Test useful errors for HTTP response codes

test/errors.js

@@ -19,3 +19,30 @@ test('Handle HTML responses for errors', async t => {
 
   t.truthy(scope.isDone())
 })
+
+test('Throw useful errors for HTTP response codes', async t => {
+  const onionoo = new Onionoo()
+
+  const defaultEndpoint = data.defaultEndpoints[0]
+  const responseCodes = {
+    400: 'Bad Request',
+    404: 'Not Found',
+    500: 'Internal Server Error',
+    503: 'Service Unavailable'
+  }
+
+  for (const responseCode in responseCodes) {
+    const scope = nock(data.defaultBaseUrl)
+      .get(`/${defaultEndpoint}`)
+      .reply(responseCode)
+
+    try {
+      await onionoo[defaultEndpoint]()
+    } catch (e) {
+      t.is(e.message, `Response code ${responseCode} (${responseCodes[responseCode]})`)
+      t.is(e.statusCode, parseInt(responseCode, 10))
+      t.is(e.statusMessage, responseCodes[responseCode])
+    }
+    t.truthy(scope.isDone())
+  }
+})