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# frozen_string_literal: true
require "yarp"
require "ripper"
require "pp"
require "test/unit"
require "tempfile"
puts "Using YARP backend: #{YARP::BACKEND}" if ENV["YARP_FFI_BACKEND"]
module YARP
module Assertions
private
def assert_equal_nodes(expected, actual, compare_location: true, parent: nil)
assert_equal expected.class, actual.class
case expected
when Array
assert_equal(
expected.size,
actual.size,
-> { "Arrays were different sizes. Parent: #{parent.pretty_inspect}" }
)
expected.zip(actual).each do |(expected_element, actual_element)|
assert_equal_nodes(
expected_element,
actual_element,
compare_location: compare_location,
parent: actual
)
end
when YARP::SourceFileNode
deconstructed_expected = expected.deconstruct_keys(nil)
deconstructed_actual = actual.deconstruct_keys(nil)
assert_equal deconstructed_expected.keys, deconstructed_actual.keys
# Filepaths can be different if test suites were run
# on different machines.
# We accommodate for this by comparing the basenames,
# and not the absolute filepaths
assert_equal deconstructed_expected.except(:filepath), deconstructed_actual.except(:filepath)
assert_equal File.basename(deconstructed_expected[:filepath]), File.basename(deconstructed_actual[:filepath])
when YARP::Node
deconstructed_expected = expected.deconstruct_keys(nil)
deconstructed_actual = actual.deconstruct_keys(nil)
assert_equal deconstructed_expected.keys, deconstructed_actual.keys
deconstructed_expected.each_key do |key|
assert_equal_nodes(
deconstructed_expected[key],
deconstructed_actual[key],
compare_location: compare_location,
parent: actual
)
end
when YARP::Location
assert_operator actual.start_offset, :<=, actual.end_offset, -> {
"start_offset > end_offset for #{actual.inspect}, parent is #{parent.pretty_inspect}"
}
if compare_location
assert_equal(
expected.start_offset,
actual.start_offset,
-> { "Start locations were different. Parent: #{parent.pretty_inspect}" }
)
assert_equal(
expected.end_offset,
actual.end_offset,
-> { "End locations were different. Parent: #{parent.pretty_inspect}" }
)
end
else
assert_equal expected, actual
end
end
def assert_valid_locations(value, parent: nil)
case value
when Array
value.each do |element|
assert_valid_locations(element, parent: value)
end
when YARP::Node
value.deconstruct_keys(nil).each_value do |field|
assert_valid_locations(field, parent: value)
end
when YARP::Location
assert_operator value.start_offset, :<=, value.end_offset, -> {
"start_offset > end_offset for #{value.inspect}, parent is #{parent.pretty_inspect}"
}
end
end
end
end
Test::Unit::TestCase.include(YARP::Assertions)
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