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-rw-r--r--lib/kernel/test/pdict_SUITE.erl60
1 files changed, 60 insertions, 0 deletions
diff --git a/lib/kernel/test/pdict_SUITE.erl b/lib/kernel/test/pdict_SUITE.erl
index 638d99176e..d105952df9 100644
--- a/lib/kernel/test/pdict_SUITE.erl
+++ b/lib/kernel/test/pdict_SUITE.erl
@@ -32,10 +32,13 @@
-export([all/0, suite/0,groups/0,init_per_suite/1, end_per_suite/1,
init_per_group/2,end_per_group/2,
mixed/1,
+ literals/1,
simple/1, complicated/1, heavy/1, simple_all_keys/1, info/1]).
-export([init_per_testcase/2, end_per_testcase/2]).
-export([other_process/2]).
+-export([put_do/2, get_do/1, erase_do/1]).
+
init_per_testcase(_Case, Config) ->
Config.
@@ -48,6 +51,7 @@ suite() ->
all() ->
[simple, complicated, heavy, simple_all_keys, info,
+ literals,
mixed].
groups() ->
@@ -418,3 +422,59 @@ do_mixed([GoalN | _]=Goals, CurrN, Array0, C, Rand0) ->
Array2 = array:resize(CurrN-1, Array1),
do_mixed(Goals, CurrN-1, Array2, C+1, Rand2)
end.
+
+%% Test hash precalculation of literal keys
+literals(_Config) ->
+ %% Put literal -> get variable
+ put(1742, "1742"),
+ "1742" = ?MODULE:get_do(1742),
+ "1742" = ?MODULE:erase_do(1742),
+
+ put(-1742, "-1742"),
+ "-1742" = ?MODULE:get_do(-1742),
+ "-1742" = ?MODULE:erase_do(-1742),
+
+ put([], "NIL"),
+ "NIL" = ?MODULE:get_do([]),
+ "NIL" = ?MODULE:erase_do([]),
+
+ put(<<"binary">>, "binary"),
+ "binary" = ?MODULE:get_do(<<"binary">>),
+ "binary" = ?MODULE:erase_do(<<"binary">>),
+
+ BigBin = <<"A large binary with a lot of bytes to make it go off heap as shared and reference counted">>,
+ put(BigBin, "bigbin"),
+ "bigbin" = ?MODULE:get_do(BigBin),
+ "bigbin" = ?MODULE:erase_do(BigBin),
+
+ %% Put variable -> get literal
+ ?MODULE:put_do(4217, "4217"),
+ "4217" = get(4217),
+ "4217" = erase(4217),
+
+ ?MODULE:put_do(-4217, "-4217"),
+ "-4217" = get(-4217),
+ "-4217" = erase(-4217),
+
+ ?MODULE:put_do([], "NIL"),
+ "NIL" = get([]),
+ "NIL" = erase([]),
+
+ ?MODULE:put_do(<<"bytes">>, "bytes"),
+ "bytes" = get(<<"bytes">>),
+ "bytes" = erase(<<"bytes">>),
+
+ ?MODULE:put_do(BigBin, "BigBin"),
+ "BigBin" = get(BigBin),
+ "BigBin" = erase(BigBin),
+
+ ok.
+
+put_do(K, V) ->
+ put(K, V).
+
+get_do(K) ->
+ get(K).
+
+erase_do(K) ->
+ erase(K).