Change issues sentence to use natural sorting

2 files changed, 94 insertions, 5 deletions

diff --git a/spec/helpers/merge_requests_helper_spec.rb b/spec/helpers/merge_requests_helper_spec.rb
index 25f23826648..e9037749ef2 100644
--- a/spec/helpers/merge_requests_helper_spec.rb
+++ b/spec/helpers/merge_requests_helper_spec.rb
@@ -22,24 +22,51 @@ describe MergeRequestsHelper do
   end
 
   describe '#issues_sentence' do
+    let(:project) { create :project }
+
     subject { issues_sentence(issues) }
     let(:issues) do
-      [build(:issue, iid: 1), build(:issue, iid: 2), build(:issue, iid: 3)]
+      [build(:issue, iid: 2, project: project),
+       build(:issue, iid: 3, project: project),
+       build(:issue, iid: 1, project: project)]
     end
 
-    it { is_expected.to eq('#1, #2, and #3') }
+    it do
+      @project = project
+
+      is_expected.to eq('#1, #2, and #3')
+    end
 
     context 'for JIRA issues' do
       let(:project) { create(:empty_project) }
       let(:issues) do
         [
-          ExternalIssue.new('JIRA-123', project),
           ExternalIssue.new('JIRA-456', project),
-          ExternalIssue.new('FOOBAR-7890', project)
+          ExternalIssue.new('FOOBAR-7890', project),
+          ExternalIssue.new('JIRA-123', project)
         ]
       end
 
-      it { is_expected.to eq('FOOBAR-7890, JIRA-123, and JIRA-456') }
+      it do
+        @project = project
+        is_expected.to eq('FOOBAR-7890, JIRA-123, and JIRA-456')
+      end
+    end
+
+    context 'for issues from multiple namespaces' do
+      let(:project) { create(:project) }
+      let(:other_project) { create(:project) }
+      let(:issues) do
+        [build(:issue, iid: 2, project: project),
+         build(:issue, iid: 3, project: other_project),
+         build(:issue, iid: 1, project: project)]
+      end
+
+      it do
+        @project = project
+        
+        is_expected.to eq("#1, #2, and #{other_project.namespace.path}/#{other_project.path}#3")
+      end
     end
   end
 
diff --git a/spec/lib/gitlab/issuable_sorter_spec.rb b/spec/lib/gitlab/issuable_sorter_spec.rb
new file mode 100644
index 00000000000..c9a434b2bcf
--- /dev/null
+++ b/spec/lib/gitlab/issuable_sorter_spec.rb
@@ -0,0 +1,62 @@
+require 'spec_helper'
+
+describe Gitlab::IssuableSorter, lib: true do
+  let(:namespace1) { build(:namespace, id: 1) }
+  let(:project1) { build(:project, id: 1, namespace: namespace1) }
+
+  let(:project2) { build(:project, id: 2, path: "a", namespace: project1.namespace) }
+  let(:project3) { build(:project, id: 3, path: "b", namespace: project1.namespace) }
+
+  let(:namespace2) { build(:namespace, id: 2, path: "a") }
+  let(:namespace3) { build(:namespace, id: 3, path: "b") }
+  let(:project4) { build(:project, id: 4, path: "a", namespace: namespace2) }
+  let(:project5) { build(:project, id: 5, path: "b", namespace: namespace2) }
+  let(:project6) { build(:project, id: 6, path: "a", namespace: namespace3) }
+
+  let(:unsorted) { [sorted[2], sorted[3], sorted[0], sorted[1]] }
+
+  let(:sorted) do
+    [build(:issue, iid: 1, project: project1),
+     build(:issue, iid: 2, project: project1),
+     build(:issue, iid: 10, project: project1),
+     build(:issue, iid: 20, project: project1)]
+  end
+
+  it 'sorts references by a given key' do
+    expect(described_class.sort(project1, unsorted)).to eq(sorted)
+  end
+
+  context 'for JIRA issues' do
+    let(:sorted) do
+      [ExternalIssue.new('JIRA-1', project1),
+       ExternalIssue.new('JIRA-2', project1),
+       ExternalIssue.new('JIRA-10', project1),
+       ExternalIssue.new('JIRA-20', project1)]
+    end
+
+    it 'sorts references by a given key' do
+      expect(described_class.sort(project1, unsorted)).to eq(sorted)
+    end
+  end
+
+  context 'for references from multiple projects and namespaces' do
+    let(:sorted) do
+      [build(:issue, iid: 1, project: project1),
+       build(:issue, iid: 2, project: project1),
+       build(:issue, iid: 10, project: project1),
+       build(:issue, iid: 1, project: project2),
+       build(:issue, iid: 1, project: project3),
+       build(:issue, iid: 1, project: project4),
+       build(:issue, iid: 1, project: project5),
+       build(:issue, iid: 1, project: project6)]
+    end
+    let(:unsorted) do
+      [sorted[3], sorted[1], sorted[4], sorted[2],
+       sorted[6], sorted[5], sorted[0], sorted[7]]
+    end
+
+    it 'sorts references by project and then by a given key' do
+      expect(subject.sort(project1, unsorted)).to eq(sorted)
+    end
+  end
+end