net: mark withTCPConnPair as test helper

Noticed while analyzing test failures on go.dev/cl/427714 that were
pointing to withTCPConnPair instead of the failing tests.

Change-Id: Ie2366962c2253e0c2a6546d3b7f43a96390bc7bb
Reviewed-on: https://go-review.googlesource.com/c/go/+/428456
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Tobias Klauser <tobias.klauser@gmail.com>

diff --git a/src/net/net_test.go b/src/net/net_test.go
index c297c51fb9ea603bb7dc6c1eecb20cd138c120e6..05c058a46c1ac2631e2bba7da06d821f4ed60959 100644 (file)
--- a/src/net/net_test.go
+++ b/src/net/net_test.go
@@ -430,6 +430,7 @@ func TestZeroByteRead(t *testing.T) {
 // runs peer1 and peer2 concurrently. withTCPConnPair returns when
 // both have completed.
 func withTCPConnPair(t *testing.T, peer1, peer2 func(c *TCPConn) error) {
+       t.Helper()
        ln := newLocalListener(t, "tcp")
        defer ln.Close()
        errc := make(chan error, 2)