Fix upgrading to ROM 4.x

.travis.yml

@@ -1,26 +1,32 @@
 language: ruby
+
 dist: trusty
-sudo: required
+sudo: false
+
 cache: bundler
+
 services:
   - mongodb
-bundler_args: --without yard guard benchmarks tools
-after_success:
-  - '[ -d coverage ] && bundle exec codeclimate-test-reporter'
-script: "bundle exec rake ci"
+
 rvm:
-  - 2.2.6
   - 2.3.3
-  - 2.4.1
-  - rbx-3
-  - jruby
+  - 2.5.0
+  - jruby-9.1.13.0
+
+bundler_args: --without tools
+
 env:
   global:
     - JRUBY_OPTS='--dev -J-Xmx1024M'
     - COVERAGE='true'
-matrix:
-  allow_failures:
-    - rvm: rbx-3
+
+before_install:
+  # NOTE: https://github.com/travis-ci/travis-ci/issues/8978
+  - gem update --system
+
+after_success:
+  - '[ -d coverage ] && bundle exec codeclimate-test-reporter'
+
 notifications:
   webhooks:
     urls:

lib/rom/mongo/struct.rb

@@ -3,7 +3,7 @@
 module ROM
   module Mongo
     class Struct < ROM::Struct
-      constructor_type :symbolized
+      constructor_type :permissive
     end
   end
 end

spec/integration/gateway_spec.rb

@@ -58,9 +58,7 @@
       it 'inserts a document into collection' do
         id = BSON::ObjectId.new
 
-        result = commands.try do
-          commands.create.call(_id: id, name: 'joe', email: '[email protected]')
-        end
+        result = commands.create.call(_id: id, name: 'joe', email: '[email protected]')
 
         expect(result)
           .to match_array([{ _id: id, name: 'joe', email: '[email protected]' }])
@@ -71,9 +69,7 @@
       it 'updates a document in the collection' do
         jane = users.by_name('Jane').one!
 
-        result = commands.try do
-          commands.update.by_name('Jane').call(email: '[email protected]')
-        end
+        result = commands.update.by_name('Jane').call(email: '[email protected]')
 
         expect(result).to match_array(
           [{ '_id' => BSON::ObjectId.from_string(jane._id),