Merge remote-tracking branch 'upstream/master' into fix-git-hooks-when-creating-file

* upstream/master: (116 commits)
  adds impersonator variable and makes sudo usage overall more clear
  Reenables /user API request to return private-token if user is admin and requested with sudo
  Fix Backup::Manager#remove_old
  Allow public access to some Tag API endpoints
  Update outdated visible content spec descriptions
  Grapify the issues API
  new DevOps report, 404s, typos
  Remove dashboard.scss
  Update custom_hooks.md for global custom hooks and chained hook info
  Move admin hooks spinach to rspec
  Move admin logs spinach test to rspec
  Fix 404 error when visit group label edit page
  A simpler implementation of finding a merge request
  Encourage bug reporters to mention if they use GitLab.com [ci skip]
  Bump gitlab-shell version to 4.0.3
  Remove confirmation.scss
  Explain "js: true" in "deleted_source_branch_spec.rb" [ci skip]
  Move award emojis to framwork
  Move image styles to framework
  Remove tags.scss
  ...

18 files changed, 316 insertions, 72 deletions

diff --git a/spec/models/ci/pipeline_spec.rb b/spec/models/ci/pipeline_spec.rb
index 0d2b4920835..3f93d9ddf19 100644
--- a/spec/models/ci/pipeline_spec.rb
+++ b/spec/models/ci/pipeline_spec.rb
@@ -404,6 +404,76 @@ describe Ci::Pipeline, models: true do
     end
   end
 
+  describe '#detailed_status' do
+    context 'when pipeline is created' do
+      let(:pipeline) { create(:ci_pipeline, status: :created) }
+
+      it 'returns detailed status for created pipeline' do
+        expect(pipeline.detailed_status.text).to eq 'created'
+      end
+    end
+
+    context 'when pipeline is pending' do
+      let(:pipeline) { create(:ci_pipeline, status: :pending) }
+
+      it 'returns detailed status for pending pipeline' do
+        expect(pipeline.detailed_status.text).to eq 'pending'
+      end
+    end
+
+    context 'when pipeline is running' do
+      let(:pipeline) { create(:ci_pipeline, status: :running) }
+
+      it 'returns detailed status for running pipeline' do
+        expect(pipeline.detailed_status.text).to eq 'running'
+      end
+    end
+
+    context 'when pipeline is successful' do
+      let(:pipeline) { create(:ci_pipeline, status: :success) }
+
+      it 'returns detailed status for successful pipeline' do
+        expect(pipeline.detailed_status.text).to eq 'passed'
+      end
+    end
+
+    context 'when pipeline is failed' do
+      let(:pipeline) { create(:ci_pipeline, status: :failed) }
+
+      it 'returns detailed status for failed pipeline' do
+        expect(pipeline.detailed_status.text).to eq 'failed'
+      end
+    end
+
+    context 'when pipeline is canceled' do
+      let(:pipeline) { create(:ci_pipeline, status: :canceled) }
+
+      it 'returns detailed status for canceled pipeline' do
+        expect(pipeline.detailed_status.text).to eq 'canceled'
+      end
+    end
+
+    context 'when pipeline is skipped' do
+      let(:pipeline) { create(:ci_pipeline, status: :skipped) }
+
+      it 'returns detailed status for skipped pipeline' do
+        expect(pipeline.detailed_status.text).to eq 'skipped'
+      end
+    end
+
+    context 'when pipeline is successful but with warnings' do
+      let(:pipeline) { create(:ci_pipeline, status: :success) }
+
+      before do
+        create(:ci_build, :allowed_to_fail, :failed, pipeline: pipeline)
+      end
+
+      it 'retruns detailed status for successful pipeline with warnings' do
+        expect(pipeline.detailed_status.label).to eq 'passed with warnings'
+      end
+    end
+  end
+
   describe '#cancelable?' do
     %i[created running pending].each do |status0|
       context "when there is a build #{status0}" do
diff --git a/spec/models/ci/variable_spec.rb b/spec/models/ci/variable_spec.rb
index 4e7833c3162..bee9f714849 100644
--- a/spec/models/ci/variable_spec.rb
+++ b/spec/models/ci/variable_spec.rb
@@ -5,6 +5,13 @@ describe Ci::Variable, models: true do
 
