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add midi event tests
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Add some tests for the snd_midi_event_* functions.

Signed-off-by: Clemens Ladisch <[email protected]>
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@cladisch
cladisch committed Jul 6, 2009
1 parent 8541983 commit 7f73f1b
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Showing 6 changed files with 403 additions and 2 deletions.
1 change: 1 addition & 0 deletions .gitignore
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Expand Up @@ -59,3 +59,4 @@ test/queue_timer
test/rawmidi
test/seq
test/timer
test/lsb/midi_event
5 changes: 3 additions & 2 deletions configure.in
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Expand Up @@ -594,8 +594,9 @@ AC_OUTPUT(Makefile doc/Makefile doc/pictures/Makefile doc/doxygen.cfg \
src/conf/cards/Makefile \
src/conf/pcm/Makefile \
modules/Makefile modules/mixer/Makefile modules/mixer/simple/Makefile \
alsalisp/Makefile aserver/Makefile test/Makefile utils/Makefile \
utils/alsa-lib.spec utils/alsa.pc)
alsalisp/Makefile aserver/Makefile \
test/Makefile test/lsb/Makefile \
utils/Makefile utils/alsa-lib.spec utils/alsa.pc)

dnl Create asoundlib.h dynamically according to configure options
echo "Creating asoundlib.h..."
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2 changes: 2 additions & 0 deletions test/Makefile.am
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@@ -1,3 +1,5 @@
SUBDIRS=. lsb

check_PROGRAMS=control pcm pcm_min latency seq \
playmidi1 timer rawmidi midiloop \
oldapi queue_timer namehint client_event_filter
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6 changes: 6 additions & 0 deletions test/lsb/Makefile.am
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@@ -0,0 +1,6 @@
TESTS = midi_event
check_PROGRAMS = $(TESTS)
noinst_HEADERS = test.h

AM_CFLAGS = -Wall -pipe
LDADD = ../../src/libasound.la
362 changes: 362 additions & 0 deletions test/lsb/midi_event.c
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#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <regex.h>
#include "test.h"

/*
* Checks whether the regular expression matches the entire MIDI data, printed
* as hex.
*/
static int midi_matches_regex(unsigned char *midi, int count, const char *regex)
{
char *text;
regex_t re;
regmatch_t match;
int i;

text = malloc(2 * count + 1);
if (!text)
return 0;
for (i = 0; i < count; ++i)
sprintf(text + 2 * i, "%02x", midi[i]);
if (regcomp(&re, regex, REG_EXTENDED) != 0) {
free(text);
return 0;
}
i = regexec(&re, text, 1, &match, 0);
i = i == 0 && match.rm_so == 0 && match.rm_eo == strlen(text);
regfree(&re);
free(text);
return i;
}

static void test_decode(void)
{
snd_midi_event_t *midi_event;
snd_seq_event_t ev;
unsigned char buf[50];
int count;

ALSA_CHECK(snd_midi_event_new(256 /* ? */, &midi_event));

#define DECODE() snd_midi_event_decode(midi_event, buf, sizeof(buf), &ev)
#define BUF_MATCHES(str) midi_matches_regex(buf, count, str)
#define DECODES_TO(str) ((count = DECODE()), BUF_MATCHES(str))

snd_seq_ev_clear(&ev);

snd_seq_ev_set_fixed(&ev);
ev.type = SND_SEQ_EVENT_NONE;
TEST_CHECK(DECODE() == -ENOENT);

snd_seq_ev_set_noteoff(&ev, 1, 2, 3);
TEST_CHECK(DECODES_TO("810203"));

snd_seq_ev_set_noteon(&ev, 4, 5, 6);
TEST_CHECK(DECODES_TO("940506"));

snd_seq_ev_set_keypress(&ev, 7, 8, 9);
TEST_CHECK(DECODES_TO("a70809"));

snd_seq_ev_set_controller(&ev, 10, 11, 12);
TEST_CHECK(DECODES_TO("ba0b0c"));

snd_seq_ev_set_pgmchange(&ev, 13, 14);
TEST_CHECK(DECODES_TO("cd0e"));

snd_seq_ev_set_chanpress(&ev, 15, 16);
TEST_CHECK(DECODES_TO("df10"));

snd_seq_ev_set_pitchbend(&ev, 1, 0x222);
TEST_CHECK(DECODES_TO("e12244"));

