<?php
class UtilTest extends PHPUnit_Framework_TestCase
{
/**
* @before
*/
public function before()
{
ParagonIE_Sodium_Compat::$disableFallbackForUnitTests = true;
}
public function testAbs()
{
$this->assertEquals(0, ParagonIE_Sodium_Core_Util::abs(0));
$this->assertEquals(1, ParagonIE_Sodium_Core_Util::abs(1));
$this->assertEquals(1, ParagonIE_Sodium_Core_Util::abs(-1));
$this->assertEquals(PHP_INT_MAX, ParagonIE_Sodium_Core_Util::abs(PHP_INT_MAX));
$this->assertEquals(PHP_INT_MAX, ParagonIE_Sodium_Core_Util::abs(-PHP_INT_MAX));
for ($i = 0; $i < 1000; ++$i) {
$int = random_int(-PHP_INT_MAX, PHP_INT_MAX);
$this->assertEquals((int) abs($int), ParagonIE_Sodium_Core_Util::abs($int));
}
}
/**
* @covers ParagonIE_Sodium_Compat::base642bin()
* @covers ParagonIE_Sodium_Compat::bin2base64()
* @throws TypeError
* @throws Exception
*/
public function testBase64()
{
for ($i = 0; $i < 100; $i++) {
$bin = $i === 0 ? '' : random_bytes($i);
$b64 = base64_encode($bin);
$b64_ = ParagonIE_Sodium_Compat::bin2base64($bin, SODIUM_BASE64_VARIANT_ORIGINAL);
$this->assertEquals($b64, $b64_);
$bin_ = ParagonIE_Sodium_Compat::base642bin($b64, SODIUM_BASE64_VARIANT_ORIGINAL);
$this->assertEquals($bin, $bin_);
$b64u = strtr(base64_encode($bin), '+/', '-_');
$b64u_ = ParagonIE_Sodium_Compat::bin2base64($bin, SODIUM_BASE64_VARIANT_URLSAFE);
$this->assertEquals($b64u, $b64u_);
$binu_ = ParagonIE_Sodium_Compat::base642bin($b64u, SODIUM_BASE64_VARIANT_URLSAFE);
$this->assertEquals($bin, $binu_);
}
$x = chunk_split(base64_encode(random_bytes(100)));
ParagonIE_Sodium_Compat::base642bin($x, SODIUM_BASE64_VARIANT_ORIGINAL, "\r\n");
}
/**
* @covers ParagonIE_Sodium_Core_Util::bin2hex()
* @covers ParagonIE_Sodium_Core_Util::hex2bin()
* @throws TypeError
* @throws Exception
*/
public function testBin2hex()
{
$data = random_bytes(32);
$this->assertSame(
bin2hex($data),
ParagonIE_Sodium_Core_Util::bin2hex($data),
'bin2hex should be the compatible with PHP'
);
$this->assertSame(
$data,
ParagonIE_Sodium_Core_Util::hex2bin(
ParagonIE_Sodium_Core_Util::bin2hex($data)
),
'bin2hex and hex2bin should decode a string to itself'
);
$this->assertSame(
$data,
ParagonIE_Sodium_Core_Util::hex2bin(
bin2hex($data)
),
'hex2bin should be compatible with PHP'
);
}
/**
* @covers ParagonIE_Sodium_Compat::randombytes_buf()
* @covers ParagonIE_Sodium_Compat::randombytes_random16()
* @covers ParagonIE_Sodium_Compat::randombytes_uniform()
* @throws TypeError
*/
public function testRandombytes()
{
$random = ParagonIE_Sodium_Compat::randombytes_buf(32);
$this->assertSame(32, ParagonIE_Sodium_Core_Util::strlen($random));
$other = ParagonIE_Sodium_Compat::randombytes_buf(32);
$this->assertNotSame($random, $other);
$int = ParagonIE_Sodium_Compat::randombytes_uniform(1000);
$this->assertLessThan(1000, $int, 'Out of bounds (> 1000)');
$this->assertGreaterThan(-1, $int, 'Out of bounds (< 0)');
$int = ParagonIE_Sodium_Compat::randombytes_random16();
$this->assertLessThan(65536, $int, 'Out of bounds (> 65535)');
$this->assertGreaterThan(-1, $int, 'Out of bounds (< 0)');
}
/**
* @covers ParagonIE_Sodium_Core_Util::intArrayToString()
* @covers ParagonIE_Sodium_Core_Util::stringToIntArray()
* @throws TypeError
*/
public function testConversion()
{
$sample = array(80, 97, 114, 97, 103, 111, 110);
$this->assertSame(
'Paragon',
ParagonIE_Sodium_Core_Util::intArrayToString($sample)
);
$this->assertSame(
$sample,
ParagonIE_Sodium_Core_Util::stringToIntArray('Paragon')
);
}
/**
* @covers ParagonIE_Sodium_Core_Util::hashEquals()
* @throws SodiumException
* @throws TypeError
*/
public function testHashEquals()
{
if (PHP_VERSION_ID < 50600) {
for ($i = 0; $i < 65536; ++$i) {
$a = random_bytes(64);
$b = random_bytes(64);
$this->assertFalse(
ParagonIE_Sodium_Core_Util::hashEquals($a, $b),
bin2hex($a) . ' == ' . bin2hex($b) . ' should return false.'
