initial import

core/trace/noop_test.go

@@ -0,0 +1,32 @@
+package trace
+
+import (
+	"context"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestNoopSpan_Fork(t *testing.T) {
+	ctx, span := emptyNoopSpan.Fork(context.Background(), "", "")
+	assert.Equal(t, emptyNoopSpan, span)
+	assert.Equal(t, context.Background(), ctx)
+}
+
+func TestNoopSpan_Follow(t *testing.T) {
+	ctx, span := emptyNoopSpan.Follow(context.Background(), "", "")
+	assert.Equal(t, emptyNoopSpan, span)
+	assert.Equal(t, context.Background(), ctx)
+}
+
+func TestNoopSpan(t *testing.T) {
+	emptyNoopSpan.Visit(func(key, val string) bool {
+		assert.Fail(t, "should not go here")
+		return true
+	})
+
+	ctx, span := emptyNoopSpan.Follow(context.Background(), "", "")
+	assert.Equal(t, context.Background(), ctx)
+	assert.Equal(t, "", span.TraceId())
+	assert.Equal(t, "", span.SpanId())
+}