Add latest changes from gitlab-org/gitlab@master

1 files changed, 77 insertions, 0 deletions

diff --git a/spec/lib/gitlab/diff/position_collection_spec.rb b/spec/lib/gitlab/diff/position_collection_spec.rb
new file mode 100644
index 00000000000..de0e631ab03
--- /dev/null
+++ b/spec/lib/gitlab/diff/position_collection_spec.rb
@@ -0,0 +1,77 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe Gitlab::Diff::PositionCollection do
+  let(:merge_request) { build(:merge_request) }
+
+  def build_text_position(attrs = {})
+    attributes = {
+      old_path: "files/ruby/popen.rb",
+      new_path: "files/ruby/popen.rb",
+      old_line: nil,
+      new_line: 14,
+      diff_refs: merge_request.diff_refs
+    }.merge(attrs)
+
+    Gitlab::Diff::Position.new(attributes)
+  end
+
+  def build_image_position(attrs = {})
+    attributes = {
+      old_path: "files/images/any_image.png",
+      new_path: "files/images/any_image.png",
+      width: 10,
+      height: 10,
+      x: 1,
+      y: 1,
+      diff_refs: merge_request.diff_refs,
+      position_type: "image"
+    }.merge(attrs)
+
+    Gitlab::Diff::Position.new(attributes)
+  end
+
+  let(:text_position) { build_text_position }
+  let(:folded_text_position) { build_text_position(old_line: 1, new_line: 1) }
+  let(:image_position) { build_image_position }
+  let(:head_sha) { merge_request.diff_head_sha }
+
+  let(:collection) do
+    described_class.new([text_position, folded_text_position, image_position], head_sha)
+  end
+
+  describe '#to_a' do
+    it 'returns all positions' do
+      expect(collection.to_a).to eq([text_position, folded_text_position, image_position])
+    end
+  end
+
+  describe '#unfoldable' do
+    it 'returns unfoldable diff positions' do
+      expect(collection.unfoldable).to eq([folded_text_position])
+    end
+
+    context 'when given head_sha does not match with positions head_sha' do
+      let(:head_sha) { 'unknown' }
+
+      it 'returns no position' do
+        expect(collection.unfoldable).to be_empty
+      end
+    end
+  end
+
+  describe '#concat' do
+    let(:new_text_position) { build_text_position(old_line: 1, new_line: 1) }
+
+    it 'returns a Gitlab::Diff::Position' do
+      expect(collection.concat([new_text_position])).to be_a(described_class)
+    end
+
+    it 'concatenates the new position to the collection' do
+      collection.concat([new_text_position])
+
+      expect(collection.to_a).to eq([text_position, folded_text_position, image_position, new_text_position])
+    end
+  end
+end