sdk-csharp/test/CloudNative.CloudEvents.Uni.../Core/MimeUtilitiesTest.cs

108 lines
4.5 KiB
C#

// Copyright 2021 Cloud Native Foundation.
// Licensed under the Apache 2.0 license.
// See LICENSE file in the project root for full license information.
using System.Linq;
using System.Net.Http.Headers;
using System.Net.Mime;
using System.Text;
using Xunit;
namespace CloudNative.CloudEvents.Core.UnitTests
{
public class MimeUtilitiesTest
{
[Theory]
[InlineData("application/json")]
[InlineData("application/json; charset=iso-8859-1")]
[InlineData("application/json; charset=iso-8859-1; name=some-name")]
[InlineData("application/json; charset=iso-8859-1; name=some-name; x=y; a=b")]
[InlineData("application/json; charset=iso-8859-1; name=some-name; boundary=xyzzy; x=y")]
public void ContentTypeConversions(string text)
{
var originalContentType = new ContentType(text);
var header = MimeUtilities.ToMediaTypeHeaderValue(originalContentType);
AssertEqualParts(text, header!.ToString());
var convertedContentType = MimeUtilities.ToContentType(header);
AssertEqualParts(originalContentType.ToString(), convertedContentType!.ToString());
// Conversions can end up reordering the parameters. In reality we're only
// likely to end up with a media type and charset, but our tests use more parameters.
// This just makes them deterministic.
void AssertEqualParts(string expected, string actual)
{
expected = string.Join(";", expected.Split(";").OrderBy(x => x));
actual = string.Join(";", actual.Split(";").OrderBy(x => x));
Assert.Equal(expected, actual);
}
}
[Fact]
public void ContentTypeConversions_Null()
{
Assert.Null(MimeUtilities.ToMediaTypeHeaderValue(default(ContentType)));
Assert.Null(MimeUtilities.ToContentType(default(MediaTypeHeaderValue)));
}
[Theory]
[InlineData("iso-8859-1")]
[InlineData("utf-8")]
public void ContentTypeGetEncoding(string charSet)
{
var contentType = new ContentType($"text/plain; charset={charSet}");
Encoding encoding = MimeUtilities.GetEncoding(contentType);
Assert.Equal(charSet, encoding.WebName);
}
[Fact]
public void ContentTypeGetEncoding_NoContentType()
{
ContentType? contentType = null;
Encoding encoding = MimeUtilities.GetEncoding(contentType);
Assert.Equal(Encoding.UTF8, encoding);
}
[Fact]
public void ContentTypeGetEncoding_NoCharSet()
{
ContentType contentType = new ContentType("text/plain");
Encoding encoding = MimeUtilities.GetEncoding(contentType);
Assert.Equal(Encoding.UTF8, encoding);
}
[Theory]
[InlineData(null)]
[InlineData("text/plain")]
public void CreateContentTypeOrNull_WithContentType(string? text)
{
ContentType? ct = MimeUtilities.CreateContentTypeOrNull(text);
Assert.Equal(text, ct?.ToString());
}
[Theory]
[InlineData("text/plain", false)]
[InlineData(null, false)]
[InlineData("application/cloudevents", true)]
[InlineData("application/cloudevents+json", true)]
// It's not entirely clear that this *should* be true...
[InlineData("application/cloudeventstrailing", true)]
[InlineData("application/cloudevents-batch", false)]
[InlineData("application/cloudevents-batch+json", false)]
public void IsCloudEventsContentType(string? contentType, bool expectedResult) =>
Assert.Equal(expectedResult, MimeUtilities.IsCloudEventsContentType(contentType));
[Theory]
[InlineData("text/plain", false)]
[InlineData(null, false)]
[InlineData("application/cloudevents", false)]
[InlineData("application/cloudevents+json", false)]
[InlineData("application/cloudeventstrailing", false)]
[InlineData("application/cloudevents-batch", true)]
// It's not entirely clear that this *should* be true...
[InlineData("application/cloudevents-batchtrailing", true)]
[InlineData("application/cloudevents-batch+json", true)]
public void IsCloudEventsBatchContentType(string? contentType, bool expectedResult) =>
Assert.Equal(expectedResult, MimeUtilities.IsCloudEventsBatchContentType(contentType));
}
}