elvish/pkg/mods/unix/umask_test.go
Qi Xiao 47de83c7d1 Reorganize standard library modules.
- Move from pkg/eval/mods to pkg/mods

- Introduce mods.AddTo that adds all standard library modules

- Move epm and readline-binding into their own packages
2021-08-24 15:56:04 +01:00

65 lines
2.6 KiB
Go

//go:build !windows && !plan9 && !js
// +build !windows,!plan9,!js
package unix
import (
"testing"
"src.elv.sh/pkg/eval"
"src.elv.sh/pkg/eval/errs"
. "src.elv.sh/pkg/eval/evaltest"
)
// Note that this unit test assumes a UNIX environment with a POSIX compatible
// /bin/sh program.
func TestUmask(t *testing.T) {
setup := func(ev *eval.Evaler) {
ev.AddGlobal(eval.NsBuilder{}.AddNs("unix", Ns).Ns())
}
TestWithSetup(t, setup,
// We have to start with a known umask value.
That(`set unix:umask = 022`).Puts(),
That(`put $unix:umask`).Puts(`0o022`),
// Verify that mutating the value and outputting the new value works.
That(`set unix:umask = 23`).Puts(),
That(`put $unix:umask`).Puts(`0o023`),
That(`set unix:umask = 0o75`).Puts(),
That(`put $unix:umask`).Puts(`0o075`),
// Verify that a temporary umask change is reverted upon completion of
// the command. Both for builtin and external commands.
That(`unix:umask=012 put $unix:umask`).Puts(`0o012`),
That(`unix:umask=0o23 /bin/sh -c 'umask'`).Prints("0023\n"),
That(`unix:umask=56 /bin/sh -c 'umask'`).Prints("0056\n"),
That(`put $unix:umask`).Puts(`0o075`),
// People won't normally use non-octal bases but make sure these cases
// behave sensibly given that Elvish supports number literals with an
// explicit base.
That(`unix:umask=0x43 /bin/sh -c 'umask'`).Prints("0103\n"),
That(`unix:umask=0b001010100 sh -c 'umask'`).Prints("0124\n"),
// We should be back to our expected umask given the preceding tests
// applied a temporary change to that process attribute.
That(`put $unix:umask`).Puts(`0o075`),
// An explicit num (int) value is handled correctly.
That(`unix:umask=(num 0o123) put $unix:umask`).Puts(`0o123`),
// An explicit float64 value is handled correctly.
That(`unix:umask=(float64 0o17) put $unix:umask`).Puts(`0o017`),
That(`set unix:umask = (float64 123.4)`).Throws(
errs.BadValue{What: "umask", Valid: validUmaskMsg, Actual: "123.4"}),
// An invalid string should raise the expected exception.
That(`unix:umask = 022z`).Throws(errs.BadValue{
What: "umask", Valid: validUmaskMsg, Actual: "022z"}),
// An invalid data type should raise the expected exception.
That(`unix:umask = [1]`).Throws(errs.BadValue{
What: "umask", Valid: validUmaskMsg, Actual: "list"}),
// Values outside the legal range should raise the expected exception.
That(`unix:umask = 0o1000`).Throws(errs.OutOfRange{
What: "umask", ValidLow: "0", ValidHigh: "0o777", Actual: "0o1000"}),
That(`unix:umask = -1`).Throws(errs.OutOfRange{
What: "umask", ValidLow: "0", ValidHigh: "0o777", Actual: "-0o1"}),
)
}