From a700b874d3692bc8342199adfb6d3b99f62cc61a Mon Sep 17 00:00:00 2001
From: Eric Stern <eric@ericstern.com>
Date: Wed, 2 Jan 2019 18:50:39 -0800
Subject: [PATCH] Ensure final input of CommandTester works with default

If the final element of `CommandTester::setInputs()` is an empty string (to send the default value), the internal stream the tester uses hits EOF and triggers the `Aborted` exception. This appends an additional EOL to the stream after the `implode` to simulate one final return key, allowing the final input to use the default value when used in the tester's documented style.
---
 Tester/CommandTester.php           |  5 ++++-
 Tests/Tester/CommandTesterTest.php | 25 +++++++++++++++++++++++++
 2 files changed, 29 insertions(+), 1 deletion(-)

diff --git a/Tester/CommandTester.php b/Tester/CommandTester.php
index 131ca9b16..c2d18fa28 100644
--- a/Tester/CommandTester.php
+++ b/Tester/CommandTester.php
@@ -148,7 +148,10 @@ private static function createStream(array $inputs)
     {
         $stream = fopen('php://memory', 'r+', false);
 
-        fwrite($stream, implode(PHP_EOL, $inputs));
+        foreach ($inputs as $input) {
+            fwrite($stream, $input.PHP_EOL);
+        }
+
         rewind($stream);
 
         return $stream;
diff --git a/Tests/Tester/CommandTesterTest.php b/Tests/Tester/CommandTesterTest.php
index 58eb8103f..da5f2e7ae 100644
--- a/Tests/Tester/CommandTesterTest.php
+++ b/Tests/Tester/CommandTesterTest.php
@@ -112,6 +112,31 @@ public function testCommandWithInputs()
         $this->assertEquals(implode('', $questions), $tester->getDisplay(true));
     }
 
+    public function testCommandWithDefaultInputs()
+    {
+        $questions = array(
+            'What\'s your name?',
+            'How are you?',
+            'Where do you come from?',
+        );
+
+        $command = new Command('foo');
+        $command->setHelperSet(new HelperSet(array(new QuestionHelper())));
+        $command->setCode(function ($input, $output) use ($questions, $command) {
+            $helper = $command->getHelper('question');
+            $helper->ask($input, $output, new Question($questions[0], 'Bobby'));
+            $helper->ask($input, $output, new Question($questions[1], 'Fine'));
+            $helper->ask($input, $output, new Question($questions[2], 'France'));
+        });
+
+        $tester = new CommandTester($command);
+        $tester->setInputs(array('', '', ''));
+        $tester->execute(array());
+
+        $this->assertEquals(0, $tester->getStatusCode());
+        $this->assertEquals(implode('', $questions), $tester->getDisplay(true));
+    }
+
     /**
      * @expectedException \RuntimeException
      * @expectedMessage   Aborted