peterflynn/bugTest.html

## bugTest.html
<!doctype html>
<html>
  <head>
    <title>CodeMirror: Bug testcase - marijnh/CodeMirror2</title>
    <link rel="stylesheet" href="../lib/codemirror.css">
    <script src="../lib/codemirror.js"></script>
    <script src="../mode/css/css.js"></script>
    <link rel="stylesheet" href="../doc/docs.css">

    <style type="text/css">
      .CodeMirror {border: 1px solid black;}
    </style>
  </head>
  <body>
    <h1>Bug testcase - marijnh/CodeMirror2</h1>

    <form><textarea id="code" name="code">
div {
    margin: 0;
    padding: 0;
}

.foo {
    color: #f00;
 }

#myDiv {
    display: block;
}</textarea></form>

<p>
<button onclick='bug1()'>Test bug 1</button>
<button onclick='bug2()'>Test bug 2</button>
</p>

<script>
  var editor = CodeMirror.fromTextArea(document.getElementById("code"), {
    lineNumbers: true
  });

  var textToInsert = "\n";
  // var textToInsert = "/* test comment */\n";  // bug repros with "meatier" lines of text, too

  // Inserting on two different lines causes crash on undo()
  function bug1() {
    editor.operation(function () {
        editor.replaceRange(
            textToInsert,
            { line: 5, ch: 0 }
        );
        editor.replaceRange(
            textToInsert,
            { line: 8, ch: 0 }
        );
    });
    editor.undo();
  }

  // Inserting on same line causes text corruption on undo()
  function bug2() {
    editor.operation(function () {
        editor.replaceRange(
            textToInsert,
            { line: 5, ch: 0 }
        );
        editor.replaceRange(
            textToInsert,
            { line: 5, ch: 0 }
        );
    });
    editor.undo();
  }
</script>
  </body>
</html>
	<!doctype html>
	<html>
	<head>
	<title>CodeMirror: Bug testcase - marijnh/CodeMirror2</title>
	<link rel="stylesheet" href="../lib/codemirror.css">
	<script src="../lib/codemirror.js"></script>
	<script src="../mode/css/css.js"></script>
	<link rel="stylesheet" href="../doc/docs.css">

	<style type="text/css">
	.CodeMirror {border: 1px solid black;}
	</style>
	</head>
	<body>
	<h1>Bug testcase - marijnh/CodeMirror2</h1>

	<form><textarea id="code" name="code">
	div {
	margin: 0;
	padding: 0;
	}

	.foo {
	color: #f00;
	}

	#myDiv {
	display: block;
	}</textarea></form>

	<p>
	<button onclick='bug1()'>Test bug 1</button>
	<button onclick='bug2()'>Test bug 2</button>
	</p>

	<script>
	var editor = CodeMirror.fromTextArea(document.getElementById("code"), {
	lineNumbers: true
	});

	var textToInsert = "\n";
	// var textToInsert = "/* test comment */\n"; // bug repros with "meatier" lines of text, too

	// Inserting on two different lines causes crash on undo()
	function bug1() {
	editor.operation(function () {
	editor.replaceRange(
	textToInsert,
	{ line: 5, ch: 0 }
	);
	editor.replaceRange(
	textToInsert,
	{ line: 8, ch: 0 }
	);
	});
	editor.undo();
	}

	// Inserting on same line causes text corruption on undo()
	function bug2() {
	editor.operation(function () {
	editor.replaceRange(
	textToInsert,
	{ line: 5, ch: 0 }
	);
	editor.replaceRange(
	textToInsert,
	{ line: 5, ch: 0 }
	);
	});
	editor.undo();
	}
	</script>
	</body>
	</html>