1 files changed, 18 insertions, 0 deletions
diff --git a/spec/ruby/core/string/freeze_spec.rb b/spec/ruby/core/string/freeze_spec.rb
new file mode 100644
index 0000000000..8485e8de21
--- /dev/null
+++ b/spec/ruby/core/string/freeze_spec.rb
@@ -0,0 +1,18 @@
+# frozen_string_literal: false
+require_relative '../../spec_helper'
+
+describe "String#freeze" do
+
+  it "produces the same object whenever called on an instance of a literal in the source" do
+    "abc".freeze.should.equal? "abc".freeze
+  end
+
+  it "doesn't produce the same object for different instances of literals in the source" do
+    "abc".should_not.equal? "abc"
+  end
+
+  it "being a special form doesn't change the value of defined?" do
+    defined?("abc".freeze).should == "method"
+  end
+
+end