1 files changed, 25 insertions, 0 deletions
diff --git a/src/runtime/syscall_unix_test.go b/src/runtime/syscall_unix_test.go
new file mode 100644
index 0000000..2a69c40
--- /dev/null
+++ b/src/runtime/syscall_unix_test.go
@@ -0,0 +1,25 @@
+// Copyright 2022 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.
+
+//go:build unix
+
+package runtime_test
+
+import (
+	"runtime"
+	"syscall"
+	"testing"
+)
+
+func TestSyscallFlagAlignment(t *testing.T) {
+	// TODO(mknyszek): Check other flags.
+	check := func(name string, got, want int) {
+		if got != want {
+			t.Errorf("flag %s does not line up: got %d, want %d", name, got, want)
+		}
+	}
+	check("O_WRONLY", runtime.O_WRONLY, syscall.O_WRONLY)
+	check("O_CREAT", runtime.O_CREAT, syscall.O_CREAT)
+	check("O_TRUNC", runtime.O_TRUNC, syscall.O_TRUNC)
+}