Merge pull request #100 from stronk7/boilerplate_sniff_and_empty_files

Avoid PHP error with BoilerplateComment and empty files

Author: junpataleta

moodle/Sniffs/Files/BoilerplateCommentSniff.php

@@ -75,7 +75,7 @@ public function process(File $file, $stackptr) {
         // Note that the opening PHP tag includes one newline.
         $numnewlines = 0;
         for ($i = $stackptr + 1; $i <= $stackptr + 5; ++$i) {
-            if ($tokens[$i]['code'] == T_WHITESPACE && $tokens[$i]['content'] == "\n") {
+            if (isset($tokens[$i]) && $tokens[$i]['code'] == T_WHITESPACE && $tokens[$i]['content'] == "\n") {
                 $numnewlines++;
             } else {
                 break;

moodle/Tests/FilesBoilerPlateCommentTest.php

@@ -92,6 +92,19 @@ public function test_moodle_files_boilerplatecomment_short() {
         $this->verify_cs_results();
     }
 
+    public function test_moodle_files_boilerplatecomment_short_empty() {
+        $this->set_standard('moodle');
+        $this->set_sniff('moodle.Files.BoilerplateComment');
+        $this->set_fixture(__DIR__ . '/fixtures/files/boilerplatecomment/short_empty.php');
+
+        $this->set_errors([
+            1 => 'FileTooShort',
+        ]);
+        $this->set_warnings([]);
+
+        $this->verify_cs_results();
+    }
+
     public function test_moodle_files_boilerplatecomment_wrongline() {
         $this->set_standard('moodle');
         $this->set_sniff('moodle.Files.BoilerplateComment');

moodle/Tests/fixtures/files/boilerplatecomment/short_empty.php

@@ -0,0 +1 @@
+<?php