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/* -*- 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
/*---
defines: [testRegExp, makeExpectedMatch, checkRegExpMatch]
allow_unused: True
---*/
/*
* 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');
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;
}
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]);
assertEq(actual.index, expected.index);
assertEq(actual.input, expected.input);
}
})(this);