diff --git a/tests/timeit/21.weakref.01.py b/tests/timeit/21.weakref.01.py
new file mode 100755
index 00000000..4eb4b1e5
--- /dev/null
+++ b/tests/timeit/21.weakref.01.py
@@ -0,0 +1,68 @@
+#!/usr/bin/env python3
+
+# MIT License
+#
+# Copyright (c) 2023 Eugenio Parodi <ceccopierangiolieugenio AT googlemail DOT com>
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
+import sys, os, weakref
+
+import timeit
+from threading import Lock
+
+class Foo():
+    def a(self,v):
+        return v+v*v
+
+f1 = Foo()
+f21 = Foo()
+f22 = Foo()
+
+a1  = f1.a
+a21 = weakref.WeakMethod(f21.a)
+a22 = weakref.WeakMethod(f22.a)
+a31 = weakref.ref(_a31:=f21.a)
+a32 = weakref.ref(_a32:=f22.a)
+
+del f22,_a32
+
+def test1(v=a1,ff=f1):    return sum([  v(x)                     for x in range(100)])
+
+def test2(v=a21,ff=f21):  return sum([v()(x) if      v()  else 0 for x in range(100)])
+def test3(v=a22,ff=f21):  return sum([v()(x) if      v()  else 0 for x in range(100)])
+def test4(v=a21,ff=f21):  return sum([ _v(x) if (_v:=v()) else 0 for x in range(100)])
+def test5(v=a22,ff=f21):  return sum([ _v(x) if (_v:=v()) else 0 for x in range(100)])
+
+def test6(v=a31,ff=f21):  return sum([v()(x) if      v()  else 0 for x in range(100)])
+def test7(v=a32,ff=f21):  return sum([v()(x) if      v()  else 0 for x in range(100)])
+def test8(v=a31,ff=f21):  return sum([ _v(x) if (_v:=v()) else 0 for x in range(100)])
+def test9(v=a32,ff=f21):  return sum([ _v(x) if (_v:=v()) else 0 for x in range(100)])
+
+loop = 10000
+
+a = {}
+
+iii = 1
+while (testName := f'test{iii}') and (testName in globals()):
+    result = timeit.timeit(f'{testName}(*a)', globals=globals(), number=loop)
+    # print(f"test{iii}) fps {loop / result :.3f} - s {result / loop:.10f} - {result / loop} {globals()[testName](*a)}")
+    print(f"test{iii:02}) | {result / loop:.10f} sec. | {loop / result : 15.3f} Fps ╞╡-> {globals()[testName](*a)}")
+    iii+=1
+
diff --git a/tests/timeit/22.queue.01.py b/tests/timeit/22.queue.01.py
new file mode 100755
index 00000000..0406005c
--- /dev/null
+++ b/tests/timeit/22.queue.01.py
@@ -0,0 +1,84 @@
+#!/usr/bin/env python3
+
+# MIT License
+#
+# Copyright (c) 2023 Eugenio Parodi <ceccopierangiolieugenio AT googlemail DOT com>
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
+import sys, os, weakref
+
+import timeit
+from queue import Queue
+
+qu = Queue()
+r = 100
+
+def test1(q=qu):
+    ret = 0
+    for i in range(r):
+        ret += i
+    return ret
+
+def test2(q=qu):
+    ret = 0
+    for i in range(r):
+        qu.put(i)
+    while x := q.get():
+        ret += x
+    return ret
+
+def test3(q=qu):
+    ret = 0
+    ar = []
+    for i in range(r):
+        ar.append(i)
+    for x in ar:
+        ret += x
+    return ret
+
+def test4(q=qu):
+    return sum(i for i in range(r))
+
+def test5(q=qu):
+    ar = []
+    for i in range(r):
+        ar.append(i)
+    return sum(ar)
+
