mirror of https://github.com/tailix/libkernaux.git
115 lines
2.8 KiB
Ruby
115 lines
2.8 KiB
Ruby
# frozen_string_literal: true
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require 'spec_helper'
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KernAux::Version.with_cmdline? and RSpec.describe KernAux, '.cmdline' do
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subject(:cmdline) { described_class.cmdline str }
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let(:str) { 'foo bar\\ baz "car cdr"' }
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it { is_expected.to be_instance_of Array }
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it { is_expected.to be_frozen }
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it { is_expected.to all be_instance_of String }
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it { is_expected.to all be_frozen }
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it { is_expected.to eq ['foo', 'bar baz', 'car cdr'] }
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context 'when str is empty' do
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let(:str) { '' }
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it { is_expected.to eq [] }
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end
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context 'when str has invalid type' do
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let(:str) { 123 }
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specify { expect { cmdline }.to raise_error TypeError }
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end
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context 'when str has EOL after backslash' do
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let(:str) { '\\' }
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specify do
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expect { cmdline }.to \
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raise_error described_class::CmdlineError, 'EOL after backslash'
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end
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end
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context 'when str has EOL after backslash inside quote' do
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let(:str) { '"\\' }
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specify do
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expect { cmdline }.to raise_error \
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described_class::CmdlineError, 'EOL after backslash inside quote'
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end
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end
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context 'when str has unescaped quotation mark' do
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let(:str) { 'foo"' }
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specify do
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expect { cmdline }.to \
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raise_error described_class::CmdlineError, 'unescaped quotation mark'
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end
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end
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context 'when str has EOL inside quote' do
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let(:str) { '"' }
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specify do
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expect { cmdline }.to \
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raise_error described_class::CmdlineError, 'EOL inside quote'
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end
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end
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context 'when there are not too many args' do
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let(:str) { 'a ' * 256 }
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it { is_expected.to eq ['a'] * 256 }
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end
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context 'when there are too many args' do
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let(:str) { 'a ' * 257 }
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specify do
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expect { cmdline }.to \
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raise_error described_class::CmdlineError, 'too many args'
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end
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end
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context 'when args don\'t cause buffer overflow' do
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let(:str) { 'a' * 4095 }
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it { is_expected.to eq ['a' * 4095] }
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end
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context 'when args cause buffer overflow' do
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let(:str) { 'a' * 4096 }
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specify do
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expect { cmdline }.to \
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raise_error described_class::CmdlineError, 'EOF or buffer overflow'
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end
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end
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context 'using common tests' do
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cmdline_yml = File.expand_path('../../../../../common/cmdline.yml', __dir__)
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YAML.safe_load_file(cmdline_yml).each do |test|
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escape_str = lambda do |str|
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eval "\"#{str}\"", binding, __FILE__, __LINE__ # "str"
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end
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cmdline = escape_str.call test['cmdline']
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arg_count_max = test['arg_count_max']
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buffer_size = test['buffer_size']
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result = test['result']&.map(&escape_str)
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next unless arg_count_max.nil? && buffer_size.nil? && !result.nil?
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it "transforms #{cmdline.inspect} to #{result.inspect}" do
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expect(described_class.cmdline(cmdline)).to eq result
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end
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end
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end
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end
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