83 lines
2.7 KiB
Ruby
83 lines
2.7 KiB
Ruby
# frozen_string_literal: false
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require 'test/unit'
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require 'tmpdir'
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class TestStack < Test::Unit::TestCase
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LARGE_VM_STACK_SIZE = 1024*1024*5
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LARGE_MACHINE_STACK_SIZE = 1024*1024*10
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def initialize(*)
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super
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@h_default = nil
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@h_0 = nil
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@h_large = nil
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end
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def invoke_ruby script, vm_stack_size: nil, machine_stack_size: nil
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env = {}
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env['RUBY_FIBER_VM_STACK_SIZE'] = vm_stack_size.to_s if vm_stack_size
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env['RUBY_FIBER_MACHINE_STACK_SIZE'] = machine_stack_size.to_s if machine_stack_size
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env['ASAN_OPTIONS'] = ENV['ASAN_OPTIONS'] if ENV['ASAN_OPTIONS']
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stdout, stderr, status = EnvUtil.invoke_ruby([env, '-e', script], '', true, true, timeout: 30)
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assert(!status.signaled?, FailDesc[status, nil, stderr])
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return stdout
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end
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def h_default
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@h_default ||= eval(invoke_ruby('p RubyVM::DEFAULT_PARAMS'))
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end
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def h_0
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@h_0 ||= eval(invoke_ruby('p RubyVM::DEFAULT_PARAMS',
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vm_stack_size: 0,
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machine_stack_size: 0
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))
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end
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def h_large
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@h_large ||= eval(invoke_ruby('p RubyVM::DEFAULT_PARAMS',
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vm_stack_size: LARGE_VM_STACK_SIZE,
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machine_stack_size: LARGE_MACHINE_STACK_SIZE
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))
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end
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def test_relative_stack_sizes
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assert_operator(h_default[:fiber_vm_stack_size], :>, h_0[:fiber_vm_stack_size])
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assert_operator(h_default[:fiber_vm_stack_size], :<, h_large[:fiber_vm_stack_size])
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assert_operator(h_default[:fiber_machine_stack_size], :>=, h_0[:fiber_machine_stack_size])
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assert_operator(h_default[:fiber_machine_stack_size], :<=, h_large[:fiber_machine_stack_size])
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end
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def test_vm_stack_size
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script = '$stdout.sync=true; def rec; print "."; rec; end; Fiber.new{rec}.resume'
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size_default = invoke_ruby(script).bytesize
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assert_operator(size_default, :>, 0)
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size_0 = invoke_ruby(script, vm_stack_size: 0).bytesize
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assert_operator(size_default, :>, size_0)
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size_large = invoke_ruby(script, vm_stack_size: LARGE_VM_STACK_SIZE).bytesize
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assert_operator(size_default, :<, size_large)
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end
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# Depending on OS, machine stack size may not change size.
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def test_machine_stack_size
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return if /mswin|mingw/ =~ RUBY_PLATFORM
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script = '$stdout.sync=true; def rec; print "."; 1.times{1.times{1.times{rec}}}; end; Fiber.new{rec}.resume'
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vm_stack_size = 1024 * 1024
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size_default = invoke_ruby(script, vm_stack_size: vm_stack_size).bytesize
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size_0 = invoke_ruby(script, vm_stack_size: vm_stack_size, machine_stack_size: 0).bytesize
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assert_operator(size_default, :>=, size_0)
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size_large = invoke_ruby(script, vm_stack_size: vm_stack_size, machine_stack_size: LARGE_MACHINE_STACK_SIZE).bytesize
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assert_operator(size_default, :<=, size_large)
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end
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end
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