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# frozen_string_literal: true
require 'helper'
class TestLexerStackState < Minitest::Test
def setup
@state = Parser::Lexer::StackState.new('state')
end
def test_push
refute @state.active?
assert_equal true, @state.push(true)
assert @state.active?
assert_equal false, @state.push(false)
refute @state.active?
end
def test_clear
@state.push true
@state.clear
refute @state.active?
end
def test_pop
@state.push(true)
assert_equal true, @state.pop
refute @state.active?
end
def test_pop_empty
assert_equal false, @state.pop
refute @state.active?
end
def test_lexpop_10
@state.push(true)
@state.push(false)
assert_equal true, @state.lexpop
assert_equal true, @state.pop
end
def test_lexpop_01
@state.push(false)
@state.push(true)
assert_equal true, @state.lexpop
assert_equal true, @state.pop
end
def test_lexpop_00
@state.push(false)
@state.push(false)
assert_equal false, @state.lexpop
assert_equal false, @state.pop
end
def test_dup
@state.push(true)
new_state = @state.dup
assert_equal true, @state.pop
assert_equal true, new_state.pop
end
def test_to_s
@state.push(true)
@state.push(false)
@state.push(false)
assert_equal '[100 <= state]', @state.to_s
end
end
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