1 files changed, 54 insertions, 0 deletions
diff --git a/spec/support/shared_examples/controllers/issuable_notes_filter_shared_examples.rb b/spec/support/shared_examples/controllers/issuable_notes_filter_shared_examples.rb
new file mode 100644
index 00000000000..9c9d7ad781e
--- /dev/null
+++ b/spec/support/shared_examples/controllers/issuable_notes_filter_shared_examples.rb
@@ -0,0 +1,54 @@
+shared_examples 'issuable notes filter' do
+  it 'sets discussion filter' do
+    notes_filter = UserPreference::NOTES_FILTERS[:only_comments]
+
+    get :discussions, namespace_id: project.namespace, project_id: project, id: issuable.iid, notes_filter: notes_filter
+
+    expect(user.reload.notes_filter_for(issuable)).to eq(notes_filter)
+    expect(UserPreference.count).to eq(1)
+  end
+
+  it 'expires notes e-tag cache for issuable if filter changed' do
+    notes_filter = UserPreference::NOTES_FILTERS[:only_comments]
+
+    expect_any_instance_of(issuable.class).to receive(:expire_note_etag_cache)
+
+    get :discussions, namespace_id: project.namespace, project_id: project, id: issuable.iid, notes_filter: notes_filter
+  end
+
+  it 'does not expires notes e-tag cache for issuable if filter did not change' do
+    notes_filter = UserPreference::NOTES_FILTERS[:only_comments]
+    user.set_notes_filter(notes_filter, issuable)
+
+    expect_any_instance_of(issuable.class).not_to receive(:expire_note_etag_cache)
+
+    get :discussions, namespace_id: project.namespace, project_id: project, id: issuable.iid, notes_filter: notes_filter
+  end
+
+  it 'does not set notes filter when database is in read only mode' do
+    allow(Gitlab::Database).to receive(:read_only?).and_return(true)
+    notes_filter = UserPreference::NOTES_FILTERS[:only_comments]
+
+    get :discussions, namespace_id: project.namespace, project_id: project, id: issuable.iid, notes_filter: notes_filter
+
+    expect(user.reload.notes_filter_for(issuable)).to eq(0)
+  end
+
+  it 'returns no system note' do
+    user.set_notes_filter(UserPreference::NOTES_FILTERS[:only_comments], issuable)
+
+    get :discussions, namespace_id: project.namespace, project_id: project, id: issuable.iid
+
+    expect(JSON.parse(response.body).count).to eq(1)
+  end
+
+  context 'when filter is set to "only_comments"' do
+    it 'does not merge label event notes' do
+      user.set_notes_filter(UserPreference::NOTES_FILTERS[:only_comments], issuable)
+
+      expect(ResourceEvents::MergeIntoNotesService).not_to receive(:new)
+
+      get :discussions, namespace_id: project.namespace, project_id: project, id: issuable.iid
+    end
+  end
+end