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diff --git a/tests/auto/qscriptv8testsuite/tests/str-to-num.js b/tests/auto/qscriptv8testsuite/tests/str-to-num.js
new file mode 100644
index 0000000..907b8a4
--- /dev/null
+++ b/tests/auto/qscriptv8testsuite/tests/str-to-num.js
@@ -0,0 +1,158 @@
+// Copyright 2008 Google Inc. All Rights Reserved.
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+//       notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+//       copyright notice, this list of conditions and the following
+//       disclaimer in the documentation and/or other materials provided
+//       with the distribution.
+//     * Neither the name of Google Inc. nor the names of its
+//       contributors may be used to endorse or promote products derived
+//       from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+function toNumber(val) {
+  return Number(val);
+}
+
+// assertEquals(, toNumber());
+
+
+assertEquals(123, toNumber(" 123"));
+assertEquals(123, toNumber("\n123"));
+assertEquals(123, toNumber("\r123"));
+assertEquals(123, toNumber("\t123"));
+assertEquals(123, toNumber("\f123"));
+
+assertEquals(123, toNumber("123 "));
+assertEquals(123, toNumber("123\n"));
+assertEquals(123, toNumber("123\r"));
+assertEquals(123, toNumber("123\t"));
+assertEquals(123, toNumber("123\f"));
+
+assertEquals(123, toNumber(" 123 "));
+assertEquals(123, toNumber("\n123\n"));
+assertEquals(123, toNumber("\r123\r"));
+assertEquals(123, toNumber("\t123\t"));
+assertEquals(123, toNumber("\f123\f"));
+
+assertTrue(isNaN(toNumber(" NaN ")));
+assertEquals(Infinity,  toNumber(" Infinity ") ," Infinity");
+assertEquals(-Infinity, toNumber(" -Infinity "));
+assertEquals(Infinity,  toNumber(" +Infinity "), " +Infinity");
+assertEquals(Infinity,  toNumber("Infinity ") ,"Infinity");
+assertEquals(-Infinity, toNumber("-Infinity "));
+assertEquals(Infinity,  toNumber("+Infinity "), "+Infinity");
+
+assertEquals(0,  toNumber("0"));
+assertEquals(0,  toNumber("+0"));
+assertEquals(-0, toNumber("-0"));
+
+assertEquals(1,  toNumber("1"));
+assertEquals(1,  toNumber("+1"));
+assertEquals(-1, toNumber("-1"));
+
+assertEquals(2,  toNumber("2"));
+assertEquals(2,  toNumber("+2"));
+assertEquals(-2, toNumber("-2"));
+
+assertEquals(3.1415926,  toNumber("3.1415926"));
+assertEquals(3.1415926,  toNumber("+3.1415926"));
+assertEquals(-3.1415926, toNumber("-3.1415926"));
+
+assertEquals(5,  toNumber("5."));
+assertEquals(5,  toNumber("+5."));
+assertEquals(-5, toNumber("-5."));
+
+assertEquals(500,   toNumber("5e2"));
+assertEquals(500,   toNumber("+5e2"));
+assertEquals(-500,  toNumber("-5e2"));
+assertEquals(500,   toNumber("5e+2"));
+assertEquals(500,   toNumber("+5e+2"));
+assertEquals(-500,  toNumber("-5e+2"));
+assertEquals(0.05,  toNumber("5e-2"));
+assertEquals(0.05,  toNumber("+5e-2"));
+assertEquals(-0.05, toNumber("-5e-2"));
+
+assertEquals(0.00001,   toNumber(".00001"));
+assertEquals(0.00001,   toNumber("+.00001"));
+assertEquals(-0.00001,  toNumber("-.00001"));
+assertEquals(1,         toNumber(".00001e5"));
+assertEquals(1,         toNumber("+.00001e5"));
+assertEquals(-1,        toNumber("-.00001e5"));
+assertEquals(1,         toNumber(".00001e+5"));
+assertEquals(1,         toNumber("+.00001e+5"));
+assertEquals(-1,        toNumber("-.00001e+5"));
+assertEquals(0.00001,   toNumber(".001e-2"));
+assertEquals(0.00001,   toNumber("+.001e-2"));
+assertEquals(-0.00001,  toNumber("-.001e-2"));
+
+assertEquals(12340000,   toNumber("1234e4"));
+assertEquals(12340000,   toNumber("+1234e4"));
+assertEquals(-12340000,  toNumber("-1234e4"));
+assertEquals(12340000,   toNumber("1234e+4"));
+assertEquals(12340000,   toNumber("+1234e+4"));
+assertEquals(-12340000,  toNumber("-1234e+4"));
+assertEquals(0.1234,     toNumber("1234e-4"));
+assertEquals(0.1234,     toNumber("+1234e-4"));
+assertEquals(-0.1234,    toNumber("-1234e-4"));
+
+assertEquals(0,  toNumber("0x0"));
+assertEquals(1,  toNumber("0x1"));
+assertEquals(2,  toNumber("0x2"));
+assertEquals(9,  toNumber("0x9"));
+assertEquals(10, toNumber("0xa"));
+assertEquals(11, toNumber("0xb"));
+assertEquals(15, toNumber("0xf"));
+assertEquals(10, toNumber("0xA"));
+assertEquals(11, toNumber("0xB"));
+assertEquals(15, toNumber("0xF"));
+
+assertEquals(0,  toNumber("0X0"));
+assertEquals(9,  toNumber("0X9"));
+assertEquals(10, toNumber("0Xa"));
+assertEquals(10, toNumber("0XA"));
+assertEquals(15, toNumber("0Xf"));
+assertEquals(15, toNumber("0XF"));
+
+assertEquals(0,  toNumber("0x000"));
+assertEquals(9,  toNumber("0x009"));
+assertEquals(10, toNumber("0x00a"));
+assertEquals(10, toNumber("0x00A"));
+assertEquals(15, toNumber("0x00f"));
+assertEquals(15, toNumber("0x00F"));
+
+assertEquals(0, toNumber("00"));
+assertEquals(1, toNumber("01"));
+assertEquals(2, toNumber("02"));
+assertEquals(10, toNumber("010"));
+assertEquals(100, toNumber("0100"));
+assertEquals(100, toNumber("000100"));
+
+assertEquals(Infinity,  toNumber("1e999"), "1e999");
+assertEquals(-Infinity, toNumber("-1e999"));
+assertEquals(0,         toNumber("1e-999"));
+assertEquals(0,         toNumber("-1e-999"));
+assertEquals(Infinity,  1 / toNumber("1e-999"), "1e-999");
+assertEquals(-Infinity, 1 / toNumber("-1e-999"));
+
+assertTrue(isNaN(toNumber("junk")), "junk");
+assertTrue(isNaN(toNumber("100 junk")), "100 junk");
+assertTrue(isNaN(toNumber("0x100 junk")), "0x100 junk");
+assertTrue(isNaN(toNumber("100.0 junk")), "100.0 junk");
+assertTrue(isNaN(toNumber(".1e4 junk")), ".1e4 junk");
+assertTrue(isNaN(toNumber("Infinity junk")), "Infinity junk");