testing: add test for issue 5599

Update #5599

R=golang-dev, r, minux.ma
CC=golang-dev
https://golang.org/cl/9738052

diff --git a/src/pkg/testing/benchmark_test.go b/src/pkg/testing/benchmark_test.go
new file mode 100644 (file)
index 0000000..5ed4e03
--- /dev/null
+++ b/src/pkg/testing/benchmark_test.go
@@ -0,0 +1,31 @@
+// Copyright 2013 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package testing_test
+
+import (
+       "testing"
+)
+
+var roundDownTests = []struct {
+       v, expected int
+}{
+       {1, 1},
+       {9, 1},
+       {10, 1},
+       {11, 10},
+       {100, 10},
+       //      {101, 100}, // issue 5599
+       {1000, 100},
+       //      {1001, 1000}, // issue 5599
+}
+
+func TestRoundDown10(t *testing.T) {
+       for _, tt := range roundDownTests {
+               actual := testing.RoundDown10(tt.v)
+               if tt.expected != actual {
+                       t.Errorf("roundDown10: expected %v, actual %v", tt.expected, actual)
+               }
+       }
+}

diff --git a/src/pkg/testing/export_test.go b/src/pkg/testing/export_test.go
new file mode 100644 (file)
index 0000000..3084efd
--- /dev/null
+++ b/src/pkg/testing/export_test.go
@@ -0,0 +1,7 @@
+// Copyright 2013 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package testing
+
+var RoundDown10 = roundDown10