Add spec for compare_by_identity in Hash#replace

ruby · Jun 16, 2024 · 5bdb1cd · 5bdb1cd
1 parent 94d8b4b
commit 5bdb1cd
Showing 1 changed file with 16 additions and 0 deletions.
diff --git a/core/hash/replace_spec.rb b/core/hash/replace_spec.rb
@@ -23,6 +23,22 @@
     h.should == { 1 => 2 }
   end
 
+  it "transfers the compare_by_identity flag" do
+    hash_a = { a: 1 }
+    hash_b = { b: 2 }
+    hash_b.compare_by_identity
+    hash_a.should_not.compare_by_identity?
+    hash_a.replace(hash_b)
+    hash_a.should.compare_by_identity?
+
+    hash_a = { a: 1 }
+    hash_b = { b: 2 }
+    hash_a.compare_by_identity
+    hash_a.should.compare_by_identity?
+    hash_a.replace(hash_b)
+    hash_a.should_not.compare_by_identity?
+  end
+
   it "does not transfer default values" do
     hash_a = {}
     hash_b = Hash.new(5)