1 files changed, 98 insertions, 0 deletions
diff --git a/spec/models/design_management/design_action_spec.rb b/spec/models/design_management/design_action_spec.rb
new file mode 100644
index 00000000000..da4ad41dfcb
--- /dev/null
+++ b/spec/models/design_management/design_action_spec.rb
@@ -0,0 +1,98 @@
+# frozen_string_literal: true
+require 'spec_helper'
+
+describe DesignManagement::DesignAction do
+  describe 'validations' do
+    describe 'the design' do
+      let(:fail_validation) { raise_error(/design/i) }
+
+      it 'must not be nil' do
+        expect { described_class.new(nil, :create, :foo) }.to fail_validation
+      end
+    end
+
+    describe 'the action' do
+      let(:fail_validation) { raise_error(/action/i) }
+
+      it 'must not be nil' do
+        expect { described_class.new(double, nil, :foo) }.to fail_validation
+      end
+
+      it 'must be a known action' do
+        expect { described_class.new(double, :wibble, :foo) }.to fail_validation
+      end
+    end
+
+    describe 'the content' do
+      context 'content is necesary' do
+        let(:fail_validation) { raise_error(/needs content/i) }
+
+        %i[create update].each do |action|
+          it "must not be nil if the action is #{action}" do
+            expect { described_class.new(double, action, nil) }.to fail_validation
+          end
+        end
+      end
+
+      context 'content is forbidden' do
+        let(:fail_validation) { raise_error(/forbids content/i) }
+
+        it "must not be nil if the action is delete" do
+          expect { described_class.new(double, :delete, :foo) }.to fail_validation
+        end
+      end
+    end
+  end
+
+  describe '#gitaly_action' do
+    let(:path) { 'some/path/somewhere' }
+    let(:design) { OpenStruct.new(full_path: path) }
+
+    subject { described_class.new(design, action, content) }
+
+    context 'the action needs content' do
+      let(:action) { :create }
+      let(:content) { :foo }
+
+      it 'produces a good gitaly action' do
+        expect(subject.gitaly_action).to eq(
+          action: action,
+          file_path: path,
+          content: content
+        )
+      end
+    end
+
+    context 'the action forbids content' do
+      let(:action) { :delete }
+      let(:content) { nil }
+
+      it 'produces a good gitaly action' do
+        expect(subject.gitaly_action).to eq(action: action, file_path: path)
+      end
+    end
+  end
+
+  describe '#issue_id' do
+    let(:issue_id) { :foo }
+    let(:design) { OpenStruct.new(issue_id: issue_id) }
+
+    subject { described_class.new(design, :delete) }
+
+    it 'delegates to the design' do
+      expect(subject.issue_id).to eq(issue_id)
+    end
+  end
+
+  describe '#performed' do
+    let(:design) { double }
+
+    subject { described_class.new(design, :delete) }
+
+    it 'calls design#clear_version_cache when the action has been performed' do
+      expect(design).to receive(:clear_version_cache)
+
+      subject.performed
+    end
+  end
+end