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require File.expand_path('../helper', __FILE__)
class SequenceTest < Test::Unit::TestCase
def test_terminal?
rule = Sequence.new
assert_equal(false, rule.terminal?)
end
def test_exec
a = Rule.for('a')
b = Rule.for('b')
c = Rule.for('c')
rule = Sequence.new([ a, b, c ])
events = rule.exec(Input.new(''))
assert_equal([], events)
expected_events = [
rule,
a, CLOSE, 1,
b, CLOSE, 1,
c, CLOSE, 1,
CLOSE, 3
]
events = rule.exec(Input.new('abc'))
assert_equal(expected_events, events)
end
def test_to_s
rule = Sequence.new(%w<a b>)
assert_equal('"a" "b"', rule.to_s)
end
def test_to_s_with_label
rule = Sequence.new(%w<a b>)
rule.label = 'a_label'
assert_equal('a_label:("a" "b")', rule.to_s)
end
def test_to_embedded_s
rule1 = Sequence.new(%w<a b>)
rule2 = Sequence.new(%w<c d>)
rule = Sequence.new([rule1, rule2])
assert_equal('("a" "b") ("c" "d")', rule.to_s)
end
def test_to_embedded_s_with_label
rule1 = Sequence.new(%w<a b>)
rule2 = Sequence.new(%w<c d>)
rule2.label = 'a_label'
rule = Sequence.new([rule1, rule2])
assert_equal('("a" "b") a_label:("c" "d")', rule.to_s)
end
end
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