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Diffstat (limited to 'spec/models/diff_viewer/base_spec.rb')
-rw-r--r-- | spec/models/diff_viewer/base_spec.rb | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/spec/models/diff_viewer/base_spec.rb b/spec/models/diff_viewer/base_spec.rb new file mode 100644 index 00000000000..b26de3f3b97 --- /dev/null +++ b/spec/models/diff_viewer/base_spec.rb @@ -0,0 +1,150 @@ +require 'spec_helper' + +describe DiffViewer::Base do + include FakeBlobHelpers + + let(:project) { create(:project, :repository) } + let(:commit) { project.commit('570e7b2abdd848b95f2f578043fc23bd6f6fd24d') } + let(:diff_file) { commit.diffs.diff_file_with_new_path('files/ruby/popen.rb') } + + let(:viewer_class) do + Class.new(described_class) do + include DiffViewer::ServerSide + + self.extensions = %w(jpg) + self.binary = true + self.collapse_limit = 1.megabyte + self.size_limit = 5.megabytes + end + end + + let(:viewer) { viewer_class.new(diff_file) } + + describe '.can_render?' do + context 'when the extension is supported' do + let(:commit) { project.commit('2f63565e7aac07bcdadb654e253078b727143ec4') } + let(:diff_file) { commit.diffs.diff_file_with_new_path('files/images/6049019_460s.jpg') } + + context 'when the binaryness matches' do + it 'returns true' do + expect(viewer_class.can_render?(diff_file)).to be_truthy + end + end + + context 'when the binaryness does not match' do + before do + allow(diff_file.old_blob).to receive(:binary?).and_return(false) + allow(diff_file.new_blob).to receive(:binary?).and_return(false) + end + + it 'returns false' do + expect(viewer_class.can_render?(diff_file)).to be_falsey + end + end + end + + context 'when the file type is supported' do + let(:commit) { project.commit('1a0b36b3cdad1d2ee32457c102a8c0b7056fa863') } + let(:diff_file) { commit.diffs.diff_file_with_new_path('LICENSE') } + + before do + viewer_class.file_types = %i(license) + viewer_class.binary = false + end + + context 'when the binaryness matches' do + it 'returns true' do + expect(viewer_class.can_render?(diff_file)).to be_truthy + end + end + + context 'when the binaryness does not match' do + before do + allow(diff_file.old_blob).to receive(:binary?).and_return(true) + allow(diff_file.new_blob).to receive(:binary?).and_return(true) + end + + it 'returns false' do + expect(viewer_class.can_render?(diff_file)).to be_falsey + end + end + end + + context 'when the extension and file type are not supported' do + it 'returns false' do + expect(viewer_class.can_render?(diff_file)).to be_falsey + end + end + + context 'when the file was renamed and only the old blob is supported' do + let(:commit) { project.commit('2f63565e7aac07bcdadb654e253078b727143ec4') } + let(:diff_file) { commit.diffs.diff_file_with_new_path('files/images/6049019_460s.jpg') } + + before do + allow(diff_file).to receive(:renamed_file?).and_return(true) + allow(diff_file.new_blob).to receive(:extension).and_return('jpeg') + end + + it 'returns false' do + expect(viewer_class.can_render?(diff_file)).to be_falsey + end + end + end + + describe '#collapsed?' do + context 'when the combined blob size is larger than the collapse limit' do + before do + allow(diff_file.old_blob).to receive(:raw_size).and_return(512.kilobytes) + allow(diff_file.new_blob).to receive(:raw_size).and_return(513.kilobytes) + end + + it 'returns true' do + expect(viewer.collapsed?).to be_truthy + end + end + + context 'when the combined blob size is smaller than the collapse limit' do + it 'returns false' do + expect(viewer.collapsed?).to be_falsey + end + end + end + + describe '#too_large?' do + context 'when the combined blob size is larger than the size limit' do + before do + allow(diff_file.old_blob).to receive(:raw_size).and_return(2.megabytes) + allow(diff_file.new_blob).to receive(:raw_size).and_return(4.megabytes) + end + + it 'returns true' do + expect(viewer.too_large?).to be_truthy + end + end + + context 'when the blob size is smaller than the size limit' do + it 'returns false' do + expect(viewer.too_large?).to be_falsey + end + end + end + + describe '#render_error' do + context 'when the combined blob size is larger than the size limit' do + before do + allow(diff_file.old_blob).to receive(:raw_size).and_return(2.megabytes) + allow(diff_file.new_blob).to receive(:raw_size).and_return(4.megabytes) + end + + it 'returns :too_large' do + expect(viewer.render_error).to eq(:too_large) + end + end + + context 'when the combined blob size is smaller than the size limit' do + it 'returns nil' do + expect(viewer.render_error).to be_nil + end + end + end +end |