Moved to google.golang.org/genproto/googleapis/api/annotations

Fixes #52

vendor/github.com/go-kit/kit/log/concurrency_test.go

@@ -0,0 +1,40 @@
+package log_test
+
+import (
+	"math"
+	"testing"
+
+	"github.com/go-kit/kit/log"
+)
+
+// These test are designed to be run with the race detector.
+
+func testConcurrency(t *testing.T, logger log.Logger, total int) {
+	n := int(math.Sqrt(float64(total)))
+	share := total / n
+
+	errC := make(chan error, n)
+
+	for i := 0; i < n; i++ {
+		go func() {
+			errC <- spam(logger, share)
+		}()
+	}
+
+	for i := 0; i < n; i++ {
+		err := <-errC
+		if err != nil {
+			t.Fatalf("concurrent logging error: %v", err)
+		}
+	}
+}
+
+func spam(logger log.Logger, count int) error {
+	for i := 0; i < count; i++ {
+		err := logger.Log("key", i)
+		if err != nil {
+			return err
+		}
+	}
+	return nil
+}