feat: add vitest setup and knock client constructor tests

package.json

@@ -26,14 +26,17 @@
     "lint": "tslint -p tsconfig.json -c tslint.json",
     "prettier": "prettier \"src/**/*.{js,ts,tsx}\" --check",
     "format": "prettier \"src/**/*.{js,ts,tsx}\" --write",
+    "test": "vitest",
+    "coverage": "vitest run --coverage",
     "prepublishOnly": "npm run build"
   },
   "devDependencies": {
     "@types/node": "^15.0.1",
     "@types/pluralize": "0.0.29",
     "prettier": "2.2.1",
     "tslint": "6.1.3",
-    "typescript": "^5.3.3"
+    "typescript": "^5.3.3",
+    "vitest": "^1.2.1"
   },
   "dependencies": {
     "jose": "^5.2.0"

test/knock.test.ts

@@ -0,0 +1,24 @@
+import { describe, expect, test } from "vitest";
+import { Knock } from "../src/knock";
+
+describe("it can create a Knock client", () => {
+  test("it sets configuration values", () => {
+    const knock = new Knock("sk_test_12345", {
+      host: "http://test.knock.app",
+    });
+
+    expect(knock.key).toBe("sk_test_12345");
+    expect(knock.host).toBe("http://test.knock.app");
+  });
+
+  test("it defaults to reading the api key from env vars", () => {
+    process.env.KNOCK_API_KEY = "sk_test_12345";
+    const knock = new Knock();
+    expect(knock.key).toBe("sk_test_12345");
+    delete process.env.KNOCK_API_KEY;
+  });
+
+  test("it throws an error if no api key is provided", () => {
+    expect(() => new Knock(undefined)).toThrowError();
+  });
+});

vitest.config.mts

@@ -0,0 +1,6 @@
+import { defineConfig } from "vitest/config";
+
+// Docs: https://vitest.dev/config/
+export default defineConfig({
+  test: {},
+});