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tests/test-char: add muxed chardev testing for open/close 

Validate that frontend callbacks for CHR_EVENT_OPENED/CHR_EVENT_CLOSED
events are being issued when expected and in strictly pairing order.

Signed-off-by: Artem Pisarenko <artem.k.pisarenko@gmail.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <ac67ff2d27dd51a0075d5d634355c9e4f7bb53de.1541507990.git.artem.k.pisarenko@gmail.com>
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
master
Artem Pisarenko 2018-11-06 18:40:52 +06:00 committed by Marc-André Lureau
parent 7a9657ef53
commit 68cf36a7ea
1 changed files with 78 additions and 2 deletions
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80
tests/test-char.c
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@ -16,6 +16,9 @@ static bool quit;
typedef struct FeHandler {
int read_count;
bool is_open;
int openclose_count;
bool openclose_mismatch;
int last_event;
char read_buf[128];
} FeHandler;
@ -49,10 +52,24 @@ static void fe_read(void *opaque, const uint8_t *buf, int size)
static void fe_event(void *opaque, int event)
{
FeHandler *h = opaque;
bool new_open_state;
h->last_event = event;
if (event != CHR_EVENT_BREAK) {
switch (event) {
case CHR_EVENT_BREAK:
break;
case CHR_EVENT_OPENED:
case CHR_EVENT_CLOSED:
h->openclose_count++;
new_open_state = (event == CHR_EVENT_OPENED);
if (h->is_open == new_open_state) {
h->openclose_mismatch = true;
}
h->is_open = new_open_state;
/* no break */
default:
quit = true;
break;
}
}
@ -161,7 +178,7 @@ static void char_mux_test(void)
QemuOpts *opts;
Chardev *chr, *base;
char *data;
FeHandler h1 = { 0, }, h2 = { 0, };
FeHandler h1 = { 0, false, 0, false, }, h2 = { 0, false, 0, false, };
CharBackend chr_be1, chr_be2;
opts = qemu_opts_create(qemu_find_opts("chardev"), "mux-label",
@ -233,6 +250,65 @@ static void char_mux_test(void)
g_assert_cmpint(h1.last_event, ==, CHR_EVENT_BREAK);
g_assert_cmpint(h2.last_event, ==, CHR_EVENT_MUX_OUT);
/* open/close state and corresponding events */
g_assert_true(qemu_chr_fe_backend_open(&chr_be1));
g_assert_true(qemu_chr_fe_backend_open(&chr_be2));
g_assert_true(h1.is_open);
g_assert_false(h1.openclose_mismatch);
g_assert_true(h2.is_open);
g_assert_false(h2.openclose_mismatch);
h1.openclose_count = h2.openclose_count = 0;
qemu_chr_fe_set_handlers(&chr_be1, NULL, NULL, NULL, NULL,
NULL, NULL, false);
qemu_chr_fe_set_handlers(&chr_be2, NULL, NULL, NULL, NULL,
NULL, NULL, false);
g_assert_cmpint(h1.openclose_count, ==, 0);
g_assert_cmpint(h2.openclose_count, ==, 0);
h1.is_open = h2.is_open = false;
qemu_chr_fe_set_handlers(&chr_be1,
NULL,
NULL,
fe_event,
NULL,
&h1,
NULL, false);
qemu_chr_fe_set_handlers(&chr_be2,
NULL,
NULL,
fe_event,
NULL,
&h2,
NULL, false);
g_assert_cmpint(h1.openclose_count, ==, 1);
g_assert_false(h1.openclose_mismatch);
g_assert_cmpint(h2.openclose_count, ==, 1);
g_assert_false(h2.openclose_mismatch);
qemu_chr_be_event(base, CHR_EVENT_CLOSED);
qemu_chr_be_event(base, CHR_EVENT_OPENED);
g_assert_cmpint(h1.openclose_count, ==, 3);
g_assert_false(h1.openclose_mismatch);
g_assert_cmpint(h2.openclose_count, ==, 3);
g_assert_false(h2.openclose_mismatch);
qemu_chr_fe_set_handlers(&chr_be2,
fe_can_read,
fe_read,
fe_event,
NULL,
&h2,
NULL, false);
qemu_chr_fe_set_handlers(&chr_be1,
fe_can_read,
fe_read,
fe_event,
NULL,
&h1,
NULL, false);
/* remove first handler */
qemu_chr_fe_set_handlers(&chr_be1, NULL, NULL, NULL, NULL,
NULL, NULL, true);