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Allow _.trim, _.trimLeft, and _.trimRight to remove specified chars.

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John-David Dalton
2014-01-08 23:16:33 -08:00
parent 1dcfdfdb65
commit cb22fb54e8
7 changed files with 741 additions and 411 deletions
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45
test/test.js
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@@ -8051,30 +8051,45 @@
QUnit.module('trim methods');
(function() {
var string = whitespace + 'a b c' + whitespace;
_.forEach(['trim', 'trimLeft', 'trimRight'], function(methodName, index) {
var func = _[methodName];
test('`_.trim` should remove leading and trailing whitespace', 1, function() {
strictEqual(_.trim(string), 'a b c');
var parts = [];
if (index != 2) {
parts.push('leading');
}
if (index != 1) {
parts.push('trailing');
}
parts = parts.join(' and ');
test('`_.' + methodName + '` should remove ' + parts + ' whitespace', 1, function() {
var string = whitespace + 'a b c' + whitespace;
strictEqual(func(string), (index == 2 ? whitespace : '') + 'a b c' + (index == 1 ? whitespace : ''));
});
test('`_.trimLeft` should remove leading whitespace', 1, function() {
strictEqual(_.trimLeft(string), 'a b c' + whitespace);
test('`_.' + methodName + '` should coerce `string` to a string', 1, function() {
var object = { 'toString': function() { return whitespace + 'a b c' + whitespace; } };
strictEqual(func(object), (index == 2 ? whitespace : '') + 'a b c' + (index == 1 ? whitespace : ''));
});
test('`_.trimRight` should remove trailing whitespace', 1, function() {
strictEqual(_.trimRight(string), whitespace + 'a b c');
test('`_.' + methodName + '` should remove ' + parts + ' `chars`', 1, function() {
var string = '-_-a-b-c-_-';
strictEqual(func(string, '_-'), (index == 2 ? '-_-' : '') + 'a-b-c' + (index == 1 ? '-_-' : ''));
});
_.forEach(['trim', 'trimLeft', 'trimRight'], function(methodName) {
var func = _[methodName];
test('`_.' + methodName + '` should coerce `chars` to a string', 1, function() {
var object = { 'toString': function() { return '_-'; } },
string = '-_-a-b-c-_-';
test('`_.' + methodName + '` should return an empty string when provided `null` or `undefined`', 2, function() {
strictEqual(func(null), '');
strictEqual(func(undefined), '');
});
strictEqual(func(string, object), (index == 2 ? '-_-' : '') + 'a-b-c' + (index == 1 ? '-_-' : ''));
});
}());
test('`_.' + methodName + '` should return an empty string when provided `null` or `undefined`', 2, function() {
strictEqual(func(null), '');
strictEqual(func(undefined), '');
});
});
/*--------------------------------------------------------------------------*/