import test from 'ava' import CharSet, {charSet64, charSet32, charSet16, charSet8, charSet4, charSet2} from '../lib/charSet' test.beforeEach('Create CharSets', t => { t.context.charSet64 = new CharSet('ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_') t.context.charSet32 = new CharSet('2346789bdfghjmnpqrtBDFGHJLMNPQRT') t.context.charSet16 = new CharSet('0123456789abcdef') t.context.charSet8 = new CharSet('01234567') t.context.charSet4 = new CharSet('ATCG') t.context.charSet2 = new CharSet('01') }) test('char set 64', t => { const charSet = t.context.charSet64 const length = charSet.getChars().length t.is(length, 64) const bitsPerChar = Math.log2(length) t.is(charSet.getBitsPerChar(), bitsPerChar) t.is(charSet.getCharsPerChunk(), 4) }) test('char set 32', t => { const charSet = t.context.charSet32 const length = charSet.getChars().length t.is(length, 32) const bitsPerChar = Math.log2(length) t.is(charSet.getBitsPerChar(), bitsPerChar) t.is(charSet.getCharsPerChunk(), 8) }) test('char set 16', t => { const charSet = t.context.charSet16 const length = charSet.getChars().length t.is(length, 16) const bitsPerChar = Math.log2(length) t.is(charSet.getBitsPerChar(), bitsPerChar) t.is(charSet.getCharsPerChunk(), 2) }) test('char set 8', t => { const charSet = t.context.charSet8 const length = charSet.getChars().length t.is(length, 8) const bitsPerChar = Math.log2(length) t.is(charSet.getBitsPerChar(), bitsPerChar) t.is(charSet.getCharsPerChunk(), 8) }) test('char set 4', t => { const charSet = t.context.charSet4 const length = charSet.getChars().length t.is(length, 4) const bitsPerChar = Math.log2(length) t.is(charSet.getBitsPerChar(), bitsPerChar) t.is(charSet.getCharsPerChunk(), 4) }) test('char set 2', t => { const charSet = t.context.charSet2 const length = charSet.getChars().length t.is(length, 2) const bitsPerChar = Math.log2(length) t.is(charSet.getBitsPerChar(), bitsPerChar) t.is(charSet.getCharsPerChunk(), 8) }) test('Custom chars: 64', t => { let error = t.throws(() => { new CharSet('ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789ab') }, Error) t.regex(error.message, /.*unique/) error = t.throws(() => { new CharSet('ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz)!@#$%^&*(+=0') }, Error) t.regex(error.message, /.*count/) error = t.throws(() => { new CharSet('ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz)!@#$%^&*(+') }, Error) t.regex(error.message, /.*count/) }) test('Custom chars: 32', t => { let error = t.throws(() => { new CharSet('01234567890123456789012345678901') }, Error) t.regex(error.message, /.*unique/) error = t.throws(() => { new CharSet('0123456789abcdefghijklmnopqrstu') }, Error) t.regex(error.message, /.*count/) error = t.throws(() => { new CharSet('0123456789abcdefghijklmnopqrstuvw') }, Error) t.regex(error.message, /.*count/) }) test('Custom chars: 16', t => { let error = t.throws(() => { new CharSet('0123456789abcde0') }, Error) t.regex(error.message, /.*unique/) error = t.throws(() => { new CharSet('0123456789abcde') }, Error) t.regex(error.message, /.*count/) error = t.throws(() => { new CharSet('0123456789abcdefg') }, Error) t.regex(error.message, /.*count/) }) test('Custom chars: 8', t => { let error = t.throws(() => { new CharSet('abcdefga') }, Error) t.regex(error.message, /.*unique/) error = t.throws(() => { new CharSet('abcdefg') }, Error) t.regex(error.message, /.*count/) error = t.throws(() => { new CharSet('abcdefghi') }, Error) t.regex(error.message, /.*count/) }) test('Custom chars: 4', t => { let error = t.throws(() => { new CharSet('abbc') }, Error) t.regex(error.message, /.*unique/) error = t.throws(() => { new CharSet('abc') }, Error) t.regex(error.message, /.*count/) error = t.throws(() => { new CharSet('abcde') }, Error) t.regex(error.message, /.*count/) }) test('Custom chars: 2', t => { let error = t.throws(() => { new CharSet('TT') }, Error) t.regex(error.message, /.*unique/) error = t.throws(() => { new CharSet('T') }, Error) t.regex(error.message, /.*count/) error = t.throws(() => { new CharSet('H20') }, Error) t.regex(error.message, /.*count/) }) test('Bytes needed', t => { let BITS_PER_BYTE = 8 let doTest = (charSet, bits) => { let bytesNeeded = charSet.bytesNeeded(bits) let atLeast = Math.ceil(bits/BITS_PER_BYTE) t.true(atLeast <= bytesNeeded, 'CharSet: ' + charSet.chars() + ', Bits ' + bits) let atMost = atLeast + 1 t.true(bytesNeeded <= atMost, 'CharSet: ' + charSet.chars() + ', Bits ' + bits) } let charSets = [charSet64, charSet32, charSet16, charSet8, charSet4, charSet2] charSets.forEach( (charSet) => { for (let bits = 0; bits <= 10; bits++) { doTest(charSet, bits) } for (let bits = 12; bits <= 132; bits += 5) { doTest(charSet, bits) } }) })