nixbuild/exec_test.go

37 lines
861 B
Go

package nix_test
import (
"errors"
"os"
"os/exec"
"slices"
"syscall"
"testing"
"gensokyo.uk/nix"
)
func TestNixWriteStdin(t *testing.T) {
t.Run("already set", func(t *testing.T) {
ctx := nix.New(t.Context(), nil, os.Stdout, os.Stderr)
cmd := exec.CommandContext(t.Context(), nonexistent)
cmd.Stdin = os.Stdin
if _, err := ctx.WriteStdin(cmd, nil, nil); err == nil {
t.Fatal("WriteStdinCommand unexpectedly succeeded")
}
})
t.Run("f returns error", func(t *testing.T) {
stubNixCommand(t)
ctx := newStubContext(t.Context(), nil, os.Stdout, os.Stderr)
cmd := ctx.Nix(t.Context(), "true")
if _, err := ctx.WriteStdin(
cmd,
slices.Values(make([]string, 0)),
func() error { return syscall.ENOSYS },
); !errors.Is(err, syscall.ENOSYS) {
t.Fatalf("WriteStdinCommand: error = %v, want %v", err, syscall.ENOSYS)
}
})
}