feat/complete

package.json

@@ -44,10 +44,11 @@
   },
   "devDependencies": {
     "aegir": "^8.1.1",
+    "chai": "^3.5.0",
     "pre-commit": "^1.1.3"
   },
   "contributors": [
     "David Dias <[email protected]>",
     "Richard Littauer <[email protected]>"
   ]
-}
+}

src/base-table.js

@@ -2,21 +2,45 @@
 
 const varint = require('varint')
 
+// spec and table at: https://github.com/multiformats/multicodec
+
+// TODO revisit all of these once https://github.com/multiformats/multicodec/pull/16 is merged
+
 exports = module.exports
 
 // Miscellaneous
 exports.raw = varintBuf(0)          // 0x00
 
-// Multiformats
-exports.multicodec = varintBuf(64)  // 0x40
-exports.multihash = varintBuf(65)   // 0x41
-exports.multiaddr = varintBuf(66)   // 0x42
+// bases encodings
 
 // Serialization formats
 exports.protobuf = varintBuf(80)    // 0x50
 exports.cbor = varintBuf(81)        // 0x51
 exports.rlp = varintBuf(96)         // 0x60
 
+// Multiformats
+exports.multicodec = varintBuf(64)  // 0x40
+exports.multihash = varintBuf(65)   // 0x41
+exports.multiaddr = varintBuf(66)   // 0x42
+
+// multihashes
+
+// multiaddrs
+
+// archiving formats
+
+// image formats
+
+// video formats
+
+// VCS formats
+
+// IPLD formats
+exports['dag-pb'] = new Buffer('70', 'hex')
+exports['dag-cbor'] = new Buffer('71', 'hex')
+exports['eth-block'] = new Buffer('90', 'hex')
+exports['eth-tx'] = new Buffer('91', 'hex')
+
 function varintBuf (n) {
   return new Buffer(varint.encode(n))
 }

src/index.js

@@ -26,8 +26,8 @@ exports.rmPrefix = (data) => {
 }
 
 exports.getCodec = (prefixedData) => {
-  const code = new Buffer(varint.decode(prefixedData))
-
+  const v = varint.decode(prefixedData)
+  const code = new Buffer(v.toString(16), 'hex')
   let codec
 
   Object.keys(table)

test/multicodec.spec.js

@@ -1 +1,21 @@
+/* eslint-env mocha */
 'use strict'
+
+const expect = require('chai').expect
+const multicodec = require('../src')
+
+describe('multicodec', () => {
+  it('add prefix through multicodec (string)', () => {
+    const buf = new Buffer('hey')
+    const prefixedBuf = multicodec.addPrefix('protobuf', buf)
+    expect(multicodec.getCodec(prefixedBuf)).to.equal('protobuf')
+    expect(buf).to.eql(multicodec.rmPrefix(prefixedBuf))
+  })
+
+  it('add prefix through code (code)', () => {
+    const buf = new Buffer('hey')
+    const prefixedBuf = multicodec.addPrefix(new Buffer('70', 'hex'), buf)
+    expect(multicodec.getCodec(prefixedBuf)).to.equal('dag-pb')
+    expect(buf).to.eql(multicodec.rmPrefix(prefixedBuf))
+  })
+})