feat: add new memory protocol for testing and other simulation scenarios

Author: zebateira

src/convert.js

@@ -36,6 +36,7 @@ Convert.toString = function convertToString (proto, buf) {
     case 55: // dns6
     case 56: // dnsaddr
     case 400: // unix
+    case 777: // memory
       return buf2str(buf)
 
     case 421: // ipfs
@@ -68,6 +69,7 @@ Convert.toBuffer = function convertToBuffer (proto, str) {
     case 55: // dns6
     case 56: // dnsaddr
     case 400: // unix
+    case 777: // memory
       return str2buf(str)
 
     case 421: // ipfs

src/protocols-table.js

@@ -55,7 +55,8 @@ Protocols.table = [
   [477, 0, 'ws'],
   [478, 0, 'wss'],
   [479, 0, 'p2p-websocket-star'],
-  [480, 0, 'http']
+  [480, 0, 'http'],
+  [777, V, 'memory']
 ]
 
 Protocols.names = {}

test/index.spec.js

@@ -469,6 +469,13 @@ describe('variants', () => {
     expect(addr).to.have.property('buffer')
     expect(addr.toString()).to.equal(str)
   })
+
+  it('memory + p2p', () => {
+    const str = '/memory/test/p2p/QmcgpsyWgH8Y8ajJz1Cu72KnS5uo2Aa2LpzU7kinSupNKC'
+    const addr = multiaddr(str)
+    expect(addr).to.have.property('buffer')
+    expect(addr.toString()).to.equal(str)
+  })
 })
 
 describe('helpers', () => {
@@ -580,6 +587,24 @@ describe('helpers', () => {
         resolvable: false
       }])
     })
+
+    it('works with memory', () => {
+      expect(
+        multiaddr('/memory/test/p2p/QmZR5a9AAXGqQF2ADqoDdGS8zvqv8n3Pag6TDDnTNMcFW6').protos()
+      ).to.be.eql([{
+        code: 777,
+        name: 'memory',
+        path: false,
+        size: -1,
+        resolvable: false
+      }, {
+        code: 421,
+        name: 'p2p',
+        path: false,
+        size: -1,
+        resolvable: false
+      }])
+    })
   })
 
   describe('.tuples', () => {