Add test for compat value of text-justify
See https://github.com/w3c/csswg-drafts/issues/6156
diff --git a/css/css-text/parsing/text-justify-computed-legacy.html b/css/css-text/parsing/text-justify-computed-legacy.html
new file mode 100644
index 0000000..ba47bd4
--- /dev/null
+++ b/css/css-text/parsing/text-justify-computed-legacy.html
@@ -0,0 +1,18 @@
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="utf-8">
+<title>CSS Text: getComputedStyle().textJustify distribute</title>
+<link rel="help" href="https://www.w3.org/TR/css-text-3/#propdef-text-justify">
+<meta name="assert" content="text-justify: distribute computed value (or is parse-time aliased with) 'inter-character'.">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/css/support/computed-testcommon.js"></script>
+</head>
+<body>
+<div id="target"></div>
+<script>
+test_computed_value("text-justify", "distribute", "inter-character");
+</script>
+</body>
+</html>
