debian-mirror-gitlab/spec/lib/gitlab/utils/gzip_spec.rb

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2020-11-24 15:15:51 +05:30
# frozen_string_literal: true
require 'fast_spec_helper'
RSpec.describe Gitlab::Utils::Gzip do
before do
example_class = Class.new do
include Gitlab::Utils::Gzip
def lorem_ipsum
"Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod "\
"tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim "\
"veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea "\
"commodo consequat. Duis aute irure dolor in reprehenderit in voluptate "\
"velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat "\
"cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id "\
"est laborum."
end
end
stub_const('ExampleClass', example_class)
end
subject { ExampleClass.new }
let(:sample_string) { subject.lorem_ipsum }
let(:compressed_string) { subject.gzip_compress(sample_string) }
describe "#gzip_compress" do
it "compresses data passed to it" do
expect(compressed_string.length).to be < sample_string.length
end
it "returns uncompressed data when encountering Zlib::GzipFile::Error" do
expect(ActiveSupport::Gzip).to receive(:compress).and_raise(Zlib::GzipFile::Error)
expect(compressed_string.length).to eq sample_string.length
end
end
describe "#gzip_decompress" do
let(:decompressed_string) { subject.gzip_decompress(compressed_string) }
it "decompresses encoded data" do
expect(decompressed_string).to eq sample_string
end
it "returns compressed data when encountering Zlib::GzipFile::Error" do
expect(ActiveSupport::Gzip).to receive(:decompress).and_raise(Zlib::GzipFile::Error)
expect(decompressed_string).not_to eq sample_string.length
end
it "returns unmodified data when it is determined to be uncompressed" do
expect(subject.gzip_decompress(sample_string)).to eq sample_string
end
end
end