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diff --git a/js/src/tests/js1_5/LexicalConventions/lexical-001.js b/js/src/tests/js1_5/LexicalConventions/lexical-001.js
new file mode 100644
index 000000000..47d049aaa
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+++ b/js/src/tests/js1_5/LexicalConventions/lexical-001.js
@@ -0,0 +1,149 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+
+/*
+ * Date: 26 November 2000
+ *
+ *SUMMARY: Testing numeric literals that begin with 0.
+ *This test arose from Bugzilla bug 49233.
+ *The best explanation is from jsscan.c:               
+ *
+ *     "We permit 08 and 09 as decimal numbers, which makes
+ *     our behaviour a superset of the ECMA numeric grammar. 
+ *     We might not always be so permissive, so we warn about it."
+ *
+ *Thus an expression 010 will evaluate, as always, as an octal (to 8).
+ *However, 018 will evaluate as a decimal, to 18. Even though the
+ *user began the expression as an octal, he later used a non-octal
+ *digit. We forgive this and assume he intended a decimal. If the
+ *JavaScript "strict" option is set though, we will give a warning.
+ */
+
+//-------------------------------------------------------------------------------------------------
+var BUGNUMBER = '49233';
+var summary = 'Testing numeric literals that begin with 0';
+var statprefix = 'Testing ';
+var quote = "'";
+var asString = new Array();
+var actual = new Array();
+var expect = new Array();
+
+
+  asString[0]='01'
+  actual[0]=01
+  expect[0]=1
+
+  asString[1]='07'
+  actual[1]=07
+  expect[1]=7
+
+  asString[2]='08'
+  actual[2]=08
+  expect[2]=8
+
+  asString[3]='09'
+  actual[3]=09
+  expect[3]=9
+
+  asString[4]='010'
+  actual[4]=010
+  expect[4]=8
+
+  asString[5]='017'
+  actual[5]=017
+  expect[5]=15
+
+  asString[6]='018'
+  actual[6]=018
+  expect[6]=18
+
+  asString[7]='019'
+  actual[7]=019
+  expect[7]=19
+
+  asString[8]='079'
+  actual[8]=079
+  expect[8]=79
+
+  asString[9]='0079'
+  actual[9]=0079
+  expect[9]=79
+
+  asString[10]='099'
+  actual[10]=099
+  expect[10]=99
+
+  asString[11]='0099'
+  actual[11]=0099
+  expect[11]=99
+
+  asString[12]='000000000077'
+  actual[12]=000000000077
+  expect[12]=63
+
+  asString[13]='000000000078'
+  actual[13]=000000000078
+  expect[13]=78
+
+  asString[14]='0000000000770000'
+  actual[14]=0000000000770000
+  expect[14]=258048
+
+  asString[15]='0000000000780000'
+  actual[15]=0000000000780000
+  expect[15]=780000
+
+  asString[16]='0765432198'
+  actual[16]=0765432198
+  expect[16]=765432198
+
+  asString[17]='00076543219800'
+  actual[17]=00076543219800
+  expect[17]=76543219800
+
+  asString[18]='0000001001007'
+  actual[18]=0000001001007
+  expect[18]=262663
+
+  asString[19]='0000001001009'
+  actual[19]=0000001001009
+  expect[19]=1001009
+
+  asString[20]='070'
+  actual[20]=070
+  expect[20]=56
+
+  asString[21]='080'
+  actual[21]=080
+  expect[21]=80
+
+
+
+//-------------------------------------------------------------------------------------------------
+  test();
+//-------------------------------------------------------------------------------------------------
+
+
+function showStatus(msg)
+{
+  return (statprefix  + quote  +  msg  + quote);
+}
+
+
+function test()
+{
+  enterFunc ('test');
+  printBugNumber(BUGNUMBER);
+  printStatus (summary);
+
+
+  for (i=0; i !=asString.length; i++)
+  {
+    reportCompare (expect[i], actual[i], showStatus(asString[i]));
+  }
+
+  exitFunc ('test');
+}