Sha256: 8ce69ceb711193d66533b9c6adaffa3013804ddaa06e5aeb359a2e7103add672
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Size: 1.37 KB
Versions: 8
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Contents
RSpec.describe Mutant::AST do let(:object) { described_class } describe '.find_last_path' do subject { object.find_last_path(root, &block) } let(:root) { s(:root, parent) } let(:child_a) { s(:child_a) } let(:child_b) { s(:child_b) } let(:parent) { s(:parent, child_a, child_b) } def path subject.map(&:type) end context 'when no node matches' do let(:block) { ->(_) { false } } it { should eql([]) } end context 'when called without block' do let(:block) { nil } it 'raises error' do expect { subject }.to raise_error(ArgumentError, 'block expected') end end context 'on non Parser::AST::Node child' do let(:block) { ->(node) { fail if node.equal?(child_a) } } let(:child_a) { AST::Node.new(:foo) } it 'does not yield that node' do expect(path).to eql([]) end end context 'when one node matches' do let(:block) { ->(node) { node.equal?(child_a) } } it 'returns the full path' do expect(path).to eql(%i[root parent child_a]) end end context 'when two nodes match' do let(:block) { ->(node) { node.equal?(child_a) || node.equal?(child_b) } } it 'returns the last full path' do expect(path).to eql(%i[root parent child_b]) end end end end
Version data entries
8 entries across 8 versions & 1 rubygems