public void CanRead_ReturnsTrueOnlyForJsonPatchContentType(string requestContentType, bool expectedCanRead)
{
// Arrange
var logger = GetLogger();
var formatter =
new JsonPatchInputFormatter(logger, _serializerSettings, ArrayPool <char> .Shared, _objectPoolProvider);
var content = "[{\"op\": \"add\", \"path\" : \"Customer/Name\", \"value\":\"John\"}]";
var contentBytes = Encoding.UTF8.GetBytes(content);
var modelState = new ModelStateDictionary();
var httpContext = GetHttpContext(contentBytes, contentType: requestContentType);
var provider = new EmptyModelMetadataProvider();
var metadata = provider.GetMetadataForType(typeof(JsonPatchDocument <Customer>));
var formatterContext = new InputFormatterContext(
httpContext,
modelName: string.Empty,
modelState: modelState,
metadata: metadata,
readerFactory: new TestHttpRequestStreamReaderFactory().CreateReader);
// Act
var result = formatter.CanRead(formatterContext);
// Assert
Assert.Equal(expectedCanRead, result);
}
public async Task JsonPatchInputFormatter_ReturnsModelStateErrors_InvalidModelType()
{
// Arrange
var exceptionMessage = "Cannot deserialize the current JSON array (e.g. [1,2,3]) into type " +
$"'{typeof(Customer).FullName}' because the type requires a JSON object ";
var logger = GetLogger();
var formatter =
new JsonPatchInputFormatter(logger, _serializerSettings, ArrayPool <char> .Shared, _objectPoolProvider);
var content = "[{\"op\": \"add\", \"path\" : \"Customer/Name\", \"value\":\"John\"}]";
var contentBytes = Encoding.UTF8.GetBytes(content);
var modelState = new ModelStateDictionary();
var httpContext = GetHttpContext(contentBytes, contentType: "application/json-patch+json");
var provider = new EmptyModelMetadataProvider();
var metadata = provider.GetMetadataForType(typeof(Customer));
var context = new InputFormatterContext(
httpContext,
modelName: string.Empty,
modelState: modelState,
metadata: metadata,
readerFactory: new TestHttpRequestStreamReaderFactory().CreateReader);
// Act
var result = await formatter.ReadAsync(context);
// Assert
Assert.True(result.HasError);
Assert.Contains(exceptionMessage, modelState[""].Errors[0].Exception.Message);
}
public async Task JsonPatchInputFormatter_ReadsMultipleOperations_Successfully()
{
// Arrange
var logger = GetLogger();
var formatter =
new JsonPatchInputFormatter(logger, _serializerSettings, ArrayPool <char> .Shared, _objectPoolProvider);
var content = "[{\"op\": \"add\", \"path\" : \"Customer/Name\", \"value\":\"John\"}," +
"{\"op\": \"remove\", \"path\" : \"Customer/Name\"}]";
var contentBytes = Encoding.UTF8.GetBytes(content);
var modelState = new ModelStateDictionary();
var httpContext = GetHttpContext(contentBytes);
var provider = new EmptyModelMetadataProvider();
var metadata = provider.GetMetadataForType(typeof(JsonPatchDocument <Customer>));
var context = new InputFormatterContext(
httpContext,
modelName: string.Empty,
modelState: modelState,
metadata: metadata,
readerFactory: new TestHttpRequestStreamReaderFactory().CreateReader);
// Act
var result = await formatter.ReadAsync(context);
// Assert
Assert.False(result.HasError);
var patchDoc = Assert.IsType <JsonPatchDocument <Customer> >(result.Model);
Assert.Equal("add", patchDoc.Operations[0].op);
Assert.Equal("Customer/Name", patchDoc.Operations[0].path);
Assert.Equal("John", patchDoc.Operations[0].value);
Assert.Equal("remove", patchDoc.Operations[1].op);
Assert.Equal("Customer/Name", patchDoc.Operations[1].path);
}
public void CanRead_ReturnsFalse_NonJsonPatchContentType(Type modelType)
{
// Arrange
var logger = GetLogger();
var formatter =
new JsonPatchInputFormatter(logger, _serializerSettings, ArrayPool <char> .Shared, _objectPoolProvider);
