Check if migration exist for migrate()

Author: AuHau

src/index.js

@@ -63,6 +63,10 @@ async function migrate (path, { toVersion, ignoreLock = false, repoOptions, onPr
   }
   toVersion = toVersion || getLatestMigrationVersion(migrations)
 
+  if (toVersion > getLatestMigrationVersion(migrations)) {
+    throw new errors.InvalidValueError('The ipfs-repo-migrations package does not have migration for version: ' + toVersion)
+  }
+
   const currentVersion = await repoVersion.getVersion(path)
 
   if (currentVersion === toVersion) {

test/index.spec.js

@@ -277,6 +277,13 @@ describe('index.js', () => {
       )
     })
 
+    it('should error if migrations does not exist', () => {
+      const options = createOptions(5)
+
+      return expect(migrator.migrate('/some/path', options))
+        .to.eventually.be.rejectedWith(errors.InvalidValueError).with.property('code', errors.InvalidValueError.code)
+    })
+
     it('should use latest migration\'s version if no toVersion is provided', async () => {
       const options = createOptions()
       getVersionStub.returns(2)