зеркало из https://github.com/github/ruby.git
78 строки
2.1 KiB
Ruby
78 строки
2.1 KiB
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 TestCStructEntity < TestCase
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def test_class_size
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types = [TYPE_DOUBLE, TYPE_CHAR]
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size = CStructEntity.size types
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alignments = types.map { |type| PackInfo::ALIGN_MAP[type] }
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expected = PackInfo.align 0, alignments[0]
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expected += PackInfo::SIZE_MAP[TYPE_DOUBLE]
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expected = PackInfo.align expected, alignments[1]
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expected += PackInfo::SIZE_MAP[TYPE_CHAR]
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expected = PackInfo.align expected, alignments.max
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assert_equal expected, size
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end
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def test_class_size_with_count
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size = CStructEntity.size([[TYPE_DOUBLE, 2], [TYPE_CHAR, 20]])
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types = [TYPE_DOUBLE, TYPE_CHAR]
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alignments = types.map { |type| PackInfo::ALIGN_MAP[type] }
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expected = PackInfo.align 0, alignments[0]
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expected += PackInfo::SIZE_MAP[TYPE_DOUBLE] * 2
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expected = PackInfo.align expected, alignments[1]
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expected += PackInfo::SIZE_MAP[TYPE_CHAR] * 20
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expected = PackInfo.align expected, alignments.max
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assert_equal expected, size
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end
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def test_set_ctypes
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union = CStructEntity.malloc [TYPE_INT, TYPE_LONG]
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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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union['int'] = 2
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assert_equal 1, union['long']
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assert_equal 2, union['int']
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end
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def test_aref_pointer_array
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team = CStructEntity.malloc([[TYPE_VOIDP, 2]])
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team.assign_names(["names"])
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alice = Fiddle::Pointer.malloc(6)
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alice[0, 6] = "Alice\0"
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bob = Fiddle::Pointer.malloc(4)
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bob[0, 4] = "Bob\0"
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team["names"] = [alice, bob]
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assert_equal(["Alice", "Bob"], team["names"].map(&:to_s))
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end
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def test_aref_pointer
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user = CStructEntity.malloc([TYPE_VOIDP])
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user.assign_names(["name"])
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alice = Fiddle::Pointer.malloc(6)
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alice[0, 6] = "Alice\0"
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user["name"] = alice
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assert_equal("Alice", user["name"].to_s)
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end
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end
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end if defined?(Fiddle)
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