47 lines
971 B
Ruby
47 lines
971 B
Ruby
RSpec.describe Mutant::Expression do
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let(:object) { described_class }
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let(:parser) { Mutant::Config::DEFAULT.expression_parser }
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describe '#prefix?' do
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let(:object) { parser.call('Foo*') }
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subject { object.prefix?(other) }
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context 'when object is a prefix of other' do
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let(:other) { parser.call('Foo::Bar') }
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it { should be(true) }
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end
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context 'when other is not a prefix of other' do
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let(:other) { parser.call('Bar') }
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it { should be(false) }
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end
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end
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describe '.try_parse' do
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let(:object) do
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Class.new(described_class) do
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include Anima.new(:foo)
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const_set(:REGEXP, /(?<foo>foo)/)
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end
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end
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subject { object.try_parse(input) }
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context 'on successful parse' do
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let(:input) { 'foo' }
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it { should eql(object.new(foo: 'foo')) }
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end
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context 'on unsuccessful parse' do
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let(:input) { 'bar' }
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it { should be(nil) }
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end
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end
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end
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