| // +build !nacl,!js,!android,gc |
| // run |
| |
| // Copyright 2016 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 ( |
| "bytes" |
| "log" |
| "os/exec" |
| "strings" |
| ) |
| |
| func main() { |
| checkLinkOutput("", "-B argument must start with 0x") |
| checkLinkOutput("0", "-B argument must start with 0x") |
| checkLinkOutput("0x", "usage") |
| checkLinkOutput("0x0", "-B argument must have even number of digits") |
| checkLinkOutput("0x00", "usage") |
| checkLinkOutput("0xYZ", "-B argument contains invalid hex digit") |
| checkLinkOutput("0x"+strings.Repeat("00", 32), "usage") |
| checkLinkOutput("0x"+strings.Repeat("00", 33), "-B option too long (max 32 digits)") |
| } |
| |
| func checkLinkOutput(buildid string, message string) { |
| cmd := exec.Command("go", "tool", "link", "-B", buildid) |
| out, err := cmd.CombinedOutput() |
| if err == nil { |
| log.Fatalf("expected cmd/link to fail") |
| } |
| |
| firstLine := string(bytes.SplitN(out, []byte("\n"), 2)[0]) |
| if strings.HasPrefix(firstLine, "panic") { |
| log.Fatalf("cmd/link panicked:\n%s", out) |
| } |
| |
| if !strings.Contains(firstLine, message) { |
| log.Fatalf("cmd/link output did not include expected message %q: %s", message, firstLine) |
| } |
| } |
