From 68cf36a7ea49ba5c66fe6205de0ab85931e46a2e Mon Sep 17 00:00:00 2001 From: Artem Pisarenko Date: Tue, 6 Nov 2018 18:40:52 +0600 Subject: [PATCH] tests/test-char: add muxed chardev testing for open/close MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 Reviewed-by: Marc-André Lureau Message-Id: Signed-off-by: Marc-André Lureau --- tests/test-char.c | 80 +++++++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 78 insertions(+), 2 deletions(-) diff --git a/tests/test-char.c b/tests/test-char.c index 19c3efad72..018e2eed93 100644 --- a/tests/test-char.c +++ b/tests/test-char.c @@ -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);