refactor: standardize error messages

src/utils/car-block-getter.js

@@ -34,19 +34,19 @@ export class CarBlockGetter {
     const { value, done } = await promiseTimeout(
       this.carItr.next(),
       this.getBlockTimeout,
-      new TimeoutError(`get block ${cid} timed out`)
+      new TimeoutError(`get ${cid}: timed out`)
     )
 
     if (!value && done) {
-      throw new VerificationError('CAR file has no more blocks.')
+      throw new VerificationError(`get ${cid}: CAR file has no more blocks`)
     }
 
     const { cid: blockCid, bytes } = value
     await verifyBlock(blockCid, bytes)
 
     if (!cid.equals(blockCid)) {
       throw new VerificationError(
-        `received block with cid ${blockCid}, expected ${cid}`
+        `get ${cid}: received ${blockCid} instead`
       )
     }
 

test/car.spec.js

@@ -115,7 +115,7 @@ describe('CAR Verification', () => {
       },
       {
         name: 'VerificationError',
-        message: 'CAR file has no more blocks.'
+        message: 'get bafybeidhkumeonuwkebh2i4fc7o7lguehauradvlk57gzake6ggjsy372a: CAR file has no more blocks'
       }
     )
   })
@@ -155,7 +155,7 @@ describe('CAR Verification', () => {
       {
         name: 'VerificationError',
         message:
-          'received block with cid bafybeidhkumeonuwkebh2i4fc7o7lguehauradvlk57gzake6ggjsy372a, expected bafybeigeqgfwhivuuxgmuvcrrwvs4j3yfzgljssvnuqzokm6uby4fpmwsa'
+          'get bafybeigeqgfwhivuuxgmuvcrrwvs4j3yfzgljssvnuqzokm6uby4fpmwsa: received bafybeidhkumeonuwkebh2i4fc7o7lguehauradvlk57gzake6ggjsy372a instead'
       }
     )
   })