File upload UI obeys LFS filters

Uses Lfs::FileModificationHandler to coordinate LFS detection, creation of LfsObject, etc

Caveats:
 1. This isn't used by the multi-file editor / Web IDE
 2. This isn't used on rename. We'd need to be able to download LFS files
    and add them to the commit if they no longer match so not as simple.
 3. We only check the root .gitattributes file, so this should be improved
    to correctly check for nested .gitattributes files in subfolders.

1 files changed, 78 insertions, 0 deletions

diff --git a/spec/services/files/create_service_spec.rb b/spec/services/files/create_service_spec.rb
new file mode 100644
index 00000000000..030263b1502
--- /dev/null
+++ b/spec/services/files/create_service_spec.rb
@@ -0,0 +1,78 @@
+require "spec_helper"
+
+describe Files::CreateService do
+  let(:project) { create(:project, :repository) }
+  let(:repository) { project.repository }
+  let(:user) { create(:user) }
+  let(:file_content) { 'Test file content' }
+  let(:branch_name) { project.default_branch }
+  let(:start_branch) { branch_name }
+
+  let(:commit_params) do
+    {
+      file_path: file_path,
+      commit_message: "Update File",
+      file_content: file_content,
+      file_content_encoding: "text",
+      start_project: project,
+      start_branch: start_branch,
+      branch_name: branch_name
+    }
+  end
+
+  subject { described_class.new(project, user, commit_params) }
+
+  before do
+    project.add_master(user)
+  end
+
+  describe "#execute" do
+    context 'when file matches LFS filter' do
+      let(:file_path) { 'test_file.lfs' }
+      let(:branch_name) { 'lfs' }
+
+      context 'with LFS disabled' do
+        it 'skips gitattributes check' do
+          expect(repository).not_to receive(:attributes_at)
+
+          subject.execute
+        end
+
+        it "doesn't create LFS pointers" do
+          subject.execute
+
+          blob = repository.blob_at('lfs', file_path)
+
+          expect(blob.data).not_to start_with('version https://git-lfs.github.com/spec/v1')
+          expect(blob.data).to eq(file_content)
+        end
+      end
+
+      context 'with LFS enabled' do
+        before do
+          allow(project).to receive(:lfs_enabled?).and_return(true)
+        end
+
+        it 'creates an LFS pointer' do
+          subject.execute
+
+          blob = repository.blob_at('lfs', file_path)
+
+          expect(blob.data).to start_with('version https://git-lfs.github.com/spec/v1')
+        end
+
+        it "creates an LfsObject with the file's content" do
+          subject.execute
+
+          expect(LfsObject.last.file.read).to eq file_content
+        end
+
+        it 'links the LfsObject to the project' do
+          expect do
+            subject.execute
+          end.to change { project.lfs_objects.count }.by(1)
+        end
+      end
+    end
+  end
+end