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Diffstat (limited to 'vendor/swiftmailer/swiftmailer/tests/unit/Swift/Encoder/Base64EncoderTest.php')
| -rw-r--r-- | vendor/swiftmailer/swiftmailer/tests/unit/Swift/Encoder/Base64EncoderTest.php | 173 |
1 files changed, 173 insertions, 0 deletions
diff --git a/vendor/swiftmailer/swiftmailer/tests/unit/Swift/Encoder/Base64EncoderTest.php b/vendor/swiftmailer/swiftmailer/tests/unit/Swift/Encoder/Base64EncoderTest.php new file mode 100644 index 0000000..b89eb9f --- /dev/null +++ b/vendor/swiftmailer/swiftmailer/tests/unit/Swift/Encoder/Base64EncoderTest.php @@ -0,0 +1,173 @@ +<?php + +class Swift_Encoder_Base64EncoderTest extends \PHPUnit_Framework_TestCase +{ + private $_encoder; + + protected function setUp() + { + $this->_encoder = new Swift_Encoder_Base64Encoder(); + } + + /* + There's really no point in testing the entire base64 encoding to the + level QP encoding has been tested. base64_encode() has been in PHP for + years. + */ + + public function testInputOutputRatioIs3to4Bytes() + { + /* + RFC 2045, 6.8 + + The encoding process represents 24-bit groups of input bits as output + strings of 4 encoded characters. Proceeding from left to right, a + 24-bit input group is formed by concatenating 3 8bit input groups. + These 24 bits are then treated as 4 concatenated 6-bit groups, each + of which is translated into a single digit in the base64 alphabet. + */ + + $this->assertEquals( + 'MTIz', $this->_encoder->encodeString('123'), + '%s: 3 bytes of input should yield 4 bytes of output' + ); + $this->assertEquals( + 'MTIzNDU2', $this->_encoder->encodeString('123456'), + '%s: 6 bytes in input should yield 8 bytes of output' + ); + $this->assertEquals( + 'MTIzNDU2Nzg5', $this->_encoder->encodeString('123456789'), + '%s: 9 bytes in input should yield 12 bytes of output' + ); + } + + public function testPadLength() + { + /* + RFC 2045, 6.8 + + Special processing is performed if fewer than 24 bits are available + at the end of the data being encoded. A full encoding quantum is + always completed at the end of a body. When fewer than 24 input bits + are available in an input group, zero bits are added (on the right) + to form an integral number of 6-bit groups. Padding at the end of + the data is performed using the "=" character. Since all base64 + input is an integral number of octets, only the following cases can + arise: (1) the final quantum of encoding input is an integral + multiple of 24 bits; here, the final unit of encoded output will be + an integral multiple of 4 characters with no "=" padding, (2) the + final quantum of encoding input is exactly 8 bits; here, the final + unit of encoded output will be two characters followed by two "=" + padding characters, or (3) the final quantum of encoding input is + exactly 16 bits; here, the final unit of encoded output will be three + characters followed by one "=" padding character. + */ + + for ($i = 0; $i < 30; ++$i) { + $input = pack('C', rand(0, 255)); + $this->assertRegExp( + '~^[a-zA-Z0-9/\+]{2}==$~', $this->_encoder->encodeString($input), + '%s: A single byte should have 2 bytes of padding' + ); + } + + for ($i = 0; $i < 30; ++$i) { + $input = pack('C*', rand(0, 255), rand(0, 255)); + $this->assertRegExp( + '~^[a-zA-Z0-9/\+]{3}=$~', $this->_encoder->encodeString($input), + '%s: Two bytes should have 1 byte of padding' + ); + } + + for ($i = 0; $i < 30; ++$i) { + $input = pack('C*', rand(0, 255), rand(0, 255), rand(0, 255)); + $this->assertRegExp( + '~^[a-zA-Z0-9/\+]{4}$~', $this->_encoder->encodeString($input), + '%s: Three bytes should have no padding' + ); + } + } + + public function testMaximumLineLengthIs76Characters() + { + /* + The encoded output stream must be represented in lines of no more + than 76 characters each. All line breaks or other characters not + found in Table 1 must be ignored by decoding software. + */ + + $input = + 'abcdefghijklmnopqrstuvwxyz'. + 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'. + '1234567890'. + 'abcdefghijklmnopqrstuvwxyz'. + 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'. + '1234567890'. + 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'; + + $output = + 'YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXpBQk'.//38 + 'NERUZHSElKS0xNTk9QUVJTVFVWV1hZWjEyMzQ1'."\r\n".//76 * + 'Njc4OTBhYmNkZWZnaGlqa2xtbm9wcXJzdHV2d3'.//38 + 'h5ekFCQ0RFRkdISUpLTE1OT1BRUlNUVVZXWFla'."\r\n".//76 * + 'MTIzNDU2Nzg5MEFCQ0RFRkdISUpLTE1OT1BRUl'.//38 + 'NUVVZXWFla'; //48 + + $this->assertEquals( + $output, $this->_encoder->encodeString($input), + '%s: Lines should be no more than 76 characters' + ); + } + + public function testMaximumLineLengthCanBeSpecified() + { + $input = + 'abcdefghijklmnopqrstuvwxyz'. + 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'. + '1234567890'. + 'abcdefghijklmnopqrstuvwxyz'. + 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'. + '1234567890'. + 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'; + + $output = + 'YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXpBQk'.//38 + 'NERUZHSElKS0'."\r\n".//50 * + 'xNTk9QUVJTVFVWV1hZWjEyMzQ1Njc4OTBhYmNk'.//38 + 'ZWZnaGlqa2xt'."\r\n".//50 * + 'bm9wcXJzdHV2d3h5ekFCQ0RFRkdISUpLTE1OT1'.//38 + 'BRUlNUVVZXWF'."\r\n".//50 * + 'laMTIzNDU2Nzg5MEFCQ0RFRkdISUpLTE1OT1BR'.//38 + 'UlNUVVZXWFla'; //50 * + + $this->assertEquals( + $output, $this->_encoder->encodeString($input, 0, 50), + '%s: Lines should be no more than 100 characters' + ); + } + + public function testFirstLineLengthCanBeDifferent() + { + $input = + 'abcdefghijklmnopqrstuvwxyz'. + 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'. + '1234567890'. + 'abcdefghijklmnopqrstuvwxyz'. + 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'. + '1234567890'. + 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'; + + $output = + 'YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXpBQk'.//38 + 'NERUZHSElKS0xNTk9QU'."\r\n".//57 * + 'VJTVFVWV1hZWjEyMzQ1Njc4OTBhYmNkZWZnaGl'.//38 + 'qa2xtbm9wcXJzdHV2d3h5ekFCQ0RFRkdISUpLT'."\r\n".//76 * + 'E1OT1BRUlNUVVZXWFlaMTIzNDU2Nzg5MEFCQ0R'.//38 + 'FRkdISUpLTE1OT1BRUlNUVVZXWFla'; //67 + + $this->assertEquals( + $output, $this->_encoder->encodeString($input, 19), + '%s: First line offset is 19 so first line should be 57 chars long' + ); + } +} |