test: cidBase option in resolve

SPEC/MISCELLANEOUS.md

@@ -256,6 +256,7 @@ Where:
 - `name` (string): The name to resolve
 - `options` is an optional object that might include the following properties:
   - `recursive` (boolean, default false): Resolve until the result is an IPFS name
+  - `cidBase` (string): Multibase codec name the CID in the resolved path will be encoded with
 
 `callback` must follow `function (err, res) {}` signature, where `err` is an error if the operation was not successful. `res` is a string, the resolved name.
 

js/src/miscellaneous/resolve.js

@@ -5,6 +5,7 @@ const isIpfs = require('is-ipfs')
 const loadFixture = require('aegir/fixtures')
 const hat = require('hat')
 const waterfall = require('async/waterfall')
+const multibase = require('multibase')
 const { spawnNodeWithId } = require('../utils/spawn')
 const { connect } = require('../utils/swarm')
 const { getDescribe, getIt, expect } = require('../utils/mocha')
@@ -53,6 +54,21 @@ module.exports = (createCommon, options) => {
       })
     })
 
+    it('should resolve an IPFS hash and return a base64url encoded CID in path', (done) => {
+      const content = Buffer.from('TEST' + Date.now())
+
+      ipfs.add(content, (err, res) => {
+        expect(err).to.not.exist()
+
+        ipfs.resolve(`/ipfs/${res[0].hash}`, { cidBase: 'base64url' }, (err, path) => {
+          expect(err).to.not.exist()
+          const cid = path.split('/')[2]
+          expect(multibase.isEncoded(cid)).to.equal('base64url')
+          done()
+        })
+      })
+    })
+
     // Test resolve turns /ipfs/QmRootHash/path/to/file into /ipfs/QmFileHash
     it('should resolve an IPFS path link', (done) => {
       const path = '/path/to/testfile.txt'