test: add additional DAG CBOR and raw tests (#494)

Made by @achingbrain for ipfs-inactive/js-ipfs-http-client#957

License: MIT
Signed-off-by: Alan Shaw <alan.shaw@protocol.ai>

Author: Alan Shaw

src/dag/get.js

@@ -266,5 +266,61 @@ module.exports = (createCommon, options) => {
         })
       })
     })
+
+    it('should be able to get part of a dag-cbor node', (done) => {
+      const cbor = {
+        foo: 'dag-cbor-bar'
+      }
+      ipfs.dag.put(cbor, { format: 'dag-cbor', hashAlg: 'sha2-256' }, (err, cid) => {
+        expect(err).to.not.exist()
+        expect(cid.codec).to.equal('dag-cbor')
+        cid = cid.toBaseEncodedString('base32')
+        expect(cid).to.equal('bafyreic6f672hnponukaacmk2mmt7vs324zkagvu4hcww6yba6kby25zce')
+        ipfs.dag.get(cid, 'foo', (err, result) => {
+          expect(err).to.not.exist()
+          expect(result.value).to.equal('dag-cbor-bar')
+          done()
+        })
+      })
+    })
+
+    it('should be able to traverse from one dag-cbor node to another', (done) => {
+      const cbor1 = {
+        foo: 'dag-cbor-bar'
+      }
+
+      ipfs.dag.put(cbor1, { format: 'dag-cbor', hashAlg: 'sha2-256' }, (err, cid1) => {
+        expect(err).to.not.exist()
+
+        const cbor2 = { other: cid1 }
+
+        ipfs.dag.put(cbor2, { format: 'dag-cbor', hashAlg: 'sha2-256' }, (err, cid2) => {
+          expect(err).to.not.exist()
+
+          ipfs.dag.get(cid2, 'other/foo', (err, result) => {
+            expect(err).to.not.exist()
+            expect(result.value).to.equal('dag-cbor-bar')
+            done()
+          })
+        })
+      })
+    })
+
+    it('should be able to get a DAG node with format raw', (done) => {
+      const buf = Buffer.from([0, 1, 2, 3])
+
+      ipfs.dag.put(buf, {
+        format: 'raw',
+        hashAlg: 'sha2-256'
+      }, (err, cid) => {
+        expect(err).to.not.exist()
+
+        ipfs.dag.get(cid, (err, result) => {
+          expect(err).to.not.exist()
+          expect(result.value).to.deep.equal(buf)
+          done()
+        })
+      })
+    })
   })
 }