Add more tests to merge_request_diff and improve initialize

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

1 files changed, 17 insertions, 0 deletions

diff --git a/spec/models/merge_request_diff_spec.rb b/spec/models/merge_request_diff_spec.rb
index 9a637c94fbe..16bba82181b 100644
--- a/spec/models/merge_request_diff_spec.rb
+++ b/spec/models/merge_request_diff_spec.rb
@@ -1,6 +1,23 @@
 require 'spec_helper'
 
 describe MergeRequestDiff, models: true do
+  describe 'initialize new object' do
+    subject { build(:merge_request).merge_request_diffs.build }
+
+    it { expect(subject).to be_valid }
+    it { expect(subject.head_commit_sha).to eq('5937ac0a7beb003549fc5fd26fc247adbce4a52e') }
+    it { expect(subject.base_commit_sha).to eq('ae73cb07c9eeaf35924a10f713b364d32b2dd34f') }
+    it { expect(subject.start_commit_sha).to eq('0b4bc9a49b562e85de7cc9e834518ea6828729b9') }
+  end
+
+  describe 'create new record' do
+    subject { create(:merge_request) }
+
+    it { expect(subject).to be_valid }
+    it { expect(subject.commits.count).to eq(5) }
+    it { expect(subject.diffs.count).to eq(8) }
+  end
+
   describe '#diffs' do
     let(:mr) { create(:merge_request, :with_diffs) }
     let(:mr_diff) { mr.merge_request_diff }