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When you change this to true, you may need to add more tests. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53141 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
376 lines
12 KiB
Ruby
376 lines
12 KiB
Ruby
# frozen_string_literal: false
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require "test/unit"
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require "objspace"
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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_memsize_of_root_shared_string
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a = "hello" * 5
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b = a.dup
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c = nil
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ObjectSpace.each_object(String) {|x| break c = x if x == a and x.frozen?}
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rv_size = GC::INTERNAL_CONSTANTS[:RVALUE_SIZE]
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assert_equal([rv_size, rv_size, 26 + rv_size], [a, b, c].map {|x| ObjectSpace.memsize_of(x)})
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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_operator(a, :>, b)
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assert_operator(a, :>, 0)
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assert_operator(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_not_empty(res)
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assert_operator(res[:TOTAL], :>, 0)
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arg = {}
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ObjectSpace.count_objects_size(arg)
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assert_not_empty(arg)
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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_not_empty(res)
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arg = {}
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ObjectSpace.count_nodes(arg)
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assert_not_empty(arg)
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bug8014 = '[ruby-core:53130] [Bug #8014]'
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assert_empty(arg.select {|k, v| !(Symbol === k && Integer === v)}, bug8014)
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end if false
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def test_count_tdata_objects
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res = ObjectSpace.count_tdata_objects
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assert_not_empty(res)
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arg = {}
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ObjectSpace.count_tdata_objects(arg)
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assert_not_empty(arg)
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end
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def test_count_imemo_objects
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res = ObjectSpace.count_imemo_objects
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assert_not_empty(res)
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assert_not_nil(res[:imemo_cref])
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arg = {}
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res = ObjectSpace.count_imemo_objects(arg)
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assert_not_empty(res)
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end
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def test_memsize_of_iseq
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iseqw = RubyVM::InstructionSequence.compile('def a; a = :b; end')
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base_obj_size = ObjectSpace.memsize_of(Object.new)
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assert_operator(ObjectSpace.memsize_of(iseqw), :>, base_obj_size)
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end
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def test_reachable_objects_from
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assert_separately %w[--disable-gem -robjspace], __FILE__, __LINE__, <<-'eom'
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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_with_index {|ro, i|
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assert_not_nil(ro, "#{i}: this referenced object is internal object")
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}
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end
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}
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assert_operator(max, :>=, long_ary.size+1, "1000 elems + Array class")
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eom
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end
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def test_reachable_objects_from_root
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root_objects = ObjectSpace.reachable_objects_from_root
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assert_operator(root_objects.size, :>, 0)
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root_objects.each{|category, objects|
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assert_kind_of(String, category)
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assert_kind_of(Array, objects)
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assert_operator(objects.size, :>, 0)
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}
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end
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def test_reachable_objects_size
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assert_separately %w[--disable-gem -robjspace], __FILE__, __LINE__, <<-'eom'
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ObjectSpace.each_object{|o|
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ObjectSpace.reachable_objects_from(o).each{|reached_obj|
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size = ObjectSpace.memsize_of(reached_obj)
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assert_kind_of(Integer, size)
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assert_operator(size, :>=, 0)
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}
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}
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eom
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end
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def test_trace_object_allocations
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Class.name
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o0 = Object.new
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ObjectSpace.trace_object_allocations{
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o1 = Object.new; line1 = __LINE__; c1 = GC.count
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o2 = "xyzzy" ; line2 = __LINE__; c2 = GC.count
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o3 = [1, 2] ; line3 = __LINE__; c3 = GC.count
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assert_equal(nil, ObjectSpace.allocation_sourcefile(o0))
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assert_equal(nil, ObjectSpace.allocation_sourceline(o0))
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assert_equal(nil, ObjectSpace.allocation_generation(o0))
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assert_equal(line1, ObjectSpace.allocation_sourceline(o1))
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assert_equal(__FILE__, ObjectSpace.allocation_sourcefile(o1))
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assert_equal(c1, ObjectSpace.allocation_generation(o1))
