Java Assert assertPasswordMeetsRequirements(String password, boolean expected)

Description

assert Password Meets Requirements

License

Open Source License

Declaration

private static void assertPasswordMeetsRequirements(String password, boolean expected) 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

public class Main {
    private static void assertPasswordMeetsRequirements(String password, boolean expected) {
        boolean actual = passwordMeetsRequirements(password);
        String quotedPassword = (password == null) ? "null" : "\"" + password + "\"";
        String output = "passwordMeetsRequirements(" + quotedPassword + ") = " + actual;
        if (actual == expected) {
            output += " (expected)";
        } else {/*from  ww  w. j  a v  a 2s.  c om*/
            output += ", expected " + expected + ". NOOOOOOOOOOOOOOOOOOOOOOOOOO!";
        }
        System.out.println(output);
    }

    /**
     * Checks to see if the supplied password meets the following requirements:
     *   Must be between 8 and 25 characters long
     *   Contains no whitespace
     *   Contains no slashes "/" "\"
     *   Contains at least three of the following:
     *     * lower case letter
     *     * upper case letter
     *     * digit
     *     * other character
     *
     * @param password
     * @return true if the password meets the requirements, false otherwise
     */
    public static boolean passwordMeetsRequirements(String password) {
        if (password == null) {
            return false;
        }
        if (password.length() < 8 || password.length() > 25) {
            return false;
        }
        boolean containsLowerCase = false;
        boolean containsUpperCase = false;
        boolean containsDigit = false;
        boolean containsWhitespace = false;
        boolean containsSlash = false;
        boolean containsOther = false;
        for (int i = 0; i < password.length(); i++) {
            char single = password.charAt(i);
            if (Character.isLowerCase(single)) {
                containsLowerCase = true;
            } else if (Character.isUpperCase(single)) {
                containsUpperCase = true;
            } else if (Character.isDigit(single)) {
                containsDigit = true;
            } else if (Character.isWhitespace(single)) {
                containsWhitespace = true;
            } else if (single == '/' || single == '\\') {
                containsSlash = true;
            } else {
                containsOther = true;
            }
        }
        if (containsWhitespace || containsSlash) {
            return false;
        }
        int varietyCount = 0;
        varietyCount += containsLowerCase ? 1 : 0;
        varietyCount += containsUpperCase ? 1 : 0;
        varietyCount += containsDigit ? 1 : 0;
        varietyCount += containsOther ? 1 : 0;
        return (varietyCount >= 3);
    }
}

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