3 files changed, 173 insertions, 0 deletions
diff --git a/spec/features/search_spec.rb b/spec/features/search_spec.rb
index a05b83959fb..0fe5a897565 100644
--- a/spec/features/search_spec.rb
+++ b/spec/features/search_spec.rb
@@ -211,4 +211,44 @@ describe "Search", feature: true  do
       end
     end
   end
+
+  describe 'search for commits' do
+    before do
+      visit search_path(project_id: project.id)
+    end
+
+    it 'redirects to commit page when search by sha and only commit found' do
+      fill_in 'search', with: '6d394385cf567f80a8fd85055db1ab4c5295806f'
+
+      click_button 'Search'
+
+      expect(page).to have_current_path(namespace_project_commit_path(project.namespace, project, '6d394385cf567f80a8fd85055db1ab4c5295806f'))
+    end
+
+    it 'redirects to single commit regardless of query case' do
+      fill_in 'search', with: '6D394385cf'
+
+      click_button 'Search'
+
+      expect(page).to have_current_path(namespace_project_commit_path(project.namespace, project, '6d394385cf567f80a8fd85055db1ab4c5295806f'))
+    end
+
+    it 'holds on /search page when the only commit is found by message' do
+      create_commit('Message referencing another sha: "deadbeef" ', project, user, 'master')
+
+      fill_in 'search', with: 'deadbeef'
+      click_button 'Search'
+
+      expect(page).to have_current_path('/search', only_path: true)
+    end
+
+    it 'shows multiple matching commits' do
+      fill_in 'search', with: 'See merge request'
+
+      click_button 'Search'
+      click_link 'Commits'
+
+      expect(page).to have_selector('.commit-row-description', count: 9)
+    end
+  end
 end
diff --git a/spec/lib/gitlab/project_search_results_spec.rb b/spec/lib/gitlab/project_search_results_spec.rb
index 14ee386dba6..d94eb52f838 100644
--- a/spec/lib/gitlab/project_search_results_spec.rb
+++ b/spec/lib/gitlab/project_search_results_spec.rb
@@ -178,4 +178,119 @@ describe Gitlab::ProjectSearchResults, lib: true do
       expect(results.objects('notes')).not_to include note
     end
   end
+
+  # Examples for commit access level test
+  #
+  # params:
+  # * search_phrase
+  # * commit
+  #
+  shared_examples 'access restricted commits' do
+    context 'when project is internal' do
+      let(:project) { create(:project, :internal) }
+
+      it 'does not search if user is not authenticated' do
+        commits = described_class.new(nil, project, search_phrase).objects('commits')
+
+        expect(commits).to be_empty
+      end
+
+      it 'searches if user is authenticated' do
+        commits = described_class.new(user, project, search_phrase).objects('commits')
+
+        expect(commits).to contain_exactly commit
+      end
+    end
+
+    context 'when project is private' do
+      let!(:creator) { create(:user, username: 'private-project-author') }
+      let!(:private_project) { create(:project, :private, creator: creator, namespace: creator.namespace) }
+      let(:team_master) do
+        user = create(:user, username: 'private-project-master')
+        private_project.team << [user, :master]
+        user
+      end
+      let(:team_reporter) do
+        user = create(:user, username: 'private-project-reporter')
+        private_project.team << [user, :reporter]
+        user
+      end
+
+      it 'does not show commit to stranger' do
+        commits = described_class.new(nil, private_project, search_phrase).objects('commits')
+
+        expect(commits).to be_empty
+      end
+
+      context 'team access' do
+        it 'shows commit to creator' do
+          commits = described_class.new(creator, private_project, search_phrase).objects('commits')
+
+          expect(commits).to contain_exactly commit
+        end
+
+        it 'shows commit to master' do
+          commits = described_class.new(team_master, private_project, search_phrase).objects('commits')
+
+          expect(commits).to contain_exactly commit
+        end
+
+        it 'shows commit to reporter' do
+          commits = described_class.new(team_reporter, private_project, search_phrase).objects('commits')
+
+          expect(commits).to contain_exactly commit
+        end
+      end
+    end
+  end
+
+  describe 'commit search' do
+    context 'by commit message' do
+      let(:project) { create(:project, :public) }
+      let(:commit) { project.repository.commit('59e29889be61e6e0e5e223bfa9ac2721d31605b8') }
+      let(:message) { 'Sorry, I did a mistake' }
+
+      it 'finds commit by message' do
+        commits = described_class.new(user, project, message).objects('commits')
+
+        expect(commits).to contain_exactly commit
+      end
+
+      it 'handles when no commit match' do
+        commits = described_class.new(user, project, 'not really an existing description').objects('commits')
+
+        expect(commits).to be_empty
+      end
+
+      it_behaves_like 'access restricted commits' do
+        let(:search_phrase) { message }
+        let(:commit) { project.repository.commit('59e29889be61e6e0e5e223bfa9ac2721d31605b8') }
+      end
+    end
+
+    context 'by commit hash' do
+      let(:project) { create(:project, :public) }
+      let(:commit) { project.repository.commit('0b4bc9a') }
+      commit_hashes = { short: '0b4bc9a', full: '0b4bc9a49b562e85de7cc9e834518ea6828729b9' }
+
+      commit_hashes.each do |type, commit_hash|
+        it "shows commit by #{type} hash id" do
+          commits = described_class.new(user, project, commit_hash).objects('commits')
+
+          expect(commits).to contain_exactly commit
+        end
+      end
+
+      it 'handles not existing commit hash correctly' do
+        commits = described_class.new(user, project, 'deadbeef').objects('commits')
+
+        expect(commits).to be_empty
+      end
+
+      it_behaves_like 'access restricted commits' do
+        let(:search_phrase) { '0b4bc9a49' }
+        let(:commit) { project.repository.commit('0b4bc9a') }
+      end
+    end
+  end
 end
diff --git a/spec/models/commit_spec.rb b/spec/models/commit_spec.rb
index 0d425ab7fd4..b2202f0fd44 100644
--- a/spec/models/commit_spec.rb
+++ b/spec/models/commit_spec.rb
@@ -351,4 +351,22 @@ eos
       expect(commit).not_to be_work_in_progress
     end
   end
+
+  describe '.valid_hash?' do
+    it 'checks hash contents' do
+      expect(described_class.valid_hash?('abcdef01239ABCDEF')).to be true
+      expect(described_class.valid_hash?("abcdef01239ABCD\nEF")).to be false
+      expect(described_class.valid_hash?(' abcdef01239ABCDEF ')).to be false
+      expect(described_class.valid_hash?('Gabcdef01239ABCDEF')).to be false
+      expect(described_class.valid_hash?('gabcdef01239ABCDEF')).to be false
+      expect(described_class.valid_hash?('-abcdef01239ABCDEF')).to be false
+    end
+
+    it 'checks hash length' do
+      expect(described_class.valid_hash?('a' * 6)).to be false
+      expect(described_class.valid_hash?('a' * 7)).to be true
+      expect(described_class.valid_hash?('a' * 40)).to be true
+      expect(described_class.valid_hash?('a' * 41)).to be false
+    end
+  end
 end