+def test6(q=qu):
+    ret = 0
+    ar = []
+    for i in range(r):
+        ar.append(i)
+    while ar:
+        ret += ar.pop()
+    return ret
+
+loop = 1000
+
+a = {}
+
+iii = 1
+while (testName := f'test{iii}') and (testName in globals()):
+    result = timeit.timeit(f'{testName}(*a)', globals=globals(), number=loop)
+    # print(f"test{iii}) fps {loop / result :.3f} - s {result / loop:.10f} - {result / loop} {globals()[testName](*a)}")
+    print(f"test{iii:02}) | {result / loop:.10f} sec. | {loop / result : 15.3f} Fps ╞╡-> {globals()[testName](*a)}")
+    iii+=1
+
diff --git a/tests/test.generic.006.weakref.01.py b/tests/weakref/test.01.py
similarity index 100%
rename from tests/test.generic.006.weakref.01.py
rename to tests/weakref/test.01.py
diff --git a/tests/test.generic.006.weakref.02.py b/tests/weakref/test.02.py
similarity index 100%
rename from tests/test.generic.006.weakref.02.py
rename to tests/weakref/test.02.py
diff --git a/tests/test.generic.006.weakref.03.py b/tests/weakref/test.03.py
similarity index 100%
rename from tests/test.generic.006.weakref.03.py
rename to tests/weakref/test.03.py
diff --git a/tests/weakref/test.04.gc.01.py b/tests/weakref/test.04.gc.01.py
new file mode 100755
index 00000000..d41e6883
--- /dev/null
+++ b/tests/weakref/test.04.gc.01.py
@@ -0,0 +1,116 @@
+#!/usr/bin/env python3
+
+# MIT License
+#
+# Copyright (c) 2023 Eugenio Parodi <ceccopierangiolieugenio AT googlemail DOT com>
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
+# Example inspired by
+# https://stackoverflow.com/questions/39838793/python-object-is-being-referenced-by-an-object-i-cannot-find
+
+import gc, weakref
+
+class Foo(object):
+    __slots__ = ('a','b')
+    def __init__(self, a=1234) -> None:
+        self.a = a
+        self.b = lambda : self.a
+
+    def f(self):
+        return self.a
+
+    # def __del__(self):
+    #     print(f"Deleted {self}")
+
+def pobjs():
+    for i,o in enumerate(gc.get_objects()[-100:]):
+        ss = str(o)
+        if "Foo" in ss:
+            print(f" * {i} - {ss}")
+
+v1 = {'b':2345}
+
+print(f"\nStart {gc.isenabled()=}")
+# print(f"{gc.set_debug(gc.DEBUG_LEAK)=}")
+
+print("\n############# Phase 1 ##################")
+foo = Foo(v1)
+print(f"{gc.get_referents(foo)=}")
+print(f"{gc.get_count()=}")
+print(f"{foo.a=} - {foo.b=} - {foo.f()=}")
+del foo
+print(f"{gc.collect()=}")
+
+print("\n############# Phase 2 ##################")
+foo = Foo(v1)
+bar = foo.a
+print(f"{gc.get_referents(foo)=}")
+print(f"{gc.get_count()=}")
+print(f"{foo.a=} - {foo.b=} - {foo.f()=} - {bar=}")
+del foo
+print(f"{gc.collect()=}")
+print(f"{bar=}")
+
+print("\n############# Phase 3 ##################")
+foo = Foo(v1)
+bar = foo.b
+print(f"{gc.get_referents(foo)=}")
+print(f"{gc.get_count()=}")
+print(f"{foo.a=} - {foo.b=} - {foo.f()=} - {bar()=}")
+del foo
+print(f"{gc.collect()=}")
+print(f"{bar()=}")
+
+print("\n############# Phase 4 ##################")
