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Contents
# encoding: utf-8 require 'spec_helper' describe Function::Proposition, '.new' do let(:object) { described_class } context 'with true argument' do subject { object.new(argument) } let(:argument) { true } it { should equal(Function::Proposition::Tautology.instance) } end context 'with false argument' do subject { object.new(argument) } let(:argument) { false } it { should equal(Function::Proposition::Contradiction.instance) } end context 'with a truthy argument' do subject { object.new(argument) } let(:argument) { 1 } it { should equal(Function::Proposition::Contradiction.instance) } end context 'with a falsey argument' do subject { object.new(argument) } let(:argument) { nil } it { should equal(Function::Proposition::Contradiction.instance) } end context 'with no arguments' do subject { object.new } specify { pending { expect { subject }.to raise_error(NotImplementedError, "#{object} is an abstract class") } } end end
Version data entries
1 entries across 1 versions & 1 rubygems
Version | Path |
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axiom-0.1.0 | spec/unit/axiom/function/proposition/class_methods/new_spec.rb |