63e03dada7
So that we could read last few lines rather than read the entire file which could be huge.
40 lines
930 B
Ruby
40 lines
930 B
Ruby
require 'spec_helper'
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describe Gitlab::Ci::TraceReader do
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let(:path) { __FILE__ }
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let(:lines) { File.readlines(path) }
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let(:bytesize) { lines.sum(&:bytesize) }
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it 'returns last few lines' do
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10.times do
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subject = build_subject
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last_lines = random_lines
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expected = lines.last(last_lines).join
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expect(subject.read(last_lines: last_lines)).to eq(expected)
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end
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end
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it 'returns everything if trying to get too many lines' do
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expect(build_subject.read(last_lines: lines.size * 2)).to eq(lines.join)
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end
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it 'raises an error if not passing an integer for last_lines' do
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expect do
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build_subject.read(last_lines: lines)
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end.to raise_error(ArgumentError)
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end
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def random_lines
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Random.rand(lines.size) + 1
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end
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def random_buffer
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Random.rand(bytesize) + 1
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end
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def build_subject
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described_class.new(__FILE__, buffer_size: random_buffer)
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end
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end
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