineData("?index=low&[low].Street=LongStreet")]
[InlineData("?parameter[0].Street=LongStreet")]
[InlineData("?parameter.index=low&parameter[low].Street=LongStreet")]
[InlineData("?parameter.index=index&parameter[index].Street=LongStreet")]
public async Task CollectionModelBinder_BindsCollectionOfComplexType_ImpliedPrefix_FindsValidationErrors(
string queryString)
{
// Arrange
var parameterBinder = ModelBindingTestHelper.GetParameterBinder();
var parameter = new ParameterDescriptor()
{
Name = "parameter",
ParameterType = typeof(ICollection<Address5>),
};
var testContext = ModelBindingTestHelper.GetTestContext(request =>
{
request.QueryString = new QueryString(queryString);
});
var modelState = testContext.ModelState;
// Act
var modelBindingResult = await parameterBinder.BindModelAsync(parameter, testContext);
// Assert
Assert.True(modelBindingResult.IsModelSet);
var model = Assert.IsType<List<Address5>>(modelBindingResult.Model);
var address = Assert.Single(model);
Assert.Equal("LongStreet", address.Street);
Assert.False(modelState.IsValid);
var entry = Assert.Single(modelState).Value;
var error = Assert.Single(entry.Errors);
Assert.Equal(ValidationAttributeUtil.GetStringLengthErrorMessage(null, 3, "Street"), error.ErrorMessage);
}
// parameter type, form content, expected type
public static TheoryData<Type, IDictionary<string, StringValues>, Type> CollectionTypeData
{
get
{
return new TheoryData<Type, IDictionary<string, StringValues>, Type>
{
{
typeof(IEnumerable<string>),
new Dictionary<string, StringValues>
{
{ "[0]", new[] { "hello" } },
{ "[1]", new[] { "world" } },
},
typeof(List<string>)
},
{
typeof(ICollection<string>),
new Dictionary<string, StringValues>
{
{ "index", new[] { "low", "high" } },
{ "[low]", new[] { "hello" } },
{ "[high]", new[] { "world" } },
},
typeof(List<string>)
},
{
typeof(IReadOnlyCollection<string>),
new Dictionary<string, StringValues>
{
{ "index", new[] { "low", "high" } },
{ "[low]", new[] { "hello" } },
{ "[high]", new[] { "world" } },
},
typeof(List<string>)
},
{
typeof(IList<string>),
new Dictionary<string, StringValues>
{
{ "[0]", new[] { "hello" } },
{ "[1]", new[] { "world" } },
},
typeof(List<string>)
},
{
typeof(IReadOnlyList<string>),
new Dictionary<string, StringValues>
{
{ "[0]", new[] { "hello" } },
{ "[1]", new[] { "world" } },
},
typeof(List<string>)
},
{
typeof(List<string>),
new Dictionary<string, StringValues>
{
{ "index", new[] { "low", "high" } },
{ "[low]", new[] { "hello" } },
{ "[high]", new[] { "world" } },
},
typeof(List<string>)
},
{
typeof(ClosedGenericCollection),
new Dictionary<string, StringValues>
{
{ "[0]", new[] { "hello" } },
{ "[1]", new[] { "world" } },
},
typeof(ClosedGenericCollection)
},
{
typeof(ClosedGenericList),
new Dictionary<string, StringValues>
{
{ "index", new[] { "low", "high" } },
{ "[low]", new[] { "hello" } },
{ "[high]", new[] { "world" } },
},
typeof(ClosedGenericList)
},
{
typeof(ExplicitClosedGenericCollection),
new Dictionary<string, StringValues>
{
{ "[0]", new[] { "hello" } },
{ "[1]", new[] { "world" } },
},
typeof(ExplicitClosedGenericCollection)
},
{
typeof(ExplicitClosedGenericList),
new Dictionary<string, StringValues>
{
{ "index", new[] { "low", "high" } },
{ "[low]", new[] { "hello" } },
{ "[high]", new[] { "world" } },
},
typeof(ExplicitClosedGenericList)
},
{
typeof(ExplicitCollection<string>),
new Dictionary<string, StringValues>
{
