public async Task FormFileModelBinder_UsesFieldNameForTopLevelObject(bool isTopLevel, string expected)
{
// Arrange
var formFiles = new FormFileCollection();
formFiles.Add(GetMockFormFile("FieldName", "file1.txt"));
formFiles.Add(GetMockFormFile("ModelName", "file1.txt"));
var httpContext = GetMockHttpContext(GetMockFormCollection(formFiles));
var bindingContext = GetBindingContext(typeof(IFormFile), httpContext);
bindingContext.IsTopLevelObject = isTopLevel;
bindingContext.FieldName = "FieldName";
bindingContext.ModelName = "ModelName";
var binder = new FormFileModelBinder();
// Act
var result = await binder.BindModelResultAsync(bindingContext);
// Assert
Assert.NotEqual(default(ModelBindingResult), result);
Assert.True(result.IsModelSet);
var file = Assert.IsAssignableFrom <IFormFile>(result.Model);
Assert.Equal(expected, file.Name);
}
public async Task FormFileModelBinder_UsesFieldNameForTopLevelObject(bool isTopLevel, string expected)
{
// Arrange
var formFiles = new FormFileCollection
{
GetMockFormFile("FieldName", "file1.txt"),
GetMockFormFile("ModelName", "file1.txt")
};
var httpContext = GetMockHttpContext(GetMockFormCollection(formFiles));
var bindingContext = GetBindingContext(typeof(IFormFile), httpContext);
bindingContext.IsTopLevelObject = isTopLevel;
bindingContext.FieldName = "FieldName";
bindingContext.ModelName = "ModelName";
var binder = new FormFileModelBinder(NullLoggerFactory.Instance);
// Act
await binder.BindModelAsync(bindingContext);
// Assert
Assert.True(bindingContext.Result.IsModelSet);
var file = Assert.IsAssignableFrom <IFormFile>(bindingContext.Result.Model);
Assert.Equal(expected, file.Name);
}
public async Task FormFileModelBinder_ExpectMultipleFiles_BindSuccessful()
{
// Arrange
var formFiles = GetTwoFiles();
var httpContext = GetMockHttpContext(GetMockFormCollection(formFiles));
var bindingContext = GetBindingContext(typeof(IEnumerable <IFormFile>), httpContext);
var binder = new FormFileModelBinder();
// Act
var result = await binder.BindModelResultAsync(bindingContext);
// Assert
Assert.NotEqual(default(ModelBindingResult), result);
Assert.True(result.IsModelSet);
var entry = bindingContext.ValidationState[result.Model];
Assert.False(entry.SuppressValidation);
Assert.Equal("file", entry.Key);
Assert.Null(entry.Metadata);
var files = Assert.IsAssignableFrom <IList <IFormFile> >(result.Model);
Assert.Equal(2, files.Count);
}
public async Task FormFileModelBinder_ReturnsResult_ForReadOnlyDestination()
{
// Arrange
var binder = new FormFileModelBinder(NullLoggerFactory.Instance);
var formFiles = GetTwoFiles();
var httpContext = GetMockHttpContext(GetMockFormCollection(formFiles));
var bindingContext = GetBindingContextForReadOnlyArray(httpContext);
// Act
await binder.BindModelAsync(bindingContext);
// Assert
Assert.True(bindingContext.Result.IsModelSet);
Assert.NotNull(bindingContext.Result.Model);
}
public async Task FormFileModelBinder_ReturnsFailedResult_ForCollectionsItCannotCreate()
{
// Arrange
var binder = new FormFileModelBinder(NullLoggerFactory.Instance);
var formFiles = GetTwoFiles();
var httpContext = GetMockHttpContext(GetMockFormCollection(formFiles));
var bindingContext = GetBindingContext(typeof(ISet <IFormFile>), httpContext);
// Act
await binder.BindModelAsync(bindingContext);
// Assert
Assert.False(bindingContext.Result.IsModelSet);
Assert.Null(bindingContext.Result.Model);
}
public async Task FormFileModelBinder_ReturnsFailedResult_WhenNoFilePosted()
{
// Arrange
var formFiles = new FormFileCollection();
var httpContext = GetMockHttpContext(GetMockFormCollection(formFiles));
