From 540b70ccca114fd9953b5b6656ee3cea9d0b4242 Mon Sep 17 00:00:00 2001
From: Daniel Cousens <github@dcousens.com>
Date: Mon, 21 Apr 2014 06:19:49 +1000
Subject: [PATCH] Adds script to create Bitcoin-core compatible test fixtures

---
 qa/coretests.js | 128 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 128 insertions(+)
 create mode 100644 qa/coretests.js

diff --git a/qa/coretests.js b/qa/coretests.js
new file mode 100644
index 0000000..e2d951e
--- /dev/null
+++ b/qa/coretests.js
@@ -0,0 +1,128 @@
+var assert = require('assert')
+var base58 = require('..').base58
+var base58check = require('..').base58check
+var crypto = require('..').crypto
+var fs = require('fs')
+var request = require('request')
+var secureRandom = require('secure-random')
+
+function b2h(b) { return new Buffer(b).toString('hex') }
+function h2b(h) { return new Buffer(h, 'hex') }
+function randomBuf(s) {
+  return new Buffer(secureRandom(s))
+}
+
+request('https://raw.githubusercontent.com/bitcoin/bitcoin/master/src/test/data/base58_encode_decode.json', function (error, response, body) {
+  assert.ifError(error)
+  assert.equal(response.statusCode, 200)
+
+  var data = JSON.parse(body)
+  var valid = data.map(function(x) {
+    return {
+        hex: x[0],
+        string: x[1]
+    }
+  })
+
+  // https://github.com/bitcoin/bitcoin/blob/master/src/test/base58_tests.cpp#L73
+//  FIXME: Doesn't work TODO
+//  valid.push({
+//    hex: '971a55',
+//    string: ' \t\n\v\f\r skip \r\f\v\n\t '
+//  })
+
+  var fixtureJSON = JSON.stringify({
+    valid: valid,
+    invalid: [
+      {
+        description: 'non-base58 string',
+        string: 'invalid'
+      },
+      {
+        description: 'non-base58 alphabet',
+        string: 'c2F0b3NoaQo='
+      },
+      {
+        description: 'leading whitespace',
+        string: ' 1111111111'
+      },
+      {
+        description: 'trailing whitespace',
+        string: '1111111111 '
+      },
+      // https://github.com/bitcoin/bitcoin/blob/master/src/test/base58_tests.cpp#L72
+      {
+        description: 'unexpected character after whitespace',
+        string: ' \t\n\v\f\r skip \r\f\v\n\t a'
+      }
+    ]
+  }, null, '  ')
+
+  fs.writeFileSync('./test/fixtures/base58.js', 'module.exports = ' + fixtureJSON)
+})
+
+request('https://raw.githubusercontent.com/bitcoin/bitcoin/master/src/test/data/base58_keys_valid.json', function (error, response, body) {
+request('https://raw.githubusercontent.com/bitcoin/bitcoin/master/src/test/data/base58_keys_invalid.json', function (error2, response2, body2) {
+  assert.ifError(error)
+  assert.ifError(error2)
+  assert.equal(response.statusCode, 200)
+  assert.equal(response2.statusCode, 200)
+
+  var validData = JSON.parse(body)
+  var invalidData = JSON.parse(body2)
+
+  var valid = validData.map(function(x) {
+    var string = x[0]
+    var hex = x[1]
+    var params = x[2]
+
+    if (params.isCompressed) {
+      hex += '01'
+    }
+    assert.equal(b2h(base58check.decode(string).payload), hex)
+
+    return {
+      string: string,
+      decode: {
+        version: base58check.decode(string).version,
+        payload: hex,
+        checksum: b2h(base58check.decode(string).checksum),
+      }
+    }
+  })
+  var invalid2 = invalidData.map(function(x) { return x[0] })
+
+  // Our own tests
+  var hash = crypto.hash160(randomBuf(65))
+  var checksum = base58check.decode(base58check.encode(hash)).checksum
+
+  var fixtureJSON = JSON.stringify({
+    valid: valid,
+    invalid: [
+      {
+        base58check: base58check.encode(hash.slice(0, 18), 0x05),
+        description: 'hash too short'
+      },
+      {
+        base58check: base58check.encode(Buffer.concat([hash, randomBuf(2)]), 0x05),
+        description: 'hash too long'
+      },
+      {
+        base58check: base58.encode(Buffer.concat([new Buffer([0x01]), hash, checksum])),
+        description: 'bad version byte',
+      },
+      {
+        base58check: base58.encode(Buffer.concat([new Buffer([0x05]), randomBuf(20), checksum])),
+        description: 'bad payload',
+      },
+      {
+        base58check: base58.encode(Buffer.concat([new Buffer([0x05]), hash, randomBuf(4)])),
+        description: 'bad SHA256 checksum',
+      }
+    ],
+    invalid2: invalid2
+  }, null, '  ')
+
+  fs.writeFileSync('./test/fixtures/base58check.js', 'module.exports = ' + fixtureJSON)
+})
+})