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authorBjörn-Egil Dahlberg <[email protected]>2016-05-11 17:49:45 +0200
committerBjörn-Egil Dahlberg <[email protected]>2016-05-11 17:49:45 +0200
commitd3cde2d80d1cbcbbb70e4b8057a4f3772b7fa97f (patch)
tree6bb10917dffcd1d2f3f369ae8826e6105f9bd1bd
parent8d8d8c3817988a50ed1e058e73b247ce0a8c3616 (diff)
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erts: Add tests for enif_snprintf
-rw-r--r--erts/emulator/test/nif_SUITE.erl17
-rw-r--r--erts/emulator/test/nif_SUITE_data/nif_SUITE.c20
2 files changed, 33 insertions, 4 deletions
diff --git a/erts/emulator/test/nif_SUITE.erl b/erts/emulator/test/nif_SUITE.erl
index a7767132ee..e764071415 100644
--- a/erts/emulator/test/nif_SUITE.erl
+++ b/erts/emulator/test/nif_SUITE.erl
@@ -46,7 +46,8 @@
nif_now_time/1, nif_cpu_time/1, nif_unique_integer/1,
nif_is_process_alive/1, nif_is_port_alive/1,
nif_term_to_binary/1, nif_binary_to_term/1,
- nif_port_command/1
+ nif_port_command/1,
+ nif_snprintf/1
]).
-export([many_args_100/100]).
@@ -81,8 +82,8 @@ all() ->
nif_now_time, nif_cpu_time, nif_unique_integer,
nif_is_process_alive, nif_is_port_alive,
nif_term_to_binary, nif_binary_to_term,
- nif_port_command
- ].
+ nif_port_command,
+ nif_snprintf].
init_per_testcase(_Case, Config) ->
Config.
@@ -2024,9 +2025,18 @@ nif_port_command(Config) ->
port_close(Port),
{'EXIT', {badarg, _}} = (catch port_command_nif(Port, "hello\n")),
+ ok.
+nif_snprintf(Config) ->
+ ensure_lib_loaded(Config),
+ <<"ok",0>> = format_term_nif(3,ok),
+ <<"o",0>> = format_term_nif(2,ok),
+ <<"\"hello world\"",0>> = format_term_nif(14,"hello world"),
+ <<"{{hello,world,-33},3.14",_/binary>> = format_term_nif(50,{{hello,world, -33}, 3.14, self()}),
+ <<"{{hello,world,-33},",0>> = format_term_nif(20,{{hello,world, -33}, 3.14, self()}),
ok.
+
%% The NIFs:
lib_version() -> undefined.
call_history() -> ?nif_stub.
@@ -2091,6 +2101,7 @@ is_port_alive_nif(_) -> ?nif_stub.
term_to_binary_nif(_, _) -> ?nif_stub.
binary_to_term_nif(_, _, _) -> ?nif_stub.
port_command_nif(_, _) -> ?nif_stub.
+format_term_nif(_,_) -> ?nif_stub.
%% maps
is_map_nif(_) -> ?nif_stub.
diff --git a/erts/emulator/test/nif_SUITE_data/nif_SUITE.c b/erts/emulator/test/nif_SUITE_data/nif_SUITE.c
index 11e5dab58e..951b6959a8 100644
--- a/erts/emulator/test/nif_SUITE_data/nif_SUITE.c
+++ b/erts/emulator/test/nif_SUITE_data/nif_SUITE.c
@@ -2109,6 +2109,23 @@ static ERL_NIF_TERM port_command(ErlNifEnv* env, int argc, const ERL_NIF_TERM ar
return atom_true;
}
+static ERL_NIF_TERM format_term(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
+{
+ ErlNifBinary obin;
+ unsigned int size;
+
+ if (!enif_get_uint(env, argv[0], &size))
+ return enif_make_badarg(env);
+ if (!enif_alloc_binary(size,&obin))
+ return enif_make_badarg(env);
+
+ if (enif_snprintf((char*)obin.data, (size_t)size, "%T", argv[1]) < 0)
+ return atom_false;
+
+ return enif_make_binary(env,&obin);
+}
+
+
static ErlNifFunc nif_funcs[] =
{
{"lib_version", 0, lib_version},
@@ -2190,7 +2207,8 @@ static ErlNifFunc nif_funcs[] =
{"is_port_alive_nif", 1, is_port_alive},
{"term_to_binary_nif", 2, term_to_binary},
{"binary_to_term_nif", 3, binary_to_term},
- {"port_command_nif", 2, port_command}
+ {"port_command_nif", 2, port_command},
+ {"format_term_nif", 2, format_term}
};
ERL_NIF_INIT(nif_SUITE,nif_funcs,load,reload,upgrade,unload)