1 files changed, 47 insertions, 0 deletions
diff --git a/_test/tests/general/general_languagelint.test.php b/_test/tests/general/general_languagelint.test.php
new file mode 100644
index 000000000..c11462640
--- /dev/null
+++ b/_test/tests/general/general_languagelint.test.php
@@ -0,0 +1,47 @@
+<?php
+
+class general_languagelint_test extends DokuWikiTest {
+
+
+    function test_core() {
+        $this->checkFiles(glob(DOKU_INC.'inc/lang/*/*.php'));
+    }
+
+    function test_plugins() {
+        $this->checkFiles(glob(DOKU_INC.'lib/plugins/*/lang/*/*.php'));
+    }
+
+    /**
+     * Run checks over the given PHP language files
+     *
+     * @param $files
+     */
+    private function checkFiles($files){
+        foreach($files as $file){
+            // try to load the file
+            include $file;
+            // check it defines an array
+            $this->assertTrue(is_array($lang), $file);
+            unset($lang);
+
+            $this->checkUgly($file);
+        }
+    }
+
+    /**
+     * Checks if the file contains any ugly things like leading whitespace, BOM or trailing
+     * PHP closing mark
+     *
+     * @param $file
+     * @throws Exception
+     */
+    private function checkUgly($file){
+        $content = rtrim(file_get_contents($file));
+        if(substr($content,0,5) != '<?php')
+            throw new Exception("$file does not start with '<?php' - check for BOM");
+
+        if(substr($content,-2) == '?>')
+            throw new Exception("$file ends with '?>' - remove it!");
+    }
+
+}