1 files changed, 29 insertions, 0 deletions
diff --git a/src/runtime/testdata/testfds/main.go b/src/runtime/testdata/testfds/main.go
new file mode 100644
index 0000000..238ba46
--- /dev/null
+++ b/src/runtime/testdata/testfds/main.go
@@ -0,0 +1,29 @@
+// Copyright 2023 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 main
+
+import (
+	"fmt"
+	"io"
+	"log"
+	"os"
+)
+
+func main() {
+	f, err := os.OpenFile(os.Getenv("TEST_OUTPUT"), os.O_CREATE|os.O_RDWR, 0600)
+	if err != nil {
+		log.Fatalf("os.Open failed: %s", err)
+	}
+	defer f.Close()
+	b, err := io.ReadAll(os.Stdin)
+	if err != nil {
+		log.Fatalf("io.ReadAll(os.Stdin) failed: %s", err)
+	}
+	if len(b) != 0 {
+		log.Fatalf("io.ReadAll(os.Stdin) returned non-nil: %x", b)
+	}
+	fmt.Fprintf(os.Stdout, "stdout\n")
+	fmt.Fprintf(os.Stderr, "stderr\n")
+}