User can edit closed MR with deleted fork

Add test for closed MR without fork

Add view test visibility of Reopen and Close buttons

Fix controller tests and validation method

Fix missing space

Remove unused variables from test

closed_without_fork? method refactoring

Add information about missing fork

When closed MR without fork can't edit target branch

Tests for closed MR edit view

Fix indentation and rebase, refactoring

2 files changed, 81 insertions, 0 deletions

diff --git a/spec/views/projects/merge_requests/edit.html.haml_spec.rb b/spec/views/projects/merge_requests/edit.html.haml_spec.rb
new file mode 100644
index 00000000000..d7a1a2447ea
--- /dev/null
+++ b/spec/views/projects/merge_requests/edit.html.haml_spec.rb
@@ -0,0 +1,41 @@
+require 'spec_helper'
+
+describe 'projects/merge_requests/edit.html.haml' do
+  include Devise::TestHelpers
+
+  let(:user) { create(:user) }
+  let(:project) { create(:project) }
+  let(:fork_project) { create(:project, forked_from_project: project) }
+  let(:closed_merge_request) do
+    create(:closed_merge_request,
+      source_project: fork_project,
+      target_project: project,
+      author: user)
+  end
+  let(:unlink_project) { Projects::UnlinkForkService.new(fork_project, user) }
+
+  before do
+    assign(:project, project)
+    assign(:merge_request, closed_merge_request)
+
+    allow(view).to receive(:can?).and_return(true)
+    allow(view).to receive(:current_user).and_return(User.find(closed_merge_request.author_id))
+  end
+
+  context 'when closed MR without fork' do
+    it "shows editable fields" do
+      unlink_project.execute
+      closed_merge_request.reload
+      render
+
+      expect(rendered).to have_field('merge_request[title]')
+      expect(rendered).to have_css('label', text: "Title")
+      expect(rendered).to have_field('merge_request[description]')
+      expect(rendered).to have_css('label', text: "Description")
+      expect(rendered).to have_css('label', text: "Assignee")
+      expect(rendered).to have_css('label', text: "Milestone")
+      expect(rendered).to have_css('label', text: "Labels")
+      expect(rendered).not_to have_css('label', text: "Target branch")
+    end
+  end
+end
diff --git a/spec/views/projects/merge_requests/show.html.haml_spec.rb b/spec/views/projects/merge_requests/show.html.haml_spec.rb
new file mode 100644
index 00000000000..ed12b730eeb
--- /dev/null
+++ b/spec/views/projects/merge_requests/show.html.haml_spec.rb
@@ -0,0 +1,40 @@
+require 'spec_helper'
+
+describe 'projects/merge_requests/show.html.haml' do
+  include Devise::TestHelpers
+
+  let(:project) { create(:project) }
+  let(:fork_project) { create(:project, forked_from_project: project) }
+  let(:merge_request) do
+    create(:merge_request,
+      source_project: fork_project,
+      source_branch: 'add-submodule-version-bump',
+      target_branch: 'master', target_project: project)
+  end
+
+  before do
+    assign(:project, project)
+    assign(:merge_request, merge_request)
+    assign(:commits_count, 0)
+
+    merge_request.close!
+    allow(view).to receive(:can?).and_return(true)
+  end
+
+  context 'closed MR' do
+    it 'shows Reopen button' do
+      render
+
+      expect(rendered).to have_css('a', visible: true, text: 'Reopen')
+      expect(rendered).to have_css('a', visible: false, text: 'Close')
+    end
+
+    it 'does not show Reopen button without fork' do
+      fork_project.destroy
+      render
+
+      expect(rendered).to have_css('a', visible: false, text: 'Reopen')
+      expect(rendered).to have_css('a', visible: false, text: 'Close')
+    end
+  end
+end