Merge branch 'jej-23867-use-mr-finder-instead-of-access-check' into 'security'

Replace MR access checks with use of MergeRequestsFinder

Split from !2024 to partially solve https://gitlab.com/gitlab-org/gitlab-ce/issues/23867

:warning: - Potentially untested
:bomb: - No test coverage
:traffic_light: - Test coverage of some sort exists (a test failed when error raised)
:vertical_traffic_light: - Test coverage of return value (a test failed when nil used)
:white_check_mark: - Permissions check tested

- [x] :bomb:  app/finders/notes_finder.rb:17
- [x] :warning:  app/views/layouts/nav/_project.html.haml:80 [`.count`]
- [x] :bomb:  app/controllers/concerns/creates_commit.rb:84
- [x] :traffic_light:  app/controllers/projects/commits_controller.rb:24
- [x] :traffic_light:  app/controllers/projects/compare_controller.rb:56
- [x] :vertical_traffic_light:  app/controllers/projects/discussions_controller.rb:29
- [x] :white_check_mark:  app/controllers/projects/todos_controller.rb:27
- [x] :vertical_traffic_light:  app/models/commit.rb:268
- [x] :white_check_mark: lib/gitlab/search_results.rb:71

- [x] https://dev.gitlab.org/gitlab/gitlabhq/merge_requests/2024/diffs#d1c10892daedb4d4dd3d4b12b6d071091eea83df_267_266 Memoize ` merged_merge_request(current_user)`
- [x] https://dev.gitlab.org/gitlab/gitlabhq/merge_requests/2024/diffs#d1c10892daedb4d4dd3d4b12b6d071091eea83df_248_247 Expected side effect for `merged_merge_request!`, consider `skip_authorization: true`.
- [x] https://dev.gitlab.org/gitlab/gitlabhq/merge_requests/2024/diffs#d1c10892daedb4d4dd3d4b12b6d071091eea83df_269_269 Scary use  of unchecked `merged_merge_request?`

See merge request !2033

1 files changed, 6 insertions, 5 deletions

diff --git a/spec/models/commit_spec.rb b/spec/models/commit_spec.rb
index eb482c7f913..0935fc0561c 100644
--- a/spec/models/commit_spec.rb
+++ b/spec/models/commit_spec.rb
@@ -179,25 +179,26 @@ eos
 
   describe '#reverts_commit?' do
     let(:another_commit) { double(:commit, revert_description: "This reverts commit #{commit.sha}") }
+    let(:user) { commit.author }
 
-    it { expect(commit.reverts_commit?(another_commit)).to be_falsy }
+    it { expect(commit.reverts_commit?(another_commit, user)).to be_falsy }
 
     context 'commit has no description' do
       before { allow(commit).to receive(:description?).and_return(false) }
 
-      it { expect(commit.reverts_commit?(another_commit)).to be_falsy }
+      it { expect(commit.reverts_commit?(another_commit, user)).to be_falsy }
     end
 
     context "another_commit's description does not revert commit" do
       before { allow(commit).to receive(:description).and_return("Foo Bar") }
 
-      it { expect(commit.reverts_commit?(another_commit)).to be_falsy }
+      it { expect(commit.reverts_commit?(another_commit, user)).to be_falsy }
     end
 
     context "another_commit's description reverts commit" do
       before { allow(commit).to receive(:description).and_return("Foo #{another_commit.revert_description} Bar") }
 
-      it { expect(commit.reverts_commit?(another_commit)).to be_truthy }
+      it { expect(commit.reverts_commit?(another_commit, user)).to be_truthy }
     end
 
     context "another_commit's description reverts merged merge request" do
@@ -207,7 +208,7 @@ eos
         allow(commit).to receive(:description).and_return("Foo #{another_commit.revert_description} Bar")
       end
 
-      it { expect(commit.reverts_commit?(another_commit)).to be_truthy }
+      it { expect(commit.reverts_commit?(another_commit, user)).to be_truthy }
     end
   end