37 lines
846 B
Ruby
37 lines
846 B
Ruby
# frozen_string_literal: true
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begin
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require_relative 'helper'
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require 'fiddle/struct'
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rescue LoadError
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end
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module Fiddle
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class TestCUnionEntity < TestCase
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def test_class_size
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size = CUnionEntity.size([TYPE_DOUBLE, TYPE_CHAR])
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assert_equal SIZEOF_DOUBLE, size
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end
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def test_class_size_with_count
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size = CUnionEntity.size([[TYPE_DOUBLE, 2], [TYPE_CHAR, 20]])
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assert_equal SIZEOF_CHAR * 20, size
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end
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def test_set_ctypes
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CUnionEntity.malloc([TYPE_INT, TYPE_LONG], Fiddle::RUBY_FREE) do |union|
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union.assign_names %w[int long]
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# this test is roundabout because the stored ctypes are not accessible
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union['long'] = 1
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assert_equal 1, union['long']
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union['int'] = 1
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assert_equal 1, union['int']
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end
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end
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end
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end if defined?(Fiddle)
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