Address review comments

4 files changed, 244 insertions, 41 deletions

diff --git a/spec/models/concerns/discussion_on_diff_spec.rb b/spec/models/concerns/discussion_on_diff_spec.rb
new file mode 100644
index 00000000000..0002a00770f
--- /dev/null
+++ b/spec/models/concerns/discussion_on_diff_spec.rb
@@ -0,0 +1,24 @@
+require 'spec_helper'
+
+describe DiffDiscussion, DiscussionOnDiff, model: true do
+  subject { create(:diff_note_on_merge_request).to_discussion }
+
+  describe "#truncated_diff_lines" do
+    let(:truncated_lines) { subject.truncated_diff_lines }
+
+    context "when diff is greater than allowed number of truncated diff lines " do
+      it "returns fewer lines"  do
+        expect(subject.diff_lines.count).to be > described_class::NUMBER_OF_TRUNCATED_DIFF_LINES
+
+        expect(truncated_lines.count).to be <= described_class::NUMBER_OF_TRUNCATED_DIFF_LINES
+      end
+    end
+
+    context "when some diff lines are meta" do
+      it "returns no meta lines"  do
+        expect(subject.diff_lines).to include(be_meta)
+        expect(truncated_lines).not_to include(be_meta)
+      end
+    end
+  end
+end
diff --git a/spec/models/concerns/noteable_spec.rb b/spec/models/concerns/noteable_spec.rb
index 0a181c008f3..92cc8859a8c 100644
--- a/spec/models/concerns/noteable_spec.rb
+++ b/spec/models/concerns/noteable_spec.rb
@@ -1,14 +1,14 @@
 require 'spec_helper'
 
 describe MergeRequest, Noteable, model: true do
-  let(:merge_request) { create(:merge_request) }
-  let(:project) { merge_request.project }
-  let!(:active_diff_note1) { create(:diff_note_on_merge_request, project: project, noteable: merge_request) }
-  let!(:active_diff_note2) { create(:diff_note_on_merge_request, project: project, noteable: merge_request, in_reply_to: active_diff_note1) }
-  let!(:active_diff_note3) { create(:diff_note_on_merge_request, project: project, noteable: merge_request, position: active_position2) }
-  let!(:outdated_diff_note1) { create(:diff_note_on_merge_request, project: project, noteable: merge_request, position: outdated_position) }
-  let!(:outdated_diff_note2) { create(:diff_note_on_merge_request, project: project, noteable: merge_request, position: outdated_position, in_reply_to: outdated_diff_note1) }
-  let!(:discussion_note1) { create(:discussion_note_on_merge_request, project: project, noteable: merge_request) }
+  let!(:active_diff_note1) { create(:diff_note_on_merge_request) }
+  let(:project) { active_diff_note1.project }
+  subject { active_diff_note1.noteable }
+  let!(:active_diff_note2) { create(:diff_note_on_merge_request, project: project, noteable: subject, in_reply_to: active_diff_note1) }
+  let!(:active_diff_note3) { create(:diff_note_on_merge_request, project: project, noteable: subject, position: active_position2) }
+  let!(:outdated_diff_note1) { create(:diff_note_on_merge_request, project: project, noteable: subject, position: outdated_position) }
+  let!(:outdated_diff_note2) { create(:diff_note_on_merge_request, project: project, noteable: subject, in_reply_to: outdated_diff_note1) }
+  let!(:discussion_note1) { create(:discussion_note_on_merge_request, project: project, noteable: subject) }
   let!(:discussion_note2) { create(:discussion_note_on_merge_request, in_reply_to: discussion_note1) }
   let!(:commit_diff_note1) { create(:diff_note_on_commit, project: project) }
   let!(:commit_diff_note2) { create(:diff_note_on_commit, project: project, in_reply_to: commit_diff_note1) }
@@ -17,8 +17,8 @@ describe MergeRequest, Noteable, model: true do
   let!(:commit_discussion_note1) { create(:discussion_note_on_commit, project: project) }
   let!(:commit_discussion_note2) { create(:discussion_note_on_commit, in_reply_to: commit_discussion_note1) }
   let!(:commit_discussion_note3) { create(:discussion_note_on_commit, project: project) }
-  let!(:note1) { create(:note, project: project, noteable: merge_request) }
-  let!(:note2) { create(:note, project: project, noteable: merge_request) }
+  let!(:note1) { create(:note, project: project, noteable: subject) }
+  let!(:note2) { create(:note, project: project, noteable: subject) }
 
   let(:active_position2) do
     Gitlab::Diff::Position.new(
@@ -26,7 +26,7 @@ describe MergeRequest, Noteable, model: true do
       new_path: "files/ruby/popen.rb",
       old_line: 16,
       new_line: 22,
-      diff_refs: merge_request.diff_refs
+      diff_refs: subject.diff_refs
     )
   end
 
