#419 フロントのテスト追加

frontend/src/lib/posts.test.ts

@@ -116,4 +116,25 @@ describe ('posts API functions', () => {
         { params: { page: 2, limit: 50 } },
     )
   })
+
+  it ('maps an explicit external tag history filter to external_tag', async () => {
+    api.apiGet.mockResolvedValueOnce ({ versions: [], count: 0 })
+
+    await fetchPostChanges ({
+      externalTag: '7',
+      page:        2,
+      limit:       50,
+    })
+
+    expect (api.apiGet).toHaveBeenCalledWith (
+	'/posts/versions',
+	{
+	  params: {
+	    external_tag: '7',
+	    page:         2,
+	    limit:        50,
+	  },
+	},
+    )
+  })
 })