120 lines
3 KiB
Ruby
120 lines
3 KiB
Ruby
RSpec.describe Mutant::Zombifier do
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let(:root_require) { Pathname.new('project') }
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let(:pathname) do
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instance_double(::Pathname.singleton_class)
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end
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let(:require_highjack) do
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lambda do |block|
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original = ruby_vm.method(:require)
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allow(ruby_vm).to receive(:require, &block)
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original
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end
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end
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let(:options) do
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{
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load_path: %w[a b],
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includes: %w[project bar],
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namespace: :Zombie,
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require_highjack: require_highjack,
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root_require: root_require,
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pathname: pathname,
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kernel: ruby_vm
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}
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end
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let(:ruby_vm) do
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MutantSpec::RubyVM.new(
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[
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MutantSpec::RubyVM::EventExpectation::Require.new(
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expected_payload: {
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logical_name: 'project'
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}
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),
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MutantSpec::RubyVM::EventExpectation::Eval.new(
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expected_payload: {
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binding: TOPLEVEL_BINDING,
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source: "module Zombie\n module Project\n end\nend",
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source_location: 'a/project.rb'
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},
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trigger_requires: %w[foo bar]
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),
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MutantSpec::RubyVM::EventExpectation::Require.new(
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expected_payload: {
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logical_name: 'foo'
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},
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trigger_requires: %w[bar]
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),
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MutantSpec::RubyVM::EventExpectation::Require.new(
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expected_payload: {
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logical_name: 'bar'
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}
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),
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MutantSpec::RubyVM::EventExpectation::Eval.new(
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expected_payload: {
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binding: TOPLEVEL_BINDING,
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source: "module Zombie\n module Bar\n end\nend",
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source_location: 'b/bar.rb'
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},
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trigger_requires: %w[]
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),
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MutantSpec::RubyVM::EventExpectation::Require.new(
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expected_payload: {
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logical_name: 'bar'
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}
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)
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]
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)
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end
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let(:require_effects) do
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{
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'project' => { requires: [] }
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}
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end
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let(:file_entries) do
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{
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'a/project.rb' => { file: true, contents: 'module Project; end' },
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'b/bar.rb' => { file: true, contents: 'module Bar; end' }
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}
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end
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let(:file_system) do
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MutantSpec::FileSystem.new(
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Hash[
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file_entries.map { |key, attributes| [key, MutantSpec::FileState.new(attributes)] }
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]
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)
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end
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describe '.call' do
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def apply
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described_class.call(options)
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end
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before do
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allow(pathname).to receive(:new, &file_system.method(:path))
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end
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it 'returns self' do
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expect(apply).to be(described_class)
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end
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it 'consumes walks the VM through expected steps' do
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expect { apply }.to change { ruby_vm.done? }.from(false).to(true)
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end
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context 'when zombifier require fails' do
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let(:file_entries) do
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{}
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end
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it 'raises zombifier specific load error' do
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expect { apply }.to raise_error(described_class::LoadError, 'Cannot find file "project.rb" in load path')
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end
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end
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end
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end
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