@@ -41,29 +41,29 @@ describe MergeRequest, Noteable, model: true do
   end
 
   describe '#discussions' do
-    subject { merge_request.discussions }
+    let(:discussions) { subject.discussions }
 
     it 'includes discussions for diff notes, commit diff notes, commit notes, and regular notes' do
-      expect(subject).to eq([
-        DiffDiscussion.new([active_diff_note1, active_diff_note2], merge_request),
-        DiffDiscussion.new([active_diff_note3], merge_request),
-        DiffDiscussion.new([outdated_diff_note1, outdated_diff_note2], merge_request),
-        SimpleDiscussion.new([discussion_note1, discussion_note2], merge_request),
-        DiffDiscussion.new([commit_diff_note1, commit_diff_note2], merge_request),
-        OutOfContextDiscussion.new([commit_note1, commit_note2], merge_request),
-        SimpleDiscussion.new([commit_discussion_note1, commit_discussion_note2], merge_request),
-        SimpleDiscussion.new([commit_discussion_note3], merge_request),
-        IndividualNoteDiscussion.new([note1], merge_request),
-        IndividualNoteDiscussion.new([note2], merge_request)
+      expect(discussions).to eq([
+        DiffDiscussion.new([active_diff_note1, active_diff_note2], subject),
+        DiffDiscussion.new([active_diff_note3], subject),
+        DiffDiscussion.new([outdated_diff_note1, outdated_diff_note2], subject),
+        Discussion.new([discussion_note1, discussion_note2], subject),
+        DiffDiscussion.new([commit_diff_note1, commit_diff_note2], subject),
+        OutOfContextDiscussion.new([commit_note1, commit_note2], subject),
+        Discussion.new([commit_discussion_note1, commit_discussion_note2], subject),
+        Discussion.new([commit_discussion_note3], subject),
+        IndividualNoteDiscussion.new([note1], subject),
+        IndividualNoteDiscussion.new([note2], subject)
       ])
     end
   end
 
   describe '#grouped_diff_discussions' do
-    subject { merge_request.grouped_diff_discussions }
+    let(:grouped_diff_discussions) { subject.grouped_diff_discussions }
 
     it "includes active discussions" do
-      discussions = subject.values.flatten
+      discussions = grouped_diff_discussions.values.flatten
 
       expect(discussions.count).to eq(2)
       expect(discussions.map(&:id)).to eq([active_diff_note1.discussion_id, active_diff_note3.discussion_id])
@@ -74,12 +74,188 @@ describe MergeRequest, Noteable, model: true do
     end
 
     it "doesn't include outdated discussions" do
-      expect(subject.values.flatten.map(&:id)).not_to include(outdated_diff_note1.discussion_id)
+      expect(grouped_diff_discussions.values.flatten.map(&:id)).not_to include(outdated_diff_note1.discussion_id)
     end
 
