Add a test for CLI commands

jest.config.js

@@ -0,0 +1,6 @@
+/** @type {import('ts-jest/dist/types').InitialOptionsTsJest} */
+module.exports = {
+  preset: 'ts-jest',
+  testEnvironment: 'node',
+  setupFiles: ["dotenv/config"]
+};

package.json

@@ -7,21 +7,26 @@
   "license": "UNLICENSED",
   "devDependencies": {
     "@types/fs-extra": "^9.0.13",
+    "@types/jest": "^27.4.1",
     "@types/js-yaml": "^4.0.5",
     "@types/lodash": "^4.14.182",
     "@types/node": "^17.0.25",
     "@types/yargs": "^17.0.10",
+    "jest": "29.0.0",
+    "ts-jest": "^29.0.2",
+    "dotenv": "^16.3.2",
     "typescript": "^4.6.3"
   },
   "dependencies": {
-    "fs-extra": "^10.1.0",
     "@cerc-io/laconic-sdk": "^0.1.14",
+    "fs-extra": "^10.1.0",
     "js-yaml": "^3.14.1",
     "lodash": "^4.17.21",
     "lodash-clean": "^2.2.3",
     "yargs": "^17.4.1"
   },
   "scripts": {
+    "test": "jest --runInBand --verbose --testPathPattern=test",
     "lint": "eslint .",
     "clean": "rm -rf ./dist",
     "build": "tsc"

test/cli.test.ts

@@ -0,0 +1,28 @@
+import { spawnSync } from 'child_process';
+
+describe('Test laconic CLI commands', () => {
+  beforeAll(async () => {
+    // TODO: Install laconic binary (create symlink in path)
+    // TODO: Create a temp directory to run the tests in and cd into that
+  });
+
+  afterAll(async () => {
+    // TODO: Cleanup temp dir
+  });
+
+  test('laconic', async () => {
+    const result = spawnSync('laconic');
+
+    const output = result.stdout.toString().trim();
+    const errorOutput = result.stderr.toString().trim();
+
+    // Expect error with usage string
+    expect(output).toBe('');
+    expect(errorOutput).toContain('laconic <command>');
+    expect(result.status).toBe(1);
+  });
+
+  describe('laconic <command>', () => {
+    // TODO: Test subcommands
+  });
+});

tsconfig.json

@@ -97,5 +97,7 @@
     /* Completeness */
     // "skipDefaultLibCheck": true,                      /* Skip type checking .d.ts files that are included with TypeScript. */
     "skipLibCheck": true                                 /* Skip type checking all .d.ts files. */
-  }
+  },
+  "include": ["src"],
+  "exclude": ["test"]
 }