Tweaked parser tests

Author: GrahamCampbell

tests/Dotenv/ParserTest.php

@@ -15,6 +15,11 @@ public function testQuotesParse()
         $this->assertSame(['FOO', "BAR  \n"], Parser::parse("FOO=\"BAR  \n\""));
     }
 
+    public function testWhitespaceParse()
+    {
+        $this->assertSame(['FOO', "\n"], Parser::parse("FOO=\"\n\""));
+    }
+
     public function testExportParse()
     {
         $this->assertSame(['FOO', 'bar baz'], Parser::parse('export FOO="bar baz"'));
@@ -49,15 +54,16 @@ public function testParseInvalidName()
 
     /**
      * @expectedException \Dotenv\Exception\InvalidFileException
-     * @expectedExceptionMessageRegExp /Failed to parse dotenv file due to a quote parsing error.+/
+     * @expectedExceptionMessage Failed to parse dotenv file due to a quote parsing error (PREG_BACKTRACK_LIMIT_ERROR). Failed at ["iiiiviiiixiiiiviiii\n"].
      */
     public function testParserFailsWithException()
     {
-        $default = 1000000;
         $limit = (int) ini_get('pcre.backtrack_limit');
-        if($limit != $default) {
-            $this->markTestIncomplete();
+
+        if ($limit > 1000000) {
+            $this->markTestSkipped('System pcre.backtrack_limit too large.');
         }
+
         Parser::parse('FOO_BAD="iiiiviiiixiiiiviiii\\n"');
     }
 }