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# encoding: utf-8
require 'cliver'
describe Cliver::Detector do
let(:detector) { Cliver::Detector.new(*args) }
let(:defaults) do
{
:version_pattern => Cliver::Detector::DEFAULT_VERSION_PATTERN,
:command_arg => Cliver::Detector::DEFAULT_COMMAND_ARG,
}
end
let(:args) { [] }
subject { detector }
it { should respond_to :to_proc }
its(:command_arg) { should eq defaults[:command_arg] }
its(:version_pattern) { should eq defaults[:version_pattern] }
context 'with one string argument' do
let(:version_arg) { '--release-version' }
let(:args) { [version_arg] }
its(:command_arg) { should eq [version_arg] }
its(:version_pattern) { should eq defaults[:version_pattern] }
end
context 'with one regexp argument' do
let(:regexp_arg) { /.*/ }
let(:args) { [regexp_arg] }
its(:command_arg) { should eq defaults[:command_arg] }
its(:version_pattern) { should eq regexp_arg }
end
context 'with both arguments' do
let(:version_arg) { '--release-version' }
let(:regexp_arg) { /.*/ }
let(:args) { [version_arg, regexp_arg] }
its(:command_arg) { should eq [version_arg] }
its(:version_pattern) { should eq regexp_arg }
end
context 'detecting a command' do
before(:each) do
Cliver::ShellCapture.stub(:new => capture)
end
context 'that reports version on stdout' do
let(:capture) { double('capture', :stdout => '1.1',
:stderr => 'Warning: There is a monkey 1.2 metres left of you.',
:command_found => true) }
it 'should prefer the stdout output' do
expect(detector.detect_version('foo')).to eq('1.1')
end
end
context 'that reports version on stderr' do
let(:capture) { double('capture', :stdout => '',
:stderr => 'Version: 1.666',
:command_found => true) }
it 'should prefer the stderr output' do
expect(detector.detect_version('foo')).to eq('1.666')
end
end
context 'that does not exist' do
let(:capture) { Cliver::ShellCapture.new('acommandnosystemshouldhave123') }
it 'should raise an exception' do
expect { detector.detect_version('foo') }.to raise_error(Cliver::Dependency::NotFound)
end
end
end
end
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