   let(:secret_value) { 'secret' }
 
+  it { is_expected.to validate_presence_of(:key) }
+  it { is_expected.to validate_uniqueness_of(:key).scoped_to(:gl_project_id) }
+  it { is_expected.to validate_length_of(:key).is_at_most(255) }
+  it { is_expected.to allow_value('foo').for(:key) }
+  it { is_expected.not_to allow_value('foo bar').for(:key) }
+  it { is_expected.not_to allow_value('foo/bar').for(:key) }
+
   before :each do
     subject.value = secret_value
   end
diff --git a/spec/models/commit_range_spec.rb b/spec/models/commit_range_spec.rb
index c41359b55a3..d89d4342dea 100644
--- a/spec/models/commit_range_spec.rb
+++ b/spec/models/commit_range_spec.rb
@@ -45,7 +45,7 @@ describe CommitRange, models: true do
   end
 
   describe '#to_reference' do
-    let(:cross) { create(:project) }
+    let(:cross) { create(:empty_project, namespace: project.namespace) }
 
     it 'returns a String reference to the object' do
       expect(range.to_reference).to eq "#{full_sha_from}...#{full_sha_to}"
@@ -56,12 +56,12 @@ describe CommitRange, models: true do
     end
 
     it 'supports a cross-project reference' do
-      expect(range.to_reference(cross)).to eq "#{project.to_reference}@#{full_sha_from}...#{full_sha_to}"
+      expect(range.to_reference(cross)).to eq "#{project.path}@#{full_sha_from}...#{full_sha_to}"
     end
   end
 
   describe '#reference_link_text' do
-    let(:cross) { create(:project) }
+    let(:cross) { create(:empty_project, namespace: project.namespace) }
 
     it 'returns a String reference to the object' do
       expect(range.reference_link_text).to eq "#{sha_from}...#{sha_to}"
@@ -72,7 +72,7 @@ describe CommitRange, models: true do
     end
 
     it 'supports a cross-project reference' do
-      expect(range.reference_link_text(cross)).to eq "#{project.to_reference}@#{sha_from}...#{sha_to}"
+      expect(range.reference_link_text(cross)).to eq "#{project.path}@#{sha_from}...#{sha_to}"
     end
   end
 
diff --git a/spec/models/commit_spec.rb b/spec/models/commit_spec.rb
index 7194c20d3bf..eb482c7f913 100644
--- a/spec/models/commit_spec.rb
+++ b/spec/models/commit_spec.rb
@@ -34,24 +34,30 @@ describe Commit, models: true do
   end
 
   describe '#to_reference' do
+    let(:project) { create(:project, path: 'sample-project') }
+    let(:commit)  { project.commit }
+
     it 'returns a String reference to the object' do
       expect(commit.to_reference).to eq commit.id
     end
 
     it 'supports a cross-project reference' do
-      cross = double('project')
-      expect(commit.to_reference(cross)).to eq "#{project.to_reference}@#{commit.id}"
+      another_project = build(:project, name: 'another-project', namespace: project.namespace)
+      expect(commit.to_reference(another_project)).to eq "sample-project@#{commit.id}"
     end
   end
 
   describe '#reference_link_text' do
+    let(:project) { create(:project, path: 'sample-project') }
+    let(:commit)  { project.commit }
+
     it 'returns a String reference to the object' do
       expect(commit.reference_link_text).to eq commit.short_id
     end
 
     it 'supports a cross-project reference' do
-      cross = double('project')
-      expect(commit.reference_link_text(cross)).to eq "#{project.to_reference}@#{commit.short_id}"
+      another_project = build(:project, name: 'another-project', namespace: project.namespace)
+      expect(commit.reference_link_text(another_project)).to eq "sample-project@#{commit.short_id}"
     end
   end
 
