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require_relative 'test_base'
require 'dl/func'
require 'dl/value'
require 'dl/struct'
class DL::TestCUnionEntity < DL::TestBase
def test_class_size
size = DL::CUnionEntity.size([DL::TYPE_DOUBLE, DL::TYPE_CHAR])
assert_equal DL::SIZEOF_DOUBLE, size
end
def test_class_size_with_count
size = DL::CUnionEntity.size([[DL::TYPE_DOUBLE, 2], [DL::TYPE_CHAR, 20]])
assert_equal DL::SIZEOF_CHAR * 20, size
end
def test_set_ctypes
union = DL::CUnionEntity.malloc [DL::TYPE_INT, DL::TYPE_LONG]
union.assign_names %w[int long]
# this test is roundabout because the stored ctypes are not accessible
union['long'] = 1
assert_equal 1, union['long']
union['int'] = 1
assert_equal 1, union['int']
end
end
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