73 lines
2.0 KiB
Ruby
73 lines
2.0 KiB
Ruby
RSpec.describe Mutant::WarningExpectation do
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let(:object) { described_class.new(expected_warnings) }
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let(:expected_warnings) { [] }
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let(:actual_warnings) { [] }
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let(:warning_a) { "foo.rb:10: warning: We have a problem!\n" }
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let(:warning_b) { "bar.rb:10: warning: We have an other problem!\n" }
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describe '#execute' do
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subject { object.execute(&block) }
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before do
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@called = false
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end
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let(:block) do
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lambda do
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@called = true
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actual_warnings.each(&Kernel.method(:warn))
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end
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end
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it 'executes block' do
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expect { subject }.to change { @called }.from(false).to(true)
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end
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context 'when no warnings occur during block execution' do
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context 'and no warnings are expected' do
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it_should_behave_like 'a command method'
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end
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context 'and warnings are expected' do
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let(:expected_warnings) { [warning_a] }
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before do
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expect($stderr).to receive(:puts).with("Expected but missing warnings: #{expected_warnings}")
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end
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it_should_behave_like 'a command method'
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end
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end
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context 'when warnings occur during block execution' do
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let(:actual_warnings) { [warning_a, warning_b] }
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context 'and only some no warnings are expected' do
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let(:expected_warnings) { [warning_a] }
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it 'raises an expectation error' do
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expect { subject }.to raise_error(Mutant::WarningExpectation::ExpectationError.new(expected_warnings))
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end
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end
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context 'and all warnings are expected' do
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let(:expected_warnings) { [warning_a, warning_b] }
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it_should_behave_like 'a command method'
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end
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context 'and there is an expected warning missing' do
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let(:expected_warnings) { [warning_a] }
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let(:actual_warnings) { [warning_b] }
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it 'raises an expectation error' do
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expect { subject }.to raise_error(Mutant::WarningExpectation::ExpectationError.new([warning_b]))
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end
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end
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end
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end
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end
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