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package cmdutil
import (
"os"
"path/filepath"
"strings"
"testing"
)
func Test_executable(t *testing.T) {
testExe, err := os.Executable()
if err != nil {
t.Fatal(err)
}
testExeName := filepath.Base(testExe)
// Create 3 extra PATH entries that each contain an executable with the same name as the running test
// process. The first is a symlink, but to an unrelated executable, the second is a symlink to our test
// process and thus represents the result we want, and the third one is an unrelated executable.
dir := t.TempDir()
bin1 := filepath.Join(dir, "bin1")
bin1Exe := filepath.Join(bin1, testExeName)
bin2 := filepath.Join(dir, "bin2")
bin2Exe := filepath.Join(bin2, testExeName)
bin3 := filepath.Join(dir, "bin3")
bin3Exe := filepath.Join(bin3, testExeName)
if err := os.MkdirAll(bin1, 0755); err != nil {
t.Fatal(err)
}
if err := os.MkdirAll(bin2, 0755); err != nil {
t.Fatal(err)
}
if err := os.MkdirAll(bin3, 0755); err != nil {
t.Fatal(err)
}
if f, err := os.OpenFile(bin3Exe, os.O_CREATE, 0755); err == nil {
f.Close()
} else {
t.Fatal(err)
}
if err := os.Symlink(testExe, bin2Exe); err != nil {
t.Fatal(err)
}
if err := os.Symlink(bin3Exe, bin1Exe); err != nil {
t.Fatal(err)
}
oldPath := os.Getenv("PATH")
t.Setenv("PATH", strings.Join([]string{bin1, bin2, bin3, oldPath}, string(os.PathListSeparator)))
if got := executable(""); got != bin2Exe {
t.Errorf("executable() = %q, want %q", got, bin2Exe)
}
}
func Test_executable_relative(t *testing.T) {
testExe, err := os.Executable()
if err != nil {
t.Fatal(err)
}
testExeName := filepath.Base(testExe)
// Create 3 extra PATH entries that each contain an executable with the same name as the running test
// process. The first is a relative symlink, but to an unrelated executable, the second is a relative
// symlink to our test process and thus represents the result we want, and the third one is an unrelated
// executable.
dir := t.TempDir()
bin1 := filepath.Join(dir, "bin1")
bin1Exe := filepath.Join(bin1, testExeName)
bin2 := filepath.Join(dir, "bin2")
bin2Exe := filepath.Join(bin2, testExeName)
bin3 := filepath.Join(dir, "bin3")
bin3Exe := filepath.Join(bin3, testExeName)
if err := os.MkdirAll(bin1, 0755); err != nil {
t.Fatal(err)
}
if err := os.MkdirAll(bin2, 0755); err != nil {
t.Fatal(err)
}
if err := os.MkdirAll(bin3, 0755); err != nil {
t.Fatal(err)
}
if f, err := os.OpenFile(bin3Exe, os.O_CREATE, 0755); err == nil {
f.Close()
} else {
t.Fatal(err)
}
bin2Rel, err := filepath.Rel(bin2, testExe)
if err != nil {
t.Fatal(err)
}
if err := os.Symlink(bin2Rel, bin2Exe); err != nil {
t.Fatal(err)
}
bin1Rel, err := filepath.Rel(bin1, bin3Exe)
if err != nil {
t.Fatal(err)
}
if err := os.Symlink(bin1Rel, bin1Exe); err != nil {
t.Fatal(err)
}
oldPath := os.Getenv("PATH")
t.Setenv("PATH", strings.Join([]string{bin1, bin2, bin3, oldPath}, string(os.PathListSeparator)))
if got := executable(""); got != bin2Exe {
t.Errorf("executable() = %q, want %q", got, bin2Exe)
}
}
func Test_Executable_override(t *testing.T) {
override := strings.Join([]string{"C:", "cygwin64", "home", "gh.exe"}, string(os.PathSeparator))
t.Setenv("GH_PATH", override)
f := Factory{}
if got := f.Executable(); got != override {
t.Errorf("executable() = %q, want %q", got, override)
}
}
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