41 lines
931 B
Ruby
41 lines
931 B
Ruby
require_relative "helper"
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#testing that parsing strings that we know to be correct returns the nodes we expect
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# in a way the combination of test_parser and test_transform
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class TestNodes < MiniTest::Test
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def setup
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@parser = Parser::Composed.new
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@transform = Parser::Transform.new
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end
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def parse string
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syntax = @parser.parse(string)
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tree = @transform.apply(syntax)
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tree
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end
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def test_number
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tree = parse "42"
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assert_kind_of Vm::NumberExpression , tree
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assert_equal 42 , tree.value
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end
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def test_args
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tree = parse "( 42 )"
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assert_kind_of Hash , tree
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assert_kind_of Vm::NumberExpression , tree[:args]
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assert_equal 42 , tree[:args].value
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end
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def test_arg_list
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@parser = @parser.args
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tree = parse "(42, foo)"
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assert_instance_of Array , tree
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assert_equal 42 , tree.first.value
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assert_equal "foo" , tree.last.name
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end
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end
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