+foo = Foo(v1)
+bar = foo.b
+print(f"{gc.get_referents(foo)=}")
+print(f"{gc.get_referents(v1)=}")
+print(f"{gc.get_count()=}")
+print(f"{foo.a=} - {foo.b=} - {foo.f()=} - {bar()=}")
+del foo
+pobjs()
+print(f"{gc.collect()=}")
+print(f"{bar()=}")
+del bar
+pobjs()
+print(f"{gc.collect()=}")
+pobjs()
+
+print("\n############# Phase 5 ##################")
+foo = Foo(v1)
+bar = weakref.ref(foo.b)
+xx = foo.f
+baz = weakref.ref(xx)
+print(f"{gc.get_referents(foo)=}")
+print(f"{gc.get_referents(v1)=}")
+print(f"{gc.get_count()=}")
+print(f"{foo.a=} - {foo.b=} - {foo.f()=} - {bar()()=}")
+del foo
+pobjs()
+print(f"{gc.collect()=}")
+print(f"{bar()() if bar() else None=}")
+del bar
+pobjs()
+print(f"{gc.collect()=}")
+pobjs()
+
+print(f"{gc.garbage=}")
+print(f"End {gc.get_count()=}")
diff --git a/tests/weakref/test.04.gc.02.py b/tests/weakref/test.04.gc.02.py
new file mode 100755
index 00000000..9131f429
--- /dev/null
+++ b/tests/weakref/test.04.gc.02.py
@@ -0,0 +1,88 @@
+#!/usr/bin/env python3
+
+# MIT License
+#
+# Copyright (c) 2023 Eugenio Parodi <ceccopierangiolieugenio AT googlemail DOT com>
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
+# Example inspired by
+# https://stackoverflow.com/questions/39838793/python-object-is-being-referenced-by-an-object-i-cannot-find
+
+import gc, weakref, time
+
+class Foo():
+    __slots__ = ('__weakref__','a','b')
+    def __init__(self, a=1234) -> None:
+        self.a = a
+        self.b = lambda : self.a
+
+    def f(self):
+        return self.a
+
+    # def __del__(self):
+    #     print(f"Deleted {self}")
+
+def pobjs():
+    for i,o in enumerate(gc.get_objects()[-100:]):
+        ss = str(o)
+        if "Foo" in ss:
+            print(f" * {i} - {ss}")
+
+v1 = {'b':2345}
+
+print(f"\nStart {gc.isenabled()=}")
+# print(f"{gc.set_debug(gc.DEBUG_LEAK)=}")
+
+def _gccb(phase,info):
+    print(f" ---> {gc.garbage=}")
+    print(f" ---> {phase=} {info=}")
+
+# gc.callbacks.append(_gccb)
+
+print("\n############# Phase 1 ##################")
+foo = Foo(v1)
+bar =foo.b
+
+wrfoo = weakref.ref(foo)
+wrbar = weakref.ref(bar)
+wrf   = weakref.WeakMethod(foo.f)
+
+# print(f"{gc.get_referents(foo)=}")
+# print(f"{gc.get_referrers(foo)=}")
+# print(f"{gc.get_referents(v1)=}")
+# print(f"{gc.get_referrers(v1)=}")
+# print(f"{gc.get_count()=}")
+print(f"{foo.a=} - {foo.b=} - {foo.f()=} - {bar()=}")
+print(f"{wrfoo()=} {wrbar()=} {wrf()=}")
+del foo
+print(f"{gc.collect()=}")
+print(f"{bar()}")
+# print(f"{gc.get_referents(v1)=}")
+# print(f"{gc.get_referrers(v1)=}")
+print(f"{wrfoo()=} {wrbar()=} {wrf()=}")
+bar = None
+print(f"{wrfoo()=} {wrbar()=} {wrf()=}")
+time.sleep(4)
+print(f"{wrfoo()=} {wrbar()=} {wrf()=}")
+print(f"{gc.collect()=}")
+print(f"{wrfoo()=} {wrbar()=} {wrf()=}")
+
+print(f"{gc.garbage=}")
+print(f"End {gc.get_count()=}")
diff --git a/tests/weakref/test.04.gc.03.py b/tests/weakref/test.04.gc.03.py