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assert_equal(Class.name, ObjectSpace.allocation_class_path(o1))
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assert_equal(:new, ObjectSpace.allocation_method_id(o1))
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assert_equal(__FILE__, ObjectSpace.allocation_sourcefile(o2))
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assert_equal(line2, ObjectSpace.allocation_sourceline(o2))
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assert_equal(c2, ObjectSpace.allocation_generation(o2))
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assert_equal(self.class.name, ObjectSpace.allocation_class_path(o2))
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assert_equal(__method__, ObjectSpace.allocation_method_id(o2))
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assert_equal(__FILE__, ObjectSpace.allocation_sourcefile(o3))
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assert_equal(line3, ObjectSpace.allocation_sourceline(o3))
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assert_equal(c3, ObjectSpace.allocation_generation(o3))
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assert_equal(self.class.name, ObjectSpace.allocation_class_path(o3))
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assert_equal(__method__, ObjectSpace.allocation_method_id(o3))
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}
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end
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def test_trace_object_allocations_start_stop_clear
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ObjectSpace.trace_object_allocations_clear # clear object_table to get rid of erroneous detection for obj3
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GC.disable # suppress potential object reuse. see [Bug #11271]
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begin
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ObjectSpace.trace_object_allocations_start
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begin
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ObjectSpace.trace_object_allocations_start
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begin
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ObjectSpace.trace_object_allocations_start
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obj0 = Object.new
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ensure
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ObjectSpace.trace_object_allocations_stop
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obj1 = Object.new
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end
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ensure
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ObjectSpace.trace_object_allocations_stop
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obj2 = Object.new
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end
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ensure
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ObjectSpace.trace_object_allocations_stop
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obj3 = Object.new
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end
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assert_equal(__FILE__, ObjectSpace.allocation_sourcefile(obj0))
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assert_equal(__FILE__, ObjectSpace.allocation_sourcefile(obj1))
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assert_equal(__FILE__, ObjectSpace.allocation_sourcefile(obj2))
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assert_equal(nil , ObjectSpace.allocation_sourcefile(obj3)) # after tracing
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ObjectSpace.trace_object_allocations_clear
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assert_equal(nil, ObjectSpace.allocation_sourcefile(obj0))
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assert_equal(nil, ObjectSpace.allocation_sourcefile(obj1))
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assert_equal(nil, ObjectSpace.allocation_sourcefile(obj2))
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assert_equal(nil, ObjectSpace.allocation_sourcefile(obj3))
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ensure
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GC.enable
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end
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def test_dump_flags
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info = ObjectSpace.dump("foo".freeze)
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assert_match /"wb_protected":true, "old":true/, info
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assert_match /"fstring":true/, info
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end
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def test_dump_to_default
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line = nil
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info = nil
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ObjectSpace.trace_object_allocations do
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line = __LINE__ + 1
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str = "hello world"
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info = ObjectSpace.dump(str)
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end
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assert_dump_object(info, line)
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end
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def test_dump_to_io
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line = nil
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info = IO.pipe do |r, w|
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th = Thread.start {r.read}
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ObjectSpace.trace_object_allocations do
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line = __LINE__ + 1
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str = "hello world"
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ObjectSpace.dump(str, output: w)
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end
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w.close
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th.value
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end
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assert_dump_object(info, line)
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end
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def assert_dump_object(info, line)
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loc = caller_locations(1, 1)[0]
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assert_match /"type":"STRING"/, info
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assert_match /"embedded":true, "bytesize":11, "value":"hello world", "encoding":"UTF-8"/, info
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assert_match /"file":"#{Regexp.escape __FILE__}", "line":#{line}/, info
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assert_match /"method":"#{loc.base_label}"/, info
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end
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def test_dump_special_consts
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# [ruby-core:69692] [Bug #11291]
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assert_equal('null', ObjectSpace.dump(nil))
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assert_equal('true', ObjectSpace.dump(true))
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assert_equal('false', ObjectSpace.dump(false))
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assert_equal('0', ObjectSpace.dump(0))
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assert_equal('{"type":"SYMBOL", "value":"foo"}', ObjectSpace.dump(:foo))
