}
	if _, err := os.Stat("/etc/alpine-release"); err == nil {
		t.Skip("setgid is broken with musl libc - go.dev/issue/39857")
	}
	testSetgid(t)
}

func TestSetgidStress(t *testing.T) {
	if runtime.GOOS == "android" {
		t.Skip("unsupported on Android")
	}
	if _, err := os.Stat("/etc/alpine-release"); err == nil {
		t.Skip("setgid is broken with musl libc - go.dev/issue/39857")
	}
	testSetgidStress(t)
}

		filter, expect string
	}{
		{call: "Setegid(1)", fn: func() error { return syscall.Setegid(1) }, filter: "Gid:", expect: "\t0\t1\t0\t1"},
		{call: "Setegid(0)", fn: func() error { return syscall.Setegid(0) }, filter: "Gid:", expect: "\t0\t0\t0\t0"},

		{call: "Seteuid(1)", fn: func() error { return syscall.Seteuid(1) }, filter: "Uid:", expect: "\t0\t1\t0\t1"},

	},
	{
		Name:   "bar",
		Data:   nil, // large data set in the test
		Method: Deflate,
		Mode:   0644,
	},
	{
		Name:   "setuid",
		Data:   []byte("setuid file"),
		Method: Deflate,
		Mode:   0755 | fs.ModeSetuid,
	},
	{
		Name:   "setgid",
		Data:   []byte("setgid file"),
		Method: Deflate,
		Mode:   0755 | fs.ModeSetgid,
	},
	{
		Name:   "symlink",
		Data:   []byte("../link/target"),

	// Set file permission bits.
	mode = fs.FileMode(fi.h.Mode).Perm()

	// Set setuid, setgid and sticky bits.
	if fi.h.Mode&c_ISUID != 0 {
		mode |= fs.ModeSetuid
	}
	if fi.h.Mode&c_ISGID != 0 {
		mode |= fs.ModeSetgid
	}
	if fi.h.Mode&c_ISVTX != 0 {
		mode |= fs.ModeSticky
	}

	// Set file mode bits; clear perm, setuid, setgid, and sticky bits.
	switch m := fs.FileMode(fi.h.Mode) &^ 07777; m {
	case c_ISDIR:

pkg syscall (freebsd-riscv64), const SYS_GETPGID = 207 #53466
pkg syscall (freebsd-riscv64), const SYS_GETPGID ideal-int #53466
pkg syscall (freebsd-riscv64), const SYS_GETPGRP = 81 #53466
pkg syscall (freebsd-riscv64), const SYS_GETPGRP ideal-int #53466
pkg syscall (freebsd-riscv64), const SYS_GETPID = 20 #53466
pkg syscall (freebsd-riscv64), const SYS_GETPID ideal-int #53466

pkg syscall (netbsd-arm64-cgo), const SYS_SETEGID = 182
pkg syscall (netbsd-arm64-cgo), const SYS_SETEGID ideal-int
pkg syscall (netbsd-arm64-cgo), const SYS_SETEUID = 183
pkg syscall (netbsd-arm64-cgo), const SYS_SETEUID ideal-int
pkg syscall (netbsd-arm64-cgo), const SYS_SETGID = 181
pkg syscall (netbsd-arm64-cgo), const SYS_SETGID ideal-int
pkg syscall (netbsd-arm64-cgo), const SYS_SETGROUPS = 80

			utimes(path, atime, mtime, callback) { callback(enosys()); },
		};
	}

	if (!globalThis.process) {
		globalThis.process = {
			getuid() { return -1; },
			getgid() { return -1; },
			geteuid() { return -1; },
			getegid() { return -1; },
			getgroups() { throw enosys(); },
			pid: -1,
			ppid: -1,
			umask() { throw enosys(); },
			cwd() { throw enosys(); },
			chdir() { throw enosys(); },

pkg os, func FindProcess(int) (*Process, error)
pkg os, func Getegid() int
pkg os, func Getenv(string) string
pkg os, func Geteuid() int
pkg os, func Getgid() int
pkg os, func Getgroups() ([]int, error)
pkg os, func Getpagesize() int
pkg os, func Getpid() int
pkg os, func Getppid() int
pkg os, func Getuid() int
pkg os, func Getwd() (string, error)
pkg os, func Hostname() (string, error)

pkg syscall (darwin-arm64), const SYS_SETSID = 147
pkg syscall (darwin-arm64), const SYS_SETSID ideal-int
pkg syscall (darwin-arm64), const SYS_SETSOCKOPT = 105
pkg syscall (darwin-arm64), const SYS_SETSOCKOPT ideal-int
pkg syscall (darwin-arm64), const SYS_SETTID = 285
pkg syscall (darwin-arm64), const SYS_SETTID ideal-int
pkg syscall (darwin-arm64), const SYS_SETTID_WITH_PID = 311

pkg syscall (freebsd-arm64), const SYS_GETPGID = 207
pkg syscall (freebsd-arm64), const SYS_GETPGID ideal-int
pkg syscall (freebsd-arm64), const SYS_GETPGRP = 81
pkg syscall (freebsd-arm64), const SYS_GETPGRP ideal-int
pkg syscall (freebsd-arm64), const SYS_GETPID = 20
pkg syscall (freebsd-arm64), const SYS_GETPID ideal-int
pkg syscall (freebsd-arm64), const SYS_GETPPID = 39