Parse filenames from a .bcignore file

tests/Kernel/IgnoreFileTest.php

@@ -0,0 +1,21 @@
+<?php
+
+use App\IgnoreFile;
+use Symfony\Bundle\FrameworkBundle\Test\KernelTestCase;
+
+class IgnoreFileTest extends KernelTestCase
+{
+    public function tearDown(): void
+    {
+        @unlink(IgnoreFile::FILENAME);
+
+        parent::tearDown();
+    }
+
+    public function test_it_parses_a_list_of_file_names_from_an_ignore_file(): void
+    {
+        file_put_contents(IgnoreFile::FILENAME, join("\n", ['phpstan.neon.dist']));
+
+        self::assertSame(['phpstan.neon.dist'], IgnoreFile::parse());
+    }
+}