🧪 Adds test for read-configuration

Author: ekwoka

package.json

@@ -37,7 +37,7 @@
 		"clean": "npm-run-all clean-dist clean-built",
 		"clean-dist": "rimraf dist",
 		"clean-built": "rimraf built",
-		"test": "env TS_NODE_PROJECT=src/test/tsconfig.json mocha -r ts-node/register --exit src/test/cli.test.ts",
+		"test": "env TS_NODE_PROJECT=src/test/tsconfig.json mocha -r ts-node/register --exit src/test/cli.set-up.test.ts",
 		"test-matrix": "env TS_NODE_PROJECT=src/test/tsconfig.json mocha -r ts-node/register --exit",
 		"test-container-features": "env TS_NODE_PROJECT=src/test/tsconfig.json mocha -r ts-node/register --exit src/test/container-features/*.test.ts",
 		"test-container-features-cli": "env TS_NODE_PROJECT=src/test/tsconfig.json mocha -r ts-node/register --exit src/test/container-features/featuresCLICommands.test.ts",

src/test/cli.set-up.test.ts

@@ -12,7 +12,7 @@ const pkg = require('../../package.json');
 describe('Dev Containers CLI', function () {
 	this.timeout('120s');
 
-	const tmp = path.relative(process.cwd(), path.join(__dirname, 'tmp'));
+	const tmp = path.join(__dirname, 'tmp');
 	const cli = `npx --prefix ${tmp} devcontainer`;
 
 	before('Install', async () => {
@@ -79,7 +79,7 @@ describe('Dev Containers CLI', function () {
 		});
 	});
 
-	describe('Command read-configuration', () => {
+	describe.only('Command read-configuration', () => {
 		it('should succeed and return postAttachCommand from config', async () => {
 
 			const containerId = (await shellExec(`docker run -d alpine:3.17 sleep inf`)).stdout.trim();
@@ -103,6 +103,18 @@ describe('Dev Containers CLI', function () {
 
 			await shellExec(`docker rm -f ${containerId}`);
 		});
+
+		it('should succeed without a workspace folder', async () => {
+
+			await shellExec(`docker build -t devcontainer-set-up-test ${__dirname}/configs/set-up-with-metadata`);
+			const containerId = (await shellExec(`docker run -d devcontainer-set-up-test sleep inf`)).stdout.trim();
+
+			const res = await shellExec(`${cli} read-configuration --include-merged-configuration`, { cwd: `${__dirname}/configs/set-up-with-metadata` });
+			const response = JSON.parse(res.stdout);
+			assert.strictEqual(response.mergedConfiguration.postCreateCommands.length, 1);
+
+			await shellExec(`docker rm -f ${containerId}`);
+		});
 	});
 
 	describe('Command exec', () => {