Added IgnoreUndeclared, an extension to silently ignore undeclared properties at hash intialization.

1 files changed, 23 insertions, 0 deletions

diff --git a/spec/hashie/extensions/ignore_undeclared_spec.rb b/spec/hashie/extensions/ignore_undeclared_spec.rb
new file mode 100644
index 0000000..b7d7ad5
--- /dev/null
+++ b/spec/hashie/extensions/ignore_undeclared_spec.rb
@@ -0,0 +1,23 @@
+require 'spec_helper'
+
+describe Hashie::Extensions::IgnoreUndeclared do
+  class ForgivingTrash < Hashie::Trash
+    include Hashie::Extensions::IgnoreUndeclared
+    property :city
+    property :state, from: :provence
+  end
+
+  subject { ForgivingTrash }
+
+  it 'should silently ignore undeclared properties on initialization' do
+    expect { subject.new(city: 'Toronto', provence: 'ON', country: 'Canada') }.to_not raise_error
+  end
+
+  it 'should work with translated properties (with symbol keys)' do
+    expect(subject.new(provence: 'Ontario').state).to eq('Ontario')
+  end
+
+  it 'should work with translated properties (with string keys)' do
+    expect(subject.new(provence: 'Ontario').state).to eq('Ontario')
+  end
+end