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-rw-r--r--test/ruby/test_weakmap.rb102
1 files changed, 101 insertions, 1 deletions
diff --git a/test/ruby/test_weakmap.rb b/test/ruby/test_weakmap.rb
index 3b9eef770a..97d7197dbb 100644
--- a/test/ruby/test_weakmap.rb
+++ b/test/ruby/test_weakmap.rb
@@ -59,7 +59,7 @@ class TestWeakMap < Test::Unit::TestCase
assert_weak_include(m, k)
end
GC.start
- skip('TODO: failure introduced from r60440')
+ pend('TODO: failure introduced from 837fd5e494731d7d44786f29e7d6e8c27029806f')
assert_not_send([@wm, m, k])
end
alias test_member? test_include?
@@ -73,6 +73,31 @@ class TestWeakMap < Test::Unit::TestCase
@wm.inspect)
end
+ def test_inspect_garbage
+ 1000.times do |i|
+ @wm[i] = Object.new
+ @wm.inspect
+ end
+ assert_match(/\A\#<#{@wm.class.name}:[^:]++:(?:\s\d+\s=>\s\#<(?:Object|collected):[^:<>]*+>(?:,|>\z))+/,
+ @wm.inspect)
+ end
+
+ def test_delete
+ k1 = "foo"
+ x1 = Object.new
+ @wm[k1] = x1
+ assert_equal x1, @wm[k1]
+ assert_equal x1, @wm.delete(k1)
+ assert_nil @wm[k1]
+ assert_nil @wm.delete(k1)
+
+ fallback = @wm.delete(k1) do |key|
+ assert_equal k1, key
+ 42
+ end
+ assert_equal 42, fallback
+ end
+
def test_each
m = __callee__[/test_(.*)/, 1]
x1 = Object.new
@@ -158,4 +183,79 @@ class TestWeakMap < Test::Unit::TestCase
assert_nothing_raised(FrozenError) {@wm[o] = 'foo'}
assert_nothing_raised(FrozenError) {@wm['foo'] = o}
end
+
+ def test_no_memory_leak
+ assert_no_memory_leak([], '', "#{<<~"begin;"}\n#{<<~'end;'}", "[Bug #19398]", rss: true, limit: 1.5, timeout: 60)
+ begin;
+ 1_000_000.times do
+ ObjectSpace::WeakMap.new
+ end
+ end;
+ end
+
+ def test_compaction
+ omit "compaction is not supported on this platform" unless GC.respond_to?(:compact)
+
+ # [Bug #19529]
+ obj = Object.new
+ 100.times do |i|
+ GC.compact
+ @wm[i] = obj
+ end
+
+ assert_separately([], <<-'end;')
+ wm = ObjectSpace::WeakMap.new
+ obj = Object.new
+ 100.times do
+ wm[Object.new] = obj
+ GC.start
+ end
+ GC.compact
+ end;
+
+ assert_separately(%w(-robjspace), <<-'end;')
+ wm = ObjectSpace::WeakMap.new
+ key = Object.new
+ val = Object.new
+ wm[key] = val
+
+ GC.verify_compaction_references(expand_heap: true, toward: :empty)
+
+ assert_equal(val, wm[key])
+ end;
+
+ assert_separately(["-W0"], <<-'end;')
+ wm = ObjectSpace::WeakMap.new
+
+ ary = 10_000.times.map do
+ o = Object.new
+ wm[o] = 1
+ o
+ end
+
+ GC.verify_compaction_references(expand_heap: true, toward: :empty)
+ end;
+ end
+
+ def test_gc_compact_stress
+ omit "compaction doesn't work well on s390x" if RUBY_PLATFORM =~ /s390x/ # https://github.com/ruby/ruby/pull/5077
+ EnvUtil.under_gc_compact_stress { ObjectSpace::WeakMap.new }
+ end
+
+ def test_replaced_values_bug_19531
+ a = "A".dup
+ b = "B".dup
+
+ @wm[1] = a
+ @wm[1] = a
+ @wm[1] = a
+
+ @wm[1] = b
+ assert_equal b, @wm[1]
+
+ a = nil
+ GC.start
+
+ assert_equal b, @wm[1]
+ end
end