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How to use ByteArray.getOrZero method of org.spekframework.spek2.runtime.util.Base64 class

Best Spek code snippet using org.spekframework.spek2.runtime.util.Base64.ByteArray.getOrZero

Base64.kt

Source:Base64.kt

1package org.spekframework.spek2.runtime.util2private val BASE64_ALPHABET: String = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"3private val BASE64_MASK: Byte = 0x3f4private val BASE64_INVERSE_MASK: Int = 0b1111_11115private val BASE64_PAD: Char = '='6private val BASE64_PAD_BYTE: Byte = BASE64_PAD.toByte()7private val BASE64_INVERSE_ALPHABET = IntArray(256) {8    BASE64_ALPHABET.indexOf(it.toChar())9}10private fun Int.toBase64(): Char = BASE64_ALPHABET[this]11actual object Base64 {12    actual fun encodeToString(text: String): String {13        val encoded = encode(text.toByteArray())14        return buildString(encoded.size) {15            encoded.forEach { append(it.toChar()) }16        }17    }18    actual fun decodeToString(encodedText: String): String {19        val decoded = decode(encodedText.toByteArray())20        return buildString(decoded.size) {21            decoded.forEach { append(it.toChar()) }22        }23    }24    private fun encode(src: ByteArray): ByteArray {25        fun ByteArray.getOrZero(index: Int): Int = if (index >= size) 0 else get(index).toInt()26        // 4n / 3 is expected Base64 payload27        val result = ArrayList<Byte>(4 * src.size / 3)28        var index = 029        while (index < src.size) {30            val symbolsLeft = src.size - index31            val padSize = if (symbolsLeft >= 3) 0 else (3 - symbolsLeft) * 8 / 632            val chunk = (src.getOrZero(index) shl 16) or (src.getOrZero(index + 1) shl 8) or src.getOrZero(index + 2)33            index += 334            for (i in 3 downTo padSize) {35                val char = (chunk shr (6 * i)) and BASE64_MASK.toInt()36                result.add(char.toBase64().toByte())37            }38            // Fill the pad with '='39            repeat(padSize) { result.add(BASE64_PAD_BYTE) }40        }41        return result.toByteArray()42    }43    fun decode(src: ByteArray): ByteArray {44        if (src.size % 4 != 0) {45            throw IllegalArgumentException("Invalid Base64 encoded data.")46        }47        if (src.size == 0) {48            return ByteArray(0)49        }50        val last = src.last()51        val secondLast = src.dropLast(1).last()52        val paddingSize = if (secondLast == BASE64_PAD_BYTE && last == BASE64_PAD_BYTE) {53            254        } else if (last == BASE64_PAD_BYTE) {55            156        } else {57            058        }59        val size = (3 * src.size / 4) - paddingSize60        val result = ArrayList<Byte>(size)61        var index = 062        while (index < src.size) {63            val isLastChunk = index == src.size - 464            val first = decodeByte(src.get(index))65            val second = decodeByte(src.get(index + 1))66            val third = if (isLastChunk && paddingSize == 2) 0 else decodeByte(src.get(index + 2))67            val fourth = if (isLastChunk && paddingSize >= 1) 0 else decodeByte(src.get(index + 3))68            val chunk = (first shl 18) or (second shl 12) or (third shl 6) or fourth69            val paddingChars = if (isLastChunk) paddingSize else 070            for (i in 2 downTo paddingChars) {71                val char = (chunk shr (8 * i)) and BASE64_INVERSE_MASK72                result.add(char.toByte())73            }74            index += 475        }76        return result.toByteArray()77    }78    private fun decodeByte(byte: Byte): Int {79        val inverse = BASE64_INVERSE_ALPHABET[byte.toInt()]80        if (inverse == -1) {81            throw IllegalArgumentException("Invalid Base64 encoded data.")82        }83        return inverse84    }85}86private fun String.toByteArray() = ByteArray(length) {87    get(it).toByte()88}...

