package schema

import "testing"

func TestSafeSyncDatabaseName(t *testing.T) {
	// 有用户：中文昵称 → 稳定 user_{id}（改昵称不换库）
	if got := SafeSyncDatabaseName("婷婷管理员", 12, 34); got != "user_34" {
		t.Fatalf("want user_34, got %s", got)
	}
	// 无用户：中文/非法标签 → 稳定哈希
	h1 := SafeSyncDatabaseName("婷婷管理员", 12, 0)
	h2 := SafeSyncDatabaseName("婷婷管理员", 12, 0)
	if h1 != h2 || !ValidDBName(h1) || h1[:2] != "db" {
		t.Fatalf("hash mapping bad: %s", h1)
	}
	if SafeSyncDatabaseName("另一中文", 12, 0) == h1 {
		t.Fatal("different labels should hash differently")
	}
	if got := SafeSyncDatabaseName("ok_db", 1, 2); got != "ok_db" {
		t.Fatalf("want ok_db, got %s", got)
	}
	if !ValidDBName("user_1") || ValidDBName("婷婷管理员") {
		t.Fatal("ValidDBName mismatch")
	}
}

func TestHashLabelDBNameStable(t *testing.T) {
	a := HashLabelDBName("宇信达", 7)
	b := HashLabelDBName("宇信达", 7)
	if a != b || !ValidDBName(a) {
		t.Fatalf("unstable or invalid: %s", a)
	}
}