Support for test files

.gitignore

@@ -0,0 +1,2 @@
+node_modules
+package-lock.json

index.js

@@ -3,16 +3,57 @@
 'use strict';
 
 const { resolve } = require('path');
-const { spawnSync } = require('child_process');
 
-const readline = () => {
-	const { stdout } = spawnSync(
-		'node',
-		[ resolve('readline.js') ],
-		{ stdio: [ 'inherit', 'pipe', 'ignore' ] });
-	return String(stdout);
+const parseArgs = require('minimist');
+const chalk = require('chalk');
+
+const read = require('./testreader');
+const run = require('./runner');
+
+const args = parseArgs(process.argv.slice(2), {
+	alias: { t: 'test' }
+});
+
+const readTests = () => {
+	if (args.test) {
+		const testfiles = Array.isArray(args.test)
+			? args.test
+			: [ args.test ];
+
+		return Promise.all(testfiles.map(read))
+			.then(x => x.flat());
+	}
+	return Promise.resolve([]);
 };
 
-global.readline = readline;
+const main = tests => {
+	for (const file of args._) {
+		if (tests.length === 0) {
+			// eslint-disable-next-line global-require
+			global.readline = require('./readline');
+			// eslint-disable-next-line global-require
+			require(resolve(file));
+		} else {
+			let n = 0;
+			for (const { input, output: expected } of tests) {
+				n++;
+				const output = run(input.join('\n'), file).trim();
+				if (output !== expected.join('\n')) {
+					console.error(
+						// eslint-disable-next-line indent
+`${chalk.red(`Test #${n} failed`)}
+  Input:
+    ${input.join('\n    ')}
+  Expected output:
+    ${expected.join('\n    ')}
+  Actual output:
+    ${output.split('\n').join('\n    ')}`);
+				}
+			}
+		}
+	}
+};
 
-require(resolve(process.argv[2]));
+readTests().then(main);
+
+// require(resolve(process.argv[2]));

package.json

@@ -24,5 +24,9 @@
   "bugs": {
     "url": "https://github.com/trgwii/CodinGame-CLI/issues"
   },
-  "homepage": "https://github.com/trgwii/CodinGame-CLI#readme"
+  "homepage": "https://github.com/trgwii/CodinGame-CLI#readme",
+  "dependencies": {
+    "chalk": "^2.4.2",
+    "minimist": "^1.2.0"
+  }
 }

readline/index.js

@@ -0,0 +1,14 @@
+'use strict';
+
+const { join } = require('path');
+const { spawnSync } = require('child_process');
+
+const readline = () => {
+	const { stdout } = spawnSync(
+		'node',
+		[ join(__dirname, 'child.js') ],
+		{ stdio: [ 'inherit', 'pipe', 'ignore' ] });
+	return String(stdout);
+};
+
+module.exports = readline;

runner/index.js

@@ -0,0 +1,17 @@
+'use strict';
+
+const { join } = require('path');
+const { spawnSync } = require('child_process');
+
+const run = (input, path) => {
+	const { stdout } = spawnSync(
+		'node',
+		[
+			'-r', join(__dirname, 'setup.js'),
+			path
+		],
+		{ input });
+	return String(stdout);
+};
+
+module.exports = run;

runner/setup.js

@@ -0,0 +1,5 @@
+'use strict';
+
+const { join } = require('path');
+
+global.readline = require(join(__dirname, '..', 'readline'));

testreader/index.js

@@ -0,0 +1,34 @@
+'use strict';
+
+const { createReadStream } = require('fs');
+const { createInterface } = require('readline');
+
+const read = async path => {
+	const rl = createInterface(createReadStream(path));
+	const tests = [
+		{ input: [], output: [] }
+	];
+	let [ current ] = tests;
+	let mode = '';
+	for await (const line of rl) {
+		if (line.trim().toLowerCase() === 'input:') {
+			if (mode === 'output') {
+				const next = { input: [], output: [] };
+				tests.push(next);
+				current = next;
+			}
+			mode = 'input';
+			continue;
+		}
+		if (line.trim().toLowerCase() === 'output:') {
+			mode = 'output';
+			continue;
+		}
+		if (line.length > 0 && mode.length > 0 && !line.startsWith('#')) {
+			current[mode].push(line);
+		}
+	}
+	return tests;
+};
+
+module.exports = read;