diff --git a/spec/models/concerns/issuable_spec.rb b/spec/models/concerns/issuable_spec.rb
index 6f84bffe046..4fa06a8c60a 100644
--- a/spec/models/concerns/issuable_spec.rb
+++ b/spec/models/concerns/issuable_spec.rb
@@ -35,7 +35,7 @@ describe Issue, "Issuable" do
     it { is_expected.to validate_presence_of(:iid) }
     it { is_expected.to validate_presence_of(:author) }
     it { is_expected.to validate_presence_of(:title) }
-    it { is_expected.to validate_length_of(:title).is_at_least(0).is_at_most(255) }
+    it { is_expected.to validate_length_of(:title).is_at_most(255) }
   end
 
   describe "Scope" do
diff --git a/spec/models/discussion_spec.rb b/spec/models/discussion_spec.rb
index 2a67c60b978..bc32fadd391 100644
--- a/spec/models/discussion_spec.rb
+++ b/spec/models/discussion_spec.rb
@@ -521,6 +521,15 @@ describe Discussion, model: true do
     end
   end
 
+  describe "#first_note_to_resolve" do
+    it "returns the first not that still needs to be resolved" do
+      allow(first_note).to receive(:to_be_resolved?).and_return(false)
+      allow(second_note).to receive(:to_be_resolved?).and_return(true)
+
+      expect(subject.first_note_to_resolve).to eq(second_note)
+    end
+  end
+
   describe "#collapsed?" do
     context "when a diff discussion" do
       before do
diff --git a/spec/models/environment_spec.rb b/spec/models/environment_spec.rb
index d06665197db..c8170164898 100644
--- a/spec/models/environment_spec.rb
+++ b/spec/models/environment_spec.rb
@@ -13,9 +13,9 @@ describe Environment, models: true do
 
   it { is_expected.to validate_presence_of(:name) }
   it { is_expected.to validate_uniqueness_of(:name).scoped_to(:project_id) }
-  it { is_expected.to validate_length_of(:name).is_within(0..255) }
+  it { is_expected.to validate_length_of(:name).is_at_most(255) }
 
-  it { is_expected.to validate_length_of(:external_url).is_within(0..255) }
+  it { is_expected.to validate_length_of(:external_url).is_at_most(255) }
 
   # To circumvent a not null violation of the name column:
   # https://github.com/thoughtbot/shoulda-matchers/issues/336
diff --git a/spec/models/group_label_spec.rb b/spec/models/group_label_spec.rb
index 2369658bf78..668aa6fb357 100644
--- a/spec/models/group_label_spec.rb
+++ b/spec/models/group_label_spec.rb
@@ -37,6 +37,16 @@ describe GroupLabel, models: true do
       end
     end
 
+    context 'cross-project' do
+      let(:namespace) { build_stubbed(:namespace) }
+      let(:source_project) { build_stubbed(:empty_project, name: 'project-1', namespace: namespace) }
+      let(:target_project) { build_stubbed(:empty_project, name: 'project-2', namespace: namespace) }
+
+      it 'returns a String reference to the object' do
+        expect(label.to_reference(source_project, target_project)).to eq %(project-1~#{label.id})
+      end
+    end
+
     context 'using invalid format' do
       it 'raises error' do
         expect { label.to_reference(format: :invalid) }
diff --git a/spec/models/issue_spec.rb b/spec/models/issue_spec.rb
index 89e93dce8c5..24e216329a9 100644
--- a/spec/models/issue_spec.rb
+++ b/spec/models/issue_spec.rb
@@ -43,14 +43,16 @@ describe Issue, models: true do
   end
 
   describe '#to_reference' do
+    let(:project) { build(:empty_project, name: 'sample-project') }
+    let(:issue) { build(:issue, iid: 1, project: project) }
+
     it 'returns a String reference to the object' do
-      expect(subject.to_reference).to eq "##{subject.iid}"
+      expect(issue.to_reference).to eq "#1"
     end
 
     it 'supports a cross-project reference' do
-      cross = double('project')
-      expect(subject.to_reference(cross)).
-        to eq "#{subject.project.to_reference}##{subject.iid}"
+      another_project = build(:project, name: 'another-project', namespace: project.namespace)
+      expect(issue.to_reference(another_project)).to eq "sample-project#1"
     end
   end
 
