Add basic span and context tests.

Author: ioquatix

lib/traces/backend/open_telemetry/interface.rb

@@ -50,12 +50,16 @@ def trace_context=(context)
 
 				def trace_context(span = ::OpenTelemetry::Trace.current_span)
 					if span_context = span.context
-						state = baggage.values(context: span.context)
+						flags = 0
+						
+						if span_context.trace_flags.sampled?
+							flags |= Context::SAMPLED
+						end
 
 						return Context.new(
 							span_context.trace_id,
 							span_context.span_id,
-							span_context.trace_flags,
+							flags,
 							span_context.tracestate,
 							remote: span_context.remote?
 						)

test/traces/backend/open_telemetry.rb

@@ -22,9 +22,23 @@ def my_method_without_attributes(arguments)
 	def my_method_with_exception
 		Traces.trace("my_method_with_exception") {raise "Error"}
 	end
+	
+	def my_span
+		Traces.trace('my_span') {|span| return span}
+	end
+	
+	def my_context
+		Traces.trace('my_context') {|span| return Traces.trace_context}
+	end
+
+	def my_span_and_context
+		Traces.trace('my_span_and_context') {|span| return span, Traces.trace_context}
+	end
 end
 
 describe Traces::Backend::OpenTelemetry do
+	let(:instance) {MyClass.new}
+	
 	it "has a version number" do
 		expect(Traces::Backend::OpenTelemetry::VERSION).not.to be == nil
 	end
@@ -56,4 +70,30 @@ def my_method_with_exception
 			instance.my_method_with_exception
 		end.to raise_exception(RuntimeError, message: be == "Error")
 	end
+	
+	describe OpenTelemetry::Trace::Span do
+		let(:span) {instance.my_span}
+		
+		it "can assign name" do
+			span.name = "new_name"
+		end
+		
+		it "can assign attributes" do
+			span["my_key"] = "tag_value"
+		end
+	end
+	
+	describe OpenTelemetry::Trace::SpanContext do
+		let(:span_and_context) {instance.my_span_and_context}
+		let(:span) {span_and_context.first}
+		let(:context) {span_and_context.last}
+
+		with '#trace_context' do
+			it "has a valid trace id" do
+				expect(context).to have_attributes(
+					trace_id: be != nil
+				)
+			end
+		end
+	end
 end