70 lines
2 KiB
Ruby
70 lines
2 KiB
Ruby
require 'spec_helper'
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describe Gitlab::Ci::Pipeline::Expression::Lexer do
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let(:token_class) do
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Gitlab::Ci::Pipeline::Expression::Token
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end
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describe '#tokens' do
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it 'returns single value' do
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tokens = described_class.new('$VARIABLE').tokens
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expect(tokens).to be_one
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expect(tokens).to all(be_an_instance_of(token_class))
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end
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it 'does ignore whitespace characters' do
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tokens = described_class.new("\t$VARIABLE ").tokens
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expect(tokens).to be_one
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expect(tokens).to all(be_an_instance_of(token_class))
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end
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it 'returns multiple values of the same token' do
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tokens = described_class.new("$VARIABLE1 $VARIABLE2").tokens
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expect(tokens.size).to eq 2
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expect(tokens).to all(be_an_instance_of(token_class))
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end
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it 'returns multiple values with different tokens' do
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tokens = described_class.new('$VARIABLE "text" "value"').tokens
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expect(tokens.size).to eq 3
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expect(tokens.first.value).to eq '$VARIABLE'
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expect(tokens.second.value).to eq '"text"'
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expect(tokens.third.value).to eq '"value"'
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end
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it 'returns tokens and operators' do
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tokens = described_class.new('$VARIABLE == "text"').tokens
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expect(tokens.size).to eq 3
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expect(tokens.first.value).to eq '$VARIABLE'
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expect(tokens.second.value).to eq '=='
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expect(tokens.third.value).to eq '"text"'
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end
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it 'limits statement to specified amount of tokens' do
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lexer = described_class.new("$V1 $V2 $V3 $V4", max_tokens: 3)
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expect { lexer.tokens }
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.to raise_error described_class::SyntaxError
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end
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it 'raises syntax error in case of finding unknown tokens' do
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lexer = described_class.new('$V1 123 $V2')
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expect { lexer.tokens }
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.to raise_error described_class::SyntaxError
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end
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end
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describe '#lexemes' do
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it 'returns an array of syntax lexemes' do
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lexer = described_class.new('$VAR "text"')
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expect(lexer.lexemes).to eq %w[variable string]
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end
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end
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end
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