Fix RuboCop::MagicComment#valid_shareable_constant_value?

changelog/fix_fix_valid_shareable_constant_value.md

@@ -0,0 +1 @@
+* [#9598](https://github.com/rubocop/rubocop/pull/9598): Fix RuboCop::MagicComment#valid_shareable_constant_value?. ([@kachick][])

lib/rubocop/magic_comment.rb

@@ -47,7 +47,7 @@ def valid_literal_value?
     end
 
     def valid_shareable_constant_value?
-      %w[none literal experimental_everything experimental_copy].include?(shareable_constant_values)
+      %w[none literal experimental_everything experimental_copy].include?(shareable_constant_value)
     end
 
     # Was a magic comment for the frozen string literal found?

spec/rubocop/magic_comment_spec.rb

@@ -151,4 +151,44 @@
   include_examples 'magic comment',
                    '# vim:fileencoding=utf-8',
                    encoding: nil
+
+  describe '#valid_shareable_constant_value?' do
+    subject { described_class.parse(comment).valid_shareable_constant_value? }
+
+    context 'when given comment specified as `none`' do
+      let(:comment) { '# shareable_constant_value: none' }
+
+      it { is_expected.to eq(true) }
+    end
+
+    context 'when given comment specified as `literal`' do
+      let(:comment) { '# shareable_constant_value: literal' }
+
+      it { is_expected.to eq(true) }
+    end
+
+    context 'when given comment specified as `experimental_everything`' do
+      let(:comment) { '# shareable_constant_value: experimental_everything' }
+
+      it { is_expected.to eq(true) }
+    end
+
+    context 'when given comment specified as `experimental_copy`' do
+      let(:comment) { '# shareable_constant_value: experimental_copy' }
+
+      it { is_expected.to eq(true) }
+    end
+
+    context 'when given comment specified as unknown value' do
+      let(:comment) { '# shareable_constant_value: unknown' }
+
+      it { is_expected.to eq(false) }
+    end
+
+    context 'when given comment is not specified' do
+      let(:comment) { '' }
+
+      it { is_expected.to eq(false) }
+    end
+  end
 end