knowledge-governance/internal/librarydiff/wiki_metadata_test.go

package librarydiff

import "testing"

// F18：只改 title / summary / parent_slug 也必须在发布前差异里出现。
// 旧比较结构根本没读 summary/parent_slug，title 读了却不比较——三种改动都被漏报，
// 于是"预览无变化"可以对应一次真实的元数据变更。
func TestWikiMetadataChangeMustAppear(t *testing.T) {
	for _, field := range []string{"title", "summary", "parent_slug"} {
		t.Run(field, func(t *testing.T) {
			before := map[string]any{"slug": "page-a", "title": "old", "summary": "old",
				"parent_slug": "old", "content": "unchanged"}
			after := map[string]any{"slug": "page-a", "title": "old", "summary": "old",
				"parent_slug": "old", "content": "unchanged"}
			after[field] = "new"
			result, err := CompareWiki([]map[string]any{before}, []map[string]any{after})
			if err != nil {
				t.Fatal(err)
			}
			if result.Updated != 1 {
				t.Fatalf("只改 %s 必须记成 updated=1：%+v", field, result)
			}
			if len(result.Pages) != 1 || len(result.Pages[0].Changed) == 0 {
				t.Fatalf("差异项必须列出改了哪些字段：%+v", result.Pages)
			}
		})
	}
	// 反例：完全没有变化时不报差异（避免把"无变化"也渲染成更新）。
	same := map[string]any{"slug": "page-b", "title": "t", "summary": "s", "parent_slug": "p", "content": "c"}
	result, err := CompareWiki([]map[string]any{same}, []map[string]any{same})
	if err != nil {
		t.Fatal(err)
	}
	if result.Updated != 0 || len(result.Pages) != 0 {
		t.Fatalf("无变化不应产生差异：%+v", result)
	}
}