diff --git a/spec/models/key_spec.rb b/spec/models/key_spec.rb
index 90731f55470..2a33d819138 100644
--- a/spec/models/key_spec.rb
+++ b/spec/models/key_spec.rb
@@ -7,9 +7,13 @@ describe Key, models: true do
 
   describe "Validation" do
     it { is_expected.to validate_presence_of(:title) }
+    it { is_expected.to validate_length_of(:title).is_at_most(255) }
+
     it { is_expected.to validate_presence_of(:key) }
-    it { is_expected.to validate_length_of(:title).is_within(0..255) }
-    it { is_expected.to validate_length_of(:key).is_within(0..5000) }
+    it { is_expected.to validate_length_of(:key).is_at_most(5000) }
+    it { is_expected.to allow_value('ssh-foo').for(:key) }
+    it { is_expected.to allow_value('ecdsa-foo').for(:key) }
+    it { is_expected.not_to allow_value('foo-bar').for(:key) }
   end
 
   describe "Methods" do
diff --git a/spec/models/merge_request_spec.rb b/spec/models/merge_request_spec.rb
index ec22ef93465..8b730be91fd 100644
--- a/spec/models/merge_request_spec.rb
+++ b/spec/models/merge_request_spec.rb
@@ -31,7 +31,7 @@ describe MergeRequest, models: true do
     it { is_expected.to validate_presence_of(:target_branch) }
     it { is_expected.to validate_presence_of(:source_branch) }
 
-    context "Validation of merge user with Merge When Build succeeds" do
+    context "Validation of merge user with Merge When Pipeline Succeeds" do
       it "allows user to be nil when the feature is disabled" do
         expect(subject).to be_valid
       end
@@ -142,13 +142,16 @@ describe MergeRequest, models: true do
   end
 
   describe '#to_reference' do
+    let(:project) { build(:empty_project, name: 'sample-project') }
+    let(:merge_request) { build(:merge_request, target_project: project, iid: 1) }
+
     it 'returns a String reference to the object' do
-      expect(subject.to_reference).to eq "!#{subject.iid}"
+      expect(merge_request.to_reference).to eq "!1"
     end
 
     it 'supports a cross-project reference' do
-      cross = double('project')
-      expect(subject.to_reference(cross)).to eq "#{subject.source_project.to_reference}!#{subject.iid}"
+      another_project = build(:project, name: 'another-project', namespace: project.namespace)
+      expect(merge_request.to_reference(another_project)).to eq "sample-project!1"
     end
   end
 
@@ -1124,6 +1127,46 @@ describe MergeRequest, models: true do
       allow(subject).to receive(:diff_discussions).and_return([first_discussion, second_discussion, third_discussion])
     end
 
+    describe '#resolvable_discussions' 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.resolvable_discussions).to eq([first_discussion])
+      end
+    end
+
+    describe '#discussions_can_be_resolved_by? user' 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
+
     describe "#discussions_resolvable?" do
       context "when all discussions are unresolvable" do
         before do
diff --git a/spec/models/milestone_spec.rb b/spec/models/milestone_spec.rb
index a4bfe851dfb..0cc2efae5f9 100644
--- a/spec/models/milestone_spec.rb
+++ b/spec/models/milestone_spec.rb
@@ -246,4 +246,18 @@ describe Milestone, models: true do
       end
     end
   end
+
+  describe '#to_reference' do
+    let(:project) { build(:empty_project, name: 'sample-project') }
+    let(:milestone) { build(:milestone, iid: 1, project: project) }
+
+    it 'returns a String reference to the object' do
+      expect(milestone.to_reference).to eq "%1"
+    end
+
+    it 'supports a cross-project reference' do
+      another_project = build(:project, name: 'another-project', namespace: project.namespace)
+      expect(milestone.to_reference(another_project)).to eq "sample-project%1"
+    end
+  end
 end
diff --git a/spec/models/namespace_spec.rb b/spec/models/namespace_spec.rb
index 431b3e4435f..ba0ed4a3603 100644
--- a/spec/models/namespace_spec.rb
+++ b/spec/models/namespace_spec.rb
@@ -4,11 +4,18 @@ describe Namespace, models: true do
   let!(:namespace) { create(:namespace) }
 
