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require 'test/unit'
require_relative "envutil"
class TestGc < Test::Unit::TestCase
class S
def initialize(a)
@a = a
end
end
def test_gc
prev_stress = GC.stress
GC.stress = false
assert_nothing_raised do
1.upto(10000) {
tmp = [0,1,2,3,4,5,6,7,8,9]
}
tmp = nil
end
l=nil
100000.times {
l = S.new(l)
}
GC.start
assert true # reach here or dumps core
l = []
100000.times {
l.push([l])
}
GC.start
assert true # reach here or dumps core
GC.stress = prev_stress
end
def test_enable_disable
GC.enable
assert_equal(false, GC.enable)
assert_equal(false, GC.disable)
assert_equal(true, GC.disable)
assert_equal(true, GC.disable)
assert_nil(GC.start)
assert_equal(true, GC.enable)
assert_equal(false, GC.enable)
ensure
GC.enable
end
def test_count
c = GC.count
GC.start
assert_operator(c, :<, GC.count)
end
def test_stat
res = GC.stat
assert_equal(false, res.empty?)
assert_kind_of(Integer, res[:count])
arg = Hash.new
res = GC.stat(arg)
assert_equal(arg, res)
assert_equal(false, res.empty?)
assert_kind_of(Integer, res[:count])
end
def test_singleton_method
prev_stress = GC.stress
assert_nothing_raised("[ruby-dev:42832]") do
GC.stress = true
10.times do
obj = Object.new
def obj.foo() end
def obj.bar() raise "obj.foo is called, but this is obj.bar" end
obj.foo
end
end
ensure
GC.stress = prev_stress
end
def test_gc_parameter
env = {
"RUBY_GC_MALLOC_LIMIT" => "60000000",
"RUBY_HEAP_MIN_SLOTS" => "100000"
}
assert_normal_exit("exit", "[ruby-core:39777]", :child_env => env)
env = {
"RUBYOPT" => "",
"RUBY_HEAP_MIN_SLOTS" => "100000"
}
assert_in_out_err([env, "-e", "exit"], "", [], [], "[ruby-core:39795]")
assert_in_out_err([env, "-W0", "-e", "exit"], "", [], [], "[ruby-core:39795]")
assert_in_out_err([env, "-W1", "-e", "exit"], "", [], [], "[ruby-core:39795]")
assert_in_out_err([env, "-w", "-e", "exit"], "", [], /heap_min_slots=100000/, "[ruby-core:39795]")
end
def test_profiler_enabled
GC::Profiler.enable
assert_equal(true, GC::Profiler.enabled?)
GC::Profiler.disable
assert_equal(false, GC::Profiler.enabled?)
ensure
GC::Profiler.disable
end
def test_finalizing_main_thread
assert_in_out_err(%w[--disable-gems], <<-EOS, ["\"finalize\""], [], "[ruby-dev:46647]")
ObjectSpace.define_finalizer(Thread.main) { p 'finalize' }
EOS
end
end
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