package windows

import (
	"errors"
	"testing"
)

func TestBuildCommandLine_HP_CMD_01(t *testing.T) {
	t.Parallel()
	cases := []struct {
		name      string
		arguments []string
		want      string
	}{
		{"empty vector", nil, ""},
		{"ordinary", []string{"-File", `C:\ProgramData\RVBox\work\run.ps1`}, `-File C:\ProgramData\RVBox\work\run.ps1`},
		{"empty argument", []string{"-Command", ""}, `-Command ""`},
		{"spaces", []string{"-File", `C:\path with spaces\run.ps1`}, `-File "C:\path with spaces\run.ps1"`},
		{"embedded quote", []string{`say "hello"`}, `"say \"hello\""`},
		{"trailing slash", []string{`C:\path with spaces\`}, `"C:\path with spaces\\"`},
		{"unicode", []string{"-File", `C:\工作\脚本.ps1`}, `-File C:\工作\脚本.ps1`},
	}
	for _, test := range cases {
		t.Run(test.name, func(t *testing.T) {
			t.Parallel()
			got, err := BuildCommandLine(test.arguments)
			if err != nil || got != test.want {
				t.Fatalf("BuildCommandLine(%q) = (%q, %v), want %q", test.arguments, got, err, test.want)
			}
		})
	}
}

func TestBuildCommandLineRejectsNUL_BH_CMD_01(t *testing.T) {
	t.Parallel()
	if _, err := BuildCommandLine([]string{"safe", "bad\x00argument"}); !errors.Is(err, ErrInvalidCommandLineArgument) {
		t.Fatalf("NUL argument error = %v", err)
	}
	if _, err := BuildCommandLine([]string{string([]byte{0xff})}); !errors.Is(err, ErrInvalidCommandLineArgument) {
		t.Fatalf("invalid UTF-8 argument error = %v", err)
	}
}