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How to use Int.toBase64 method of org.spekframework.spek2.runtime.util.Base64 class

Best Spek code snippet using org.spekframework.spek2.runtime.util.Base64.Int.toBase64

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}...

Int.toBase64

Using AI Code Generation

1    val base64 = Int.toBase64(123)2    println(base64)3    val int = Int.fromBase64(base64)4    println(int)5}6test {7    useJUnitPlatform {8    }9}

Int.toBase64

Using AI Code Generation

1    private fun encodeData(data: String): String {2        return Base64.encode(data)3    }4    private fun decodeData(data: String): String {5        return Base64.decode(data)6    }7    private fun encodeData(data: ByteArray): String {8        return Base64.encode(data)9    }10    private fun decodeData(data: String): ByteArray {11        return Base64.decode(data)12    }13    private fun encodeData(data: ByteArray): ByteArray {14        return Base64.encode(data)15    }16    private fun decodeData(data: ByteArray): ByteArray {17        return Base64.decode(data)18    }19    private fun encodeData(data: InputStream): String {20        return Base64.encode(data)21    }22    private fun decodeData(data: String): InputStream {23        return Base64.decode(data)24    }25    private fun encodeData(data: InputStream): ByteArray {26        return Base64.encode(data)27    }

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