     it "groups the discussions by line code" do
-      expect(subject[active_diff_note1.line_code].first.id).to eq(active_diff_note1.discussion_id)
-      expect(subject[active_diff_note3.line_code].first.id).to eq(active_diff_note3.discussion_id)
+      expect(grouped_diff_discussions[active_diff_note1.line_code].first.id).to eq(active_diff_note1.discussion_id)
+      expect(grouped_diff_discussions[active_diff_note3.line_code].first.id).to eq(active_diff_note3.discussion_id)
+    end
+  end
+
+  context "discussion status" do
+    let(:first_discussion) { build_stubbed(:discussion_note_on_merge_request, noteable: subject, project: project).to_discussion }
+    let(:second_discussion) { build_stubbed(:discussion_note_on_merge_request, noteable: subject, project: project).to_discussion }
+    let(:third_discussion) { build_stubbed(:discussion_note_on_merge_request, noteable: subject, project: project).to_discussion }
+
+    before do
+      allow(subject).to receive(:resolvable_discussions).and_return([first_discussion, second_discussion, third_discussion])
+    end
+
+    describe "#discussions_resolvable?" do
+      context "when all discussions are unresolvable" do
+        before do
+          allow(first_discussion).to receive(:resolvable?).and_return(false)
+          allow(second_discussion).to receive(:resolvable?).and_return(false)
+          allow(third_discussion).to receive(:resolvable?).and_return(false)
+        end
+
+        it "returns false" do
+          expect(subject.discussions_resolvable?).to be false
+        end
+      end
+
+      context "when some discussions are unresolvable and some discussions are resolvable" do
+        before do
+          allow(first_discussion).to receive(:resolvable?).and_return(true)
+          allow(second_discussion).to receive(:resolvable?).and_return(false)
+          allow(third_discussion).to receive(:resolvable?).and_return(true)
+        end
+
+        it "returns true" do
+          expect(subject.discussions_resolvable?).to be true
+        end
+      end
+
+      context "when all discussions are resolvable" do
+        before do
+          allow(first_discussion).to receive(:resolvable?).and_return(true)
+          allow(second_discussion).to receive(:resolvable?).and_return(true)
+          allow(third_discussion).to receive(:resolvable?).and_return(true)
+        end
+
+        it "returns true" do
+          expect(subject.discussions_resolvable?).to be true
+        end
+      end
+    end
+
+    describe "#discussions_resolved?" do
+      context "when discussions are not resolvable" do
+        before do
+          allow(subject).to receive(:discussions_resolvable?).and_return(false)
+        end
+
+        it "returns false" do
+          expect(subject.discussions_resolved?).to be false
+        end
+      end
+
+      context "when discussions are resolvable" do
+        before do
+          allow(subject).to receive(:discussions_resolvable?).and_return(true)
+
+          allow(first_discussion).to receive(:resolvable?).and_return(true)
+          allow(second_discussion).to receive(:resolvable?).and_return(false)
+          allow(third_discussion).to receive(:resolvable?).and_return(true)
+        end
+
+        context "when all resolvable discussions are resolved" do
+          before do
+            allow(first_discussion).to receive(:resolved?).and_return(true)
+            allow(third_discussion).to receive(:resolved?).and_return(true)
+          end
+
+          it "returns true" do
+            expect(subject.discussions_resolved?).to be true
+          end
+        end
+
+        context "when some resolvable discussions are not resolved" do
+          before do
+            allow(first_discussion).to receive(:resolved?).and_return(true)
+            allow(third_discussion).to receive(:resolved?).and_return(false)
+          end
+
+          it "returns false" do
+            expect(subject.discussions_resolved?).to be false
+          end
+        end
+      end
+    end
+
+    describe "#discussions_to_be_resolved?" do
+      context "when discussions are not resolvable" do
+        before do
+          allow(subject).to receive(:discussions_resolvable?).and_return(false)
+        end
+
+        it "returns false" do
+          expect(subject.discussions_to_be_resolved?).to be false
+        end
+      end
+
+      context "when discussions are resolvable" do
+        before do
+          allow(subject).to receive(:discussions_resolvable?).and_return(true)
+
+          allow(first_discussion).to receive(:resolvable?).and_return(true)
+          allow(second_discussion).to receive(:resolvable?).and_return(false)
+          allow(third_discussion).to receive(:resolvable?).and_return(true)
+        end
+
+        context "when all resolvable discussions are resolved" do
+          before do
+            allow(first_discussion).to receive(:resolved?).and_return(true)
+            allow(third_discussion).to receive(:resolved?).and_return(true)
+          end
+
+          it "returns false" do
+            expect(subject.discussions_to_be_resolved?).to be false
+          end
+        end
+
+        context "when some resolvable discussions are not resolved" do
+          before do
+            allow(first_discussion).to receive(:resolved?).and_return(true)
+            allow(third_discussion).to receive(:resolved?).and_return(false)
+          end
+
+          it "returns true" do
+            expect(subject.discussions_to_be_resolved?).to be true
+          end
+        end
+      end
+    end
+
+    describe "#discussions_to_be_resolved" do
+      before do
+        allow(first_discussion).to receive(:to_be_resolved?).and_return(true)
+        allow(second_discussion).to receive(:to_be_resolved?).and_return(false)
+        allow(third_discussion).to receive(:to_be_resolved?).and_return(false)
+      end
+
+      it 'includes only discussions that need to be resolved' do
+        expect(subject.discussions_to_be_resolved).to eq([first_discussion])
+      end
+    end
+
+    describe '#discussions_can_be_resolved_by?' do
+      let(:user) { build(:user) }
+
+      context 'all discussions can be resolved by the user' do
+        before do
+          allow(first_discussion).to receive(:can_resolve?).with(user).and_return(true)
+          allow(second_discussion).to receive(:can_resolve?).with(user).and_return(true)
+          allow(third_discussion).to receive(:can_resolve?).with(user).and_return(true)
+        end
+
+        it 'allows a user to resolve the discussions' do
+          expect(subject.discussions_can_be_resolved_by?(user)).to be(true)
+        end
+      end
+
+      context 'one discussion cannot be resolved by the user' do
+        before do
+          allow(first_discussion).to receive(:can_resolve?).with(user).and_return(true)
+          allow(second_discussion).to receive(:can_resolve?).with(user).and_return(true)
+          allow(third_discussion).to receive(:can_resolve?).with(user).and_return(false)
+        end
+
+        it 'allows a user to resolve the discussions' do
+          expect(subject.discussions_can_be_resolved_by?(user)).to be(false)
+        end
+      end
     end
   end
 end
diff --git a/spec/models/concerns/resolvable_discussion_spec.rb b/spec/models/concerns/resolvable_discussion_spec.rb
index 2d2182fbae9..18327fe262d 100644
--- a/spec/models/concerns/resolvable_discussion_spec.rb
+++ b/spec/models/concerns/resolvable_discussion_spec.rb
@@ -5,8 +5,9 @@ describe Discussion, ResolvableDiscussion, models: true do
 
