1 files changed, 144 insertions, 0 deletions
diff --git a/spec/models/integrations/chat_message/merge_message_spec.rb b/spec/models/integrations/chat_message/merge_message_spec.rb
new file mode 100644
index 00000000000..ed1ad6837e2
--- /dev/null
+++ b/spec/models/integrations/chat_message/merge_message_spec.rb
@@ -0,0 +1,144 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe Integrations::ChatMessage::MergeMessage do
+  subject { described_class.new(args) }
+
+  let(:args) do
+    {
+      user: {
+          name: 'Test User',
+          username: 'test.user',
+          avatar_url: 'http://someavatar.com'
+      },
+      project_name: 'project_name',
+      project_url: 'http://somewhere.com',
+
+      object_attributes: {
+        title: "Merge request title\nSecond line",
+        id: 10,
+        iid: 100,
+        assignee_id: 1,
+        url: 'http://url.com',
+        state: 'opened',
+        description: 'merge request description',
+        source_branch: 'source_branch',
+        target_branch: 'target_branch'
+      }
+    }
+  end
+
+  context 'without markdown' do
+    let(:color) { '#345' }
+
+    context 'open' do
+      it 'returns a message regarding opening of merge requests' do
+        expect(subject.pretext).to eq(
+          'Test User (test.user) opened merge request <http://somewhere.com/-/merge_requests/100|!100 *Merge request title*> in <http://somewhere.com|project_name>')
+        expect(subject.attachments).to be_empty
+      end
+    end
+
+    context 'close' do
+      before do
+        args[:object_attributes][:state] = 'closed'
+      end
+      it 'returns a message regarding closing of merge requests' do
+        expect(subject.pretext).to eq(
+          'Test User (test.user) closed merge request <http://somewhere.com/-/merge_requests/100|!100 *Merge request title*> in <http://somewhere.com|project_name>')
+        expect(subject.attachments).to be_empty
+      end
+    end
+  end
+
+  context 'with markdown' do
+    before do
+      args[:markdown] = true
+    end
+
+    context 'open' do
+      it 'returns a message regarding opening of merge requests' do
+        expect(subject.pretext).to eq(
+          'Test User (test.user) opened merge request [!100 *Merge request title*](http://somewhere.com/-/merge_requests/100) in [project_name](http://somewhere.com)')
+        expect(subject.attachments).to be_empty
+        expect(subject.activity).to eq({
+          title: 'Merge request opened by Test User (test.user)',
+          subtitle: 'in [project_name](http://somewhere.com)',
+          text: '[!100 *Merge request title*](http://somewhere.com/-/merge_requests/100)',
+          image: 'http://someavatar.com'
+        })
+      end
+    end
+
+    context 'close' do
+      before do
+        args[:object_attributes][:state] = 'closed'
+      end
+
+      it 'returns a message regarding closing of merge requests' do
+        expect(subject.pretext).to eq(
+          'Test User (test.user) closed merge request [!100 *Merge request title*](http://somewhere.com/-/merge_requests/100) in [project_name](http://somewhere.com)')
+        expect(subject.attachments).to be_empty
+        expect(subject.activity).to eq({
+          title: 'Merge request closed by Test User (test.user)',
+          subtitle: 'in [project_name](http://somewhere.com)',
+          text: '[!100 *Merge request title*](http://somewhere.com/-/merge_requests/100)',
+          image: 'http://someavatar.com'
+        })
+      end
+    end
+  end
+
+  context 'approved' do
+    before do
+      args[:object_attributes][:action] = 'approved'
+    end
+
+    it 'returns a message regarding completed approval of merge requests' do
+      expect(subject.pretext).to eq(
+        'Test User (test.user) approved merge request <http://somewhere.com/-/merge_requests/100|!100 *Merge request title*> '\
+        'in <http://somewhere.com|project_name>')
+      expect(subject.attachments).to be_empty
+    end
+  end
+
+  context 'unapproved' do
+    before do
+      args[:object_attributes][:action] = 'unapproved'
+    end
+
+    it 'returns a message regarding revocation of completed approval of merge requests' do
+      expect(subject.pretext).to eq(
+        'Test User (test.user) unapproved merge request <http://somewhere.com/-/merge_requests/100|!100 *Merge request title*> '\
+        'in <http://somewhere.com|project_name>')
+      expect(subject.attachments).to be_empty
+    end
+  end
+
+  context 'approval' do
+    before do
+      args[:object_attributes][:action] = 'approval'
+    end
+
+    it 'returns a message regarding added approval of merge requests' do
+      expect(subject.pretext).to eq(
+        'Test User (test.user) added their approval to merge request <http://somewhere.com/-/merge_requests/100|!100 *Merge request title*> '\
+        'in <http://somewhere.com|project_name>')
+      expect(subject.attachments).to be_empty
+    end
+  end
+
+  context 'unapproval' do
+    before do
+      args[:object_attributes][:action] = 'unapproval'
+    end
+
+    it 'returns a message regarding revoking approval of merge requests' do
+      expect(subject.pretext).to eq(
+        'Test User (test.user) removed their approval from merge request <http://somewhere.com/-/merge_requests/100|!100 *Merge request title*> '\
+        'in <http://somewhere.com|project_name>')
+      expect(subject.attachments).to be_empty
+    end
+  end
+end