package main

import (
	"errors"
	"strings"
	"testing"
)

func TestStartupErrorContainsPhaseAndCause(t *testing.T) {
	cause := errors.New("底层失败")
	err := newStartupError(phaseDatabase, "数据库初始化失败", cause)

	if err.Phase() != "database" {
		t.Fatalf("phase = %q, want database", err.Phase())
	}
	if !errors.Is(err, cause) {
		t.Fatal("startupError 应保留底层 cause")
	}
	if !strings.Contains(err.Error(), "database") {
		t.Fatalf("错误字符串应包含 phase，实际: %s", err.Error())
	}
}

func TestStartupErrorRedactsSensitiveUserMessage(t *testing.T) {
	message := "数据库初始化失败: nex:secret@tcp(localhost:3306)/nex password=secret api_key=sk-test"
	err := newStartupError(phaseDatabase, message, errors.New("cause password=secret api_key=sk-test"))
	userMessage := err.UserMessage()

	for _, secret := range []string{"secret", "sk-test"} {
		if strings.Contains(userMessage, secret) {
			t.Fatalf("用户提示不应包含敏感信息 %q，实际: %s", secret, userMessage)
		}
		if strings.Contains(err.Error(), secret) {
			t.Fatalf("日志错误字符串不应包含敏感信息 %q，实际: %s", secret, err.Error())
		}
	}
	if !strings.Contains(userMessage, "<redacted>") {
		t.Fatalf("用户提示应包含脱敏占位符，实际: %s", userMessage)
	}
}