new file mode 100755
index 00000000..e678cb66
--- /dev/null
+++ b/tests/weakref/test.04.gc.03.py
@@ -0,0 +1,105 @@
+#!/usr/bin/env python3
+
+# MIT License
+#
+# Copyright (c) 2023 Eugenio Parodi <ceccopierangiolieugenio AT googlemail DOT com>
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
+# Example inspired by
+# https://stackoverflow.com/questions/39838793/python-object-is-being-referenced-by-an-object-i-cannot-find
+
+import gc, weakref, time
+
+class Bar():
+    __slots__ = ('_foo')
+    def __init__(self, foo) -> None:
+        self._foo = foo
+
+class Foo():
+    __slots__ = ('__weakref__','a','b','_bar')
+    def __init__(self, a=1234) -> None:
+        self._bar = Bar(self)
+        self.a = a
+        self.b = lambda : self.a
+
+    def f(self):
+        return self.a
+
+    # def __del__(self):
+    #     print(f"Deleted {self}")
+
+def pobjs():
+    for i,o in enumerate(gc.get_objects()[-100:]):
+        ss = str(o)
+        if "Foo" in ss:
+            print(f" * {i} - {ss}")
+
+def _ref(o):
+    print(f"\n### -> Referents - {o}")
+    for i,r in enumerate(gc.get_referents(o)):
+        print(f" - {i} ) {r}")
+    print(f"\n### -> Referrers - {o}")
+    for i,r in enumerate(gc.get_referrers(o)):
+        print(f" - {i} ) {r}")
+    print("")
+
+v1 = {'b':2345}
+
+print(f"\nStart {gc.isenabled()=}")
+# print(f"{gc.set_debug(gc.DEBUG_LEAK)=}")
+
+def _gccb(phase,info):
+    print(f" ---> {gc.garbage=}")
+    print(f" ---> {phase=} {info=}")
+
+# gc.callbacks.append(_gccb)
+
+print("\n############# Phase 1 ##################")
+foo = Foo(v1)
+bar =foo.b
+
+wrfoo = weakref.ref(foo)
+wrbar = weakref.ref(bar)
+wrf   = weakref.WeakMethod(foo.f)
+
+# print(f"{gc.get_referents(foo)=}")
+# print(f"{gc.get_referrers(foo)=}")
+# print(f"{gc.get_referents(v1)=}")
+# print(f"{gc.get_referrers(v1)=}")
+# print(f"{gc.get_count()=}")
+_ref(foo)
+
+print(f"{foo.a=} - {foo.b=} - {foo.f()=} - {bar()=}")
+print(f"{wrfoo()=} {wrbar()=} {wrf()=}")
+del foo
+print(f"{gc.collect()=}")
+print(f"{bar()}")
+# print(f"{gc.get_referents(v1)=}")
+# print(f"{gc.get_referrers(v1)=}")
+print(f"{wrfoo()=} {wrbar()=} {wrf()=}")
+bar = None
+print(f"{wrfoo()=} {wrbar()=} {wrf()=}")
+time.sleep(4)
+print(f"{wrfoo()=} {wrbar()=} {wrf()=}")
+print(f"{gc.collect()=}")
+print(f"{wrfoo()=} {wrbar()=} {wrf()=}")
+
+print(f"{gc.garbage=}")
+print(f"End {gc.get_count()=}")
diff --git a/tests/weakref/test.05.TermTk.01.py b/tests/weakref/test.05.TermTk.01.py
new file mode 100755
index 00000000..775c20ae
--- /dev/null
+++ b/tests/weakref/test.05.TermTk.01.py
@@ -0,0 +1,92 @@
+#!/usr/bin/env python3
+
+# MIT License
+#
+# Copyright (c) 2023 Eugenio Parodi <ceccopierangiolieugenio AT googlemail DOT com>
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
+import sys, os
+import gc, weakref, time
+
+sys.path.append(os.path.join(sys.path[0],'../..'))
+sys.path.append(os.path.join(sys.path[0],'.'))
