tailscale/version/modinfo_test.go

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// Copyright (c) 2021 Tailscale Inc & 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 version_test
import (
"flag"
"os/exec"
"path/filepath"
"runtime"
"strings"
"testing"
"tailscale.com/version"
)
var (
findModuleInfo = version.ExportFindModuleInfo
cmdName = version.ExportCmdName
)
func TestFindModuleInfo(t *testing.T) {
dir := t.TempDir()
name := filepath.Join(dir, "tailscaled-version-test")
out, err := exec.Command("go", "build", "-o", name, "tailscale.com/cmd/tailscaled").CombinedOutput()
if err != nil {
t.Fatalf("failed to build tailscaled: %v\n%s", err, out)
}
modinfo, err := findModuleInfo(name)
if err != nil {
t.Fatal(err)
}
prefix := "path\ttailscale.com/cmd/tailscaled\nmod\ttailscale.com"
if !strings.HasPrefix(modinfo, prefix) {
t.Errorf("unexpected modinfo contents %q", modinfo)
}
}
func exe() string {
if runtime.GOOS == "windows" {
return ".exe"
}
return ""
}
var findModuleInfoName = flag.String("module-info-file", "", "if non-empty, test findModuleInfo against this filename")
func TestFindModuleInfoManual(t *testing.T) {
exe := *findModuleInfoName
if exe == "" {
t.Skip("skipping without --module-info-file filename")
}
cmd := cmdName(exe)
mod, err := findModuleInfo(exe)
if err != nil {
t.Fatal(err)
}
t.Logf("Got %q from: %s", cmd, mod)
}