public async Task AddsCorrelationIdToRequestWhenAvailable()
{
// Arrange
var correlatingHttpClientHandler = new CorrelatingHttpClientHandler();
correlatingHttpClientHandler.InnerHandler = new HttpClientHandler();
var inspectingHandler = new RequestInspectingHandler();
inspectingHandler.InnerHandler = correlatingHttpClientHandler;
var correlationId = Guid.NewGuid();
CallContext.LogicalSetData(WebApiCorrelationHandler.CallContextKey, correlationId);
// Act
using (var client = new HttpClient(inspectingHandler))
{
await client.GetAsync("https://www.nuget.org");
}
// Assert
var request = inspectingHandler.Requests.FirstOrDefault();
Assert.NotNull(request);
Assert.True(request.Headers.Contains(WebApiCorrelationHandler.CorrelationIdHttpHeaderName));
Assert.Equal(correlationId.ToString(), request.Headers.GetValues(WebApiCorrelationHandler.CorrelationIdHttpHeaderName).FirstOrDefault());
}
public async Task DoesNotAddCorrelationIdToRequestWhenNotAvailable()
{
// Arrange
var correlatingHttpClientHandler = new CorrelatingHttpClientHandler();
var testHandler = new TestHandler();
correlatingHttpClientHandler.InnerHandler = testHandler;
// Act
using (var client = new HttpClient(correlatingHttpClientHandler))
{
await client.GetAsync("https://example");
}
// Assert
var request = testHandler.Requests.FirstOrDefault();
Assert.NotNull(request);
Assert.False(request.Headers.Contains(WebApiCorrelationHandler.CorrelationIdHttpHeaderName));
}