ByteArray.getOrZero

Using AI Code Generation

1fun ByteArray.getOrZero(index: Int): Byte = if (index < size) this[index] else 02fun ByteArray.getOrZero(index: Int): Byte = if (index < size) this[index] else 03fun ByteArray.getOrZero(index: Int): Byte = if (index < size) this[index] else 04fun ByteArray.getOrZero(index: Int): Byte = if (index < size) this[index] else 05fun ByteArray.getOrZero(index: Int): Byte = if (index < size) this[index] else 06fun ByteArray.getOrZero(index: Int): Byte = if (index < size) this[index] else 07fun ByteArray.getOrZero(index: Int): Byte = if (index < size) this[index] else 08fun ByteArray.getOrZero(index: Int): Byte = if (index < size) this[index] else 09fun ByteArray.getOrZero(index: Int): Byte = if (index < size) this[index] else 010fun ByteArray.getOrZero(index: Int): Byte = if (index < size) this[index] else 011fun ByteArray.getOrZero(index: Int): Byte = if (index < size) this[index] else 0

ByteArray.getOrZero

Using AI Code Generation

1    val base64 = Base64()2    val byteArray = base64.decode("aGVsbG8gd29ybGQ=")3    expectThat(byteArray.getOrZero(0)).isEqualTo('h'.toByte())4    expectThat(byteArray.getOrZero(1)).isEqualTo('e'.toByte())5    expectThat(byteArray.getOrZero(2)).isEqualTo('l'.toByte())6    expectThat(byteArray.getOrZero(3)).isEqualTo('l'.toByte())7    expectThat(byteArray.getOrZero(4)).isEqualTo('o'.toByte())8    expectThat(byteArray.getOrZero(5)).isEqualTo(' '.toByte())9    expectThat(byteArray.getOrZero(6)).isEqualTo('w'.toByte())10    expectThat(byteArray.getOrZero(7)).isEqualTo('o'.toByte())11    expectThat(byteArray.getOrZero(8)).isEqualTo('r'.toByte())12    expectThat(byteArray.getOrZero(9)).isEqualTo('l'.toByte())13    expectThat(byteArray.getOrZero(10)).isEqualTo('d'.toByte())14    expectThat(byteArray.getOrZero(11)).isEqualTo('!'.toByte())15    expectThat(byteArray.getOrZero(12)).isEqualTo(0.toByte())16    expectThat(byteArray.getOrZero(13)).isEqualTo(0.toByte())17    expectThat(byteArray.getOrZero(14)).isEqualTo(0.toByte())18    expectThat(byteArray.getOrZero(15)).isEqualTo(0.toByte())19    expectThat(byteArray.getOrZero(16)).isEqualTo(0.toByte())20    expectThat(byteArray.getOrZero(17)).isEqualTo(0.toByte())21    expectThat(byteArray.getOrZero(18)).isEqualTo(0.toByte())22    expectThat(byteArray.getOrZero(19)).isEqualTo(0.toByte())23    expectThat(byteArray.getOrZero(20)).isEqualTo(0.toByte())24    expectThat(byteArray.getOrZero(21)).isEqualTo(0.toByte())25    expectThat(byteArray.getOrZero(22)).isEqualTo(0.toByte())26    expectThat(byteArray.getOrZero(23)).isEqualTo(0.toByte())27    expectThat(byteArray.getOrZero(24)).isEqualTo(0.toByte())28    expectThat(byteArray.getOrZero(25)).isEqualTo(0.toByte())29    expectThat(byteArray.getOrZero(26)).isEqualTo(0.toByte())

ByteArray.getOrZero

Using AI Code Generation

1    val charIndex = Base64.getOrZero(char)2    result += charIndex shl 6 * (3 - index)3  }4}5fun decode(str: String): String {6  val bytes = str.toByteArray()7  var char = 0.toChar()

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