Replace all GC.disable with EnvUtil.without_gc

Merged: https://github.com/ruby/ruby/pull/11635

test/objspace/test_objspace.rb

@@ -244,7 +244,7 @@ class TestObjSpace < Test::Unit::TestCase
 
   def test_trace_object_allocations_start_stop_clear
     ObjectSpace.trace_object_allocations_clear # clear object_table to get rid of erroneous detection for obj3
-    GC.disable # suppress potential object reuse. see [Bug #11271]
+    EnvUtil.without_gc do # suppress potential object reuse. see [Bug #11271]
       begin
         ObjectSpace.trace_object_allocations_start
         begin
@@ -275,8 +275,7 @@ class TestObjSpace < Test::Unit::TestCase
       assert_equal(nil, ObjectSpace.allocation_sourcefile(obj1))
       assert_equal(nil, ObjectSpace.allocation_sourcefile(obj2))
       assert_equal(nil, ObjectSpace.allocation_sourcefile(obj3))
-  ensure
-    GC.enable
+    end
   end
 
   def test_trace_object_allocations_gc_stress

test/ruby/test_gc.rb

@@ -40,6 +40,7 @@ class TestGc < Test::Unit::TestCase
   end
 
   def test_enable_disable
+    EnvUtil.without_gc do
       GC.enable
       assert_equal(false, GC.enable)
       assert_equal(false, GC.disable)
@@ -48,8 +49,7 @@ class TestGc < Test::Unit::TestCase
       assert_nil(GC.start)
       assert_equal(true, GC.enable)
       assert_equal(false, GC.enable)
-  ensure
-    GC.enable
+    end
   end
 
   def test_gc_config_full_mark_by_default
@@ -227,12 +227,9 @@ class TestGc < Test::Unit::TestCase
     GC.stat(stat)
 
     GC::INTERNAL_CONSTANTS[:SIZE_POOL_COUNT].times do |i|
-      begin
-        reenable_gc = !GC.disable
+      EnvUtil.without_gc do
         GC.stat_heap(i, stat_heap)
         GC.stat(stat)
-      ensure
-        GC.enable if reenable_gc
       end
 
       assert_equal (GC::INTERNAL_CONSTANTS[:BASE_SLOT_SIZE] + GC::INTERNAL_CONSTANTS[:RVALUE_OVERHEAD]) * (2**i), stat_heap[:slot_size]
@@ -768,23 +765,17 @@ class TestGc < Test::Unit::TestCase
   end
 
   def test_gc_disabled_start
-    begin
-      disabled = GC.disable
+    EnvUtil.without_gc do
       c = GC.count
       GC.start
       assert_equal 1, GC.count - c
-    ensure
-      GC.enable unless disabled
     end
 
-    begin
-      disabled = GC.disable
+    EnvUtil.without_gc do
       c = GC.count
       GC.start(immediate_mark: false, immediate_sweep: false)
       10_000.times { Object.new }
       assert_equal 1, GC.count - c
-    ensure
-      GC.enable unless disabled
     end
   end
 
@@ -859,8 +850,7 @@ class TestGc < Test::Unit::TestCase
   end
 
   def test_old_to_young_reference
-    original_gc_disabled = GC.disable
-
+    EnvUtil.without_gc do
       require "objspace"
 
       old_obj = Object.new
@@ -880,7 +870,6 @@ class TestGc < Test::Unit::TestCase
       # Takes 4 GC to promote to old generation
       GC.start
       assert_include ObjectSpace.dump(young_obj), '"old":true'
-  ensure
-    GC.enable if !original_gc_disabled
+    end
   end
 end

test/ruby/test_objectspace.rb

@@ -191,7 +191,7 @@ End
   end
 
   def test_finalizer_thread_raise
-    GC.disable
+    EnvUtil.without_gc do
       fzer = proc do |id|
         sleep 0.2
       end
@@ -213,8 +213,7 @@ End
         assert(false)
       rescue my_error
       end
-  ensure
-    GC.enable
+    end
   end
 
   def test_each_object

test/ruby/test_sleep.rb

@@ -4,14 +4,13 @@ require 'etc'
 
 class TestSleep < Test::Unit::TestCase
   def test_sleep_5sec
-    GC.disable
+    EnvUtil.without_gc do
       start = Process.clock_gettime(Process::CLOCK_MONOTONIC)
       sleep 5
       slept = Process.clock_gettime(Process::CLOCK_MONOTONIC) - start
       bottom = 5.0
       assert_operator(slept, :>=, bottom)
       assert_operator(slept, :<=, 6.0, "[ruby-core:18015]: longer than expected")
-  ensure
-    GC.enable
+    end
   end
 end

test/ruby/test_string_memory.rb

@@ -6,8 +6,8 @@ class TestStringMemory < Test::Unit::TestCase
   def capture_allocations(klass)
     allocations = []
 
+    EnvUtil.without_gc do
       GC.start
-    GC.disable
       generation = GC.count
 
       ObjectSpace.trace_object_allocations do
@@ -30,8 +30,7 @@ class TestStringMemory < Test::Unit::TestCase
         # (the parallel testing framework may create strings in a separate thread)
         path == __FILE__
       end
-  ensure
-    GC.enable
+    end
   end
 
   def test_byteslice_prefix