+import TermTk as ttk
+
+def pobjs():
+    for i,o in enumerate(gc.get_objects()[-100:]):
+        ss = str(o)
+        if "Foo" in ss:
+            print(f" * {i} - {ss}")
+
+print(f"\nStart {gc.isenabled()=}")
+
+def _gccb(phase,info):
+    print(f" ---> {gc.garbage=}")
+    print(f" ---> {phase=} {info=}")
+# gc.callbacks.append(_gccb)
+
+def _ref(o):
+    print(f"\n### -> Referents - {o}")
+    for i,r in enumerate(gc.get_referents(o)):
+        print(f" - {i} ) {r}")
+    print(f"\n### -> Referrers - {o}")
+    for i,r in enumerate(gc.get_referrers(o)):
+        print(f" - {i} ) {r}")
+        for ii,rr in enumerate(gc.get_referrers(r)):
+            print(f"   | {ii} ) {rr}")
+        print("")
+    print("")
+
+print("\n############# Phase 1 ##################")
+# wid = ttk.TTkWidget()
+# wid = ttk.TTkButton()
+# wid = ttk.TTkLabel()
+# wid = ttk.TTkGraph()
+# wid = ttk.TTkSpacer()
+# wid = ttk.TTkSplitter()
+# wid = ttk.TTkCanvas()
+# sizef = wid.size
+sizef = []
+
+ttk.TTkHelper._updateWidget = set()
+ttk.TTkHelper._updateBuffer = set()
+
+wrwid    = weakref.ref(wid)
+# wrsizef  = weakref.ref(sizef)
+wrsizef  = wrwid
+# wrsizef2 = weakref.WeakMethod(wid.size)
+wrsizef2 = wrwid
+
+_ref(wid)
+
+print(f"{wrwid()=} {wrsizef()=} {wrsizef2()=}")
+del wid
+print(f"{gc.collect()=}")
+# print(f"{sizef()}")
+print(f"{wrwid()=} {wrsizef()=} {wrsizef2()=}")
+sizef = None
+print(f"{wrwid()=} {wrsizef()=} {wrsizef2()=}")
+# time.sleep(4)
+# print(f"{wrwid()=} {wrsizef()=} {wrsizef2()=}")
+print(f"{gc.collect()=}")
+print(f"{wrwid()=} {wrsizef()=} {wrsizef2()=}")
+
+print(f"{gc.garbage=}")
+print(f"End {gc.get_count()=}")
diff --git a/tests/weakref/test.05.TermTk.02.py b/tests/weakref/test.05.TermTk.02.py
new file mode 100755
index 00000000..e12812ad
--- /dev/null
+++ b/tests/weakref/test.05.TermTk.02.py
@@ -0,0 +1,105 @@
+#!/usr/bin/env python3
+
+# MIT License
+#
+# Copyright (c) 2023 Eugenio Parodi <ceccopierangiolieugenio AT googlemail DOT com>
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
+import sys, os
+import gc, weakref, time
+
+sys.path.append(os.path.join(sys.path[0],'../..'))
+sys.path.append(os.path.join(sys.path[0],'.'))
+import TermTk as ttk
+
+def pobjs():
+    for i,o in enumerate(gc.get_objects()[-100:]):
+        ss = str(o)
+        if "Foo" in ss:
+            print(f" * {i} - {ss}")
+
+print(f"\nStart {gc.isenabled()=}")
+
+def _gccb(phase,info):
+    print(f" ---> {gc.garbage=}")
+    print(f" ---> {phase=} {info=}")
+# gc.callbacks.append(_gccb)
+
+def _ref(o):
+    print(f"\n### -> Referents - {o}")
+    for i,r in enumerate(gc.get_referents(o)):
+        print(f" - {i} ) {r}")
+    print(f"\n### -> Referrers - {o}")
+    for i,r in enumerate(gc.get_referrers(o)):
+        print(f" - {i} ) {r}")
+        for ii,rr in enumerate(gc.get_referrers(r)):
+            print(f"   | {ii} ) {rr}")
+        print("")
+    print("")
+
+
+class TestWid(ttk.TTkWidget):
+    __slots__ = ('_a','_b')
+    def __init__(self, *args, **kwargs):
+        self.setDefaultSize(kwargs, 10, 10)
+        super().__init__(*args, **kwargs)
+        self._b = ttk.pyTTkSignal(bool)
+        self.setFocusPolicy(ttk.TTkK.ClickFocus + ttk.TTkK.TabFocus)
+
+    def mousePressEvent(self, evt):
