1 files changed, 27 insertions, 0 deletions
diff --git a/spec/support/doubles/hash.rb b/spec/support/doubles/hash.rb
new file mode 100644
index 0000000000..fd9edd34ad
--- /dev/null
+++ b/spec/support/doubles/hash.rb
@@ -0,0 +1,27 @@
+class Hash
+  def ordered_array
+    to_a.sort { |(key1, value1), (key2, value2)| key1.hash <=> key2.hash }
+  end
+
+  undef :keys
+  def keys
+    ordered_array.collect(&:first)
+  end
+
+  undef :values
+  def values
+    ordered_array.collect { |_, v| v }
+  end
+
+  undef :each
+  def each(&block)
+    ordered_array.each(&block)
+  end
+
+  undef :shift
+  def shift
+    returning to_a.first do |k, v|
+      delete(k)
+    end
+  end
+end