package internal

import (
	"errors"
	"testing"
)

func TestSetupBPFModuleErrorWrapsStage(t *testing.T) {
	cause := errors.New("boom")

	err := setupBPFModuleError("load object", cause)
	if err == nil {
		t.Fatalf("expected wrapped error")
	}
	if got, want := err.Error(), "setup BPF module: load object: boom"; got != want {
		t.Fatalf("wrapped error = %q, want %q", got, want)
	}
	if !errors.Is(err, cause) {
		t.Fatalf("expected wrapped error to retain original cause")
	}
}

func TestSetupBPFModuleErrorNil(t *testing.T) {
	if err := setupBPFModuleError("attach probes", nil); err != nil {
		t.Fatalf("expected nil error passthrough, got %v", err)
	}
}