+        # TTkLog.debug(f"{self._text} Test Mouse {evt}")
+        self.update()
+        return True
+
+    def paintEvent(self, canvas):
+        canvas.fill(pos=(0,0), size=(2,2))
+
+print("\n############# Phase 1 ##################")
+# wid = ttk.TTkWidget()
+wid = ttk.TTkButton()
+# wid = ttk.TTkGraph()
+# wid = ttk.TTkSpacer()
+# wid = ttk.TTkSplitter()
+# wid = TestWid()
+# sizef = wid.size
+sizef = []
+
+wrwid    = weakref.ref(wid)
+# wrsizef  = weakref.ref(sizef)
+wrsizef  = wrwid
+# wrsizef2 = weakref.WeakMethod(wid.size)
+wrsizef2 = wrwid
+
+_ref(wid)
+
+print(f"{wrwid()=} {wrsizef()=} {wrsizef2()=}")
+del wid
+print(f"{gc.collect()=}")
+# print(f"{sizef()}")
+print(f"{wrwid()=} {wrsizef()=} {wrsizef2()=}")
+sizef = None
+print(f"{wrwid()=} {wrsizef()=} {wrsizef2()=}")
+# time.sleep(4)
+# print(f"{wrwid()=} {wrsizef()=} {wrsizef2()=}")
+print(f"{gc.collect()=}")
+print(f"{wrwid()=} {wrsizef()=} {wrsizef2()=}")
+
+print(f"{gc.garbage=}")
+print(f"End {gc.get_count()=}")
diff --git a/tests/weakref/test.05.TermTk.03.signals.py b/tests/weakref/test.05.TermTk.03.signals.py
new file mode 100755
index 00000000..8446847a
--- /dev/null
+++ b/tests/weakref/test.05.TermTk.03.signals.py
@@ -0,0 +1,95 @@
+#!/usr/bin/env python3
+
+# MIT License
+#
+# Copyright (c) 2023 Eugenio Parodi <ceccopierangiolieugenio AT googlemail DOT com>
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
+import sys, os
+import gc, weakref, time
+
+sys.path.append(os.path.join(sys.path[0],'../..'))
+sys.path.append(os.path.join(sys.path[0],'.'))
+import TermTk as ttk
+
+def pobjs():
+    for i,o in enumerate(gc.get_objects()[-100:]):
+        ss = str(o)
+        if "Foo" in ss:
+            print(f" * {i} - {ss}")
+
+print(f"\nStart {gc.isenabled()=}")
+
+def _gccb(phase,info):
+    print(f" ---> {gc.garbage=}")
+    print(f" ---> {phase=} {info=}")
+# gc.callbacks.append(_gccb)
+
+def _ref(o):
+    print(f"\n### -> Referents - {o}")
+    for i,r in enumerate(gc.get_referents(o)):
+        print(f" - {i} ) {r}")
+    print(f"\n### -> Referrers - {o}")
+    for i,r in enumerate(gc.get_referrers(o)):
+        print(f" - {i} ) {r}")
+        for ii,rr in enumerate(gc.get_referrers(r)):
+            print(f"   | {ii} ) {rr}")
+        print("")
+    print("")
+
+print("\n############# Phase 1 ##################")
+
+root = ttk.TTkWidget()
+# wid = ttk.TTkWidget()
+wid = ttk.TTkButton()
+# wid = ttk.TTkLabel()
+# wid = ttk.TTkGraph()
+# wid = ttk.TTkSpacer()
+# wid = ttk.TTkSplitter()
+# sizef = wid.size
+sizef = []
+
+root.closed.connect(wid.close)
+
+ttk.TTkHelper._updateWidget = set()
+ttk.TTkHelper._updateBuffer = set()
+
+wrwid    = weakref.ref(wid)
+# wrsizef  = weakref.ref(sizef)
+wrsizef  = wrwid
+# wrsizef2 = weakref.WeakMethod(wid.size)
+wrsizef2 = wrwid
+
+_ref(wid)
+
+print(f"{wrwid()=} {wrsizef()=} {wrsizef2()=}")
+del wid
+print(f"{gc.collect()=}")
+# print(f"{sizef()}")
+print(f"{wrwid()=} {wrsizef()=} {wrsizef2()=}")
+sizef = None
+print(f"{wrwid()=} {wrsizef()=} {wrsizef2()=}")
+# time.sleep(4)
+# print(f"{wrwid()=} {wrsizef()=} {wrsizef2()=}")
+print(f"{gc.collect()=}")
+print(f"{wrwid()=} {wrsizef()=} {wrsizef2()=}")
+
+print(f"{gc.garbage=}")
+print(f"End {gc.get_count()=}")