JavaScript Tests - copy regular expression testing utilities from RegExp to extensions subsuite, bug 370585, not part of the build

js/tests/ecma_3/extensions/shell.js

@@ -1 +1,266 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is mozilla.org code.
+ *
+ * The Initial Developer of the Original Code is
+ * Netscape Communications Corporation.
+ * Portions created by the Initial Developer are Copyright (C) 1998
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *   pschwartau@netscape.com
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+/*
+ * Date: 07 February 2001
+ *
+ * Functionality common to RegExp testing -
+ */
+//-----------------------------------------------------------------------------
+
 gTestsubsuite = 'extensions';
+
+var MSG_PATTERN = '\nregexp = ';
+var MSG_STRING = '\nstring = ';
+var MSG_EXPECT = '\nExpect: ';
+var MSG_ACTUAL = '\nActual: ';
+var ERR_LENGTH = '\nERROR !!! match arrays have different lengths:';
+var ERR_MATCH = '\nERROR !!! regexp failed to give expected match array:';
+var ERR_NO_MATCH = '\nERROR !!! regexp FAILED to match anything !!!';
+var ERR_UNEXP_MATCH = '\nERROR !!! regexp MATCHED when we expected it to fail !!!';
+var CHAR_LBRACKET = '[';
+var CHAR_RBRACKET = ']';
+var CHAR_QT_DBL = '"';
+var CHAR_QT = "'";
+var CHAR_NL = '\n';
+var CHAR_COMMA = ',';
+var CHAR_SPACE = ' ';
+var TYPE_STRING = typeof 'abc';
+
+
+
+function testRegExp(statuses, patterns, strings, actualmatches, expectedmatches)
+{
+  var status = '';
+  var pattern = new RegExp();
+  var string = '';
+  var actualmatch = new Array();
+  var expectedmatch = new Array();
+  var state = '';
+  var lActual = -1;
+  var lExpect = -1;
+
+
+  for (var i=0; i != patterns.length; i++)
+  {
+    status = statuses[i];
+    pattern = patterns[i];
+    string = strings[i];
+    actualmatch=actualmatches[i];
+    expectedmatch=expectedmatches[i];
+    state = getState(status, pattern, string);
+
+    description = status;
+
+    if(actualmatch)
+    {
+      actual = formatArray(actualmatch);
+      if(expectedmatch)
+      {
+        // expectedmatch and actualmatch are arrays -
+        lExpect = expectedmatch.length;
+        lActual = actualmatch.length;
+
+        var expected = formatArray(expectedmatch);
+
+        if (lActual != lExpect)
+        {
+          reportCompare(lExpect, lActual,
+                        state + ERR_LENGTH +
+                        MSG_EXPECT + expected +
+                        MSG_ACTUAL + actual +
+                        CHAR_NL
+	    );
+          continue;
+        }
+
+        // OK, the arrays have same length -
+        if (expected != actual)
+        {
+          reportCompare(expected, actual,
+                        state + ERR_MATCH +
+                        MSG_EXPECT + expected +
+                        MSG_ACTUAL + actual +
+                        CHAR_NL
+	    );
+        }
+        else
+        {
+          reportCompare(expected, actual, state)
+	    }
+
+      }
+      else //expectedmatch is null - that is, we did not expect a match -
+      {
+        expected = expectedmatch;
+        reportCompare(expected, actual,
+                      state + ERR_UNEXP_MATCH +
+                      MSG_EXPECT + expectedmatch +
+                      MSG_ACTUAL + actual +
+                      CHAR_NL
+	  );
+      }
+
+    }
+    else // actualmatch is null
+    {
+      if (expectedmatch)
+      {
+        actual = actualmatch;
+        reportCompare(expected, actual,
+                      state + ERR_NO_MATCH +
+                      MSG_EXPECT + expectedmatch +
+                      MSG_ACTUAL + actualmatch +
+                      CHAR_NL
+	  );
+      }
+      else // we did not expect a match
+      {
+        // Being ultra-cautious. Presumably expectedmatch===actualmatch===null
+        expected = expectedmatch;
+        actual   = actualmatch;
+        reportCompare (expectedmatch, actualmatch, state);
+      }
+    }
+  }
+}
+
+
+function getState(status, pattern, string)
+{
+  /*
+   * Escape \n's, etc. to make them LITERAL in the presentation string.
+   * We don't have to worry about this in |pattern|; such escaping is
+   * done automatically by pattern.toString(), invoked implicitly below.
+   *
+   * One would like to simply do: string = string.replace(/(\s)/g, '\$1').
+   * However, the backreference $1 is not a literal string value,
+   * so this method doesn't work.
+   *
+   * Also tried string = string.replace(/(\s)/g, escape('$1'));
+   * but this just inserts the escape of the literal '$1', i.e. '%241'.
+   */
+  string = string.replace(/\n/g, '\\n');
+  string = string.replace(/\r/g, '\\r');
+  string = string.replace(/\t/g, '\\t');
+  string = string.replace(/\v/g, '\\v');
+  string = string.replace(/\f/g, '\\f');
+
+  return (status + MSG_PATTERN + pattern + MSG_STRING + singleQuote(string));
+}
+
+
+/*
+ * If available, arr.toSource() gives more detail than arr.toString()
+ *
+ * var arr = Array(1,2,'3');
+ *
+ * arr.toSource()
+ * [1, 2, "3"]
+ *
+ * arr.toString()
+ * 1,2,3
+ *
+ * But toSource() doesn't exist in Rhino, so use our own imitation, below -
+ *
+ */
+function formatArray(arr)
+{
+  try
+  {
+    return arr.toSource();
+  }
+  catch(e)
+  {
+    return toSource(arr);
+  }
+}
+
+
+/*
+ * Imitate SpiderMonkey's arr.toSource() method:
+ *
+ * a) Double-quote each array element that is of string type
+ * b) Represent |undefined| and |null| by empty strings
+ * c) Delimit elements by a comma + single space
+ * d) Do not add delimiter at the end UNLESS the last element is |undefined|
+ * e) Add square brackets to the beginning and end of the string
+ */
+function toSource(arr)
+{
+  var delim = CHAR_COMMA + CHAR_SPACE;
+  var elt = '';
+  var ret = '';
+  var len = arr.length;
+
+  for (i=0; i<len; i++)
+  {
+    elt = arr[i];
+
+    switch(true)
+    {
+    case (typeof elt === TYPE_STRING) :
+      ret += doubleQuote(elt);
+      break;
+
+    case (elt === undefined || elt === null) :
+      break; // add nothing but the delimiter, below -
+
+    default:
+      ret += elt.toString();
+    }
+
+    if ((i < len-1) || (elt === undefined))
+      ret += delim;
+  }
+
+  return  CHAR_LBRACKET + ret + CHAR_RBRACKET;
+}
+
+
+function doubleQuote(text)
+{
+  return CHAR_QT_DBL + text + CHAR_QT_DBL;
+}
+
+
+function singleQuote(text)
+{
+  return CHAR_QT + text + CHAR_QT;
+}
+