   let(:first_note) { create(:discussion_note_on_merge_request) }
   let(:merge_request) { first_note.noteable }
-  let(:second_note) { create(:discussion_note_on_merge_request, in_reply_to: first_note) }
-  let(:third_note) { create(:discussion_note_on_merge_request) }
+  let(:project) { first_note.project }
+  let(:second_note) { create(:discussion_note_on_merge_request, noteable: merge_request, project: project, in_reply_to: first_note) }
+  let(:third_note) { create(:discussion_note_on_merge_request, noteable: merge_request, project: project) }
 
   describe "#resolvable?" do
     context "when potentially resolvable" do
diff --git a/spec/models/concerns/resolvable_note_spec.rb b/spec/models/concerns/resolvable_note_spec.rb
index a5a26958410..1503ccdff11 100644
--- a/spec/models/concerns/resolvable_note_spec.rb
+++ b/spec/models/concerns/resolvable_note_spec.rb
@@ -1,15 +1,17 @@
 require 'spec_helper'
 
 describe Note, ResolvableNote, models: true do
-  subject { create(:discussion_note_on_merge_request) }
+  let(:project) { create(:project) }
+  let(:merge_request) { create(:merge_request, source_project: project) }
+  subject { create(:discussion_note_on_merge_request, noteable: merge_request, project: project) }
 
   context 'resolvability scopes' do
-    let!(:note1) { create(:note) }
-    let!(:note2) { create(:diff_note_on_commit) }
-    let!(:note3) { create(:diff_note_on_merge_request, :resolved) }
-    let!(:note4) { create(:discussion_note_on_merge_request) }
-    let!(:note5) { create(:discussion_note_on_issue) }
-    let!(:note6) { create(:discussion_note_on_merge_request, :system) }
+    let!(:note1) { create(:note, project: project) }
+    let!(:note2) { create(:diff_note_on_commit, project: project) }
+    let!(:note3) { create(:diff_note_on_merge_request, :resolved, noteable: merge_request, project: project) }
+    let!(:note4) { create(:discussion_note_on_merge_request, noteable: merge_request, project: project) }
+    let!(:note5) { create(:discussion_note_on_issue, project: project) }
+    let!(:note6) { create(:discussion_note_on_merge_request, :system, noteable: merge_request, project: project) }
 
     describe '.potentially_resolvable' do
       it 'includes diff and discussion notes on merge requests' do
@@ -38,9 +40,9 @@ describe Note, ResolvableNote, models: true do
 
   describe ".resolve!" do
     let(:current_user) { create(:user) }
-    let!(:commit_note) { create(:diff_note_on_commit) }
-    let!(:resolved_note) { create(:discussion_note_on_merge_request, :resolved) }
-    let!(:unresolved_note) { create(:discussion_note_on_merge_request) }
+    let!(:commit_note) { create(:diff_note_on_commit, project: project) }
+    let!(:resolved_note) { create(:discussion_note_on_merge_request, :resolved, noteable: merge_request, project: project) }
+    let!(:unresolved_note) { create(:discussion_note_on_merge_request, noteable: merge_request, project: project) }
 
     before do
       described_class.resolve!(current_user)
@@ -59,7 +61,7 @@ describe Note, ResolvableNote, models: true do
   end
 
   describe ".unresolve!" do
-    let!(:resolved_note) { create(:discussion_note_on_merge_request, :resolved) }
+    let!(:resolved_note) { create(:discussion_note_on_merge_request, :resolved, noteable: merge_request, project: project) }
 
     before do
       described_class.unresolve!