var content = "[{\"op\": \"add\", \"path\" : \"Customer/Name\", \"value\":\"John\"}]";
var contentBytes = Encoding.UTF8.GetBytes(content);
var modelState = new ModelStateDictionary();
var httpContext = GetHttpContext(contentBytes, contentType: "application/json-patch+json");
var provider = new EmptyModelMetadataProvider();
var metadata = provider.GetMetadataForType(modelType);
var formatterContext = new InputFormatterContext(
httpContext,
modelName: string.Empty,
modelState: modelState,
metadata: metadata,
readerFactory: new TestHttpRequestStreamReaderFactory().CreateReader);
// Act
var result = formatter.CanRead(formatterContext);
// Assert
Assert.False(result);
}
public async Task SuppressInputFormatterBufferingSetToTrue_UsingMutatedOptions_DoesNotBufferRequestBody()
{
// Arrange
var logger = GetLogger();
var mvcOptions = new MvcOptions();
mvcOptions.SuppressInputFormatterBuffering = false;
var formatter = new JsonPatchInputFormatter(
logger,
_serializerSettings,
ArrayPool <char> .Shared,
_objectPoolProvider,
mvcOptions);
var content = "[{\"op\":\"add\",\"path\":\"Customer/Name\",\"value\":\"John\"}]";
var contentBytes = Encoding.UTF8.GetBytes(content);
var modelState = new ModelStateDictionary();
var httpContext = new DefaultHttpContext();
httpContext.Features.Set <IHttpResponseFeature>(new TestResponseFeature());
httpContext.Request.Body = new NonSeekableReadStream(contentBytes);
httpContext.Request.ContentType = "application/json";
var provider = new EmptyModelMetadataProvider();
var metadata = provider.GetMetadataForType(typeof(JsonPatchDocument <Customer>));
var context = new InputFormatterContext(
httpContext,
modelName: string.Empty,
modelState: modelState,
metadata: metadata,
readerFactory: new TestHttpRequestStreamReaderFactory().CreateReader);
// Act
// Mutate options after passing into the constructor to make sure that the value type is not store in the constructor
mvcOptions.SuppressInputFormatterBuffering = true;
var result = await formatter.ReadAsync(context);
// Assert
Assert.False(result.HasError);
var patchDoc = Assert.IsType <JsonPatchDocument <Customer> >(result.Model);
Assert.Equal("add", patchDoc.Operations[0].op);
Assert.Equal("Customer/Name", patchDoc.Operations[0].path);
Assert.Equal("John", patchDoc.Operations[0].value);
Assert.False(httpContext.Request.Body.CanSeek);
result = await formatter.ReadAsync(context);
// Assert
Assert.False(result.HasError);
Assert.Null(result.Model);
}
public async Task BuffersRequestBody_ByDefault()
{
// Arrange
var logger = GetLogger();
#pragma warning disable CS0618
var formatter =
new JsonPatchInputFormatter(logger, _serializerSettings, ArrayPool <char> .Shared, _objectPoolProvider);
#pragma warning restore CS0618
var content = "[{\"op\":\"add\",\"path\":\"Customer/Name\",\"value\":\"John\"}]";
var contentBytes = Encoding.UTF8.GetBytes(content);
var modelState = new ModelStateDictionary();
var httpContext = new DefaultHttpContext();
httpContext.Features.Set <IHttpResponseFeature>(new TestResponseFeature());
httpContext.Request.Body = new NonSeekableReadStream(contentBytes);
httpContext.Request.ContentType = "application/json";
var provider = new EmptyModelMetadataProvider();
var metadata = provider.GetMetadataForType(typeof(JsonPatchDocument <Customer>));
var context = new InputFormatterContext(
httpContext,
modelName: string.Empty,
modelState: modelState,
metadata: metadata,
readerFactory: new TestHttpRequestStreamReaderFactory().CreateReader);
// Act
var result = await formatter.ReadAsync(context);
// Assert
Assert.False(result.HasError);
var patchDoc = Assert.IsType <JsonPatchDocument <Customer> >(result.Model);
