🥇 First commit

test/unit/services/greeter.spec.ts

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+"use strict";
+
+import { Errors, ServiceBroker} from "moleculer";
+import TestService from "../../../services/greeter.service";
+
+describe("Test 'greeter' service", () => {
+	const broker = new ServiceBroker({ logger: false });
+	broker.createService(TestService);
+
+	beforeAll(() => broker.start());
+	afterAll(() => broker.stop());
+
+	describe("Test 'greeter.hello' action", () => {
+
+		it("should return with 'Hello Moleculer'", async () => {
+			const res = await broker.call("greeter.hello");
+			expect(res).toBe("Hello Moleculer");
+		});
+
+	});
+
+	describe("Test 'greeter.welcome' action", () => {
+
+		it("should return with 'Welcome'", async () => {
+			const res = await broker.call("greeter.welcome", { name: "Adam" });
+			expect(res).toBe("Welcome, Adam");
+		});
+
+		it("should reject an ValidationError", async () => {
+			expect.assertions(1);
+			try {
+				await broker.call("greeter.welcome");
+			} catch (err) {
+				expect(err).toBeInstanceOf(Errors.ValidationError);
+			}
+		});
+
+	});
+
+});