regex for pattern 00501 - 99999

test-zipcode-regex.js

var myTest = {

    // Attempted test for pattern accepting anything 00501 - 999999
    pattern: /^(0050[1-9]|005[1-9][0-9]|00[6-9][0-9]{2}|0[1-9]{4}|[1-9][0-9]{4})$/,

    // Some sample good string
    good: ['00501', '00502', '00509', '00590', '00599', '00600', '00699', '09999', '12345', '54321'],

    // Some sample bad strings
    bad: ['', '0', '12', '300', '900', '5555', '00500', '00499', '00500'],

    // A test that echoes on a bad string
    echoOnFail: function(x) {
        if (!this.pattern.test(x)) {
            console.log('Unexpected fail: ', x);
        }
    },

    // a test that echoes on a good string
    echoOnPass: function(x) {
        if (this.pattern.test(x)) {
            console.log('Unexpected pass: ', x);
        }
    },

    test: function() {
        this.good.forEach(this.echoOnFail.bind(this));
        this.bad.forEach(this.echoOnPass.bind(this));
    }
};

myTest.test();