diff --git a/lib/safer_rails_console/patches/sandbox/auto_rollback.rb b/lib/safer_rails_console/patches/sandbox/auto_rollback.rb
index dd83984..ffdc296 100644
--- a/lib/safer_rails_console/patches/sandbox/auto_rollback.rb
+++ b/lib/safer_rails_console/patches/sandbox/auto_rollback.rb
@@ -12,7 +12,7 @@ def self.rollback_and_begin_new_transaction
 
         def self.handle_and_reraise_exception(e)
           if e.message.include?('PG::ReadOnlySqlTransaction')
-            puts color_text('An operation could not be completed due to read-only mode.', RED) # rubocop:disable Rails/Output
+            puts color_text('An operation could not be completed due to read-only mode.', Colors::RED) # rubocop:disable Rails/Output
           else
             rollback_and_begin_new_transaction
           end
diff --git a/spec/safer_rails_console/patches/sandbox/auto_rollback_spec.rb b/spec/safer_rails_console/patches/sandbox/auto_rollback_spec.rb
new file mode 100644
index 0000000..758131b
--- /dev/null
+++ b/spec/safer_rails_console/patches/sandbox/auto_rollback_spec.rb
@@ -0,0 +1,45 @@
+# require 'safer_rails_console/patches/sandbox/auto_rollback'
+
+describe "::SaferRailsConsole::Patches::Sandbox::AutoRollback" do
+  describe ".handle_and_reraise_exception" do
+    let(:mocked_ar_connection) { spy('ar_connection') } # rubocop:disable RSpec/VerifiedDoubles
+
+    # mock ActiveRecord::Base.connection
+    before do
+      ::SaferRailsConsole::Console.initialize_sandbox
+      module ActiveRecord
+        module Base
+        end
+      end
+      allow(::ActiveRecord::Base).to receive(:connection).and_return(mocked_ar_connection)
+    end
+
+    after do
+      Object.send(:remove_const, :ActiveRecord)
+    end
+
+    context "when raising a PG::ReadOnlySqlTransaction exception" do
+      let(:error) { RuntimeError.new('Beware of the PG::ReadOnlySqlTransaction exception!') }
+
+      it "outputs a message on stdout and forwards the exception" do
+        expect do
+          ::SaferRailsConsole::Patches::Sandbox::AutoRollback.handle_and_reraise_exception(error)
+        end.to raise_exception(error)
+           .and output(/An operation could not be completed due to read-only mode./).to_stdout
+      end
+    end
+
+    context "when raising a classic exception" do
+      let(:error) { RuntimeError.new('normal error') }
+
+      it "rollbacks, begins a new transaction and forwards the exception" do
+        expect do
+          ::SaferRailsConsole::Patches::Sandbox::AutoRollback.handle_and_reraise_exception(error)
+        end.to raise_exception(error)
+
+        expect(mocked_ar_connection).to have_received(:rollback_db_transaction).ordered
+        expect(mocked_ar_connection).to have_received(:begin_db_transaction).ordered
+      end
+    end
+  end
+end