Assert.Equal("add", patchDoc.Operations[0].op);
Assert.Equal("Customer/Name", patchDoc.Operations[0].path);
Assert.Equal("John", patchDoc.Operations[0].value);
Assert.True(httpContext.Request.Body.CanSeek);
httpContext.Request.Body.Seek(0L, SeekOrigin.Begin);
result = await formatter.ReadAsync(context);
// Assert
Assert.False(result.HasError);
patchDoc = Assert.IsType <JsonPatchDocument <Customer> >(result.Model);
Assert.Equal("add", patchDoc.Operations[0].op);
Assert.Equal("Customer/Name", patchDoc.Operations[0].path);
Assert.Equal("John", patchDoc.Operations[0].value);
}
public async Task Version_2_1_Constructor_SuppressInputFormatterBuffering_DoesNotBufferRequestBody()
{
// Arrange
var mvcOptions = new MvcOptions()
{
SuppressInputFormatterBuffering = false,
};
var formatter = new JsonPatchInputFormatter(
GetLogger(),
_serializerSettings,
ArrayPool <char> .Shared,
_objectPoolProvider,
mvcOptions,
new MvcJsonOptions());
var content = "[{\"op\":\"add\",\"path\":\"Customer/Name\",\"value\":\"John\"}]";
var contentBytes = Encoding.UTF8.GetBytes(content);
var httpContext = new DefaultHttpContext();
httpContext.Features.Set <IHttpResponseFeature>(new TestResponseFeature());
httpContext.Request.Body = new NonSeekableReadStream(contentBytes);
httpContext.Request.ContentType = "application/json";
var formatterContext = CreateInputFormatterContext(typeof(JsonPatchDocument <Customer>), httpContext);
// Act
// Mutate options after passing into the constructor to make sure that the value type is not store in the constructor
mvcOptions.SuppressInputFormatterBuffering = true;
var result = await formatter.ReadAsync(formatterContext);
// Assert
Assert.False(result.HasError);
var patchDocument = Assert.IsType <JsonPatchDocument <Customer> >(result.Model);
Assert.Equal("add", patchDocument.Operations[0].op);
Assert.Equal("Customer/Name", patchDocument.Operations[0].path);
Assert.Equal("John", patchDocument.Operations[0].value);
Assert.False(httpContext.Request.Body.CanSeek);
result = await formatter.ReadAsync(formatterContext);
// Assert
Assert.False(result.HasError);
Assert.Null(result.Model);
}
public async Task Version_2_1_Constructor_BuffersRequestBody_ByDefault()
{
// Arrange
var formatter = new JsonPatchInputFormatter(
GetLogger(),
_serializerSettings,
ArrayPool <char> .Shared,
_objectPoolProvider,
new MvcOptions(),
new MvcJsonOptions());
var content = "[{\"op\":\"add\",\"path\":\"Customer/Name\",\"value\":\"John\"}]";
var contentBytes = Encoding.UTF8.GetBytes(content);
var httpContext = new DefaultHttpContext();
httpContext.Features.Set <IHttpResponseFeature>(new TestResponseFeature());
httpContext.Request.Body = new NonSeekableReadStream(contentBytes);
httpContext.Request.ContentType = "application/json";
var formatterContext = CreateInputFormatterContext(typeof(JsonPatchDocument <Customer>), httpContext);
// Act
var result = await formatter.ReadAsync(formatterContext);
// Assert
Assert.False(result.HasError);
var patchDocument = Assert.IsType <JsonPatchDocument <Customer> >(result.Model);
Assert.Equal("add", patchDocument.Operations[0].op);
Assert.Equal("Customer/Name", patchDocument.Operations[0].path);
Assert.Equal("John", patchDocument.Operations[0].value);
Assert.True(httpContext.Request.Body.CanSeek);
httpContext.Request.Body.Seek(0L, SeekOrigin.Begin);
result = await formatter.ReadAsync(formatterContext);
// Assert
Assert.False(result.HasError);
patchDocument = Assert.IsType <JsonPatchDocument <Customer> >(result.Model);
Assert.Equal("add", patchDocument.Operations[0].op);
Assert.Equal("Customer/Name", patchDocument.Operations[0].path);
Assert.Equal("John", patchDocument.Operations[0].value);
}