Add missing file

Author: exussum12

tests/FileParserTest.php

@@ -0,0 +1,16 @@
+<?php
+namespace exussum12\CoverageChecker\tests;
+
+use exussum12\CoverageChecker\FileParser;
+use PHPUnit\Framework\TestCase;
+
+class FileParserTest extends TestCase
+{
+    public function testNoResultFromAst()
+    {
+        $badCode = "<?php badCode";
+        $fileParser = new FileParser($badCode);
+
+        $this->assertSame([], $fileParser->getClassLimits());
+    }
+}