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require 'spec_helper'
describe Gitlab::Ci::Trace::HttpIO do
include HttpIOHelpers
let(:http_io) { described_class.new(url, size) }
let(:url) { remote_trace_url }
let(:size) { remote_trace_size }
describe '#close' do
subject { http_io.close }
it { is_expected.to be_nil }
end
describe '#binmode' do
subject { http_io.binmode }
it { is_expected.to be_nil }
end
describe '#binmode?' do
subject { http_io.binmode? }
it { is_expected.to be_truthy }
end
describe '#path' do
subject { http_io.path }
it { is_expected.to be_nil }
end
describe '#url' do
subject { http_io.url }
it { is_expected.to eq(url) }
end
describe '#seek' do
subject { http_io.seek(pos, where) }
context 'when moves pos to end of the file' do
let(:pos) { 0 }
let(:where) { IO::SEEK_END }
it { is_expected.to eq(size) }
end
context 'when moves pos to middle of the file' do
let(:pos) { size / 2 }
let(:where) { IO::SEEK_SET }
it { is_expected.to eq(size / 2) }
end
context 'when moves pos around' do
it 'matches the result' do
expect(http_io.seek(0)).to eq(0)
expect(http_io.seek(100, IO::SEEK_CUR)).to eq(100)
expect { http_io.seek(size + 1, IO::SEEK_CUR) }.to raise_error('new position is outside of file')
end
end
end
describe '#eof?' do
subject { http_io.eof? }
context 'when current pos is at end of the file' do
before do
http_io.seek(size, IO::SEEK_SET)
end
it { is_expected.to be_truthy }
end
context 'when current pos is not at end of the file' do
before do
http_io.seek(0, IO::SEEK_SET)
end
it { is_expected.to be_falsey }
end
end
describe '#each_line' do
subject { http_io.each_line }
let(:string_io) { StringIO.new(remote_trace_body) }
before do
stub_remote_trace_206
end
it 'yields lines' do
expect { |b| http_io.each_line(&b) }.to yield_successive_args(*string_io.each_line.to_a)
end
context 'when buckets on GCS' do
context 'when BUFFER_SIZE is larger than file size' do
before do
stub_remote_trace_200
set_larger_buffer_size_than(size)
end
it 'calls get_chunk only once' do
expect_any_instance_of(Net::HTTP).to receive(:request).once.and_call_original
http_io.each_line { |line| }
end
end
end
end
describe '#read' do
subject { http_io.read(length) }
context 'when there are no network issue' do
before do
stub_remote_trace_206
end
context 'when read whole size' do
let(:length) { nil }
context 'when BUFFER_SIZE is smaller than file size' do
before do
set_smaller_buffer_size_than(size)
end
it 'reads a trace' do
is_expected.to eq(remote_trace_body)
end
end
context 'when BUFFER_SIZE is larger than file size' do
before do
set_larger_buffer_size_than(size)
end
it 'reads a trace' do
is_expected.to eq(remote_trace_body)
end
end
end
context 'when read only first 100 bytes' do
let(:length) { 100 }
context 'when BUFFER_SIZE is smaller than file size' do
before do
set_smaller_buffer_size_than(size)
end
it 'reads a trace' do
is_expected.to eq(remote_trace_body[0, length])
end
end
context 'when BUFFER_SIZE is larger than file size' do
before do
set_larger_buffer_size_than(size)
end
it 'reads a trace' do
is_expected.to eq(remote_trace_body[0, length])
end
end
end
context 'when tries to read oversize' do
let(:length) { size + 1000 }
context 'when BUFFER_SIZE is smaller than file size' do
before do
set_smaller_buffer_size_than(size)
end
it 'reads a trace' do
is_expected.to eq(remote_trace_body)
end
end
context 'when BUFFER_SIZE is larger than file size' do
before do
set_larger_buffer_size_than(size)
end
it 'reads a trace' do
is_expected.to eq(remote_trace_body)
end
end
end
context 'when tries to read 0 bytes' do
let(:length) { 0 }
context 'when BUFFER_SIZE is smaller than file size' do
before do
set_smaller_buffer_size_than(size)
end
it 'reads a trace' do
is_expected.to be_empty
end
end
context 'when BUFFER_SIZE is larger than file size' do
before do
set_larger_buffer_size_than(size)
end
it 'reads a trace' do
is_expected.to be_empty
end
end
end
end
context 'when there is anetwork issue' do
let(:length) { nil }
before do
stub_remote_trace_500
end
it 'reads a trace' do
expect { subject }.to raise_error(Gitlab::Ci::Trace::HttpIO::FailedToGetChunkError)
end
end
end
describe '#readline' do
subject { http_io.readline }
let(:string_io) { StringIO.new(remote_trace_body) }
before do
stub_remote_trace_206
end
shared_examples 'all line matching' do
it 'reads a line' do
(0...remote_trace_body.lines.count).each do
expect(http_io.readline).to eq(string_io.readline)
end
end
end
context 'when there is anetwork issue' do
let(:length) { nil }
before do
stub_remote_trace_500
end
it 'reads a trace' do
expect { subject }.to raise_error(Gitlab::Ci::Trace::HttpIO::FailedToGetChunkError)
end
end
context 'when BUFFER_SIZE is smaller than file size' do
before do
set_smaller_buffer_size_than(size)
end
it_behaves_like 'all line matching'
end
context 'when BUFFER_SIZE is larger than file size' do
before do
set_larger_buffer_size_than(size)
end
it_behaves_like 'all line matching'
end
context 'when pos is at middle of the file' do
before do
set_smaller_buffer_size_than(size)
http_io.seek(size / 2)
string_io.seek(size / 2)
end
it 'reads from pos' do
expect(http_io.readline).to eq(string_io.readline)
end
end
end
describe '#write' do
subject { http_io.write(nil) }
it { expect { subject }.to raise_error(NotImplementedError) }
end
describe '#truncate' do
subject { http_io.truncate(nil) }
it { expect { subject }.to raise_error(NotImplementedError) }
end
describe '#flush' do
subject { http_io.flush }
it { expect { subject }.to raise_error(NotImplementedError) }
end
describe '#present?' do
subject { http_io.present? }
it { is_expected.to be_truthy }
end
end
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