Optimize decodeURI/encodeURI tests (#987)

* Move decimalToHexString into harness instead of duplicating it in multiple files

* Optimize decimalToHexString and support numbers greater than 65535

* Replace alternative decimalToHexString function with include for decimalToHexString.js

* Add decimalToHex2String to return the string representation of a two-digit hex-number

* Replace decimalToHex2String with decimalToPercentHexString to return the percent hex-encoded string of a two-digit hex-number

* Replace two String.fromCharCode calls with a single call

* Further reduce string concatentations in decodeURI[Component] tests

* Remove unnecessary Test262Error error handling in catch-clauses

* Remove try/catch wrappings in decodeURI/encodeURI tests

1 files changed, 21 insertions, 0 deletions

diff --git a/harness/decimalToHexString.js b/harness/decimalToHexString.js
new file mode 100644
index 000000000..36a2bb5b4
--- /dev/null
+++ b/harness/decimalToHexString.js
@@ -0,0 +1,21 @@
+// Copyright (C) 2017 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+function decimalToHexString(n) {
+  var hex = "0123456789ABCDEF";
+  n >>>= 0;
+  var s = "";
+  while (n) {
+    s = hex[n & 0xf] + s;
+    n >>>= 4;
+  }
+  while (s.length < 4) {
+    s = "0" + s;
+  }
+  return s;
+}
+
+function decimalToPercentHexString(n) {
+  var hex = "0123456789ABCDEF";
+  return "%" + hex[(n >> 4) & 0xf] + hex[n & 0xf];
+}