test: add cleanup delay to prevent orphan QUIC process crashes

Add timer:sleep(100) in cleanup functions to allow late UDP packets
to be processed before test processes exit. This prevents EUnit from
detecting orphan process crashes and marking tests as cancelled.

Author: benoitc

test/hackney_conn_http3_tests.erl

@@ -21,6 +21,8 @@ setup() ->
 
 cleanup(_) ->
     hackney_conn_sup:stop_all(),
+    %% Allow time for late UDP packets to be processed
+    timer:sleep(100),
     ok.
 
 %%====================================================================

test/hackney_h3_integration_tests.erl

@@ -29,6 +29,8 @@ setup() ->
 
 cleanup(_) ->
     hackney_conn_sup:stop_all(),
+    %% Allow time for late UDP packets to be processed
+    timer:sleep(100),
     ok.
 
 %%====================================================================

test/hackney_h3_redirect_tests.erl

@@ -32,6 +32,8 @@ setup() ->
 
 cleanup(_) ->
     hackney_conn_sup:stop_all(),
+    %% Allow time for late UDP packets to be processed
+    timer:sleep(100),
     ok.
 
 %%====================================================================

test/hackney_http3_integration_tests.erl

@@ -23,6 +23,8 @@ setup() ->
 cleanup(_) ->
     hackney_conn_sup:stop_all(),
     hackney_altsvc:clear_all(),
+    %% Allow time for late UDP packets to be processed
+    timer:sleep(100),
     ok.
 
 %%====================================================================

test/hackney_http3_streaming_tests.erl

@@ -23,6 +23,8 @@ setup() ->
 cleanup(_) ->
     hackney_conn_sup:stop_all(),
     hackney_altsvc:clear_all(),
+    %% Allow time for late UDP packets to be processed
+    timer:sleep(100),
     ok.
 
 %%====================================================================

test/hackney_http3_tests.erl

@@ -23,6 +23,8 @@ setup() ->
 
 cleanup(_) ->
     hackney_conn_sup:stop_all(),
+    %% Allow time for late UDP packets to be processed
+    timer:sleep(100),
     ok.
 
 %%====================================================================

test/hackney_pool_h3_tests.erl

@@ -21,6 +21,8 @@ setup() ->
 
 cleanup(_) ->
     hackney_conn_sup:stop_all(),
+    %% Allow time for late UDP packets to be processed
+    timer:sleep(100),
     ok.
 
 %%====================================================================

test/hackney_quic_tests.erl

@@ -22,6 +22,8 @@ setup() ->
 
 cleanup(_) ->
     hackney_conn_sup:stop_all(),
+    %% Allow time for late UDP packets to be processed
+    timer:sleep(100),
     ok.
 
 %%====================================================================