nodejs: add tests to library (#7694)

* nodejs: add tests to library

* new tests

* remove message splitting

* fix race

* docs

* replace extract-zip with yauzl that it wraps (high severity issue)

* fix ci tests

* skip server tests on macos and win unless SMP_SERVER is set

* fix win test

* fix win test

---------

Co-authored-by: Evgeny @ SimpleX Chat <259188159+evgeny-simplex@users.noreply.github.com>

packages/simplex-chat-nodejs/tests/core.test.ts

@@ -17,8 +17,18 @@ describe("Core tests", () => {
   }, 300000);
   const tmpDir = "./tests/tmp";
   const dbPath = path.join(tmpDir, "simplex_v1");
+  const templateDir = "./tests/template";
+  const templateDbPath = path.join(templateDir, "simplex_v1");
 
-  beforeEach(() => fs.mkdirSync(tmpDir, {recursive: true}));
+  beforeAll(async () => {
+    fs.mkdirSync(templateDir, {recursive: true});
+    await stopAndClose(await core.chatMigrateInit(templateDbPath, "key", core.MigrationConfirmation.YesUp));
+  }, 30000);
+  afterAll(() => fs.rmSync(templateDir, {recursive: true, force: true}));
+  beforeEach(() => {
+    fs.mkdirSync(tmpDir, {recursive: true});
+    copyTemplateDb(dbPath);
+  });
   afterEach(() => fs.rmSync(tmpDir, {recursive: true, force: true}));
 
   async function stopAndClose(ctrl: bigint): Promise<void> {
@@ -26,6 +36,10 @@ describe("Core tests", () => {
     await core.chatCloseStore(ctrl);
   }
 
+  function copyTemplateDb(dbFilePrefix: string): void {
+    for (const suffix of ["_chat.db", "_agent.db"]) fs.copyFileSync(templateDbPath + suffix, dbFilePrefix + suffix);
+  }
+
   it("should initialize chat controller", async () => {
     const ctrl = await core.chatMigrateInit(dbPath, "key", core.MigrationConfirmation.YesUp);
     expect(typeof ctrl).toBe("bigint");
@@ -132,7 +146,7 @@ describe("Core tests", () => {
 
   it("should not block the libuv pool while receiving", async () => {
     const ctrl = await core.chatMigrateInit(dbPath, "key", core.MigrationConfirmation.YesUp);
-    const receives = [1, 2, 3, 4].map(() => core.chatRecvMsgWait(ctrl, 2_000_000));
+    const receives = [1, 2, 3, 4].map(() => core.chatRecvMsgWait(ctrl, 500_000));
     const start = Date.now();
     await fs.promises.stat(tmpDir);
     expect(Date.now() - start).toBeLessThan(200);
@@ -159,8 +173,10 @@ describe("Core tests", () => {
   }, 30000);
 
   it("should receive on two controllers concurrently", async () => {
-    const ctrlA = await core.chatMigrateInit(path.join(tmpDir, "simplex_a"), "key", core.MigrationConfirmation.YesUp);
-    const ctrlB = await core.chatMigrateInit(path.join(tmpDir, "simplex_b"), "key", core.MigrationConfirmation.YesUp);
+    const dbPathB = path.join(tmpDir, "simplex_b");
+    copyTemplateDb(dbPathB);
+    const ctrlA = await core.chatMigrateInit(dbPath, "key", core.MigrationConfirmation.YesUp);
+    const ctrlB = await core.chatMigrateInit(dbPathB, "key", core.MigrationConfirmation.YesUp);
     const start = Date.now();
     await expect(Promise.all([core.chatRecvMsgWait(ctrlA, 1_000_000), core.chatRecvMsgWait(ctrlB, 1_000_000)]))
       .resolves.toEqual([undefined, undefined]);
@@ -235,7 +251,7 @@ describe("Core tests", () => {
   }, 35000);
 
   it("should let the process exit while a receiver is idle", () => {
-    const childDbPath = path.resolve(tmpDir, "simplex_child");
+    const childDbPath = path.resolve(dbPath);
     const script = `
       const simplex = require("./build/Release/simplex.node");
       simplex.load(${JSON.stringify(libPath)});