1 files changed, 43 insertions, 0 deletions
diff --git a/test/tracer_test.cpp b/test/tracer_test.cpp
new file mode 100644
index 0000000..eca3a36
--- /dev/null
+++ b/test/tracer_test.cpp
@@ -0,0 +1,43 @@
+#include <opentracing/ext/tags.h>
+#include <opentracing/noop.h>
+#include <opentracing/tracer.h>
+using namespace opentracing;
+
+#define CATCH_CONFIG_MAIN
+#include <opentracing/catch2/catch.hpp>
+
+TEST_CASE("tracer") {
+  auto tracer = MakeNoopTracer();
+
+  auto span1 = tracer->StartSpan("a");
+  CHECK(span1);
+
+  SECTION("Spans provide references to the tracer that created them.") {
+    CHECK(&span1->tracer() == tracer.get());
+  }
+
+  SECTION("Ensure basic operations compile.") {
+    auto span2 = tracer->StartSpan("b", {ChildOf(&span1->context())});
+    CHECK(span2);
+    span2->SetOperationName("b1");
+    span2->SetTag("x", true);
+    span2->SetTag(opentracing::ext::span_kind,
+                  opentracing::ext::span_kind_rpc_client);
+    CHECK(span2->BaggageItem("y").empty());
+    span2->Log({{"event", "xyz"}, {"abc", 123}});
+    span2->Finish();
+  }
+
+  SECTION("A reference to a null SpanContext is ignored.") {
+    StartSpanOptions options;
+    ChildOf(nullptr).Apply(options);
+    CHECK(options.references.size() == 0);
+  }
+}
+
+TEST_CASE("A tracer can be globally registered") {
+  CHECK(!Tracer::IsGlobalTracerRegistered());
+  auto tracer = MakeNoopTracer();
+  CHECK(Tracer::InitGlobal(tracer) != nullptr);
+  CHECK(Tracer::IsGlobalTracerRegistered());
+}