package blender

import (
	"os"
	"path/filepath"
	"strings"
	"testing"
)

func TestResolveBinaryPath_AbsoluteLikePath(t *testing.T) {
	got, err := ResolveBinaryPath("./blender")
	if err != nil {
		t.Fatalf("ResolveBinaryPath failed: %v", err)
	}
	if !filepath.IsAbs(got) {
		t.Fatalf("expected absolute path, got %q", got)
	}
}

func TestResolveBinaryPath_Empty(t *testing.T) {
	if _, err := ResolveBinaryPath(""); err == nil {
		t.Fatal("expected error for empty blender binary")
	}
}

func TestTarballEnv_SetsAndExtendsLDLibraryPath(t *testing.T) {
	bin := filepath.Join(string(os.PathSeparator), "tmp", "blender", "blender")
	got := TarballEnv(bin, []string{"A=B", "LD_LIBRARY_PATH=/old"})
	joined := strings.Join(got, "\n")
	if !strings.Contains(joined, "LD_LIBRARY_PATH=/tmp/blender/lib:/old") {
		t.Fatalf("expected LD_LIBRARY_PATH to include blender lib, got %v", got)
	}
}