57 lines
1.4 KiB
Ruby
57 lines
1.4 KiB
Ruby
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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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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 raised exceptions 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 does return marshallable data, but process exits with nonzero exitstatus' do
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let(:block) do
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lambda do
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redirect_stderr
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at_exit do
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raise
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end
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:foo
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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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