61 lines
1.5 KiB
Ruby
61 lines
1.5 KiB
Ruby
require 'spec_helper'
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describe Mutant::Isolation do
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describe '.isolate' do
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let(:object) { described_class }
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before do
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unless RUBY_VERSION.eql?('2.1.2')
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skip 'Series of events is indeterministic cross ruby implementations. Skipping this test under non 2.1.2'
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end
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end
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let(:expected_return) { :foo }
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subject { object.call(&block) }
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def redirect_stderr
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$stderr = File.open('/dev/null')
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end
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unless ENV['COVERAGE']
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context 'when block returns mashallable data, and process exists zero' do
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let(:block) do
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lambda do
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:data_from_child_process
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end
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end
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it { should eql(:data_from_child_process) }
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end
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end
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context 'when block does return marshallable data' do
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let(:block) do
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lambda do
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redirect_stderr
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$stderr # not mashallable, nothing written to pipe and raises exception in child
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end
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end
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it 'raises an exception' do
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expect { subject }.to raise_error(described_class::Error, 'Childprocess wrote un-unmarshallable data')
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end
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end
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context 'when block causes the child to exit nonzero' do
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let(:block) do
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lambda do
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method = Kernel.method(:exit!)
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Kernel.define_singleton_method(:exit!) do |_status|
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method.call(1)
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end
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end
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end
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it 'raises an exception' do
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expect { subject }.to raise_error(described_class::Error, 'Childprocess exited with nonzero exit status: 1')
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end
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end
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end
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end
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