var bindingContext = GetBindingContext(typeof(IFormFile), httpContext);
var binder = new FormFileModelBinder();
// Act
await binder.BindModelAsync(bindingContext);
// Assert
Assert.False(bindingContext.Result.IsModelSet);
Assert.Null(bindingContext.Result.Model);
}
public async Task FormFileModelBinder_ReturnsFailedResult_ForCollectionsItCannotCreate()
{
// Arrange
var binder = new FormFileModelBinder();
var formFiles = GetTwoFiles();
var httpContext = GetMockHttpContext(GetMockFormCollection(formFiles));
var bindingContext = GetBindingContext(typeof(ISet <IFormFile>), httpContext);
// Act
var result = await binder.BindModelResultAsync(bindingContext);
// Assert
Assert.NotEqual(default(ModelBindingResult), result);
Assert.False(result.IsModelSet);
Assert.Null(result.Model);
}
public async Task FormFileModelBinder_ReturnsFailedResult_ForReadOnlyDestination()
{
// Arrange
var binder = new FormFileModelBinder();
var formFiles = GetTwoFiles();
var httpContext = GetMockHttpContext(GetMockFormCollection(formFiles));
var bindingContext = GetBindingContextForReadOnlyArray(httpContext);
// Act
var result = await binder.BindModelResultAsync(bindingContext);
// Assert
Assert.NotEqual(default(ModelBindingResult), result);
Assert.False(result.IsModelSet);
Assert.Null(result.Model);
}
public async Task FormFileModelBinder_BindsFiles_ForCollectionsItCanCreate(Type destinationType)
{
// Arrange
var binder = new FormFileModelBinder(NullLoggerFactory.Instance);
var formFiles = GetTwoFiles();
var httpContext = GetMockHttpContext(GetMockFormCollection(formFiles));
var bindingContext = GetBindingContext(destinationType, httpContext);
// Act
await binder.BindModelAsync(bindingContext);
// Assert
Assert.True(bindingContext.Result.IsModelSet);
Assert.IsAssignableFrom(destinationType, bindingContext.Result.Model);
Assert.Equal(formFiles, bindingContext.Result.Model as IEnumerable <IFormFile>);
}
public async Task FormFileModelBinder_ReturnsFailedResult_WhenNamesDoNotMatch()
{
// Arrange
var formFiles = new FormFileCollection();
formFiles.Add(GetMockFormFile("different name", "file1.txt"));
var httpContext = GetMockHttpContext(GetMockFormCollection(formFiles));
var bindingContext = GetBindingContext(typeof(IFormFile), httpContext);
var binder = new FormFileModelBinder();
// Act
await binder.BindModelAsync(bindingContext);
// Assert
Assert.False(bindingContext.Result.IsModelSet);
Assert.Null(bindingContext.Result.Model);
}
public async Task FormFileModelBinder_BindsFiles_ForCollectionsItCanCreate(Type destinationType)
{
// Arrange
var binder = new FormFileModelBinder();
var formFiles = GetTwoFiles();
var httpContext = GetMockHttpContext(GetMockFormCollection(formFiles));
var bindingContext = GetBindingContext(destinationType, httpContext);
// Act
var result = await binder.BindModelResultAsync(bindingContext);
// Assert
Assert.NotEqual(default(ModelBindingResult), result);
Assert.True(result.IsModelSet);
Assert.IsAssignableFrom(destinationType, result.Model);
Assert.Equal(formFiles, result.Model as IEnumerable <IFormFile>);
}
public async Task FormFileModelBinder_ReturnsFailedResult_WithNoFileNameAndZeroLength()
{
// Arrange
var formFiles = new FormFileCollection();
formFiles.Add(GetMockFormFile("file", ""));
var httpContext = GetMockHttpContext(GetMockFormCollection(formFiles));
var bindingContext = GetBindingContext(typeof(IFormFile), httpContext);
var binder = new FormFileModelBinder();
// Act
await binder.BindModelAsync(bindingContext);
// Assert
Assert.False(bindingContext.Result.IsModelSet);
Assert.Null(bindingContext.Result.Model);
}