snd_seq_ev_set_sysex(&ev, 6, "\xf0\x7e\x7f\x06\x01\xf7");
TEST_CHECK(DECODES_TO("f07e7f0601f7"));

snd_seq_ev_set_fixed(&ev);
ev.type = SND_SEQ_EVENT_QFRAME;
ev.data.control.value = 3;
TEST_CHECK(DECODES_TO("f103"));

ev.type = SND_SEQ_EVENT_SONGPOS;
ev.data.control.value = 0x444;
TEST_CHECK(DECODES_TO("f24408"));

ev.type = SND_SEQ_EVENT_SONGSEL;
ev.data.control.value = 5;
TEST_CHECK(DECODES_TO("f305"));

ev.type = SND_SEQ_EVENT_TUNE_REQUEST;
TEST_CHECK(DECODES_TO("f6"));

ev.type = SND_SEQ_EVENT_CLOCK;
TEST_CHECK(DECODES_TO("f8"));

ev.type = SND_SEQ_EVENT_START;
TEST_CHECK(DECODES_TO("fa"));

ev.type = SND_SEQ_EVENT_CONTINUE;
TEST_CHECK(DECODES_TO("fb"));

ev.type = SND_SEQ_EVENT_STOP;
TEST_CHECK(DECODES_TO("fc"));

ev.type = SND_SEQ_EVENT_SENSING;
TEST_CHECK(DECODES_TO("fe"));

ev.type = SND_SEQ_EVENT_RESET;
TEST_CHECK(DECODES_TO("ff"));

ev.type = SND_SEQ_EVENT_CONTROL14;
ev.data.control.channel = 6;
ev.data.control.param = 7;
ev.data.control.value = 0x888;
/*
* This regular expression catches all allowed combinations of LSB/MSB
* order and running status.
*/
TEST_CHECK(DECODES_TO("b6(0711(b6)?2708|2708(b6)?0711)"));

ev.type = SND_SEQ_EVENT_NONREGPARAM;
ev.data.control.channel = 9;
ev.data.control.param = 0xaaa;
ev.data.control.value = 0xbbb;
TEST_CHECK(DECODES_TO("b9(622a(b9)?6315|6315(b9)?622a)(b9)?(0617(b9)?263b|263b(b9)?0617)"));

ev.type = SND_SEQ_EVENT_REGPARAM;
ev.data.control.channel = 12;
ev.data.control.param = 0xddd;
ev.data.control.value = 0xeee;
TEST_CHECK(DECODES_TO("bc(645d(bc)?651b|651b(bc)?645d)(bc)?(061d(bc)?266e|266e(bc)?061d)"));

/* no running status after SysEx */
snd_seq_ev_set_pgmchange(&ev, 0, 0x11);
TEST_CHECK(DECODES_TO("c011"));
snd_seq_ev_set_sysex(&ev, 6, "\xf0\x7e\x7f\x09\x02\xf7");
TEST_CHECK(DECODES_TO("f07e7f0902f7"));
snd_seq_ev_set_pgmchange(&ev, 0, 0x11);
TEST_CHECK(DECODES_TO("c011"));

/* no running status for non-realtime common messages */
ev.type = SND_SEQ_EVENT_QFRAME;
ev.data.control.value = 0x11;
TEST_CHECK(DECODES_TO("f111"));
TEST_CHECK(DECODES_TO("f111"));

snd_midi_event_free(midi_event);
}

static void test_reset_decode(void)
{
snd_midi_event_t *midi_event;
snd_seq_event_t ev;
unsigned char buf[50];
int count;

ALSA_CHECK(snd_midi_event_new(256 /* ? */, &midi_event));

snd_seq_ev_clear(&ev);

snd_seq_ev_set_noteon(&ev, 1, 2, 3);
TEST_CHECK(DECODES_TO("910203"));

snd_midi_event_reset_decode(midi_event);

TEST_CHECK(DECODES_TO("910203"));

snd_midi_event_free(midi_event);
}

static void test_encode(void)
{
snd_midi_event_t *midi_event;
snd_seq_event_t ev;

ALSA_CHECK(snd_midi_event_new(256, &midi_event));

