47 lines
1.1 KiB
Ruby
47 lines
1.1 KiB
Ruby
RSpec.describe Mutant::RequireHighjack do
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let(:highjacked_calls) { [] }
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let(:require_calls) { [] }
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let(:target_module) do
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acc = require_calls
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Module.new do
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define_method(:require, &acc.method(:<<))
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module_function :require
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public :require
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end
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end
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def target_require(logical_name)
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Object.new.extend(target_module).require(logical_name)
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end
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describe '.call' do
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let(:logical_name) { double('Logical Name') }
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def apply
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described_class.call(target_module, highjacked_calls.method(:<<))
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end
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it 'returns the original implementation from singleton' do
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expect { apply.call(logical_name) }
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.to change { require_calls }
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.from([])
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.to([logical_name])
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end
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it 'does highjack target object #requires calls' do
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apply
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expect { target_require(logical_name) }
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.to change { highjacked_calls }
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.from([])
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.to([logical_name])
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end
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it 'does not call original require' do
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apply
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expect { target_require(logical_name) }
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.not_to change { require_calls }.from([])
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end
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end
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end
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