80 lines
3.3 KiB
Kotlin
80 lines
3.3 KiB
Kotlin
/*
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* Copyright 2023 dorkbox, llc
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package dorkbox.bytes
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import org.junit.Assert.*
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import org.junit.Test
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import java.io.File
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class TestHashing {
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@Test
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fun xxHash() {
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assertEquals(679431504, "123123123123".xxHash32())
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assertEquals(6768607861876164638, "123123123123".xxHash64())
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val file = File("LICENSE.Apachev2")
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assertEquals(-990273547, file.xxHash32())
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assertEquals(-8777591777774693626, file.xxHash64())
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assertEquals(file.readBytes().xxHash32(), file.xxHash32())
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assertEquals(file.readBytes().xxHash32(start = 10, length = 400), file.xxHash32(start = 10, length = 400))
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assertEquals(file.readBytes().xxHash64(), file.xxHash64())
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assertEquals(file.readBytes().xxHash64(start = 10, length = 400), file.xxHash64(start = 10, length = 400))
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}
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@Test
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fun shaHashFile() {
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val file = File("LICENSE.Apachev2")
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assertEquals("0x1b64c725684886157776ac3189536fb826a5ee3614321a589580243d92c2458e", file.sha256().toHexString())
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assertEquals("0xc615bc169ede733444ae128fdac4824aa3c4e0ab04d228b302f8227e0cf1b49d", file.sha512().toHexString())
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assertArrayEquals(file.readBytes().sha256(), file.sha256())
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assertArrayEquals(file.readBytes().sha256(start = 10, length = 400), file.sha256(start = 10, length = 400))
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}
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@Test
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fun shaHash() {
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assertEquals("0xf11aea6605c934e435964041bc4b376f256aaf994c70c5458a133fc157096d46", "123123123123".sha256().toHexString())
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assertEquals("0x13b3f95860b8a2da4ee89c610ba674d45269004180a924716cc60c0358b5af08", "123123123123".sha512().toHexString())
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assertArrayEquals("123123123123".sha256(), "123123123123".toBytes16().sha256())
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// NOTE: UTF_16 will always append a BOM (Byte Order Mark) of \uFEFF
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// https://stackoverflow.com/questions/54247407/why-utf-8-bom-bytes-efbbbf-can-be-replaced-by-ufeff
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// FEFF is the BOM for UTF_16 (required by RFC 2781 for charsets)
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assertEquals("feff" + ("123123123123".toBytes16().toNoPrefixHexString()), "123123123123".toByteArray(Charsets.UTF_16).toNoPrefixHexString())
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assertArrayEquals("23".toCharArray().toBytes16(), "23".toBytes16() )
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assertArrayEquals("123123123123".toBytes16(4, 2), "123123123123".toCharArray(startIndex = 4, endIndex = 4+2).toBytes16())
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assertArrayEquals("123123123123".toBytes16(4, 2), "123123123123".toCharArray().toBytes16(4, 2))
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assertArrayEquals("23".toCharArray().toBytes16(), "123123123123".toCharArray().toBytes16(4, 2))
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assertArrayEquals("23".toBytes16(), "123123123123".toCharArray().toBytes16(4, 2))
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assertFalse("123123123123".toBytes16(4, 2).contentEquals("123123123123".toBytes16(1, 3)))
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assertArrayEquals("123123123123".toCharArray().toBytes16().sha256(), "123123123123".sha256())
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}
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}
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