package promptkit

import (
	"errors"
	"fmt"
	"testing"
)

func TestGenerationErrorNilAndZeroValue(t *testing.T) {
	var nilError *GenerationError
	zeroError := &GenerationError{}

	for name, err := range map[string]*GenerationError{
		"nil":  nilError,
		"zero": zeroError,
	} {
		t.Run(name, func(t *testing.T) {
			if err.StatusCode() != 0 || err.ProviderCode() != "" || err.ProviderType() != "" || err.ProviderMessage() != "" {
				t.Fatalf("accessors returned provider details: %#v", err)
			}
			if err.Error() != "failed to generate output" || err.GoString() != "failed to generate output" {
				t.Fatalf("redacted formatting = (%q, %q)", err.Error(), err.GoString())
			}
			if fmt.Sprintf("%v", err) != "failed to generate output" || fmt.Sprintf("%#v", err) != "failed to generate output" {
				t.Fatalf("formatted error = (%q, %q)", fmt.Sprintf("%v", err), fmt.Sprintf("%#v", err))
			}
			if !errors.Is(err, ErrLLMGenerate) {
				t.Fatalf("errors.Is(%v, ErrLLMGenerate) = false", err)
			}
		})
	}
}