1 files changed, 41 insertions, 0 deletions
diff --git a/spec/lib/gitlab/database/type/color_spec.rb b/spec/lib/gitlab/database/type/color_spec.rb
new file mode 100644
index 00000000000..84fd8d0bbce
--- /dev/null
+++ b/spec/lib/gitlab/database/type/color_spec.rb
@@ -0,0 +1,41 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe ::Gitlab::Database::Type::Color do
+  subject(:type) { described_class.new }
+
+  let(:color) { ::Gitlab::Color.of('red') }
+
+  it 'serializes by calling #to_s' do
+    expect(type.serialize(color)).to eq(color.to_s)
+  end
+
+  it 'serializes nil to nil' do
+    expect(type.serialize(nil)).to be_nil
+  end
+
+  it 'casts by calling Color::new' do
+    expect(type.cast('#fff')).to eq(::Gitlab::Color.new('#fff'))
+  end
+
+  it 'accepts colors as arguments to cast' do
+    expect(type.cast(color)).to eq(color)
+  end
+
+  it 'allows nil database values' do
+    expect(type.cast(nil)).to be_nil
+  end
+
+  it 'tells us what is serializable' do
+    [nil, 'foo', color].each do |value|
+      expect(type.serializable?(value)).to be true
+    end
+  end
+
+  it 'tells us what is not serializable' do
+    [0, 3.2, true, Time.current, { some: 'hash' }].each do |value|
+      expect(type.serializable?(value)).to be false
+    end
+  end
+end