feat(test): サーバーのバリデーションテストの実装

src/domain/server.test.ts

@@ -0,0 +1,116 @@
+import { describe, expect, it } from "vitest";
+import { Server, ServerArgs } from "./server.js";
+import { Snowflake } from "../helpers/id_generator.js";
+
+describe("Server", () => {
+  const defaultServerArgs: ServerArgs = {
+    id: "10101294855225344" as Snowflake,
+    host: "social.example.jp",
+    softwareName: "Mastodon",
+    softwareVersion: "4.0.0",
+    name: "example social",
+    description: "this is example social",
+    maintainer: "example maintainer",
+    maintainerEmail: "[email protected]",
+    iconURL: "https://social.example.jp/icon.png",
+    faviconURL: "https://social.example.jp/favicon.png",
+  };
+
+  it("128文字以上のホスト名は設定できない", () => {
+    expect(() => {
+      new Server({
+        ...defaultServerArgs,
+        host: "a".repeat(128 + 1),
+      });
+    }).toThrowError(new Error("failed to create server: host is too long"));
+  });
+
+  it("4文字以下のホスト名は設定できない", () => {
+    expect(() => {
+      new Server({
+        ...defaultServerArgs,
+        host: "a.b",
+      });
+    }).toThrowError(new Error("failed to create server: host is too short"));
+  });
+
+  it("ホスト名を設定できる", () => {
+    expect(() => {
+      new Server({
+        ...defaultServerArgs,
+      });
+    }).toBeTruthy();
+  });
+
+  it("128文字以上のソフトウェア名は設定できない", () => {
+    expect(() => {
+      new Server({
+        ...defaultServerArgs,
+        softwareName: "a".repeat(128 + 1),
+      });
+    }).toThrowError(
+      new Error("failed to create server: softwareName is too long"),
+    );
+  });
+
+  it("ソフトウェア名を設定できる", () => {
+    expect(() => {
+      new Server({
+        ...defaultServerArgs,
+      });
+    }).toBeTruthy();
+  });
+
+  it("128文字以上のソフトウェアバージョンは設定できない", () => {
+    expect(() => {
+      new Server({
+        ...defaultServerArgs,
+        softwareVersion: "a".repeat(128 + 1),
+      });
+    }).toThrowError(
+      new Error("failed to create server: softwareVersion is too long"),
+    );
+  });
+
+  it("128文字以上のサーバー名は設定できない", () => {
+    expect(() => {
+      new Server({
+        ...defaultServerArgs,
+        name: "a".repeat(128 + 1),
+      });
+    }).toThrowError(new Error("failed to create server: name is too long"));
+  });
+
+  it("3000文字以上のサーバー説明文は設定できない", () => {
+    expect(() => {
+      new Server({
+        ...defaultServerArgs,
+        description: "a".repeat(3000 + 1),
+      });
+    }).toThrowError(
+      new Error("failed to create server: description is too long"),
+    );
+  });
+
+  it("256文字以上の管理者名は設定できない", () => {
+    expect(() => {
+      new Server({
+        ...defaultServerArgs,
+        maintainer: "a".repeat(256 + 1),
+      });
+    }).toThrowError(
+      new Error("failed to create server: maintainer is too long"),
+    );
+  });
+
+  it("256文字以上の管理者メールアドレスは設定できない", () => {
+    expect(() => {
+      new Server({
+        ...defaultServerArgs,
+        maintainerEmail: "a".repeat(256 + 1),
+      });
+    }).toThrowError(
+      new Error("failed to create server: maintainerEmail is too long"),
+    );
+  });
+});

src/domain/server.ts

@@ -1,5 +1,18 @@
 import { Snowflake } from "../helpers/id_generator.js";
 
+export interface ServerArgs {
+  id: Snowflake;
+  host: string;
+  softwareName: string;
+  softwareVersion: string;
+  name: string;
+  description: string;
+  maintainer: string;
+  maintainerEmail: string;
+  iconURL: string;
+  faviconURL: string;
+}
+
 export class Server {
   get softwareName(): string {
     return this._softwareName;
@@ -105,6 +118,8 @@ export class Server {
     iconURL: string;
     faviconURL: string;
   }) {
+    this.validate(args);
+
     this._id = args.id;
     this._host = args.host;
     this._softwareName = args.softwareName;
@@ -116,4 +131,36 @@ export class Server {
     this._iconURL = args.iconURL;
     this._faviconURL = args.faviconURL;
   }
+
+  private validate(args: ServerArgs) {
+    if ([...args.host].length > 128) {
+      throw new Error("failed to create server: host is too long");
+    } else if ([...args.host].length < 4) {
+      throw new Error("failed to create server: host is too short");
+    }
+
+    if ([...args.softwareName].length > 128) {
+      throw new Error("failed to create server: softwareName is too long");
+    }
+
+    if ([...args.softwareVersion].length > 128) {
+      throw new Error("failed to create server: softwareVersion is too long");
+    }
+
+    if ([...args.name].length > 128) {
+      throw new Error("failed to create server: name is too long");
+    }
+
+    if ([...args.description].length > 3000) {
+      throw new Error("failed to create server: description is too long");
+    }
+
+    if ([...args.maintainer].length > 256) {
+      throw new Error("failed to create server: maintainer is too long");
+    }
+
+    if ([...args.maintainerEmail].length > 256) {
+      throw new Error("failed to create server: maintainerEmail is too long");
+    }
+  }
 }