{ "[0]", new[] { "hello" } },
{ "[1]", new[] { "world" } },
},
typeof(ExplicitCollection<string>)
},
{
typeof(ExplicitList<string>),
new Dictionary<string, StringValues>
{
{ "index", new[] { "low", "high" } },
{ "[low]", new[] { "hello" } },
{ "[high]", new[] { "world" } },
},
typeof(ExplicitList<string>)
},
{
typeof(IEnumerable<string>),
new Dictionary<string, StringValues>
{
{ string.Empty, new[] { "hello", "world" } },
},
typeof(List<string>)
},
{
typeof(ICollection<string>),
new Dictionary<string, StringValues>
{
{ "[]", new[] { "hello", "world" } },
},
typeof(List<string>)
},
{
typeof(IList<string>),
new Dictionary<string, StringValues>
{
{ string.Empty, new[] { "hello", "world" } },
},
typeof(List<string>)
},
{
typeof(List<string>),
new Dictionary<string, StringValues>
{
{ "[]", new[] { "hello", "world" } },
},
typeof(List<string>)
},
{
typeof(ClosedGenericCollection),
new Dictionary<string, StringValues>
{
{ string.Empty, new[] { "hello", "world" } },
},
typeof(ClosedGenericCollection)
},
{
typeof(ClosedGenericList),
new Dictionary<string, StringValues>
{
{ "[]", new[] { "hello", "world" } },
},
typeof(ClosedGenericList)
},
{
typeof(ExplicitClosedGenericCollection),
new Dictionary<string, StringValues>
{
{ string.Empty, new[] { "hello", "world" } },
},
typeof(ExplicitClosedGenericCollection)
},
{
typeof(ExplicitClosedGenericList),
new Dictionary<string, StringValues>
{
{ "[]", new[] { "hello", "world" } },
},
typeof(ExplicitClosedGenericList)
},
{
typeof(ExplicitCollection<string>),
new Dictionary<string, StringValues>
{
{ string.Empty, new[] { "hello", "world" } },
},
typeof(ExplicitCollection<string>)
},
{
typeof(ExplicitList<string>),
new Dictionary<string, StringValues>
{
{ "[]", new[] { "hello", "world" } },
},
typeof(ExplicitList<string>)
},
};
}
}
[Theory]
[MemberData(nameof(CollectionTypeData))]
public async Task CollectionModelBinder_BindsParameterToExpectedType(
Type parameterType,
Dictionary<string, StringValues> formContent,
Type expectedType)
{
// Arrange
var expectedCollection = new List<string> { "hello", "world" };
var parameter = new ParameterDescriptor
{
Name = "parameter",
ParameterType = parameterType,
};
var parameterBinder = ModelBindingTestHelper.GetParameterBinder();
var testContext = ModelBindingTestHelper.GetTestContext(request =>
{
request.Form = new FormCollection(formContent);
});
var modelState = testContext.ModelState;
// Act
var modelBindingResult = await parameterBinder.BindModelAsync(parameter, testContext);
// Assert
Assert.True(modelBindingResult.IsModelSet);
Assert.IsType(expectedType, modelBindingResult.Model);
var model = modelBindingResult.Model as IEnumerable<string>;
Assert.NotNull(model); // Guard
Assert.Equal(expectedCollection, model);
Assert.True(modelState.IsValid);
Assert.NotEmpty(modelState);
Assert.Equal(0, modelState.ErrorCount);
}
private class ClosedGenericCollection : Collection<string>
{
}
private class ClosedGenericList : List<string>
{
}
private class ExplicitClosedGenericCollection : ICollection<string>
{
private List<string> _data = new List<string>();
int ICollection<string>.Count
{
get
{
throw new NotImplementedException();
}
}
bool ICollection<string>.IsReadOnly
{
get
{
return false;
}
}
void ICollection<string>.Add(string item)
{
_data.Add(item);
}
void ICollection<string>.Clear()
{
_data.Clear();
}
bool ICollection<string>.Contains(string item)
{
throw new NotImplementedException();
}