#define ENCODE(str) snd_midi_event_encode(midi_event, \
(const unsigned char *)str, \
sizeof(str) - 1, &ev)
TEST_CHECK(ENCODE("\x81\x02\x03") == 3);
TEST_CHECK(ev.type == SND_SEQ_EVENT_NOTEOFF);
TEST_CHECK((ev.flags & SND_SEQ_EVENT_LENGTH_MASK) == SND_SEQ_EVENT_LENGTH_FIXED);
TEST_CHECK(ev.data.note.channel == 1);
TEST_CHECK(ev.data.note.note == 2);
TEST_CHECK(ev.data.note.velocity == 3);

TEST_CHECK(ENCODE("\x94\x05\x06") == 3);
TEST_CHECK(ev.type == SND_SEQ_EVENT_NOTEON);
TEST_CHECK(ev.data.note.channel == 4);
TEST_CHECK(ev.data.note.note == 5);
TEST_CHECK(ev.data.note.velocity == 6);

TEST_CHECK(ENCODE("\xa7\x08\x09") == 3);
TEST_CHECK(ev.type == SND_SEQ_EVENT_KEYPRESS);
TEST_CHECK(ev.data.note.channel == 7);
TEST_CHECK(ev.data.note.note == 8);
TEST_CHECK(ev.data.note.velocity == 9);

TEST_CHECK(ENCODE("\xba\x0b\x0c") == 3);
TEST_CHECK(ev.type == SND_SEQ_EVENT_CONTROLLER);
TEST_CHECK(ev.data.control.channel == 10);
TEST_CHECK(ev.data.control.param == 11);
TEST_CHECK(ev.data.control.value == 12);

TEST_CHECK(ENCODE("\xcd\x0e") == 2);
TEST_CHECK(ev.type == SND_SEQ_EVENT_PGMCHANGE);
TEST_CHECK(ev.data.control.channel == 13);
TEST_CHECK(ev.data.control.value == 14);

TEST_CHECK(ENCODE("\xdf\x10") == 2);
TEST_CHECK(ev.type == SND_SEQ_EVENT_CHANPRESS);
TEST_CHECK(ev.data.control.channel == 15);
TEST_CHECK(ev.data.control.value == 16);

TEST_CHECK(ENCODE("\xe1\x22\x33") == 3);
TEST_CHECK(ev.type == SND_SEQ_EVENT_PITCHBEND);
TEST_CHECK(ev.data.control.channel == 1);
TEST_CHECK(ev.data.control.value == -1630);

TEST_CHECK(ENCODE("\xf0\x7f\x7f\x04\x01\x7f\x7f\xf7") == 8);
TEST_CHECK(ev.type == SND_SEQ_EVENT_SYSEX);
TEST_CHECK((ev.flags & SND_SEQ_EVENT_LENGTH_MASK) == SND_SEQ_EVENT_LENGTH_VARIABLE);
TEST_CHECK(ev.data.ext.len == 8);
TEST_CHECK(!memcmp(ev.data.ext.ptr, "\xf0\x7f\x7f\x04\x01\x7f\x7f\xf7", 8));

TEST_CHECK(ENCODE("\xf1\x04") == 2);
TEST_CHECK(ev.type == SND_SEQ_EVENT_QFRAME);
TEST_CHECK(ev.data.control.value == 4);

TEST_CHECK(ENCODE("\xf2\x55\x66") == 3);
TEST_CHECK(ev.type == SND_SEQ_EVENT_SONGPOS);
TEST_CHECK(ev.data.control.value == 13141);

TEST_CHECK(ENCODE("\xf3\x07") == 2);
TEST_CHECK(ev.type == SND_SEQ_EVENT_SONGSEL);
TEST_CHECK(ev.data.control.value == 7);

TEST_CHECK(ENCODE("\xf6") == 1);
TEST_CHECK(ev.type == SND_SEQ_EVENT_TUNE_REQUEST);

TEST_CHECK(ENCODE("\xf8") == 1);
TEST_CHECK(ev.type == SND_SEQ_EVENT_CLOCK);

TEST_CHECK(ENCODE("\xfa") == 1);
TEST_CHECK(ev.type == SND_SEQ_EVENT_START);

TEST_CHECK(ENCODE("\xfb") == 1);
TEST_CHECK(ev.type == SND_SEQ_EVENT_CONTINUE);

TEST_CHECK(ENCODE("\xfc") == 1);
TEST_CHECK(ev.type == SND_SEQ_EVENT_STOP);

TEST_CHECK(ENCODE("\xfe") == 1);
TEST_CHECK(ev.type == SND_SEQ_EVENT_SENSING);

TEST_CHECK(ENCODE("\xff") == 1);
TEST_CHECK(ev.type == SND_SEQ_EVENT_RESET);

