public void ContextObjectsExtension_ContextObjectsAddedToMarkdownParserContextPropertiesTakePrecedenceOver()
{
// Arrange
var dummyValue = new object();
Mock <Verifier> mockVerifier = _mockRepository.Create <Verifier>();
mockVerifier.Setup(v => v.Verify(dummyValue)); // Verifies that correct value is returned by ContextObjectsService in DummyParser.TryOpen
var dummyServices = new ServiceCollection();
dummyServices.
AddContextObjects().
AddSingleton <DummyExtension>().
AddSingleton <DummyParser>().
AddSingleton(mockVerifier.Object);
ServiceProvider serviceProvider = dummyServices.BuildServiceProvider();
ContextObjectsExtension testSubject = serviceProvider.GetRequiredService <ContextObjectsExtension>();
testSubject.ContextObjectsStore.Add(_dummyKey, new object()); // Add context object to ContextObjectsStore
var markdownPipelineBuilder = new MarkdownPipelineBuilder();
markdownPipelineBuilder.Extensions.Add(testSubject);
markdownPipelineBuilder.Extensions.Add(serviceProvider.GetRequiredService <DummyExtension>());
MarkdownPipeline markdownPipeline = markdownPipelineBuilder.Build();
var markdownParserContext = new MarkdownParserContext();
markdownParserContext.Properties.Add(_dummyKey, dummyValue); // Add context object to MarkdownParserContext, this object should take precedence
var dummyStringWriter = new StringWriter();
// Act
Markdown.ToHtml("dummyMarkdown", dummyStringWriter, markdownPipeline, markdownParserContext);
// Assert
_mockRepository.VerifyAll();
}
private static void AddContextObjectWithTypeAsKey <T>(MarkdownPipelineBuilder pipelineBuilder, T contextObject)
{
ContextObjectsExtension contextObjectsExtension = pipelineBuilder.Extensions.Find <ContextObjectsExtension>();
if (contextObjectsExtension == null)
{
contextObjectsExtension = GetOrCreateServiceProvider().GetRequiredService <ContextObjectsExtension>();
pipelineBuilder.Extensions.Add(contextObjectsExtension);
}
contextObjectsExtension.ContextObjectsStore.Add(typeof(T), contextObject);
}
public void Setup_InsertsContextObjectsStoreIntoBlockParsersIfItDoesNotContainAContextObjectsStore()
{
// Arrange
var dummyContextObjectsStore = new ContextObjectsStore();
ContextObjectsExtension testSubject = CreateContextObjectsExtension(dummyContextObjectsStore);
var dummyMarkdownPipelineBuilder = new MarkdownPipelineBuilder();
// Act
testSubject.Setup(dummyMarkdownPipelineBuilder);
// Assert
Assert.Contains(dummyContextObjectsStore, dummyMarkdownPipelineBuilder.BlockParsers);
}
public void Setup_DoesNothingIfBlockParsersContainsAContextObjectsStore()
{
// Arrange
var dummyContextObjectsStore = new ContextObjectsStore();
ContextObjectsExtension testSubject = CreateContextObjectsExtension(dummyContextObjectsStore);
var dummyMarkdownPipelineBuilder = new MarkdownPipelineBuilder();
dummyMarkdownPipelineBuilder.BlockParsers.Add(new ContextObjectsStore());
// Act
testSubject.Setup(dummyMarkdownPipelineBuilder);
// Assert
// Can't use Assert.DoesNotContain here:
// Because ContextObjectsStore implements IDictionary<object, object>, Xunit compares the ContextObjectsStore instances as dictionaries:
// - https://github.com/xunit/assert.xunit/blob/92395f59e3ff47d6d5a1edeced9e99ccfef9fd37/Sdk/AssertEqualityComparer.cs#L84
// They're found to be "equal" because they have the same contents. What we want to check is whether the same reference exists in the collection.
Assert.NotSame(dummyContextObjectsStore, dummyMarkdownPipelineBuilder.BlockParsers.Find <ContextObjectsStore>());
}
