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# frozen_string_literal: true
require_relative "test_helper"
module Prism
class RubyAPITest < TestCase
def test_ruby_api
filepath = __FILE__
source = File.read(filepath, binmode: true, external_encoding: Encoding::UTF_8)
assert_equal Prism.lex(source, filepath).value, Prism.lex_file(filepath).value
assert_equal Prism.dump(source, filepath), Prism.dump_file(filepath)
serialized = Prism.dump(source, filepath)
ast1 = Prism.load(source, serialized).value
ast2 = Prism.parse(source, filepath).value
ast3 = Prism.parse_file(filepath).value
assert_equal_nodes ast1, ast2
assert_equal_nodes ast2, ast3
end
def test_literal_value_method
assert_equal 123, parse_expression("123").value
assert_equal 3.14, parse_expression("3.14").value
assert_equal 42i, parse_expression("42i").value
assert_equal 42.1ri, parse_expression("42.1ri").value
assert_equal 3.14i, parse_expression("3.14i").value
assert_equal 42r, parse_expression("42r").value
assert_equal 0.5r, parse_expression("0.5r").value
assert_equal 42ri, parse_expression("42ri").value
assert_equal 0.5ri, parse_expression("0.5ri").value
end
def test_location_join
recv, args_node, _ = parse_expression("1234 + 567").child_nodes
arg = args_node.arguments[0]
joined = recv.location.join(arg.location)
assert_equal 0, joined.start_offset
assert_equal 10, joined.length
assert_raise RuntimeError, "Incompatible locations" do
arg.location.join(recv.location)
end
other_arg = parse_expression("1234 + 567").arguments.arguments[0]
assert_raise RuntimeError, "Incompatible sources" do
other_arg.location.join(recv.location)
end
assert_raise RuntimeError, "Incompatible sources" do
recv.location.join(other_arg.location)
end
end
private
def parse_expression(source)
Prism.parse(source).value.statements.body.first
end
end
end
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