   it { is_expected.to have_many :projects }
-  it { is_expected.to validate_presence_of :name }
+
+  it { is_expected.to validate_presence_of(:name) }
   it { is_expected.to validate_uniqueness_of(:name) }
-  it { is_expected.to validate_presence_of :path }
+  it { is_expected.to validate_length_of(:name).is_at_most(255) }
+
+  it { is_expected.to validate_length_of(:description).is_at_most(255) }
+
+  it { is_expected.to validate_presence_of(:path) }
   it { is_expected.to validate_uniqueness_of(:path) }
-  it { is_expected.to validate_presence_of :owner }
+  it { is_expected.to validate_length_of(:path).is_at_most(255) }
+
+  it { is_expected.to validate_presence_of(:owner) }
 
   describe "Mass assignment" do
   end
diff --git a/spec/models/project_label_spec.rb b/spec/models/project_label_spec.rb
index 18c9d449ee5..4d538cac007 100644
--- a/spec/models/project_label_spec.rb
+++ b/spec/models/project_label_spec.rb
@@ -105,14 +105,14 @@ describe ProjectLabel, models: true do
       context 'using name' do
         it 'returns cross reference with label name' do
           expect(label.to_reference(project, format: :name))
-            .to eq %Q(#{label.project.to_reference}~"#{label.name}")
+            .to eq %Q(#{label.project.path_with_namespace}~"#{label.name}")
         end
       end
 
       context 'using id' do
         it 'returns cross reference with label id' do
           expect(label.to_reference(project, format: :id))
-            .to eq %Q(#{label.project.to_reference}~#{label.id})
+            .to eq %Q(#{label.project.path_with_namespace}~#{label.id})
         end
       end
     end
diff --git a/spec/models/project_spec.rb b/spec/models/project_spec.rb
index 8abcce42ce0..4d57330ed1c 100644
--- a/spec/models/project_spec.rb
+++ b/spec/models/project_spec.rb
@@ -131,14 +131,18 @@ describe Project, models: true do
 
     it { is_expected.to validate_presence_of(:name) }
     it { is_expected.to validate_uniqueness_of(:name).scoped_to(:namespace_id) }
-    it { is_expected.to validate_length_of(:name).is_within(0..255) }
+    it { is_expected.to validate_length_of(:name).is_at_most(255) }
 
     it { is_expected.to validate_presence_of(:path) }
     it { is_expected.to validate_uniqueness_of(:path).scoped_to(:namespace_id) }
-    it { is_expected.to validate_length_of(:path).is_within(0..255) }
-    it { is_expected.to validate_length_of(:description).is_within(0..2000) }
+    it { is_expected.to validate_length_of(:path).is_at_most(255) }
+
+    it { is_expected.to validate_length_of(:description).is_at_most(2000) }
+
     it { is_expected.to validate_presence_of(:creator) }
+
     it { is_expected.to validate_presence_of(:namespace) }
+
     it { is_expected.to validate_presence_of(:repository_storage) }
 
     it 'does not allow new projects beyond user limits' do
@@ -258,10 +262,70 @@ describe Project, models: true do
   end
 
   describe '#to_reference' do
-    let(:project) { create(:empty_project) }
+    let(:owner) { create(:user, name: 'Gitlab') }
+    let(:namespace) { create(:namespace, path: 'sample-namespace', owner: owner) }
+    let(:project) { create(:empty_project, path: 'sample-project', namespace: namespace) }
 