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end
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def test_dump_dynamic_symbol
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dump = ObjectSpace.dump(("foobar%x" % rand(0x10000)).to_sym)
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assert_match /"type":"SYMBOL"/, dump
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assert_match /"value":"foobar\h+"/, dump
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end
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def test_dump_all
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entry = /"bytesize":11, "value":"TEST STRING", "encoding":"UTF-8", "file":"-", "line":4, "method":"dump_my_heap_please", "generation":/
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assert_in_out_err(%w[-robjspace], <<-'end;') do |output, error|
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def dump_my_heap_please
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ObjectSpace.trace_object_allocations_start
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GC.start
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str = "TEST STRING".force_encoding("UTF-8")
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ObjectSpace.dump_all(output: :stdout)
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end
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dump_my_heap_please
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end;
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assert_match(entry, output.grep(/TEST STRING/).join("\n"))
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end
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assert_in_out_err(%w[-robjspace], <<-'end;') do |(output), (error)|
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def dump_my_heap_please
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ObjectSpace.trace_object_allocations_start
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GC.start
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str = "TEST STRING".force_encoding("UTF-8")
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ObjectSpace.dump_all().path
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end
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puts dump_my_heap_please
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end;
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skip if /is not supported/ =~ error
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skip error unless output
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assert_match(entry, File.readlines(output).grep(/TEST STRING/).join("\n"))
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File.unlink(output)
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end
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end
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def test_dump_uninitialized_file
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assert_in_out_err(%[-robjspace], <<-RUBY) do |(output), (error)|
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puts ObjectSpace.dump(File.allocate)
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RUBY
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assert_nil error
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assert_match /"type":"FILE"/, output
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assert_not_match /"fd":/, output
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end
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end
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def traverse_classes klass
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h = {}
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while klass && !h.has_key?(klass)
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h[klass] = true
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klass = ObjectSpace.internal_class_of(klass)
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end
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end
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def test_internal_class_of
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i = 0
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ObjectSpace.each_object{|o|
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traverse_classes ObjectSpace.internal_class_of(o)
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i += 1
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}
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assert_operator i, :>, 0
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end
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def traverse_super_classes klass
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while klass
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klass = ObjectSpace.internal_super_of(klass)
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end
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end
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def all_super_classes klass
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klasses = []
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while klass
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klasses << klass
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klass = ObjectSpace.internal_super_of(klass)
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end
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klasses
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end
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def test_internal_super_of
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klasses = all_super_classes(String)
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String.ancestors.each{|k|
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case k
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when Class
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assert_equal(true, klasses.include?(k), k.inspect)
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when Module
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assert_equal(false, klasses.include?(k), k.inspect) # Internal object (T_ICLASS)
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end
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}
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i = 0
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ObjectSpace.each_object(Module){|o|
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traverse_super_classes ObjectSpace.internal_super_of(o)
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i += 1
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}
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assert_operator i, :>, 0
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end
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def test_count_symbols
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syms = (1..128).map{|i| ("xyzzy#{i}" * 128).to_sym}
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c = Class.new{define_method(syms[-1]){}}
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h = ObjectSpace.count_symbols
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assert_operator h[:mortal_dynamic_symbol], :>=, 128, h.inspect
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assert_operator h[:immortal_dynamic_symbol], :>=, 1, h.inspect
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assert_operator h[:immortal_static_symbol], :>=, Object.methods.size, h.inspect
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assert_equal h[:immortal_symbol], h[:immortal_dynamic_symbol] + h[:immortal_static_symbol], h.inspect
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end
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end
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