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<?php
/**
* Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
* SPDX-License-Identifier: Apache-2.0.
*/
use AWS\CRT\CRT;
require_once('common.inc');
final class CrcTest extends CrtTestCase {
public function testCrc32ZeroesOneShot() {
$input = implode(array_map("chr", array_fill(0, 32, 0)));
$output = CRT::crc32($input);
$expected = 0x190A55AD;
$this->assertEquals($output, $expected);
}
public function testCrc32ZeroesIterated() {
$output = 0;
for ($i = 0; $i < 32; $i++) {
$output = CRT::crc32("\x00", $output);
}
$expected = 0x190A55AD;
$this->assertEquals($output, $expected);
}
public function testCrc32ValuesOneShot() {
$input = implode(array_map("chr", range(0, 31)));
$output = CRT::crc32($input);
$expected = 0x91267E8A;
$this->assertEquals($output, $expected);
}
public function testCrc32ValuesIterated() {
$output = 0;
foreach (range(0, 31) as $n) {
$output = CRT::crc32(chr($n), $output);
}
$expected = 0x91267E8A;
$this->assertEquals($output, $expected);
}
public function testCrc32LargeBuffer() {
$input = implode(array_map("chr", array_fill(0, 1 << 20, 0)));
$output = CRT::crc32($input);
$expected = 0xA738EA1C;
$this->assertEquals($output, $expected);
}
public function testCrc32cZeroesOneShot() {
$input = implode(array_map("chr", array_fill(0, 32, 0)));
$output = CRT::crc32c($input);
$expected = 0x8A9136AA;
$this->assertEquals($output, $expected);
}
public function testCrc32cZeroesIterated() {
$output = 0;
for ($i = 0; $i < 32; $i++) {
$output = CRT::crc32c("\x00", $output);
}
$expected = 0x8A9136AA;
$this->assertEquals($output, $expected);
}
public function testCrc32cValuesOneShot() {
$input = implode(array_map("chr", range(0, 31)));
$output = CRT::crc32c($input);
$expected = 0x46DD794E;
$this->assertEquals($output, $expected);
}
public function testCrc32cValuesIterated() {
$output = 0;
foreach (range(0, 31) as $n) {
$output = CRT::crc32c(chr($n), $output);
}
$expected = 0x46DD794E;
$this->assertEquals($output, $expected);
}
public function testCrc32cLargeBuffer() {
$input = implode(array_map("chr", array_fill(0, 1 << 20, 0)));
$output = CRT::crc32c($input);
$expected = 0x14298C12;
$this->assertEquals($output, $expected);
}
}
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