TEST_CHECK(ENCODE("\xc1\xf8") == 2);
TEST_CHECK(ev.type == SND_SEQ_EVENT_CLOCK);
TEST_CHECK(ENCODE("\x22") == 1);
TEST_CHECK(ev.type == SND_SEQ_EVENT_PGMCHANGE);
TEST_CHECK(ev.data.control.channel == 1);
TEST_CHECK(ev.data.control.value == 0x22);
TEST_CHECK(ENCODE("\xf8") == 1);
TEST_CHECK(ev.type == SND_SEQ_EVENT_CLOCK);
TEST_CHECK(ENCODE("\x33") == 1);
TEST_CHECK(ev.type == SND_SEQ_EVENT_PGMCHANGE);
TEST_CHECK(ev.data.control.channel == 1);
TEST_CHECK(ev.data.control.value == 0x33);

TEST_CHECK(ENCODE("\xc1\xf6") == 2);
TEST_CHECK(ev.type == SND_SEQ_EVENT_TUNE_REQUEST);
TEST_CHECK(ENCODE("\x44\x44") == 2);
TEST_CHECK(ev.type == SND_SEQ_EVENT_NONE);

snd_midi_event_free(midi_event);
}

static void test_reset_encode(void)
{
snd_midi_event_t *midi_event;
snd_seq_event_t ev;

ALSA_CHECK(snd_midi_event_new(256, &midi_event));

TEST_CHECK(ENCODE("\x91\x02") == 2);
TEST_CHECK(ev.type == SND_SEQ_EVENT_NONE);

snd_midi_event_reset_encode(midi_event);

TEST_CHECK(ENCODE("\x03") == 1);
TEST_CHECK(ev.type == SND_SEQ_EVENT_NONE);

snd_midi_event_free(midi_event);
}

static void test_init(void)
{
snd_midi_event_t *midi_event;
snd_seq_event_t ev;
unsigned char buf[50];
int count;

ALSA_CHECK(snd_midi_event_new(256, &midi_event));

snd_seq_ev_set_noteon(&ev, 1, 2, 3);
TEST_CHECK(DECODES_TO("910203"));

TEST_CHECK(ENCODE("\x94\x05") == 2);
TEST_CHECK(ev.type == SND_SEQ_EVENT_NONE);

snd_midi_event_init(midi_event);

snd_seq_ev_set_noteon(&ev, 1, 2, 3);
TEST_CHECK(DECODES_TO("910203"));

TEST_CHECK(ENCODE("\x06") == 1);
TEST_CHECK(ev.type == SND_SEQ_EVENT_NONE);

snd_midi_event_free(midi_event);
}

static void test_encode_byte(void)
{
snd_midi_event_t *midi_event;
snd_seq_event_t ev;

ALSA_CHECK(snd_midi_event_new(256, &midi_event));

#define ENCODE_BYTE(c) snd_midi_event_encode_byte(midi_event, c, &ev)
TEST_CHECK(ENCODE_BYTE(0x81) == 0);
TEST_CHECK(ENCODE_BYTE(0x02) == 0);
TEST_CHECK(ENCODE_BYTE(0x03) == 1);
TEST_CHECK(ev.type == SND_SEQ_EVENT_NOTEOFF);
TEST_CHECK((ev.flags & SND_SEQ_EVENT_LENGTH_MASK) == SND_SEQ_EVENT_LENGTH_FIXED);
TEST_CHECK(ev.data.note.channel == 1);
TEST_CHECK(ev.data.note.note == 2);
TEST_CHECK(ev.data.note.velocity == 3);
TEST_CHECK(ENCODE_BYTE(0x04) == 0);
TEST_CHECK(ENCODE_BYTE(0xf8) == 1);
TEST_CHECK(ev.type == SND_SEQ_EVENT_CLOCK);
TEST_CHECK(ENCODE_BYTE(0x05) == 1);
TEST_CHECK(ev.type == SND_SEQ_EVENT_NOTEOFF);
TEST_CHECK(ev.data.note.channel == 1);
TEST_CHECK(ev.data.note.note == 4);
TEST_CHECK(ev.data.note.velocity == 5);

snd_midi_event_free(midi_event);
}

int main(void)
{
test_decode();
test_reset_decode();
test_encode();
test_reset_encode();
test_encode_byte();
test_init();
return TEST_EXIT_CODE();
}
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