From 1b9d32cd58db44c9b4807d96875c1fed060e9b89 Mon Sep 17 00:00:00 2001
From: Zhuk Sergey <seregazhuk88@gmail.com>
Date: Mon, 28 Oct 2019 01:11:49 +0300
Subject: [PATCH] Output stderr of the underlying script

---
 src/Screen/Screen.php       |  3 +++
 tests/Helper/Filesystem.php |  8 ++++++++
 tests/RunScriptTest.php     | 12 ++++++++++++
 3 files changed, 23 insertions(+)

diff --git a/src/Screen/Screen.php b/src/Screen/Screen.php
index 5e26b29..4b65aeb 100644
--- a/src/Screen/Screen.php
+++ b/src/Screen/Screen.php
@@ -75,6 +75,9 @@ public function subscribeToProcessOutput(Process $process): void
         $process->stdout->on('data', static function ($data) {
             echo $data;
         });
+        $process->stderr->on('data', static function ($data) {
+            echo $data;
+        });
     }
 
     public function showSpinner(LoopInterface $loop): void
diff --git a/tests/Helper/Filesystem.php b/tests/Helper/Filesystem.php
index 56fa540..03324b4 100644
--- a/tests/Helper/Filesystem.php
+++ b/tests/Helper/Filesystem.php
@@ -24,6 +24,14 @@ public static function createHelloWorldPHPFile(): string
         return $name;
     }
 
+    public static function createStdErrorPHPFile(): string
+    {
+        $name = self::FIXTURES_DIR . 'test.php';
+        self::createFile($name, '<?php fwrite(STDERR, "Some error");');
+
+        return $name;
+    }
+
     public static function createHelloWorldPHPFileWithSignalsHandling(): string
     {
         $name = self::FIXTURES_DIR . 'test.php';
diff --git a/tests/RunScriptTest.php b/tests/RunScriptTest.php
index e43706f..7cb6118 100644
--- a/tests/RunScriptTest.php
+++ b/tests/RunScriptTest.php
@@ -20,4 +20,16 @@ public function it_runs_a_php_script(): void
         $this->assertStringContainsString("starting `php $scriptToRun`", $output);
         $this->assertStringContainsString('Hello, world', $output);
     }
+
+    /** @test */
+    public function it_outputs_the_script_stderr(): void
+    {
+        $scriptToRun = Filesystem::createStdErrorPHPFile();
+        $watcher = (new WatcherRunner)->run($scriptToRun);
+
+        $this->wait();
+        $output = $watcher->getOutput();
+
+        $this->assertStringContainsString('Some error', $output);
+    }
 }