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# frozen_string_literal: true
require 'fast_spec_helper'
require 'rspec-parameterized'
describe Gitlab::Ci::Pipeline::Expression::Lexeme::And do
let(:left) { double('left', evaluate: nil) }
let(:right) { double('right', evaluate: nil) }
describe '.build' do
it 'creates a new instance of the token' do
expect(described_class.build('&&', left, right)).to be_a(described_class)
end
context 'with non-evaluable operands' do
let(:left) { double('left') }
let(:right) { double('right') }
it 'raises an operator error' do
expect { described_class.build('&&', left, right) }.to raise_error Gitlab::Ci::Pipeline::Expression::Lexeme::Operator::OperatorError
end
end
end
describe '.type' do
it 'is an operator' do
expect(described_class.type).to eq :operator
end
end
describe '.precedence' do
it 'has a precedence' do
expect(described_class.precedence).to be_an Integer
end
end
describe '#evaluate' do
let(:operator) { described_class.new(left, right) }
subject { operator.evaluate }
before do
allow(left).to receive(:evaluate).and_return(left_value)
allow(right).to receive(:evaluate).and_return(right_value)
end
context 'when left and right are truthy' do
where(:left_value, :right_value) do
[true, 1, 'a'].permutation(2).to_a
end
with_them do
it { is_expected.to be_truthy }
it { is_expected.to eq(right_value) }
end
end
context 'when left or right is falsey' do
where(:left_value, :right_value) do
[true, false, nil].permutation(2).to_a
end
with_them do
it { is_expected.to be_falsey }
end
end
context 'when left and right are falsey' do
where(:left_value, :right_value) do
[false, nil].permutation(2).to_a
end
with_them do
it { is_expected.to be_falsey }
it { is_expected.to eq(left_value) }
end
end
end
end
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