Increase utils test coverage

spec/utils/copy_spec.rb

@@ -0,0 +1,31 @@
+# frozen_string_literal: true
+
+RSpec.describe ApexCharts::Utils::Copy do
+  context '.deep_copy' do
+    let(:hash) {
+      {
+        a: {
+          b: ['1', '2', {c: '3'}]
+        }
+      }
+    }
+
+    before do
+      class DummyClass
+        include ApexCharts::Utils::Copy
+
+        def copy_data(hash)
+          deep_copy(hash)
+        end
+      end
+    end
+
+    it 'copies hashes and arrays deeply' do
+      dc = DummyClass.new
+      dup_hash = dc.copy_data(hash)
+      hash[:a][:b][2][:c] = 3
+
+      expect(dup_hash.dig(:a, :b, 2, :c)).to eq '3'
+    end
+  end
+end

spec/utils/hash_spec.rb

@@ -21,8 +21,8 @@
           b: {
             d: 'four'
           },
-          e: 'five',
-          f: 'six'
+          e: 'six',
+          f: 'seven'
         },
         g: 7
       }
@@ -35,8 +35,8 @@
             c: '3',
             d: 'four'
           },
-          e: 'five',
-          f: 'six'
+          e: 'six',
+          f: 'seven'
         },
         f: :six,
         g: 7