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e03d6d9eb8
This method returns an array of objects referenced by given object. If given object is special objects such as true/false/nil/Fixnum etc then it returns nil. See rdoc for details. [ruby-core:39772] * test/objspace/test_objspace.rb: add a test for this method. * gc.c: add rb_objspace_reachable_objects_from(). To make this function, add several member `mark_func_data' to rb_objspace_t. If mark_func_data is not null, then gc_mark() calls mark_func_data::mark_func. * gc.h: export rb_objspace_reachable_objects_from(). git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@37094 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
97 lines
3.1 KiB
Ruby
97 lines
3.1 KiB
Ruby
require "test/unit"
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require "objspace"
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require_relative "../ruby/envutil"
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class TestObjSpace < Test::Unit::TestCase
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def test_memsize_of
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assert_equal(0, ObjectSpace.memsize_of(true))
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assert_equal(0, ObjectSpace.memsize_of(nil))
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assert_equal(0, ObjectSpace.memsize_of(1))
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assert_kind_of(Integer, ObjectSpace.memsize_of(Object.new))
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assert_kind_of(Integer, ObjectSpace.memsize_of(Class))
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assert_kind_of(Integer, ObjectSpace.memsize_of(""))
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assert_kind_of(Integer, ObjectSpace.memsize_of([]))
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assert_kind_of(Integer, ObjectSpace.memsize_of({}))
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assert_kind_of(Integer, ObjectSpace.memsize_of(//))
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f = File.new(__FILE__)
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assert_kind_of(Integer, ObjectSpace.memsize_of(f))
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f.close
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assert_kind_of(Integer, ObjectSpace.memsize_of(/a/.match("a")))
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assert_kind_of(Integer, ObjectSpace.memsize_of(Struct.new(:a)))
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assert_operator(ObjectSpace.memsize_of(Regexp.new("(a)"*1000).match("a"*1000)),
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:>,
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ObjectSpace.memsize_of(//.match("")))
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end
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def test_argf_memsize
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size = ObjectSpace.memsize_of(ARGF)
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assert_kind_of(Integer, size)
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assert_operator(size, :>, 0)
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argf = ARGF.dup
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argf.inplace_mode = nil
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size = ObjectSpace.memsize_of(argf)
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argf.inplace_mode = "inplace_mode_suffix"
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assert_equal(size + 20, ObjectSpace.memsize_of(argf))
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end
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def test_memsize_of_all
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assert_kind_of(Integer, a = ObjectSpace.memsize_of_all)
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assert_kind_of(Integer, b = ObjectSpace.memsize_of_all(String))
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assert(a > b)
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assert(a > 0)
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assert(b > 0)
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assert_raise(TypeError) {ObjectSpace.memsize_of_all('error')}
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end
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def test_count_objects_size
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res = ObjectSpace.count_objects_size
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assert_equal(false, res.empty?)
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assert_equal(true, res[:TOTAL] > 0)
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arg = {}
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ObjectSpace.count_objects_size(arg)
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assert_equal(false, arg.empty?)
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end
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def test_count_nodes
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res = ObjectSpace.count_nodes
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assert_equal(false, res.empty?)
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arg = {}
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ObjectSpace.count_nodes(arg)
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assert_equal(false, arg.empty?)
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end
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def test_count_tdata_objects
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res = ObjectSpace.count_tdata_objects
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assert_equal(false, res.empty?)
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arg = {}
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ObjectSpace.count_tdata_objects(arg)
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assert_equal(false, arg.empty?)
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end
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def test_reachable_objects_from
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assert_equal(nil, ObjectSpace.reachable_objects_from(nil))
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assert_equal([Array, 'a', 'b', 'c'], ObjectSpace.reachable_objects_from(['a', 'b', 'c']))
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assert_equal([Array, 'a', 'a', 'a'], ObjectSpace.reachable_objects_from(['a', 'a', 'a']))
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assert_equal([Array, 'a', 'a'], ObjectSpace.reachable_objects_from(['a', v = 'a', v]))
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assert_equal([Array, 'a'], ObjectSpace.reachable_objects_from([v = 'a', v, v]))
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long_ary = Array.new(1_000){''}
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max = 0
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ObjectSpace.each_object{|o|
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refs = ObjectSpace.reachable_objects_from(o)
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max = [refs.size, max].max
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unless refs.nil?
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refs.each{|ro|
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# check this referenced object is not internal object
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assert_equal(false, ro.nil?)
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}
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end
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}
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STDERR.puts max
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assert_equal(true, max >= 1_001) # 1000 elems + Array class
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end
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end
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