YUI3 Trim() Unit Tests

gistfile1.txt

var YUITest = require('yuitest');

function trim(str) {
    return str.replace(/^\s+|\s+$/g, '');
}

var testCase = new YUITest.TestCase({

    name: "Trim Unit Tests",
    
    "Trim should remove any trailing spaces": function() {
        YUITest.Assert.areEqual("String", trim("String "), "Trailing space should be removed");
        YUITest.Assert.areEqual("Another", trim("Another "), "Trailing space should be removed");
        YUITest.Assert.areEqual("String", trim("String   "), "All trailing spaces should be removed");
    },

    "Trim should remove any leading spaces": function() {
        YUITest.Assert.areEqual("String", trim(" String"), "Leading space should be removed");
        YUITest.Assert.areEqual("String", trim("   String"), "All leading spaces should be removed");
    },
    
    "Trim should remove leading and trailing spaces if both exist": function() {
        YUITest.Assert.areEqual("String", trim(" String "),
                    "Both leading and trailing space should be removed");
        YUITest.Assert.areEqual("String", trim("   String   "),
                    "All leading and trailing spaces should be removed");
    },
    
    "Trim should remove any type of whitespace": function() {
        YUITest.Assert.areEqual("String", trim(" \n\t String"),
                    "Any kind of whitespace should be trimmed");
        YUITest.Assert.areEqual("String", trim("   String\n"),
                    "Trailing newlines should be trimmed");
    },

    "Trim should not remove whitespace from inside the string": function() {
        var sentence = "A complete sentence with     lots of whitespace.";
        YUITest.Assert.areEqual(sentence, trim(sentence), "Inner space should not be removed");
    }
});

//add the test cases and suites
YUITest.TestRunner.add(testCase);