Commit d45f80ba authored by Marc-André Lureau's avatar Marc-André Lureau Committed by Paolo Bonzini
Browse files

test: add some chardev mux event tests 



Check the expected behaviour of qemu_chr_be_event() on a mux chardev.

For some reason, sending the event on the base chardev broadcast to
all frontends, while sending it on the mux chardev itself should
trigger the event on the currently focused chardev frontend.

Signed-off-by: default avatarMarc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20171103152824.21948-3-marcandre.lureau@redhat.com>
Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
parent d09c4a47

tests/test-char.c

+17 −0
Original line number Diff line number Diff line
@@ -5,6 +5,7 @@ 
#include "qemu/config-file.h"

#include "qemu/sockets.h"

#include "chardev/char-fe.h"

#include "chardev/char-mux.h"

#include "sysemu/sysemu.h"

#include "qapi/error.h"

#include "qom/qom-qobject.h"
@@ -164,6 +165,7 @@ static void char_mux_test(void) 
    FeHandler h1 = { 0, }, h2 = { 0, };

    CharBackend chr_be1, chr_be2;



    muxes_realized = true; /* done after machine init */

    opts = qemu_opts_create(qemu_find_opts("chardev"), "mux-label",

                            1, &error_abort);

    qemu_opt_set(opts, "backend", "ringbuf", &error_abort);
@@ -201,8 +203,23 @@ static void char_mux_test(void) 
    g_assert_cmpstr(h2.read_buf, ==, "hello");

    h2.read_count = 0;



    g_assert_cmpint(h1.last_event, !=, 42); /* should be MUX_OUT or OPENED */

    g_assert_cmpint(h2.last_event, !=, 42); /* should be MUX_IN or OPENED */

    /* sending event on the base broadcast to all fe, historical reasons? */

    qemu_chr_be_event(base, 42);

    g_assert_cmpint(h1.last_event, ==, 42);

    g_assert_cmpint(h2.last_event, ==, 42);

    qemu_chr_be_event(chr, -1);

    g_assert_cmpint(h1.last_event, ==, 42);

    g_assert_cmpint(h2.last_event, ==, -1);



    /* switch focus */

    qemu_chr_be_write(base, (void *)"\1c", 2);

    g_assert_cmpint(h1.last_event, ==, CHR_EVENT_MUX_IN);

    g_assert_cmpint(h2.last_event, ==, CHR_EVENT_MUX_OUT);

    qemu_chr_be_event(chr, -1);

    g_assert_cmpint(h1.last_event, ==, -1);

    g_assert_cmpint(h2.last_event, ==, CHR_EVENT_MUX_OUT);



    qemu_chr_be_write(base, (void *)"hello", 6);

    g_assert_cmpint(h2.read_count, ==, 0);