-    it 'returns a String reference to the object' do
-      expect(project.to_reference).to eq project.path_with_namespace
+    context 'when nil argument' do
+      it 'returns nil' do
+        expect(project.to_reference).to be_nil
+      end
+    end
+
+    context 'when same project argument' do
+      it 'returns nil' do
+        expect(project.to_reference(project)).to be_nil
+      end
+    end
+
+    context 'when cross namespace project argument' do
+      let(:another_namespace_project) { create(:empty_project, name: 'another-project') }
+
+      it 'returns complete path to the project' do
+        expect(project.to_reference(another_namespace_project)).to eq 'sample-namespace/sample-project'
+      end
+    end
+
+    context 'when same namespace / cross-project argument' do
+      let(:another_project) { create(:empty_project, namespace: namespace) }
+
+      it 'returns complete path to the project' do
+        expect(project.to_reference(another_project)).to eq 'sample-project'
+      end
+    end
+  end
+
+  describe '#to_human_reference' do
+    let(:owner) { create(:user, name: 'Gitlab') }
+    let(:namespace) { create(:namespace, name: 'Sample namespace', owner: owner) }
+    let(:project) { create(:empty_project, name: 'Sample project', namespace: namespace) }
+
+    context 'when nil argument' do
+      it 'returns nil' do
+        expect(project.to_human_reference).to be_nil
+      end
+    end
+
+    context 'when same project argument' do
+      it 'returns nil' do
+        expect(project.to_human_reference(project)).to be_nil
+      end
+    end
+
+    context 'when cross namespace project argument' do
+      let(:another_namespace_project) { create(:empty_project, name: 'another-project') }
+
+      it 'returns complete name with namespace of the project' do
+        expect(project.to_human_reference(another_namespace_project)).to eq 'Gitlab / Sample project'
+      end
+    end
+
+    context 'when same namespace / cross-project argument' do
+      let(:another_project) { create(:empty_project, namespace: namespace) }
+
+      it 'returns name of the project' do
+        expect(project.to_human_reference(another_project)).to eq 'Sample project'
+      end
     end
   end
 
diff --git a/spec/models/repository_spec.rb b/spec/models/repository_spec.rb
index 78596346b91..9cc13a9a25b 100644
--- a/spec/models/repository_spec.rb
+++ b/spec/models/repository_spec.rb
@@ -819,7 +819,6 @@ describe Repository, models: true do
         expect(repository).not_to receive(:expire_root_ref_cache)
         expect(repository).not_to receive(:expire_emptiness_caches)
         expect(repository).to     receive(:expire_branches_cache)
-        expect(repository).to     receive(:expire_has_visible_content_cache)
 
         GitOperationService.new(user, repository).
           with_branch('new-feature') do
@@ -840,7 +839,6 @@ describe Repository, models: true do
         expect(empty_repository).to receive(:expire_root_ref_cache)
         expect(empty_repository).to receive(:expire_emptiness_caches)
         expect(empty_repository).to receive(:expire_branches_cache)
-        expect(empty_repository).to receive(:expire_has_visible_content_cache)
 
         empty_repository.commit_file(user, 'CHANGELOG', 'Changelog!',
                                      message: 'Updates file content',
@@ -885,15 +883,6 @@ describe Repository, models: true do
 
         expect(subject).to eq(true)
       end
-
-      it 'caches the output' do
-        expect(repository).to receive(:branch_count).
-          once.
-          and_return(3)
-
-        repository.has_visible_content?
-        repository.has_visible_content?
-      end
     end
   end
 
@@ -974,20 +963,6 @@ describe Repository, models: true do
     end
   end
 
-  describe '#expire_has_visible_content_cache' do
-    it 'expires the visible content cache' do
-      repository.has_visible_content?
-
-      expect(repository).to receive(:branch_count).
-        once.
-        and_return(0)
-
-      repository.expire_has_visible_content_cache
-
-      expect(repository.has_visible_content?).to eq(false)
-    end
-  end
-
   describe '#expire_branch_cache' do
     # This method is private but we need it for testing purposes. Sadly there's
     # no other proper way of testing caching operations.
@@ -1023,7 +998,6 @@ describe Repository, models: true do
       allow(repository).to receive(:empty?).and_return(true)
 
       expect(cache).to receive(:expire).with(:empty?)
-      expect(repository).to receive(:expire_has_visible_content_cache)
 
       repository.expire_emptiness_caches
     end
@@ -1032,7 +1006,6 @@ describe Repository, models: true do
       allow(repository).to receive(:empty?).and_return(false)
 
       expect(cache).not_to receive(:expire).with(:empty?)
-      expect(repository).not_to receive(:expire_has_visible_content_cache)
 
       repository.expire_emptiness_caches
     end
@@ -1259,16 +1232,16 @@ describe Repository, models: true do
   end
 
