1 files changed, 39 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/RegExp/S15.10.4.1_A1_T4.js b/js/src/tests/test262/built-ins/RegExp/S15.10.4.1_A1_T4.js
new file mode 100644
index 0000000000..a66ead1e94
--- /dev/null
+++ b/js/src/tests/test262/built-ins/RegExp/S15.10.4.1_A1_T4.js
@@ -0,0 +1,39 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    If pattern is an object R whose [[Class]] property is "RegExp" and flags is undefined, then let P be
+    the pattern used to construct R and let F be the flags used to construct R
+es5id: 15.10.4.1_A1_T4
+description: Pattern is new RegExp and RegExp is new RegExp(pattern,undefined)
+---*/
+
+var __pattern = new RegExp;
+var __re = new RegExp(__pattern, undefined);
+
+assert.sameValue(
+  __re.source,
+  __pattern.source,
+  'The value of __re.source is expected to equal the value of __pattern.source'
+);
+
+assert.sameValue(
+  __re.multiline,
+  __pattern.multiline,
+  'The value of __re.multiline is expected to equal the value of __pattern.multiline'
+);
+
+assert.sameValue(
+  __re.global,
+  __pattern.global,
+  'The value of __re.global is expected to equal the value of __pattern.global'
+);
+
+assert.sameValue(
+  __re.ignoreCase,
+  __pattern.ignoreCase,
+  'The value of __re.ignoreCase is expected to equal the value of __pattern.ignoreCase'
+);
+
+reportCompare(0, 0);