SanitizerValidateEmailTest.php

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<?php
 
class SanitizerValidateEmailTest extends PHPUnit_Framework_TestCase {
 
    private function checkEmail( $addr, $expected = true, $msg = '' ) {
        if ( $msg == '' ) {
            $msg = "Testing $addr";
        }
 
        $this->assertEquals(
            $expected,
            Sanitizer::validateEmail( $addr ),
            $msg
        );
    }
 
    private function valid( $addr, $msg = '' ) {
        $this->checkEmail( $addr, true, $msg );
    }
 
    private function invalid( $addr, $msg = '' ) {
        $this->checkEmail( $addr, false, $msg );
    }
 
    public function testEmailWellKnownUserAtHostDotTldAreValid() {
        $this->valid( 'user@example.com' );
        $this->valid( 'user@example.museum' );
    }
 
    public function testEmailWithUpperCaseCharactersAreValid() {
        $this->valid( 'USER@example.com' );
        $this->valid( 'user@EXAMPLE.COM' );
        $this->valid( 'user@Example.com' );
        $this->valid( 'USER@eXAMPLE.com' );
    }
 
    public function testEmailWithAPlusInUserName() {
        $this->valid( 'user+sub@example.com' );
        $this->valid( 'user+@example.com' );
    }
 
    public function testEmailDoesNotNeedATopLevelDomain() {
        $this->valid( "user@localhost" );
        $this->valid( "FooBar@localdomain" );
        $this->valid( "nobody@mycompany" );
    }
 
    public function testEmailWithWhiteSpacesBeforeOrAfterAreInvalids() {
        $this->invalid( " user@host.com" );
        $this->invalid( "user@host.com " );
        $this->invalid( "\tuser@host.com" );
        $this->invalid( "user@host.com\t" );
    }
 
    public function testEmailWithWhiteSpacesAreInvalids() {
        $this->invalid( "User user@host" );
        $this->invalid( "first last@mycompany" );
        $this->invalid( "firstlast@my company" );
    }
 
    public function testEmailWithCommasAreInvalids() {
        $this->invalid( "user,foo@example.org" );
        $this->invalid( "userfoo@ex,ample.org" );
    }
 
    public function testEmailWithHyphens() {
        $this->valid( "user-foo@example.org" );
        $this->valid( "userfoo@ex-ample.org" );
    }
 
    public function testEmailDomainCanNotBeginWithDot() {
        $this->invalid( "user@." );
        $this->invalid( "user@.localdomain" );
        $this->invalid( "user@localdomain." );
        $this->valid( "user.@localdomain" );
        $this->valid( ".@localdomain" );
        $this->invalid( ".@a............" );
    }
 
    public function testEmailWithFunnyCharacters() {
        $this->valid( "\$user!ex{this}@123.com" );
    }
 
    public function testEmailTopLevelDomainCanBeNumerical() {
        $this->valid( "user@example.1234" );
    }
 
    public function testEmailWithoutAtSignIsInvalid() {
        $this->invalid( 'useràexample.com' );
    }
 
    public function testEmailWithOneCharacterDomainIsValid() {
        $this->valid( 'user@a' );
    }
}