1 files changed, 109 insertions, 0 deletions
diff --git a/spec/services/git/wiki_push_service/change_spec.rb b/spec/services/git/wiki_push_service/change_spec.rb
new file mode 100644
index 00000000000..547874270ab
--- /dev/null
+++ b/spec/services/git/wiki_push_service/change_spec.rb
@@ -0,0 +1,109 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe Git::WikiPushService::Change do
+  subject { described_class.new(project_wiki, change, raw_change) }
+
+  let(:project_wiki) { double('ProjectWiki') }
+  let(:raw_change) { double('RawChange', new_path: new_path, old_path: old_path, operation: operation) }
+  let(:change) { { oldrev: generate(:sha), newrev: generate(:sha) } }
+
+  let(:new_path) do
+    case operation
+    when :deleted
+      nil
+    else
+      generate(:wiki_filename)
+    end
+  end
+
+  let(:old_path) do
+    case operation
+    when :added
+      nil
+    when :deleted, :renamed
+      generate(:wiki_filename)
+    else
+      new_path
+    end
+  end
+
+  describe '#page' do
+    context 'the page does not exist' do
+      before do
+        expect(project_wiki).to receive(:find_page).with(String, String).and_return(nil)
+      end
+
+      %i[added deleted renamed modified].each do |op|
+        context "the operation is #{op}" do
+          let(:operation) { op }
+
+          it { is_expected.to have_attributes(page: be_nil) }
+        end
+      end
+    end
+
+    context 'the page can be found' do
+      let(:wiki_page) { double('WikiPage') }
+
+      before do
+        expect(project_wiki).to receive(:find_page).with(slug, revision).and_return(wiki_page)
+      end
+
+      context 'the page has been deleted' do
+        let(:operation) { :deleted }
+        let(:slug) { old_path.chomp('.md') }
+        let(:revision) { change[:oldrev] }
+
+        it { is_expected.to have_attributes(page: wiki_page) }
+      end
+
+      %i[added renamed modified].each do |op|
+        let(:operation) { op }
+        let(:slug) { new_path.chomp('.md') }
+        let(:revision) { change[:newrev] }
+
+        it { is_expected.to have_attributes(page: wiki_page) }
+      end
+    end
+  end
+
+  describe '#last_known_slug' do
+    context 'the page has been created' do
+      let(:operation) { :added }
+
+      it { is_expected.to have_attributes(last_known_slug: new_path.chomp('.md')) }
+    end
+
+    %i[renamed modified deleted].each do |op|
+      context "the operation is #{op}" do
+        let(:operation) { op }
+
+        it { is_expected.to have_attributes(last_known_slug: old_path.chomp('.md')) }
+      end
+    end
+  end
+
+  describe '#event_action' do
+    context 'the page is deleted' do
+      let(:operation) { :deleted }
+
+      it { is_expected.to have_attributes(event_action: Event::DESTROYED) }
+    end
+
+    context 'the page is added' do
+      let(:operation) { :added }
+
+      it { is_expected.to have_attributes(event_action: Event::CREATED) }
+    end
+
+    %i[renamed modified].each do |op|
+      context "the page is #{op}" do
+        let(:operation) { op }
+
+        it { is_expected.to have_attributes(event_action: Event::UPDATED) }
+      end
+    end
+  end
+end