From c90b01ee2ed5f5021c3124ec2260942657e505c3 Mon Sep 17 00:00:00 2001
From: Rich Harris <richard.a.harris@gmail.com>
Date: Thu, 7 Sep 2017 20:56:36 -0400
Subject: [PATCH] add test for #1606

---
 test/cli/index.js                                  |  7 +++++++
 test/cli/samples/config-no-output/_config.js       | 12 ++++++++++++
 test/cli/samples/config-no-output/main.js          |  1 +
 test/cli/samples/config-no-output/rollup.config.js |  6 ++++++
 4 files changed, 26 insertions(+)
 create mode 100644 test/cli/samples/config-no-output/_config.js
 create mode 100644 test/cli/samples/config-no-output/main.js
 create mode 100644 test/cli/samples/config-no-output/rollup.config.js

diff --git a/test/cli/index.js b/test/cli/index.js
index 57d984ec5bf..143ffbd64b7 100644
--- a/test/cli/index.js
+++ b/test/cli/index.js
@@ -100,6 +100,13 @@ describe('cli', () => {
 					} catch (err) {
 						done(err);
 					}
+				} else if (config.test) {
+					try {
+						config.test();
+						done();
+					} catch (err) {
+						done(err);
+					}
 				} else if (
 					sander.existsSync('_expected') &&
 					sander.statSync('_expected').isDirectory()
diff --git a/test/cli/samples/config-no-output/_config.js b/test/cli/samples/config-no-output/_config.js
new file mode 100644
index 00000000000..5dbb39c9eac
--- /dev/null
+++ b/test/cli/samples/config-no-output/_config.js
@@ -0,0 +1,12 @@
+var fs = require('fs');
+var assert = require('assert');
+
+module.exports = {
+	description: 'uses -o from CLI',
+	command: 'rollup -c -o output.js',
+	test() {
+		const output = fs.readFileSync('output.js', 'utf-8');
+		assert.equal(output.trim(), 'console.log(42);');
+		fs.unlinkSync('output.js');
+	}
+};
diff --git a/test/cli/samples/config-no-output/main.js b/test/cli/samples/config-no-output/main.js
new file mode 100644
index 00000000000..6312f0ac1b0
--- /dev/null
+++ b/test/cli/samples/config-no-output/main.js
@@ -0,0 +1 @@
+console.log(42);
\ No newline at end of file
diff --git a/test/cli/samples/config-no-output/rollup.config.js b/test/cli/samples/config-no-output/rollup.config.js
new file mode 100644
index 00000000000..deb82a90ffe
--- /dev/null
+++ b/test/cli/samples/config-no-output/rollup.config.js
@@ -0,0 +1,6 @@
+export default {
+	input: 'main.js',
+	output: {
+		format: 'es'
+	}
+};
\ No newline at end of file