prepare test for issue #78 (#79)

* prepare test for issue #78

* handle empty line, fix wrong test from issue #53

* changelog

Author: nadar

CHANGELOG.md

@@ -4,6 +4,10 @@ All notable changes to this project will be documented in this file.
 
 This project adheres to [Semantic Versioning](http://semver.org/).
 
+## 3.3.1 (24. March 2023)
+
++ [#78](https://github.com/nadar/quill-delta-parser/issues/78) Fixed a bug where lists with empty contents would break all output.
+
 ## 3.3.0 (10. March 2023)
 
 + [#77](https://github.com/nadar/quill-delta-parser/pull/77) Allow method chaining for `registerListener()` and `overwriteListener()`.

composer.lock

@@ -49,24 +49,33 @@ public function process(Line $line)
     public function render(Lexer $lexer)
     {
         $isOpen = false;
+        $isEmpty = false;
         $listTag = null;
         foreach ($this->picks() as $pick) {
             $first = $this->getFirstLine($pick);
 
-            // while from first to the pick line and store content in buffer
-            $buffer = null;
-            $first->while(static function (&$index, Line $line) use (&$buffer, $pick) {
-                ++$index;
-                $buffer.= $line->getInput();
-                $line->setDone();
-                if ($index == $pick->line->getIndex()) {
-                    return false;
-                }
-            });
-
             // defines whether this attribute list element is the last one of a list serie.
             $isLast = false;
 
+            // if this is an empty line .... the first attribute contains the list information, otherwise
+            // the first line contains content.
+            if ($first->getAttribute(self::ATTRIBUTE_LIST)) {
+                $isEmpty = true;
+            }
+
+            // while from first to the pick line and store content in buffer
+            $buffer = null;
+            if (!$isEmpty) {
+                $first->while(static function (&$index, Line $line) use (&$buffer, $pick) {
+                    ++$index;
+                    $buffer.= $line->getInput();
+                    $line->setDone();
+                    if ($index == $pick->line->getIndex()) {
+                        return false;
+                    }
+                });
+            }
+
             // go to the next element with endlinew and check if it contains a list type until then
             $hasNextInside = false;
             $pick->line->whileNext(static function (Line $line) use (&$hasNextInside) {
@@ -113,19 +122,23 @@ public function render(Lexer $lexer)
                 }
             });
 
-            $output .= '<li>';
-            $output .= $buffer;
-
-            if ($nextIndent > $pick->line->getAttribute('indent', 0)) {
-                $output .= '<'.$this->getListAttribute($pick).'>'.PHP_EOL;
-            } elseif ($nextIndent < $pick->line->getAttribute('indent', 0)) {
-                $output .= '</li></'.$this->getListAttribute($pick).'></li>'.PHP_EOL;
-                $closeGap = $pick->line->getAttribute('indent', 0) - $nextIndent;
-                if ($closeGap > 1) {
-                    $output .= '</'.$this->getListAttribute($pick).'></li>'.PHP_EOL;
-                }
+            if ($isEmpty) {
+                $output .= '<li></li>';
             } else {
-                $output.= '</li>'.PHP_EOL;
+                $output .= '<li>';
+                $output .= $buffer;
+
+                if ($nextIndent > $pick->line->getAttribute('indent', 0)) {
+                    $output .= '<'.$this->getListAttribute($pick).'>'.PHP_EOL;
+                } elseif ($nextIndent < $pick->line->getAttribute('indent', 0)) {
+                    $output .= '</li></'.$this->getListAttribute($pick).'></li>'.PHP_EOL;
+                    $closeGap = $pick->line->getAttribute('indent', 0) - $nextIndent;
+                    if ($closeGap > 1) {
+                        $output .= '</'.$this->getListAttribute($pick).'></li>'.PHP_EOL;
+                    }
+                } else {
+                    $output.= '</li>'.PHP_EOL;
+                }
             }
 
             // close the opening OL/UL tag if:

src/listener/Lists.php

@@ -20,6 +20,6 @@ class Issue53Test extends DeltaTestCase
 JSON;
 
     public $html = <<<'EOT'
-    <ul><li>Bullet point content</li></ul>
+    <ul><li></li></ul><p>Bullet point content</p>
 EOT;
 }

tests/Issue53Test.php

@@ -0,0 +1,26 @@
+<?php
+namespace nadar\quill\tests;
+
+class Issue53TestFixedTest extends DeltaTestCase
+{
+    public $json = <<<'JSON'
+{"ops":[
+  {
+    "insert": "Bullet point content"
+  },
+  {
+    "attributes": {
+      "list": {
+        "depth": 0,
+        "type": "bullet"
+      }
+    },
+    "insert": "\n"
+  }
+]}
+JSON;
+
+    public $html = <<<'EOT'
+    <ul><li>Bullet point content</li></ul>
+EOT;
+}

tests/Issue53TestFixedTest.php

@@ -0,0 +1,52 @@
+<?php
+
+namespace nadar\quill\tests;
+
+class Issue78Test extends DeltaTestCase
+{
+    public $json = <<<'JSON'
+{
+    "ops": 
+    [
+        {
+            "insert": "JUST A LIST",
+            "attributes": {
+                "bold": true,
+                "color": "#000000",
+                "background": "transparent"
+            }
+        },
+        {
+            "insert": "\n",
+            "attributes": {
+                "align": "center"
+            }
+        },
+        {
+            "insert": "\n\n",
+            "attributes": {
+                "list": "ordered"
+            }
+        },
+        {
+            "insert": "\n"
+        },
+        {
+            "insert": "New title",
+            "attributes": {
+                "bold": true,
+                "color": "#000000",
+                "background": "transparent"
+            }
+        },
+        {
+            "insert": "\n\n"
+        }
+    ]
+}
+JSON;
+
+    public $html = <<<'EOT'
+    <p style="text-align: center;"><span style="color:#000000"><strong>JUST A LIST</strong></span></p><ol><li></li><li></li></ol><p><br></p><p><span style="color:#000000"><strong>New title</strong></span></p><p><br></p>
+EOT;
+}