);
}
} else {
$this->markTestSkipped('PHP > 5.6 does not need this test');
}
}
/**
* @covers ParagonIE_Sodium_Core_Util::load_3()
* @throws TypeError
*/
public function testLoad3()
{
$this->assertSame(
8451279,
ParagonIE_Sodium_Core_Curve25519::load_3("\xcf\xf4\x80"),
'Unexpected result from load_3'
);
$this->assertSame(
8516815,
ParagonIE_Sodium_Core_Curve25519::load_3("\xcf\xf4\x81"),
'Verify endianness is correct'
);
$this->assertSame(
8451280,
ParagonIE_Sodium_Core_Curve25519::load_3("\xd0\xf4\x80"),
'Verify endianness is correct'
);
}
/**
* @covers ParagonIE_Sodium_Core_Util::load_4()
* @throws TypeError
*/
public function testLoad4()
{
$this->assertSame(
8451279,
ParagonIE_Sodium_Core_Util::load_4("\xcf\xf4\x80\x00"),
'Unexpected result from load_4'
);
if (PHP_INT_SIZE === 8) {
$this->assertSame(
2163527424,
ParagonIE_Sodium_Core_Util::load_4("\x00\xcf\xf4\x80"),
'Unexpected result from load_4'
);
} else {
$this->assertSame(
-2131439872,
ParagonIE_Sodium_Core_Util::load_4("\x00\xcf\xf4\x80"),
'Unexpected result from load_4'
);
}
}
/**
* @covers ParagonIE_Sodium_Core_Util::load64_le()
* @throws SodiumException
* @throws TypeError
*/
public function testLoad64()
{
if (PHP_INT_SIZE < 8) {
$this->markTestSkipped('Public utility test for load64_le()');
}
$this->assertSame(
8451279,
ParagonIE_Sodium_Core_Util::load64_le("\xcf\xf4\x80\x00\x00\x00\x00\x00"),
'Unexpected result from load64_le'
);
$this->assertSame(
9223372036854775807,
ParagonIE_Sodium_Core_Util::load64_le("\xff\xff\xff\xff\xff\xff\xff\x7f"),
'Unexpected result from load64_le'
);
}
/**
* @covers ParagonIE_Sodium_Core_Util::strlen()
*/
public function testStrlen()
{
$this->assertSame(4, ParagonIE_Sodium_Core_Util::strlen("\xF0\x9D\x92\xB3"));
}
/**
* @covers ParagonIE_Sodium_Core_Util::strlen()
*/
public function testSubstr()
{
$string = str_repeat("\xF0\x9D\x92\xB3", 4);
$this->assertSame(ParagonIE_Sodium_Core_Util::substr($string, 0, 1), "\xF0");
$this->assertSame(ParagonIE_Sodium_Core_Util::substr($string, 1, 1), "\x9D");
$this->assertSame(ParagonIE_Sodium_Core_Util::substr($string, 2, 1), "\x92");
$this->assertSame(ParagonIE_Sodium_Core_Util::substr($string, 3, 1), "\xB3");
$this->assertSame(ParagonIE_Sodium_Core_Util::substr($string, 0, 2), "\xF0\x9D");
$this->assertSame(ParagonIE_Sodium_Core_Util::substr($string, 2, 2), "\x92\xB3");
}
/**
* @covers ParagonIE_Sodium_Core_Util::store64_le()
*/
public function testStore64()
{
if (PHP_INT_SIZE < 8) {
$this->markTestSkipped('Public utility test for load64_le()');
}
$this->assertSame(
bin2hex("\xcf\xf4\x80\x00\x00\x00\x00\x00"),
bin2hex(ParagonIE_Sodium_Core_Util::store64_le(8451279)),
'Unexpected result from store64_le'
);
$this->assertSame(
bin2hex("\xff\xff\xff\xff\xff\xff\xff\x7f"),
bin2hex(ParagonIE_Sodium_Core_Util::store64_le(9223372036854775807)),
'Unexpected result from store64_le'
);
}
/**
* @covers ParagonIE_Sodium_Core_Util::mul()
*/
public function testMul()
{
if (PHP_INT_SIZE === 4) {
$this->markTestSkipped('Ignore on 32-bit');
}
$arguments = array(
array(1, 1),
array(65534, 65534),
array(65535, 65534),
array(-65535, 65534),
array(19, -13120145),
array(0x7ffffffe, 1),
array(0x1fffffff, 0x1fffffff),
array(0x01, 0x7fffffff),
array(0x7fffffff, 0x01),
array(0x80808080, 0x01),
array(0xffffffff, 0x01),
array(0xffffffff, 0x02),
array(0xffffffff, 0xffffffff)
);
for ($i = 0; $i < 100; ++$i) {
$arguments[] = array(
random_int(0, 0x7fffffff),
random_int(0, 0x7fffffff)
);
}
for ($i = 0; $i < 100; ++$i) {
$arguments[] = array(
-random_int(0, 0x7fffffff),
-random_int(0, 0x7fffffff)
);
}
for ($i = 0; $i < 100; ++$i) {
$arguments[] = array(
-random_int(0, 0x7fffffff),
random_int(0, 0x7fffffff)
);
}
for ($i = 0; $i < 100; ++$i) {
$arguments[] = array(
random_int(0, 0x7fffffff),
-random_int(0, 0x7fffffff)
);
}
foreach ($arguments as $arg) {
$this->assertSame(
(int) ($arg[0] * $arg[1]),
ParagonIE_Sodium_Core_Util::mul($arg[0], $arg[1]),
'Multiplying ' . $arg[0] . ' by ' . $arg[1] . ' failed.'
);
}
}
}
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