[TEST] Add functional test to ensure working -n (--no-interactive) mode

EditorConfigCLI will ask the user to continue, if more than 500 files are found.
This needs to get confirmed interactively.

When --no-interaction (-n) is given, this check should get bypassed. Then, all files
no matter how much, will get processed.

Closes: #20

README.md

@@ -145,7 +145,7 @@ The ``ec`` binary supports the following options:
 | ``--compact``              | ``-c``   | Only shows only files with issues, not the issues itself.                                                                                                                           |
 | ``--uncovered``            | ``-u``   | Lists all files which are not covered by .editorconfig.                                                                                                                             |
 | ``--verbose``              | ``-v``   | Shows additional informations, like detailed info about internal time tracking and which binary files have been skipped.                                                            |
-| ``--no-interaction``       | ``-n``   | Do not ask for confirmation, if more than 500 files found.                                                                                                                          |
+| ``--no-interaction``       | ``-n``   | Do not ask for confirmation, if more than 500 files found and continue scanning.                                                                                                    |
 | ``--no-error-on-exit``     |          | By default ``ec`` returns code 2 when issues occurred. With this option set return code is always 0.                                                                                |
 
 **Tip:** The "usage" section on ``ec``'s help page shows some examples.

src/Application.php

@@ -179,11 +179,9 @@ protected function executing(Input $input, Output $output): int
         }
 
         if ($count > 500 && !$input->getOption('no-interaction') && !$io->confirm('Continue?', false)) {
-            // @codeCoverageIgnoreStart
             $io->writeln('Canceled.');
 
             return $returnValue; // Early return
-            // @codeCoverageIgnoreEnd
         }
 
         if (!empty($this->scanner->getSkippingRules())) {

tests/Functional/EditorConfig/CommandNoInteractionModeTest.php

@@ -0,0 +1,64 @@
+<?php declare(strict_types = 1);
+namespace Armin\EditorconfigCli\Tests\Functional\EditorConfig;
+
+use Armin\EditorconfigCli\Application;
+use Symfony\Component\Console\Tester\CommandTester;
+
+class CommandNoInteractionModeTest extends AbstractTestCase
+{
+    protected $editorConfig = <<<TXT
+root = true
+
+[*]
+insert_final_newline = true
+TXT;
+
+    protected $files = [
+        'invalid.txt' => <<<TXT
+Missing new line in this file.
+TXT,
+    ];
+
+    public function setUp(): void
+    {
+        parent::setUp();
+        // Create 500 valid text files
+        for ($i = 1; $i <= 500; $i++) {
+            file_put_contents($this->workspacePath . '/' . 'valid' . $i . '.txt', 'Test file no. ' . $i . PHP_EOL);
+        }
+    }
+
+    public function testAskForConfirmation(): void
+    {
+        $command = new Application();
+        $command->setAutoExit(false);
+        $commandTester = new CommandTester($command);
+        $commandTester->setInputs(['n']);
+        $commandTester->execute(['-d' => $this->workspacePath]);
+        self::assertStringContainsString('Found 501 files to scan.', $commandTester->getDisplay());
+        self::assertStringContainsString('Canceled.', $commandTester->getDisplay());
+
+        $commandTester = new CommandTester($command);
+        $commandTester->setInputs(['yes']);
+        $commandTester->execute(['-d' => $this->workspacePath]);
+        self::assertSame(2, $commandTester->getStatusCode());
+        self::assertStringContainsString('Found 1 issue in 1 file', $commandTester->getDisplay());
+    }
+
+    public function testSkipAskingForConfirmationInNoInteractionMode(): void
+    {
+        $command = new Application();
+        $command->setAutoExit(false);
+        $commandTester = new CommandTester($command);
+        $commandTester->execute(['-d' => $this->workspacePath, '-n' => true]);
+        self::assertStringContainsString('Found 501 files to scan.', $commandTester->getDisplay());
+        self::assertSame(2, $commandTester->getStatusCode());
+        self::assertStringContainsString('Found 1 issue in 1 file', $commandTester->getDisplay());
+
+        $commandTester = new CommandTester($command);
+        $commandTester->execute(['-d' => $this->workspacePath, '--no-interaction' => true]);
+        self::assertStringContainsString('Found 501 files to scan.', $commandTester->getDisplay());
+        self::assertSame(2, $commandTester->getStatusCode());
+        self::assertStringContainsString('Found 1 issue in 1 file', $commandTester->getDisplay());
+    }
+}