test(cli): add basic cli integration tests

Author: marionebl

@commitlint/cli/cli.js

@@ -0,0 +1,70 @@
+import path from 'path';
+import test from 'ava';
+import execa from 'execa';
+import stream from 'string-to-stream';
+
+const here = path.join.bind(null, __dirname);
+
+const SIMPLE = here('fixtures/simple');
+const EXTENDS_ROOT = here('fixtures/extends-root');
+
+const cli = (input = '', args = [], opts = {}) => {
+	const c = execa(here('cli.js'), args, {
+		capture: ['stdout'],
+		cwd: opts.cwd
+	});
+	stream(input).pipe(c.stdin);
+	return c;
+};
+
+test('should throw when called without [input]', t => {
+	t.throws(cli(), /Expected a raw commit/);
+});
+
+test('should reprint input from stdin', async t => {
+	const actual = await cli('foo: bar');
+	t.true(actual.stdout.includes('foo: bar'));
+});
+
+test('should produce no success output with --quiet flag', async t => {
+	const actual = await cli('foo: bar', ['--quiet']);
+	t.is(actual.stdout, '');
+	t.is(actual.stderr, '');
+});
+
+test('should produce no success output with -q flag', async t => {
+	const actual = await cli('foo: bar', ['-q']);
+	t.is(actual.stdout, '');
+	t.is(actual.stderr, '');
+});
+
+test('should succeed for input from stdin without rules', async t => {
+	const actual = await cli('foo: bar');
+	t.is(actual.code, 0);
+});
+
+test('should fail for input from stdin with rule from rc', async t => {
+	const actual = await t.throws(cli('foo: bar', [], {cwd: SIMPLE}));
+	t.true(actual.stdout.includes('scope must not be one of [foo]'));
+	t.is(actual.code, 1);
+});
+
+test('should fail for input from stdin with rule from js', async t => {
+	const actual = await t.throws(cli('foo: bar', ['--extends', './commitlint'], {cwd: EXTENDS_ROOT}));
+	t.true(actual.stdout.includes('scope must not be one of [foo]'));
+	t.is(actual.code, 1);
+});
+
+test('should produce no error output with --quiet flag', async t => {
+	const actual = await t.throws(cli('foo: bar', ['--quiet'], {cwd: SIMPLE}));
+	t.is(actual.stdout, '');
+	t.is(actual.stderr, '');
+	t.is(actual.code, 1);
+});
+
+test('should produce no error output with -q flag', async t => {
+	const actual = await t.throws(cli('foo: bar', ['-q'], {cwd: SIMPLE}));
+	t.is(actual.stdout, '');
+	t.is(actual.stderr, '');
+	t.is(actual.code, 1);
+});

@commitlint/cli/cli.test.js

@@ -0,0 +1,5 @@
+module.exports = {
+	rules: {
+		'type-enum': [2, 'never', ['foo']]
+	}
+};

@commitlint/cli/fixtures/extends-root/commitlint.js

@@ -0,0 +1,5 @@
+{
+  "rules": {
+    "type-enum": [2, "never", ["foo"]]
+  }
+}

@commitlint/cli/fixtures/simple/.commitlintrc

@@ -8,9 +8,14 @@
   "scripts": {
     "build": "exit 0",
     "clean": "exit 0",
-    "test": "exit 0",
+    "test": "ava",
     "prepublish": "npm test"
   },
+  "ava": {
+    "files": [
+      "cli.test.js"
+    ]
+  },
   "engines": {
     "node": ">=4"
   },
@@ -34,7 +39,7 @@
   "license": "MIT",
   "devDependencies": {
     "ansi-styles": "3.1.0",
-    "ava": "0.18.2",
+    "ava": "^0.18.2",
     "babel-cli": "6.18.0",
     "babel-plugin-add-module-exports": "0.2.1",
     "babel-plugin-istanbul": "4.1.3",
@@ -44,7 +49,7 @@
     "babel-preset-stage-0": "6.16.0",
     "babel-register": "6.24.1",
     "cross-env": "5.0.1",
-    "execa": "0.6.3",
+    "execa": "^0.7.0",
     "globby": "6.1.0",
     "has-ansi": "3.0.0",
     "nyc": "10.3.2",