   describe '#after_create_branch' do
-    it 'flushes the visible content cache' do
-      expect(repository).to receive(:expire_has_visible_content_cache)
+    it 'expires the branch caches' do
+      expect(repository).to receive(:expire_branches_cache)
 
       repository.after_create_branch
     end
   end
 
   describe '#after_remove_branch' do
-    it 'flushes the visible content cache' do
-      expect(repository).to receive(:expire_has_visible_content_cache)
+    it 'expires the branch caches' do
+      expect(repository).to receive(:expire_branches_cache)
 
       repository.after_remove_branch
     end
diff --git a/spec/models/snippet_spec.rb b/spec/models/snippet_spec.rb
index f62f6bacbaa..7425a897769 100644
--- a/spec/models/snippet_spec.rb
+++ b/spec/models/snippet_spec.rb
@@ -23,9 +23,9 @@ describe Snippet, models: true do
     it { is_expected.to validate_presence_of(:author) }
 
     it { is_expected.to validate_presence_of(:title) }
-    it { is_expected.to validate_length_of(:title).is_within(0..255) }
+    it { is_expected.to validate_length_of(:title).is_at_most(255) }
 
-    it { is_expected.to validate_length_of(:file_name).is_within(0..255) }
+    it { is_expected.to validate_length_of(:file_name).is_at_most(255) }
 
     it { is_expected.to validate_presence_of(:content) }
 
@@ -33,16 +33,51 @@ describe Snippet, models: true do
   end
 
   describe '#to_reference' do
+    context 'when snippet belongs to a project' do
+      let(:project) { build(:empty_project, name: 'sample-project') }
+      let(:snippet) { build(:snippet, id: 1, project: project) }
+
+      it 'returns a String reference to the object' do
+        expect(snippet.to_reference).to eq "$1"
+      end
+
+      it 'supports a cross-project reference' do
+        another_project = build(:project, name: 'another-project', namespace: project.namespace)
+        expect(snippet.to_reference(another_project)).to eq "sample-project$1"
+      end
+    end
+
+    context 'when snippet does not belong to a project' do
+      let(:snippet) { build(:snippet, id: 1, project: nil) }
+
+      it 'returns a String reference to the object' do
+        expect(snippet.to_reference).to eq "$1"
+      end
+
+      it 'still returns shortest reference when project arg present' do
+        another_project = build(:project, name: 'another-project')
+        expect(snippet.to_reference(another_project)).to eq "$1"
+      end
+    end
+  end
+
+  describe '#file_name' do
     let(:project) { create(:empty_project) }
-    let(:snippet) { create(:snippet, project: project) }
 
-    it 'returns a String reference to the object' do
-      expect(snippet.to_reference).to eq "$#{snippet.id}"
+    context 'file_name is nil' do
+      let(:snippet) { create(:snippet, project: project, file_name: nil) }
+
+      it 'returns an empty string' do
+        expect(snippet.file_name).to eq ''
+      end
     end
 
-    it 'supports a cross-project reference' do
-      cross = double('project')
-      expect(snippet.to_reference(cross)).to eq "#{project.to_reference}$#{snippet.id}"
+    context 'file_name is not nil' do
+      let(:snippet) { create(:snippet, project: project, file_name: 'foo.txt') }
+
+      it 'returns the file_name' do
+        expect(snippet.file_name).to eq 'foo.txt'
+      end
     end
   end
 
diff --git a/spec/models/user_spec.rb b/spec/models/user_spec.rb
index 2244803f90c..bad6ed9e146 100644
--- a/spec/models/user_spec.rb
+++ b/spec/models/user_spec.rb
@@ -79,7 +79,7 @@ describe User, models: true do
     it { is_expected.to allow_value(0).for(:projects_limit) }
     it { is_expected.not_to allow_value(-1).for(:projects_limit) }
 
-    it { is_expected.to validate_length_of(:bio).is_within(0..255) }
+    it { is_expected.to validate_length_of(:bio).is_at_most(255) }
 
     it_behaves_like 'an object with email-formated attributes', :email do
       subject { build(:user) }