diff options
Diffstat (limited to 'src/syscall/exec_linux_test.go')
| -rw-r--r-- | src/syscall/exec_linux_test.go | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/src/syscall/exec_linux_test.go b/src/syscall/exec_linux_test.go index f4ff7bf81b..e9919b6801 100644 --- a/src/syscall/exec_linux_test.go +++ b/src/syscall/exec_linux_test.go @@ -109,11 +109,17 @@ func TestUnshare(t *testing.T) { t.Fatal(err) } - orig, err := os.ReadFile(path) + b, err := os.ReadFile(path) if err != nil { t.Fatal(err) } - origLines := strings.Split(strings.TrimSpace(string(orig)), "\n") + orig := strings.TrimSpace(string(b)) + if strings.Contains(orig, "lo:") && strings.Count(orig, ":") == 1 { + // This test expects there to be at least 1 more network interface + // in addition to the local network interface, so that it can tell + // that unshare worked. + t.Skip("not enough network interfaces to test unshare with") + } cmd := testenv.Command(t, "cat", path) cmd.SysProcAttr = &syscall.SysProcAttr{ @@ -128,15 +134,18 @@ func TestUnshare(t *testing.T) { t.Fatalf("Cmd failed with err %v, output: %s", err, out) } - // Check there is only the local network interface + // Check there is only the local network interface. sout := strings.TrimSpace(string(out)) if !strings.Contains(sout, "lo:") { t.Fatalf("Expected lo network interface to exist, got %s", sout) } + origLines := strings.Split(orig, "\n") lines := strings.Split(sout, "\n") if len(lines) >= len(origLines) { - t.Fatalf("Got %d lines of output, want <%d", len(lines), len(origLines)) + t.Logf("%s before unshare:\n%s", path, orig) + t.Logf("%s after unshare:\n%s", path, sout) + t.Fatalf("Got %d lines of output, want < %d", len(lines), len(origLines)) } } |