add writeToFile test

Author: bshaffer

tests/Credentials/ExternalAccountCredentialsTest.php

@@ -612,8 +612,6 @@ public function testExecutableCredentialSourceEnvironmentVars()
             $successJson
         );
 
-        var_dump($command);exit;
-
         if (PHP_OS_FAMILY === 'Windows') {
             // On Windows, wrap the command in DOUBLE quotes and ensure the inner single quotes are safe.
             // We escape the double quotes and dollar signs that Bash needs to see literally.

tests/ExecutableHandler/ExecutableHandlerTest.php

@@ -54,4 +54,13 @@ public function testErrorOutputIsReturnedAsOutput()
         $this->assertEquals(0, $handler('bash -c \'echo "Bad Response." >&2\''));
         $this->assertEquals("Bad Response.\n", $handler->getOutput());
     }
+
+    public function testWriteToFile()
+    {
+        $handler = new ExecutableHandler();
+
+        $tmpFile = tempnam(sys_get_temp_dir(), 'test');
+        $this->assertEquals(0, $handler('bash -c \'echo "Response from File" > ' . $tmpFile . '\''));
+        $this->assertEquals("Response from File\n", file_get_contents($tmpFile));
+    }
 }