add test for onServerPreHandler

test/hemera/server-extension-errors.spec.js

@@ -121,6 +121,58 @@ describe('Server Extension error', function() {
     })
   })
 
+  it('Should be able to pass an error to onServerPreHandler', function(done) {
+    const nats = require('nats').connect(authUrl)
+
+    const hemera = new Hemera(nats)
+
+    let plugin = function(hemera, options, done) {
+      hemera.ext('onServerPreHandler', function(ctx, req, res, next) {
+        next(new Error('test'))
+      })
+
+      hemera.add(
+        {
+          cmd: 'add',
+          topic: 'math'
+        },
+        (resp, cb) => {
+          cb(null, resp.a + resp.b)
+        }
+      )
+
+      done()
+    }
+
+    hemera.use({
+      plugin: plugin,
+      options: {
+        name: 'myPlugin'
+      }
+    })
+
+    hemera.ready(() => {
+      hemera.act(
+        {
+          topic: 'math',
+          cmd: 'add',
+          a: 1,
+          b: 2
+        },
+        (err, resp) => {
+          expect(err).to.be.exists()
+          expect(err.name).to.be.equals('Error')
+          expect(err.message).to.be.equals('test')
+          expect(err.hops).to.be.exists()
+          expect(err.hops.length).to.be.equals(1)
+          expect(err.hops[0].service).to.be.equals('math')
+          expect(err.hops[0].method).to.be.equals('a:1,b:2,cmd:add,topic:math')
+          hemera.close(done)
+        }
+      )
+    })
+  })
+
   it('Should be able to pass a custom super error to onServerPreResponse', function(
     done
   ) {