void ICollection<string>.CopyTo(string[] array, int arrayIndex)
{
throw new NotImplementedException();
}
IEnumerator IEnumerable.GetEnumerator()
{
return ((IEnumerable)_data).GetEnumerator();
}
IEnumerator<string> IEnumerable<string>.GetEnumerator()
{
return _data.GetEnumerator();
}
bool ICollection<string>.Remove(string item)
{
throw new NotImplementedException();
}
}
private class ExplicitClosedGenericList : IList<string>
{
private List<string> _data = new List<string>();
string IList<string>.this[int index]
{
get
{
throw new NotImplementedException();
}
set
{
throw new NotImplementedException();
}
}
int ICollection<string>.Count
{
get
{
throw new NotImplementedException();
}
}
bool ICollection<string>.IsReadOnly
{
get
{
return false;
}
}
void ICollection<string>.Add(string item)
{
_data.Add(item);
}
void ICollection<string>.Clear()
{
_data.Clear();
}
bool ICollection<string>.Contains(string item)
{
throw new NotImplementedException();
}
void ICollection<string>.CopyTo(string[] array, int arrayIndex)
{
throw new NotImplementedException();
}
IEnumerator IEnumerable.GetEnumerator()
{
return ((IEnumerable)_data).GetEnumerator();
}
IEnumerator<string> IEnumerable<string>.GetEnumerator()
{
return _data.GetEnumerator();
}
int IList<string>.IndexOf(string item)
{
throw new NotImplementedException();
}
void IList<string>.Insert(int index, string item)
{
throw new NotImplementedException();
}
bool ICollection<string>.Remove(string item)
{
throw new NotImplementedException();
}
void IList<string>.RemoveAt(int index)
{
throw new NotImplementedException();
}
}
private class ExplicitCollection<T> : ICollection<T>
{
private List<T> _data = new List<T>();
int ICollection<T>.Count
{
get
{
throw new NotImplementedException();
}
}
bool ICollection<T>.IsReadOnly
{
get
{
return false;
}
}
void ICollection<T>.Add(T item)
{
_data.Add(item);
}
void ICollection<T>.Clear()
{
_data.Clear();
}
bool ICollection<T>.Contains(T item)
{
throw new NotImplementedException();
}
void ICollection<T>.CopyTo(T[] array, int arrayIndex)
{
throw new NotImplementedException();
}
IEnumerator IEnumerable.GetEnumerator()
{
return ((IEnumerable)_data).GetEnumerator();
}
IEnumerator<T> IEnumerable<T>.GetEnumerator()
{
return _data.GetEnumerator();
}
bool ICollection<T>.Remove(T item)
{
throw new NotImplementedException();
}
}
private class ExplicitList<T> : IList<T>
{
private List<T> _data = new List<T>();
T IList<T>.this[int index]
{
get
{
throw new NotImplementedException();
}
set
{
throw new NotImplementedException();
}
}
int ICollection<T>.Count
{
get
{
throw new NotImplementedException();
}
}
bool ICollection<T>.IsReadOnly
{
get
{
return false;
}
}
void ICollection<T>.Add(T item)
{
_data.Add(item);
}
void ICollection<T>.Clear()
{
_data.Clear();
}
bool ICollection<T>.Contains(T item)
{
throw new NotImplementedException();
}
void ICollection<T>.CopyTo(T[] array, int arrayIndex)
{
throw new NotImplementedException();
}
IEnumerator IEnumerable.GetEnumerator()
{
return ((IEnumerable)_data).GetEnumerator();
}
IEnumerator<T> IEnumerable<T>.GetEnumerator()
{
return _data.GetEnumerator();
}
int IList<T>.IndexOf(T item)
{
throw new NotImplementedException();
}
void IList<T>.Insert(int index, T item)
{
throw new NotImplementedException();
}
bool ICollection<T>.Remove(T item)
{
throw new NotImplementedException();
}
void IList<T>.RemoveAt(int index)
{
throw new NotImplementedException();
}
}
}
}