1 files changed, 26 insertions, 0 deletions
diff --git a/spec/lib/gitlab/database/type/json_pg_safe_spec.rb b/spec/lib/gitlab/database/type/json_pg_safe_spec.rb
new file mode 100644
index 00000000000..91dc6f39aa7
--- /dev/null
+++ b/spec/lib/gitlab/database/type/json_pg_safe_spec.rb
@@ -0,0 +1,26 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe Gitlab::Database::Type::JsonPgSafe do
+  let(:type) { described_class.new }
+
+  describe '#serialize' do
+    using RSpec::Parameterized::TableSyntax
+
+    subject { type.serialize(value) }
+
+    where(:value, :json) do
+      nil                            | nil
+      1                              | '1'
+      1.0                            | '1.0'
+      "str\0ing\u0000"               | '"string"'
+      ["\0arr", "a\u0000y"]          | '["arr","ay"]'
+      { "key\0" => "value\u0000\0" } | '{"key":"value"}'
+    end
+
+    with_them do
+      it { is_expected.to eq(json) }
+    end
+  end
+end