From b0bbcaedc7c855be1df8c3bbbfd7b80424905047 Mon Sep 17 00:00:00 2001
From: Peter Zhu <peter@peterzhu.ca>
Date: Thu, 25 Nov 2021 11:00:38 -0500
Subject: Revert "Add GC.stat_size_pool to get stats for a size pool"

This reverts commit 6157619bb68e4307cdf065cb73d5bfcec30d042d.

We'll wait for comments in the open ticket: https://bugs.ruby-lang.org/issues/18364
---
 test/ruby/test_gc.rb | 48 ------------------------------------------------
 1 file changed, 48 deletions(-)

(limited to 'test/ruby')

diff --git a/test/ruby/test_gc.rb b/test/ruby/test_gc.rb
index 1cb030e76a..baf9971c48 100644
--- a/test/ruby/test_gc.rb
+++ b/test/ruby/test_gc.rb
@@ -139,54 +139,6 @@ class TestGc < Test::Unit::TestCase
     end
   end
 
-  def test_stat_size_pool
-    skip 'stress' if GC.stress
-
-    stat_size_pool = {}
-    stat = {}
-    # Initialize to prevent GC in future calls
-    GC.stat_size_pool(0, stat_size_pool)
-    GC.stat(stat)
-
-    GC::INTERNAL_CONSTANTS[:SIZE_POOL_COUNT].times do |i|
-      GC.stat_size_pool(i, stat_size_pool)
-      GC.stat(stat)
-
-      assert_equal GC::INTERNAL_CONSTANTS[:RVALUE_SIZE] * (2**i), stat_size_pool[:slot_size]
-      assert_operator stat_size_pool[:heap_allocatable_pages], :<=, stat[:heap_allocatable_pages]
-      assert_operator stat_size_pool[:heap_eden_pages], :<=, stat[:heap_eden_pages]
-      assert_operator stat_size_pool[:heap_eden_slots], :>=, 0
-      assert_operator stat_size_pool[:heap_tomb_pages], :<=, stat[:heap_tomb_pages]
-      assert_operator stat_size_pool[:heap_tomb_slots], :>=, 0
-    end
-
-    assert_raise(ArgumentError) { GC.stat_size_pool(-1) }
-    assert_raise(ArgumentError) { GC.stat_size_pool(GC::INTERNAL_CONSTANTS[:SIZE_POOL_COUNT]) }
-  end
-
-  def test_stat_size_pool_constraints
-    skip 'stress' if GC.stress
-
-    stat = GC.stat
-    stat_size_pools = []
-    # Initialize to prevent GC in future calls
-    GC::INTERNAL_CONSTANTS[:SIZE_POOL_COUNT].times do |i|
-      stat_size_pools << GC.stat_size_pool(i)
-    end
-    # Get actual stats
-    GC.stat(stat)
-    GC::INTERNAL_CONSTANTS[:SIZE_POOL_COUNT].times do |i|
-      GC.stat_size_pool(i, stat_size_pools[i])
-    end
-
-    stat_size_pools_sum = stat_size_pools[0].keys.to_h { |k| [k, stat_size_pools.sum { |e| e[k] }] }
-
-    assert_equal stat[:heap_allocatable_pages], stat_size_pools_sum[:heap_allocatable_pages]
-    assert_equal stat[:heap_eden_pages], stat_size_pools_sum[:heap_eden_pages]
-    assert_equal stat[:heap_tomb_pages], stat_size_pools_sum[:heap_tomb_pages]
-    assert_equal stat[:heap_available_slots], stat_size_pools_sum[:heap_eden_slots] + stat_size_pools_sum[:heap_tomb_slots]
-  end
-
   def test_latest_gc_info
     skip 'stress' if GC.stress
 
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