1 files changed, 8 insertions, 6 deletions
diff --git a/spec/ruby/core/hash/fetch_spec.rb b/spec/ruby/core/hash/fetch_spec.rb
index 5e701b1162..24662c2b0e 100644
--- a/spec/ruby/core/hash/fetch_spec.rb
+++ b/spec/ruby/core/hash/fetch_spec.rb
@@ -1,15 +1,17 @@
 require File.expand_path('../../../spec_helper', __FILE__)
 require File.expand_path('../fixtures/classes', __FILE__)
+require File.expand_path('../../../shared/hash/key_error', __FILE__)
 
 describe "Hash#fetch" do
-  it "returns the value for key" do
-    { a: 1, b: -1 }.fetch(:b).should == -1
+  context "when the key is not found" do
+    it_behaves_like :key_error, ->(obj, key) { obj.fetch(key) }, Hash.new(a: 5)
+    it_behaves_like :key_error, ->(obj, key) { obj.fetch(key) }, {}
+    it_behaves_like :key_error, ->(obj, key) { obj.fetch(key) }, Hash.new { 5 }
+    it_behaves_like :key_error, ->(obj, key) { obj.fetch(key) }, Hash.new(5)
   end
 
-  it "raises a KeyError if key is not found" do
-    lambda { {}.fetch(:a)       }.should raise_error(KeyError)
-    lambda { Hash.new(5).fetch(:a)    }.should raise_error(KeyError)
-    lambda { Hash.new { 5 }.fetch(:a) }.should raise_error(KeyError)
+  it "returns the value for key" do
+    { a: 1, b: -1 }.fetch(:b).should == -1
   end
 
   it "returns default if key is not found when passed a default" do