1 files changed, 117 insertions, 0 deletions
diff --git a/spec/models/list_spec.rb b/spec/models/list_spec.rb
new file mode 100644
index 00000000000..9e1a52011c3
--- /dev/null
+++ b/spec/models/list_spec.rb
@@ -0,0 +1,117 @@
+require 'rails_helper'
+
+describe List do
+  describe 'relationships' do
+    it { is_expected.to belong_to(:board) }
+    it { is_expected.to belong_to(:label) }
+  end
+
+  describe 'validations' do
+    it { is_expected.to validate_presence_of(:board) }
+    it { is_expected.to validate_presence_of(:label) }
+    it { is_expected.to validate_presence_of(:list_type) }
+    it { is_expected.to validate_presence_of(:position) }
+    it { is_expected.to validate_numericality_of(:position).only_integer.is_greater_than_or_equal_to(0) }
+
+    it 'validates uniqueness of label scoped to board_id' do
+      create(:list)
+
+      expect(subject).to validate_uniqueness_of(:label_id).scoped_to(:board_id)
+    end
+
+    context 'when list_type is set to backlog' do
+      subject { described_class.new(list_type: :backlog) }
+
+      it { is_expected.not_to validate_presence_of(:label) }
+      it { is_expected.not_to validate_presence_of(:position) }
+    end
+
+    context 'when list_type is set to done' do
+      subject { described_class.new(list_type: :done) }
+
+      it { is_expected.not_to validate_presence_of(:label) }
+      it { is_expected.not_to validate_presence_of(:position) }
+    end
+  end
+
+  describe '#destroy' do
+    it 'can be destroyed when when list_type is set to label' do
+      subject = create(:list)
+
+      expect(subject.destroy).to be_truthy
+    end
+
+    it 'can not be destroyed when list_type is set to backlog' do
+      subject = create(:backlog_list)
+
+      expect(subject.destroy).to be_falsey
+    end
+
+    it 'can not be destroyed when when list_type is set to done' do
+      subject = create(:done_list)
+
+      expect(subject.destroy).to be_falsey
+    end
+  end
+
+  describe '#destroyable?' do
+    it 'retruns true when list_type is set to label' do
+      subject.list_type = :label
+
+      expect(subject).to be_destroyable
+    end
+
+    it 'retruns false when list_type is set to backlog' do
+      subject.list_type = :backlog
+
+      expect(subject).not_to be_destroyable
+    end
+
+    it 'retruns false when list_type is set to done' do
+      subject.list_type = :done
+
+      expect(subject).not_to be_destroyable
+    end
+  end
+
+  describe '#movable?' do
+    it 'retruns true when list_type is set to label' do
+      subject.list_type = :label
+
+      expect(subject).to be_movable
+    end
+
+    it 'retruns false when list_type is set to backlog' do
+      subject.list_type = :backlog
+
+      expect(subject).not_to be_movable
+    end
+
+    it 'retruns false when list_type is set to done' do
+      subject.list_type = :done
+
+      expect(subject).not_to be_movable
+    end
+  end
+
+  describe '#title' do
+    it 'returns label name when list_type is set to label' do
+      subject.list_type = :label
+      subject.label = Label.new(name: 'Development')
+
+      expect(subject.title).to eq 'Development'
+    end
+
+    it 'returns Backlog when list_type is set to backlog' do
+      subject.list_type = :backlog
+
+      expect(subject.title).to eq 'Backlog'
+    end
+
+    it 'returns Done when list_type is set to done' do
+      subject.list_type = :done
+
+      expect(subject.title).to eq 'Done'
+    end
+  end
+end