added CTk zoom behavior test

test/manual_integration_tests/test_window_behavior/test_ctk_appearance_mode_change.py

@@ -7,9 +7,6 @@ customtkinter.set_appearance_mode("dark")
 app = customtkinter.CTk()
 app.geometry("400x240")
 
-app.withdraw()
-app.after(2000, app.deiconify)
-
 
 def change_appearance_mode():
     # test appearance mode change while withdrawn

test/manual_integration_tests/test_window_behavior/test_ctk_zoomed_state.py

@@ -0,0 +1,27 @@
+import customtkinter
+
+customtkinter.set_appearance_mode("dark")
+
+
+app = customtkinter.CTk()
+app.geometry("400x240")
+
+
+def change_appearance_mode():
+    # test zoom with withdraw
+    app.after(1000, lambda: app.state("zoomed"))
+    app.after(2000, app.withdraw)
+    app.after(3000, app.deiconify)
+    app.after(4000, lambda: app.state("normal"))
+
+    # test zoom with iconify
+    app.after(5000, lambda: app.state("zoomed"))
+    app.after(6000, app.iconify)
+    app.after(7000, app.deiconify)
+    app.after(8000, lambda: app.state("normal"))
+
+
+button_1 = customtkinter.CTkButton(app, text="start test", command=change_appearance_mode)
+button_1.pack(pady=20, padx=20)
+
+app.mainloop()