1 files changed, 63 insertions, 0 deletions
diff --git a/dom/svg/test/test_text_2.html b/dom/svg/test/test_text_2.html
new file mode 100644
index 0000000000..380de92dde
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+++ b/dom/svg/test/test_text_2.html
@@ -0,0 +1,63 @@
+<!DOCTYPE html>
+<html xmlns="http://www.w3.org/1999/xhtml">
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=655877
+-->
+<head>
+  <meta charset=UTF-8>
+  <title>Test for Bug 655877</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=655877">Mozilla Bug 655877</a>
+<p id="display"></p>
+<div id="content">
+  <svg width="400" height="200">
+    <text x="100" y="100" style="font: 16px sans-serif">abc אבג 123 דהו defg</text>
+  </svg>
+</div>
+
+<pre id="test">
+<script class="testbody" type="application/javascript">
+SimpleTest.waitForExplicitFinish();
+
+function close(x, y, message) {
+  if (Math.abs(x - y) < 1e-4) {
+    ok(true, message);
+  } else {
+    // Use is() so that the difference is actually printed in the error message
+    is(x, y, message);
+  }
+}
+
+function runTest() {
+  var text = document.querySelector("text");
+
+  // there are only 20 addressable characters
+  is(text.getNumberOfChars(), 20, "getNumberOfChars");
+
+  var sum, total = text.getComputedTextLength();
+
+  close(text.getSubStringLength(0, 20), total, "getSubStringLength all");
+
+  // add the advance of each glyph
+  sum = 0;
+  for (var i = 0; i < 20; i++) {
+    sum += text.getSubStringLength(i, 1);
+  }
+  close(sum, total, "sum getSubStringLength 1");
+
+  // split the text up into three chunks and add them together
+  close(text.getSubStringLength(0, 6) +
+        text.getSubStringLength(6, 8) +
+        text.getSubStringLength(14, 6), total, "sum getSubStringLength 2");
+
+  SimpleTest.finish();
+}
+
+window.addEventListener("load", runTest);
+</script>
+</pre>
+</body>
+</html>