update tests to cover

     smarty-php/smarty#396 smarty-php/smarty#397
    smarty-php/smarty#391 smarty-php/smarty#392

UnitTests/TemplateSource/ValueTests/DoubleQuoted/DoubleQuotedStringTest.php

@@ -86,9 +86,20 @@ public function dataTestDoubleQuoted()
      * @expectedException        SmartyCompilerException
      * @expectedExceptionMessage unclosed "{if}" in doubled quoted string
      */
-    public function testtestDoubleQuotedUnclosedBlock_001()
+    public function testDoubleQuotedUnclosedBlock_001()
     {
         $this->smarty->fetch('001_unclosedBlock.tpl');
     }
 
+    /**
+     *
+     * test closed block tag
+     * {"{if true}hello world{/if}"}
+     *
+     */
+    public function testDoubleQuotedClosedBlock_001()
+    {
+        $this->assertEquals('hello world', $this->smarty->fetch('001_closedBlock.tpl'));
+    }
+
 }

UnitTests/TemplateSource/ValueTests/DoubleQuoted/templates/001_closedBlock.tpl

@@ -0,0 +1 @@
+{"{if true}hello world{/if}"}

UnitTests/TemplateSource/ValueTests/DoubleQuoted/templates/001_unclosedBlock.tpl

@@ -1 +1 @@
-{"hello {if true} world"}
+{"{if true} world"}