spec/hashie/extensions/ignore_undeclared_spec.rb in hashie-2.1.2 vs spec/hashie/extensions/ignore_undeclared_spec.rb in hashie-3.0.0

@@ -1,23 +1,46 @@
 require 'spec_helper'
 
 describe Hashie::Extensions::IgnoreUndeclared do
-  class ForgivingTrash < Hashie::Trash
-    include Hashie::Extensions::IgnoreUndeclared
-    property :city
-    property :state, from: :provence
-  end
+  context 'included in Trash' do
+    class ForgivingTrash < Hashie::Trash
+      include Hashie::Extensions::IgnoreUndeclared
+      property :city
+      property :state, from: :provence
+    end
 
-  subject { ForgivingTrash }
+    subject { ForgivingTrash }
 
-  it 'silently ignores undeclared properties on initialization' do
-    expect { subject.new(city: 'Toronto', provence: 'ON', country: 'Canada') }.to_not raise_error
-  end
+    it 'silently ignores undeclared properties on initialization' do
+      expect { subject.new(city: 'Toronto', provence: 'ON', country: 'Canada') }.to_not raise_error
+    end
 
-  it 'works with translated properties (with symbol keys)' do
-    expect(subject.new(provence: 'Ontario').state).to eq('Ontario')
+    it 'works with translated properties (with symbol keys)' do
+      expect(subject.new(provence: 'Ontario').state).to eq('Ontario')
+    end
+
+    it 'works with translated properties (with string keys)' do
+      expect(subject.new(provence: 'Ontario').state).to eq('Ontario')
+    end
+
+    it 'requires properties to be declared on assignment' do
+      hash = subject.new(city: 'Toronto')
+      expect { hash.country = 'Canada' }.to raise_error(NoMethodError)
+    end
   end
 
-  it 'works with translated properties (with string keys)' do
-    expect(subject.new(provence: 'Ontario').state).to eq('Ontario')
+  context 'combined with DeepMerge' do
+    class ForgivingTrashWithMerge < Hashie::Trash
+      include Hashie::Extensions::DeepMerge
+      include Hashie::Extensions::IgnoreUndeclared
+      property :some_key
+    end
+
+    it 'deep merges' do
+      class ForgivingTrashWithMergeAndProperty < ForgivingTrashWithMerge
+        property :some_other_key
+      end
+      hash = ForgivingTrashWithMergeAndProperty.new(some_ignored_key: 17, some_key: 12)
+      expect(hash.deep_merge(some_other_key: 55, some_ignored_key: 18)).to eq(some_key: 12, some_other_key: 55)
+    end
   end
 end