Update to ruby/spec@a6b8805

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60525 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 21 insertions, 0 deletions

diff --git a/spec/ruby/core/hash/transform_values_spec.rb b/spec/ruby/core/hash/transform_values_spec.rb
index 7e4ff45bea..0c9e43d621 100644
--- a/spec/ruby/core/hash/transform_values_spec.rb
+++ b/spec/ruby/core/hash/transform_values_spec.rb
@@ -24,6 +24,15 @@ ruby_version_is "2.4" do
         enumerator.each(&:succ).should == { a: 2, b: 3, c: 4 }
       end
     end
+
+    it "returns a Hash instance, even on subclasses" do
+      klass = Class.new(Hash)
+      h = klass.new
+      h[:foo] = 42
+      r = h.transform_values{|v| 2 * v}
+      r[:foo].should == 84
+      r.class.should == Hash
+    end
   end
 
   describe "Hash#transform_values!" do
@@ -41,6 +50,14 @@ ruby_version_is "2.4" do
       @hash.should ==  { a: 2, b: 3, c: 4 }
     end
 
+    it "partially modifies the contents if we broke from the block" do
+      @hash.transform_values! do |v|
+        break if v == 3
+        100 + v
+      end
+      @hash.should == { a: 101, b: 102, c: 3}
+    end
+
     context "when no block is given" do
       it "returns a sized Enumerator" do
         enumerator = @hash.transform_values!
@@ -56,6 +73,10 @@ ruby_version_is "2.4" do
         @hash.freeze
       end
 
+      it "raises a RuntimeError on an empty hash" do
+        ->{ {}.freeze.transform_values!(&:succ) }.should raise_error(RuntimeError)
+      end
+
       it "keeps pairs and raises a RuntimeError" do
         ->{ @hash.transform_values!(&:succ) }.should raise_error(RuntimeError)
         @hash.should == @initial_pairs