fix: dht find peer and providers (#368)

Author: vasco-santos

js/src/dht/findpeer.js

@@ -48,7 +48,7 @@ module.exports = (createCommon, options) => {
 
     it('should fail to find other peer if peer does not exist', (done) => {
       nodeA.dht.findpeer('Qmd7qZS4T7xXtsNFdRoK1trfMs5zU94EpokQ9WFtxdPxsZ', (err, peer) => {
-        expect(err).to.not.exist()
+        expect(err).to.exist()
         expect(peer).to.not.exist()
         done()
       })

js/src/dht/findprovs.js

@@ -60,7 +60,7 @@ module.exports = (createCommon, options) => {
         },
         (cidV0, cb) => nodeA.dht.findprovs(cidV0, cb),
         (provs, cb) => {
-          expect(provs.map((p) => p.toB58String()))
+          expect(provs.map((p) => p.id.toB58String()))
             .to.eql([nodeB.peerId.id])
           cb()
         }