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require 'spec_helper'
describe Gitlab::Ci::Pipeline::Expression::Lexeme::Variable do
describe '.build' do
it 'creates a new instance of the token' do
expect(described_class.build('$VARIABLE'))
.to be_a(described_class)
end
end
describe '.type' do
it 'is a value lexeme' do
expect(described_class.type).to eq :value
end
end
describe '#evaluate' do
it 'returns variable value if it is defined' do
variable = described_class.new('VARIABLE')
expect(variable.evaluate(VARIABLE: 'my variable'))
.to eq 'my variable'
end
it 'allows to use a string as a variable key too' do
variable = described_class.new('VARIABLE')
expect(variable.evaluate('VARIABLE' => 'my variable'))
.to eq 'my variable'
end
it 'returns nil if it is not defined' do
variable = described_class.new('VARIABLE')
expect(variable.evaluate(OTHER: 'variable')).to be_nil
end
it 'returns an empty string if it is empty' do
variable = described_class.new('VARIABLE')
expect(variable.evaluate(VARIABLE: '')).to eq ''
end
end
end
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