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-rw-r--r--lib/stdlib/test/ets_SUITE.erl69
1 files changed, 66 insertions, 3 deletions
diff --git a/lib/stdlib/test/ets_SUITE.erl b/lib/stdlib/test/ets_SUITE.erl
index 3900a9fedd..7f39dbe21f 100644
--- a/lib/stdlib/test/ets_SUITE.erl
+++ b/lib/stdlib/test/ets_SUITE.erl
@@ -94,6 +94,8 @@
do_heavy_concurrent/1
]).
+-export([t_select_reverse/1]).
+
-include("test_server.hrl").
init_per_testcase(Case, Config) ->
@@ -128,7 +130,7 @@ all(suite) ->
match_heavy, fold, member,
t_delete_object, t_init_table, t_whitebox,
t_delete_all_objects, t_insert_list, t_test_ms,
- t_select_delete, t_ets_dets, memory,
+ t_select_delete, t_ets_dets, memory, t_select_reverse,
t_bucket_disappears,
select_fail,t_insert_new, t_repair_continuation, otp_5340, otp_6338,
otp_6842_select_1000, otp_7665, otp_8732,
@@ -788,6 +790,67 @@ t_test_ms(Config) when is_list(Config) ->
?line true = (if is_list(String) -> true; true -> false end),
?line verify_etsmem(EtsMem).
+t_select_reverse(doc) ->
+ ["Test the select reverse BIF's"];
+t_select_reverse(suite) ->
+ [];
+t_select_reverse(Config) when is_list(Config) ->
+ ?line Table = ets:new(xxx, [ordered_set]),
+ ?line filltabint(Table,1000),
+ ?line A = lists:reverse(ets:select(Table,[{{'$1', '_'},
+ [{'>',
+ {'rem',
+ '$1', 5},
+ 2}],
+ ['$_']}])),
+ ?line A = ets:select_reverse(Table,[{{'$1', '_'},
+ [{'>',
+ {'rem',
+ '$1', 5},
+ 2}],
+ ['$_']}]),
+ ?line A = reverse_chunked(Table,[{{'$1', '_'},
+ [{'>',
+ {'rem',
+ '$1', 5},
+ 2}],
+ ['$_']}],3),
+ % A set/bag/duplicate_bag should get the same result regardless
+ % of select or select_reverse
+ ?line Table2 = ets:new(xxx, [set]),
+ ?line filltabint(Table2,1000),
+ ?line Table3 = ets:new(xxx, [bag]),
+ ?line filltabint(Table3,1000),
+ ?line Table4 = ets:new(xxx, [duplicate_bag]),
+ ?line filltabint(Table4,1000),
+ ?line lists:map(fun(Tab) ->
+ B = ets:select(Tab,[{{'$1', '_'},
+ [{'>',
+ {'rem',
+ '$1', 5},
+ 2}],
+ ['$_']}]),
+ B = ets:select_reverse(Tab,[{{'$1', '_'},
+ [{'>',
+ {'rem',
+ '$1', 5},
+ 2}],
+ ['$_']}])
+ end,[Table2, Table3, Table4]),
+ ok.
+
+
+
+reverse_chunked(T,MS,N) ->
+ do_reverse_chunked(ets:select_reverse(T,MS,N),[]).
+
+do_reverse_chunked('$end_of_table',Acc) ->
+ lists:reverse(Acc);
+do_reverse_chunked({L,C},Acc) ->
+ NewAcc = lists:reverse(L)++Acc,
+ do_reverse_chunked(ets:select_reverse(C), NewAcc).
+
+
t_select_delete(doc) ->
["Test the ets:select_delete/2 and ets:select_count/2 BIF's"];
t_select_delete(suite) ->
@@ -3942,7 +4005,7 @@ do_lookup_element(Tab, N, M) ->
end.
-heavy_concurrent(Config) ->
+heavy_concurrent(_Config) ->
repeat_for_opts(do_heavy_concurrent).
do_heavy_concurrent(Opts) ->
@@ -3961,7 +4024,7 @@ do_heavy_concurrent(Opts) ->
?line lists:foreach(fun (P) ->
M = erlang:monitor(process, P),
receive
- {'DOWN', Mon, process, P, _} ->
+ {'DOWN', M, process, P, _} ->
ok
end
end,