public async Task FormFileModelBinder_ReturnsFailedResult_WithEmptyContentDisposition()
{
// Arrange
var formFiles = new FormFileCollection();
formFiles.Add(new Mock <IFormFile>().Object);
var httpContext = GetMockHttpContext(GetMockFormCollection(formFiles));
var bindingContext = GetBindingContext(typeof(IFormFile), httpContext);
var binder = new FormFileModelBinder();
// Act
await binder.BindModelAsync(bindingContext);
// Assert
Assert.False(bindingContext.Result.IsModelSet);
Assert.Null(bindingContext.Result.Model);
}
public async Task FormFileModelBinder_ExpectSingleFile_BindFirstFile()
{
// Arrange
var formFiles = GetTwoFiles();
var httpContext = GetMockHttpContext(GetMockFormCollection(formFiles));
var bindingContext = GetBindingContext(typeof(IFormFile), httpContext);
var binder = new FormFileModelBinder();
// Act
var result = await binder.BindModelResultAsync(bindingContext);
// Assert
Assert.NotEqual(default(ModelBindingResult), result);
var file = Assert.IsAssignableFrom <IFormFile>(result.Model);
Assert.Equal("file1.txt", file.FileName);
}
public async Task FormFileModelBinder_ExpectSingleFile_BindFirstFile()
{
// Arrange
var formFiles = GetTwoFiles();
var httpContext = GetMockHttpContext(GetMockFormCollection(formFiles));
var bindingContext = GetBindingContext(typeof(IFormFile), httpContext);
var binder = new FormFileModelBinder(NullLoggerFactory.Instance);
// Act
await binder.BindModelAsync(bindingContext);
// Assert
Assert.True(bindingContext.Result.IsModelSet);
var file = Assert.IsAssignableFrom <IFormFile>(bindingContext.Result.Model);
Assert.Equal("file1.txt", file.FileName);
}
public async Task FormFileModelBinder_SingleFileWithinTopLevelPoco_BindSuccessfully_WithShortenedModelName()
{
// Arrange
const string propertyName = nameof(NestedFormFiles.Files);
var formFiles = new FormFileCollection
{
GetMockFormFile($"FileList.{propertyName}", "file1.txt")
};
var httpContext = GetMockHttpContext(GetMockFormCollection(formFiles));
var binder = new FormFileModelBinder(NullLoggerFactory.Instance);
// Mimic ParameterBinder overwriting ModelName on top level model then ComplexTypeModelBinder entering a
// nested context for the NestedFormFiles property. In this non-top-level binding case, FormFileModelBinder
// tries ModelName then falls back to add an (OriginalModelName + ".") prefix.
var propertyInfo = typeof(NestedFormFiles).GetProperty(propertyName);
var metadata = new EmptyModelMetadataProvider().GetMetadataForProperty(
propertyInfo,
propertyInfo.PropertyType);
var bindingContext = DefaultModelBindingContext.CreateBindingContext(
new ActionContext {
HttpContext = httpContext
},
Mock.Of <IValueProvider>(),
metadata,
bindingInfo: null,
modelName: "FileList");
bindingContext.IsTopLevelObject = false;
bindingContext.Model = new FileList();
bindingContext.ModelName = propertyName;
// Act
await binder.BindModelAsync(bindingContext);
// Assert
Assert.True(bindingContext.Result.IsModelSet);
var entry = bindingContext.ValidationState[bindingContext.Result.Model];
Assert.False(entry.SuppressValidation);
Assert.Equal($"FileList.{propertyName}", entry.Key);
Assert.Null(entry.Metadata);
}
public async Task FormFileModelBinder_SingleFileWithinTopLevelPoco_BindSuccessfully()
{
// Arrange
const string propertyName = nameof(NestedFormFiles.Files);
var formFiles = new FormFileCollection
{
GetMockFormFile($"{propertyName}", "file1.txt")
};
var httpContext = GetMockHttpContext(GetMockFormCollection(formFiles));
var binder = new FormFileModelBinder(NullLoggerFactory.Instance);
// In this non-top-level binding case, FormFileModelBinder tries ModelName and succeeds.
