✅ Add tests for tokens

src/modules/tokens/tokens.service.spec.ts

@@ -0,0 +1,66 @@
+import { ConfigService } from '@nestjs/config';
+import { sign } from 'jsonwebtoken';
+import { TokensService } from './tokens.service';
+
+const tokensService = new TokensService(
+  new ConfigService({ security: { jwtSecret: 'example' } }),
+);
+
+describe('TokensService', () => {
+  describe('generateUuid', () => {
+    it('generated UUID of length', async () => {
+      const uuid = tokensService.generateUuid();
+      expect(uuid.length).toBe(36);
+    });
+    it('generated valid UUID', async () => {
+      const uuid = tokensService.generateUuid();
+      expect(uuid).toMatch(
+        /^[0-9a-f]{8}-[0-9a-f]{4}-[0-5][0-9a-f]{3}-[089ab][0-9a-f]{3}-[0-9a-f]{12}$/i,
+      );
+    });
+  });
+
+  describe('signJwt', () => {
+    it('signs a JWT of length', async () => {
+      const jwt = tokensService.signJwt('SUBJECT', { ok: true }, '1d', {});
+      expect(jwt.length).toBe(163);
+    });
+    it('signs a valid JWT', async () => {
+      const jwt = tokensService.signJwt('SUBJECT', { ok: true }, '1d', {});
+      expect(jwt).toMatch(
+        /^([a-zA-Z0-9_=]+)\.([a-zA-Z0-9_=]+)\.([a-zA-Z0-9_\-\+\/=]*)/,
+      );
+    });
+  });
+
+  describe('verify', () => {
+    it('verifies a JWT', async () => {
+      const jwt = tokensService.signJwt('SUBJECT', { ok: true }, '1d', {});
+      const verified = tokensService.verify('SUBJECT', jwt);
+      expect(verified).toBeDefined();
+    });
+    it('verifies a JWT and gets data', async () => {
+      const jwt = tokensService.signJwt('SUBJECT', { ok: true }, '1d', {});
+      const verified = tokensService.verify<{ ok: boolean }>('SUBJECT', jwt);
+      expect(verified.ok).toBeTruthy();
+    });
+  });
+
+  describe('decode', () => {
+    it('decodes a JWT', async () => {
+      const jwt = tokensService.signJwt('SUBJECT', { ok: true }, '1d', {});
+      const verified = tokensService.decode(jwt);
+      expect(verified).toBeDefined();
+    });
+    it('decodes a JWT and gets data', async () => {
+      const jwt = tokensService.signJwt('SUBJECT', { ok: true }, '1d', {});
+      const verified = tokensService.decode<{ ok: boolean }>(jwt);
+      expect(verified.ok).toBeTruthy();
+    });
+    it('decodes a JWT and with a wrong secret', async () => {
+      const jwt = sign({ ok: true }, 'another-secret');
+      const verified = tokensService.decode<{ ok: boolean }>(jwt);
+      expect(verified.ok).toBeTruthy();
+    });
+  });
+});