Cyrene_v2/internal/config/websearch_providers_test.go

package config

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

// 本文件钉住切片 WS1-B 的搜索配置键（design/27 §3）：
// WEB_SEARCH_PROVIDER / _FALLBACK / _MAX_RESULTS 与各家独立一组键
// （WEB_SEARCH_<NAME>_API_KEY / _BASE_URL），以及 ResolveProvider 的关闭语义。

// wsTestLoad 写一份只含必填键加 extra 行的 .env，加载出配置。
func wsTestLoad(t *testing.T, extra ...string) (*Config, error) {
	t.Helper()
	lines := append([]string{"JWT_SECRET=" + strings.Repeat("s", 40)}, extra...)
	path := filepath.Join(t.TempDir(), ".env")
	if err := os.WriteFile(path, []byte(strings.Join(lines, "\n")+"\n"), 0o600); err != nil {
		t.Fatalf("write .env: %v", err)
	}
	return Load(path)
}

// TestWebSearchProvider_Defaults 钉住三个新键的默认值：provider=searxng、
// maxResults=10、fallback 为空（= 只管手选那一家）。
func TestWebSearchProvider_Defaults(t *testing.T) {
	cfg, err := wsTestLoad(t)
	if err != nil {
		t.Fatalf("Load: %v", err)
	}
	if cfg.WebSearch.Provider != "searxng" {
		t.Fatalf("WEB_SEARCH_PROVIDER 默认值 = %q, want searxng", cfg.WebSearch.Provider)
	}
	if cfg.WebSearch.MaxResults != 10 {
		t.Fatalf("WEB_SEARCH_MAX_RESULTS 默认值 = %d, want 10", cfg.WebSearch.MaxResults)
	}
	if len(cfg.WebSearch.Fallback) != 0 {
		t.Fatalf("WEB_SEARCH_FALLBACK 未配置时应为空, got %v", cfg.WebSearch.Fallback)
	}
	// 云家的 base URL 有默认值、key 一律为空（未配置 ⇒ 该家不出现在可用清单里）。
	if cfg.WebSearch.ZhipuBaseURL == "" || cfg.WebSearch.BochaBaseURL == "" ||
		cfg.WebSearch.AliyunIQSBaseURL == "" || cfg.WebSearch.VolcengineBaseURL == "" ||
		cfg.WebSearch.BaiduQianfanBaseURL == "" {
		t.Fatalf("各家的 BASE_URL 必须有默认值: %+v", cfg.WebSearch)
	}
	if cfg.WebSearch.ZhipuAPIKey != "" || cfg.WebSearch.BochaAPIKey != "" ||
		cfg.WebSearch.AliyunIQSAPIKey != "" || cfg.WebSearch.VolcengineAPIKey != "" ||
		cfg.WebSearch.BaiduQianfanAPIKey != "" {
		t.Fatalf("各家 API key 未配置时必须为空: %+v", cfg.WebSearch)
	}
}

// TestWebSearchProvider_EnvOverrides 钉住新键都能被 .env 覆盖（含逗号分隔的降级链）。
func TestWebSearchProvider_EnvOverrides(t *testing.T) {
	cfg, err := wsTestLoad(t,
		"WEB_SEARCH_PROVIDER=Bocha",
		"WEB_SEARCH_FALLBACK=zhipu,bocha,searxng",
		"WEB_SEARCH_MAX_RESULTS=9",
		"WEB_SEARCH_ZHIPU_API_KEY=zk",
		"WEB_SEARCH_ZHIPU_BASE_URL=https://zhipu.example",
		"WEB_SEARCH_ALIYUN_IQS_API_KEY=ak",
		"WEB_SEARCH_ALIYUN_IQS_BASE_URL=https://iqs.example",
		"WEB_SEARCH_BOCHA_API_KEY=bk",
		"WEB_SEARCH_BOCHA_BASE_URL=https://bocha.example",
		"WEB_SEARCH_VOLCENGINE_API_KEY=vk",
		"WEB_SEARCH_VOLCENGINE_BASE_URL=https://volc.example",
		"WEB_SEARCH_BAIDU_QIANFAN_API_KEY=qk",
		"WEB_SEARCH_BAIDU_QIANFAN_BASE_URL=https://qianfan.example",
	)
	if err != nil {
		t.Fatalf("Load: %v", err)
	}
	ws := cfg.WebSearch
	if ws.Provider != "Bocha" {
		t.Fatalf("Provider = %q（大小写应原样保留，比较时再归一化）", ws.Provider)
	}
	if got := ws.Fallback; len(got) != 3 || got[0] != "zhipu" || got[2] != "searxng" {
		t.Fatalf("Fallback = %v, want [zhipu bocha searxng]", got)
	}
	if ws.MaxResults != 9 {
		t.Fatalf("MaxResults = %d, want 9", ws.MaxResults)
	}
	for name, got := range map[string]string{
		"Zhipu": ws.ZhipuAPIKey, "AliyunIQS": ws.AliyunIQSAPIKey, "Bocha": ws.BochaAPIKey,
		"Volcengine": ws.VolcengineAPIKey, "BaiduQianfan": ws.BaiduQianfanAPIKey,
	} {
		if got == "" {
			t.Errorf("%s 的 API key 没被读进来", name)
		}
	}
	for name, got := range map[string]string{
		"Zhipu": ws.ZhipuBaseURL, "AliyunIQS": ws.AliyunIQSBaseURL, "Bocha": ws.BochaBaseURL,
		"Volcengine": ws.VolcengineBaseURL, "BaiduQianfan": ws.BaiduQianfanBaseURL,
	} {
		if !strings.HasSuffix(got, ".example") {
			t.Errorf("%s 的 BASE_URL 没被覆盖: %q", name, got)
		}
	}
}

// TestWebSearchConfig_ResolveProvider 是关闭语义的表驱动：空 / off / none ⇒ 关闭
// （组合根据此不注册工具）；其余 ⇒ 选定名。
func TestWebSearchConfig_ResolveProvider(t *testing.T) {
	cases := []struct {
		name        string
		value       string
		wantDisable bool
		wantSel     string
	}{
		{"默认 searxng", "searxng", false, "searxng"},
		{"大写 Zhipu", " Zhipu ", false, "Zhipu"},
		{"空串 = 关闭", "", true, ""},
		{"off", "off", true, ""},
		{"none", "NONE", true, ""},
		{"带空白的 None", "  none  ", true, ""},
	}
	for _, tc := range cases {
		tc := tc
		t.Run(tc.name, func(t *testing.T) {
			got := WebSearchConfig{Provider: tc.value}.ResolveProvider()
			if got.Disabled != tc.wantDisable || got.Selected != tc.wantSel {
				t.Fatalf("ResolveProvider(%q) = %+v, want disabled=%v selected=%q",
					tc.value, got, tc.wantDisable, tc.wantSel)
			}
		})
	}
}