Tweaks

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>

Author: eregon

CONTRIBUTING.md

@@ -246,7 +246,7 @@ Here's an example of a snippet of a shared spec and two specs which integrates i
 # core/hash/shared/iteration.rb
 describe :hash_iteration_no_block, shared: true do
   it "returns an Enumerator if called on a non-empty hash without a block" do
-    {}.send(@method).should.instance_of?(Enumerator)
+    { 1 => 2 }.send(@method).should.instance_of?(Enumerator)
   end
 end
 
@@ -256,7 +256,7 @@ describe "Hash#select" do
 end
 
 # core/hash/reject_spec.rb
-describe "Hash#reject?" do
+describe "Hash#reject" do
   it_behaves_like :hash_iteration_no_block, :reject
 end
 ```

core/hash/element_set_spec.rb

@@ -2,7 +2,7 @@
 require_relative 'fixtures/classes'
 
 describe "Hash#[]=" do
-  it "associates the key with the value and return the value" do
+  it "associates the key with the value" do
     h = { a: 1 }
     h[:b] = 2
     h.should == { b:2, a:1 }

core/hash/inspect_spec.rb

@@ -81,7 +81,7 @@
 
   it "works for keys and values whose #inspect return a frozen String" do
     expected = ruby_version_is("3.4") ? "{true => false}" : "{true=>false}"
-    { true => false }.to_s.should == expected
+    { true => false }.inspect.should == expected
   end
 
   ruby_version_is "3.4" do