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require 'test_helper'
class ParserUnitTest < Minitest::Test
include Liquid
def test_consume
p = Parser.new("wat: 7")
assert_equal 'wat', p.consume(:id)
assert_equal ':', p.consume(:colon)
assert_equal '7', p.consume(:number)
end
def test_jump
p = Parser.new("wat: 7")
p.jump(2)
assert_equal '7', p.consume(:number)
end
def test_consume?
p = Parser.new("wat: 7")
assert_equal 'wat', p.consume?(:id)
assert_equal false, p.consume?(:dot)
assert_equal ':', p.consume(:colon)
assert_equal '7', p.consume?(:number)
end
def test_id?
p = Parser.new("wat 6 Peter Hegemon")
assert_equal 'wat', p.id?('wat')
assert_equal false, p.id?('endgame')
assert_equal '6', p.consume(:number)
assert_equal 'Peter', p.id?('Peter')
assert_equal false, p.id?('Achilles')
end
def test_look
p = Parser.new("wat 6 Peter Hegemon")
assert_equal true, p.look(:id)
assert_equal 'wat', p.consume(:id)
assert_equal false, p.look(:comparison)
assert_equal true, p.look(:number)
assert_equal true, p.look(:id, 1)
assert_equal false, p.look(:number, 1)
end
def test_expressions
p = Parser.new("hi.there hi?[5].there? hi.there.bob")
assert_equal 'hi.there', p.expression
assert_equal 'hi?[5].there?', p.expression
assert_equal 'hi.there.bob', p.expression
p = Parser.new("567 6.0 'lol' \"wut\"")
assert_equal '567', p.expression
assert_equal '6.0', p.expression
assert_equal "'lol'", p.expression
assert_equal '"wut"', p.expression
end
def test_ranges
p = Parser.new("(5..7) (1.5..9.6) (young..old) (hi[5].wat..old)")
assert_equal '(5..7)', p.expression
assert_equal '(1.5..9.6)', p.expression
assert_equal '(young..old)', p.expression
assert_equal '(hi[5].wat..old)', p.expression
end
def test_arguments
p = Parser.new("filter: hi.there[5], keyarg: 7")
assert_equal 'filter', p.consume(:id)
assert_equal ':', p.consume(:colon)
assert_equal 'hi.there[5]', p.argument
assert_equal ',', p.consume(:comma)
assert_equal 'keyarg: 7', p.argument
end
def test_invalid_expression
assert_raises(SyntaxError) do
p = Parser.new("==")
p.expression
end
end
end
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