public void Export_Span_Format()
{
var span = new SpanBuilder("test-span", new SimpleSpanProcessor(new NoopSpanExporter()),
TraceConfig.Default).StartSpan();
span.PutHttpHostAttribute("http://example.com", 80);
span.PutHttpMethodAttribute("POST");
span.PutHttpPathAttribute("path");
span.PutHttpRawUrlAttribute("https://example.com?q=*");
span.PutHttpRequestSizeAttribute(long.MinValue);
span.PutHttpResponseSizeAttribute(long.MaxValue);
span.PutHttpRouteAttribute("route");
span.PutHttpStatusCode((int)HttpStatusCode.Accepted, "Accepted");
span.PutHttpUserAgentAttribute("google");
var convertedSpan = SpanExtensions.ToSpan(span as Span, "test-project");
Assert.NotNull(convertedSpan);
Assert.True(convertedSpan.Attributes.AttributeMap.ContainsKey("/http/host"));
Assert.True(convertedSpan.Attributes.AttributeMap.ContainsKey("/http/method"));
Assert.True(convertedSpan.Attributes.AttributeMap.ContainsKey("/http/status_code"));
Assert.True(convertedSpan.Attributes.AttributeMap.ContainsKey("/http/route"));
Assert.True(convertedSpan.Attributes.AttributeMap.ContainsKey("/http/user_agent"));
Assert.True(convertedSpan.Attributes.AttributeMap.ContainsKey("/http/request_size"));
Assert.True(convertedSpan.Attributes.AttributeMap.ContainsKey("/http/response_size"));
Assert.True(convertedSpan.Attributes.AttributeMap.ContainsKey("/http/url"));
Assert.True(convertedSpan.Attributes.AttributeMap.ContainsKey("/http/path"));
}