var propertyInfo = typeof(NestedFormFiles).GetProperty(propertyName);
var metadata = new EmptyModelMetadataProvider().GetMetadataForProperty(
propertyInfo,
propertyInfo.PropertyType);
var bindingContext = DefaultModelBindingContext.CreateBindingContext(
new ActionContext {
HttpContext = httpContext
},
Mock.Of <IValueProvider>(),
metadata,
bindingInfo: null,
modelName: "FileList");
bindingContext.IsTopLevelObject = false;
bindingContext.Model = new FileList();
bindingContext.ModelName = propertyName;
// Act
await binder.BindModelAsync(bindingContext);
// Assert
Assert.True(bindingContext.Result.IsModelSet);
var entry = bindingContext.ValidationState[bindingContext.Result.Model];
Assert.False(entry.SuppressValidation);
Assert.Equal($"{propertyName}", entry.Key);
Assert.Null(entry.Metadata);
}
public async Task FormFileModelBinder_SingleFile_BindSuccessful()
{
// Arrange
var formFiles = new FormFileCollection();
formFiles.Add(GetMockFormFile("file", "file1.txt"));
var httpContext = GetMockHttpContext(GetMockFormCollection(formFiles));
var bindingContext = GetBindingContext(typeof(IEnumerable <IFormFile>), httpContext);
var binder = new FormFileModelBinder();
// Act
await binder.BindModelAsync(bindingContext);
// Assert
Assert.True(bindingContext.Result.IsModelSet);
var entry = bindingContext.ValidationState[bindingContext.Result.Model];
Assert.False(entry.SuppressValidation);
Assert.Equal("file", entry.Key);
Assert.Null(entry.Metadata);
}
public async Task FormFileModelBinder_SingleFileWithinTopLevelDictionary_BindSuccessfully_WithShortenedModelName()
{
// Arrange
var formFiles = new FormFileCollection
{
GetMockFormFile("FileDictionary[myFile]", "file1.txt")
};
var httpContext = GetMockHttpContext(GetMockFormCollection(formFiles));
var binder = new FormFileModelBinder(NullLoggerFactory.Instance);
// Mimic ParameterBinder overwriting ModelName on top level model then DictionaryModelBinder entering a
// nested context for the KeyValuePair.Value property. In this non-top-level binding case,
// FormFileModelBinder tries ModelName then falls back to add an OriginalModelName prefix.
var bindingContext = DefaultModelBindingContext.CreateBindingContext(
new ActionContext {
HttpContext = httpContext
},
Mock.Of <IValueProvider>(),
new EmptyModelMetadataProvider().GetMetadataForType(typeof(IFormFile)),
bindingInfo: null,
modelName: "FileDictionary");
bindingContext.IsTopLevelObject = false;
bindingContext.ModelName = "[myFile]";
// Act
await binder.BindModelAsync(bindingContext);
// Assert
Assert.True(bindingContext.Result.IsModelSet);
var entry = bindingContext.ValidationState[bindingContext.Result.Model];
Assert.False(entry.SuppressValidation);
Assert.Equal("FileDictionary[myFile]", entry.Key);
Assert.Null(entry.Metadata);
}
public async Task FormFileModelBinder_SingleFileAtTopLevel_BindSuccessfully_WithEmptyModelName()
{
// Arrange
var formFiles = new FormFileCollection
{
GetMockFormFile("file", "file1.txt")
};
var httpContext = GetMockHttpContext(GetMockFormCollection(formFiles));
var binder = new FormFileModelBinder(NullLoggerFactory.Instance);
// Mimic ParameterBinder overwriting ModelName on top level model. In this top-level binding case,
// FormFileModelBinder uses FieldName from the get-go. (OriginalModelName will be checked but ignored.)
var bindingContext = DefaultModelBindingContext.CreateBindingContext(
new ActionContext {
HttpContext = httpContext
},
Mock.Of <IValueProvider>(),
new EmptyModelMetadataProvider().GetMetadataForType(typeof(IFormFile)),
bindingInfo: null,
modelName: "file");
bindingContext.ModelName = string.Empty;
// Act
await binder.BindModelAsync(bindingContext);
// Assert
Assert.True(bindingContext.Result.IsModelSet);
var entry = bindingContext.ValidationState[bindingContext.Result.Model];
Assert.False(entry.SuppressValidation);
Assert.Equal("file", entry.Key);
Assert.Null(entry.Metadata);
}
public async Task FormFileModelBinder_SingleFileWithinTopLevelDictionary_BindSuccessfully()
{
// Arrange
var formFiles = new FormFileCollection
{
GetMockFormFile("[myFile]", "file1.txt")
};
var httpContext = GetMockHttpContext(GetMockFormCollection(formFiles));
var binder = new FormFileModelBinder(NullLoggerFactory.Instance);
// In this non-top-level binding case, FormFileModelBinder tries ModelName and succeeds.
var bindingContext = DefaultModelBindingContext.CreateBindingContext(
new ActionContext {
HttpContext = httpContext
},
Mock.Of <IValueProvider>(),
new EmptyModelMetadataProvider().GetMetadataForType(typeof(IFormFile)),
bindingInfo: null,
modelName: "FileDictionary");
bindingContext.IsTopLevelObject = false;
bindingContext.ModelName = "[myFile]";
// Act
await binder.BindModelAsync(bindingContext);
// Assert
Assert.True(bindingContext.Result.IsModelSet);
var entry = bindingContext.ValidationState[bindingContext.Result.Model];
Assert.False(entry.SuppressValidation);
Assert.Equal("[myFile]", entry.Key);
Assert.Null(entry.Metadata);
}
