/* -*- tab-width: 2; 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: 07 February 2001 * * Functionality common to RegExp testing -
*/ //-----------------------------------------------------------------------------
(function(global) {
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';
global.testRegExp = 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');
/* * 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;
}
global.makeExpectedMatch = function makeExpectedMatch(arr, index, input) { var expectedMatch = {
index: index,
input: input,
length: arr.length,
};
for (var i = 0; i < arr.length; ++i)
expectedMatch[i] = arr[i];
return expectedMatch;
}
global.checkRegExpMatch = function checkRegExpMatch(actual, expected) {
assertEq(actual.length, expected.length); for (var i = 0; i < actual.length; ++i)
assertEq(actual[i], expected[i]);
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