1 files changed, 125 insertions, 0 deletions
diff --git a/spec/lib/gitlab/blob_helper_spec.rb b/spec/lib/gitlab/blob_helper_spec.rb
new file mode 100644
index 00000000000..0b56f8687c3
--- /dev/null
+++ b/spec/lib/gitlab/blob_helper_spec.rb
@@ -0,0 +1,125 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe Gitlab::BlobHelper do
+  include FakeBlobHelpers
+
+  let(:project) { create(:project) }
+  let(:blob) { fake_blob(path: 'file.txt') }
+  let(:large_blob) { fake_blob(path: 'test.pdf', size: 2.megabytes, binary: true) }
+
+  describe '#extname' do
+    it 'returns the extension' do
+      expect(blob.extname).to eq('.txt')
+    end
+  end
+
+  describe '#known_extension?' do
+    it 'returns true' do
+      expect(blob.known_extension?).to be_truthy
+    end
+  end
+
+  describe '#viewable' do
+    it 'returns true' do
+      expect(blob.viewable?).to be_truthy
+    end
+
+    it 'returns false' do
+      expect(large_blob.viewable?).to be_falsey
+    end
+  end
+
+  describe '#large?' do
+    it 'returns false' do
+      expect(blob.large?).to be_falsey
+    end
+
+    it 'returns true' do
+      expect(large_blob.large?).to be_truthy
+    end
+  end
+
+  describe '#binary?' do
+    it 'returns true' do
+      expect(large_blob.binary?).to be_truthy
+    end
+
+    it 'returns false' do
+      expect(blob.binary?).to be_falsey
+    end
+  end
+
+  describe '#text?' do
+    it 'returns true' do
+      expect(blob.text?).to be_truthy
+    end
+
+    it 'returns false' do
+      expect(large_blob.text?).to be_falsey
+    end
+  end
+
+  describe '#image?' do
+    it 'returns false' do
+      expect(blob.image?).to be_falsey
+    end
+  end
+
+  describe '#mime_type' do
+    it 'returns text/plain' do
+      expect(blob.mime_type).to eq('text/plain')
+    end
+
+    it 'returns application/pdf' do
+      expect(large_blob.mime_type).to eq('application/pdf')
+    end
+  end
+
+  describe '#binary_mime_type?' do
+    it 'returns false' do
+      expect(blob.binary_mime_type?).to be_falsey
+    end
+  end
+
+  describe '#lines' do
+    it 'returns the payload in an Array' do
+      expect(blob.lines).to eq(['foo'])
+    end
+  end
+
+  describe '#content_type' do
+    it 'returns text/plain' do
+      expect(blob.content_type).to eq('text/plain; charset=utf-8')
+    end
+
+    it 'returns text/plain' do
+      expect(large_blob.content_type).to eq('application/pdf')
+    end
+  end
+
+  describe '#encoded_newlines_re' do
+    it 'returns a regular expression' do
+      expect(blob.encoded_newlines_re).to eq(/\r\n|\r|\n/)
+    end
+  end
+
+  describe '#ruby_encoding' do
+    it 'returns UTF-8' do
+      expect(blob.ruby_encoding).to eq('UTF-8')
+    end
+  end
+
+  describe '#encoding' do
+    it 'returns UTF-8' do
+      expect(blob.ruby_encoding).to eq('UTF-8')
+    end
+  end
+
+  describe '#empty?' do
+    it 'returns false' do
+      expect(blob.empty?).to be_falsey
+    end
+  end
+end