Merge pull request #41 from nashby/deep-merge

add DeepMerge extension

1 files changed, 20 insertions, 0 deletions

diff --git a/spec/hashie/extensions/deep_merge_spec.rb b/spec/hashie/extensions/deep_merge_spec.rb
new file mode 100644
index 0000000..d835381
--- /dev/null
+++ b/spec/hashie/extensions/deep_merge_spec.rb
@@ -0,0 +1,20 @@
+require 'spec_helper'
+
+describe Hashie::Extensions::DeepMerge do
+  class DeepMergeHash < Hash; include Hashie::Extensions::DeepMerge end
+
+  subject{ DeepMergeHash }
+
+  let(:h1) { subject.new.merge(:a => "a", :b => "b", :c => { :c1 => "c1", :c2 => "c2", :c3 => { :d1 => "d1" } }) }
+  let(:h2) { { :a => 1, :c => { :c1 => 2, :c3 => { :d2 => "d2" } } } }
+  let(:expected_hash) { { :a => 1, :b => "b", :c => { :c1 => 2, :c2 => "c2", :c3 => { :d1 => "d1", :d2 => "d2" } } } }
+
+  it 'should deep merge two hashes' do
+    h1.deep_merge(h2).should == expected_hash
+  end
+
+  it 'should deep merge two hashes with bang method' do
+    h1.deep_merge!(h2)
+    h1.should == expected_hash
+  end
+end