Commit aa7ee42e authored by Stefan Hajnoczi's avatar Stefan Hajnoczi Committed by Kevin Wolf

coroutine: add test-coroutine automated tests

To run automated tests for coroutines:

  make test-coroutine
  ./test-coroutine

On success the program terminates with exit status 0.  On failure an
error message is written to stderr and the program exits with exit
status 1.
Signed-off-by: default avatarStefan Hajnoczi <stefanha@linux.vnet.ibm.com>
parent d0e2fce5
......@@ -36,6 +36,7 @@ qemu-io
qemu-ga
qemu-monitor.texi
QMP/qmp-commands.txt
test-coroutine
.gdbinit
*.a
*.aux
......
......@@ -151,7 +151,7 @@ qemu-io$(EXESUF): qemu-io.o cmd.o qemu-tool.o qemu-error.o $(oslib-obj-y) $(trac
qemu-img-cmds.h: $(SRC_PATH)/qemu-img-cmds.hx
$(call quiet-command,sh $(SRC_PATH)/scripts/hxtool -h < $< > $@," GEN $@")
check-qint.o check-qstring.o check-qdict.o check-qlist.o check-qfloat.o check-qjson.o: $(GENERATED_HEADERS)
check-qint.o check-qstring.o check-qdict.o check-qlist.o check-qfloat.o check-qjson.o test-coroutine.o: $(GENERATED_HEADERS)
CHECK_PROG_DEPS = qemu-malloc.o $(oslib-obj-y) $(trace-obj-y) qemu-tool.o
......@@ -161,6 +161,7 @@ check-qdict: check-qdict.o qdict.o qfloat.o qint.o qstring.o qbool.o qlist.o $(C
check-qlist: check-qlist.o qlist.o qint.o $(CHECK_PROG_DEPS)
check-qfloat: check-qfloat.o qfloat.o $(CHECK_PROG_DEPS)
check-qjson: check-qjson.o qfloat.o qint.o qdict.o qstring.o qlist.o qbool.o qjson.o json-streamer.o json-lexer.o json-parser.o error.o qerror.o qemu-error.o $(CHECK_PROG_DEPS)
test-coroutine: test-coroutine.o qemu-timer-common.o async.o $(coroutine-obj-y) $(CHECK_PROG_DEPS)
$(qapi-obj-y): $(GENERATED_HEADERS)
qapi-dir := qapi-generated
......
/*
* Coroutine tests
*
* Copyright IBM, Corp. 2011
*
* Authors:
* Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
*
* This work is licensed under the terms of the GNU LGPL, version 2 or later.
* See the COPYING.LIB file in the top-level directory.
*
*/
#include <glib.h>
#include "qemu-coroutine.h"
/*
* Check that qemu_in_coroutine() works
*/
static void coroutine_fn verify_in_coroutine(void *opaque)
{
g_assert(qemu_in_coroutine());
}
static void test_in_coroutine(void)
{
Coroutine *coroutine;
g_assert(!qemu_in_coroutine());
coroutine = qemu_coroutine_create(verify_in_coroutine);
qemu_coroutine_enter(coroutine, NULL);
}
/*
* Check that qemu_coroutine_self() works
*/
static void coroutine_fn verify_self(void *opaque)
{
g_assert(qemu_coroutine_self() == opaque);
}
static void test_self(void)
{
Coroutine *coroutine;
coroutine = qemu_coroutine_create(verify_self);
qemu_coroutine_enter(coroutine, coroutine);
}
/*
* Check that coroutines may nest multiple levels
*/
typedef struct {
unsigned int n_enter; /* num coroutines entered */
unsigned int n_return; /* num coroutines returned */
unsigned int max; /* maximum level of nesting */
} NestData;
static void coroutine_fn nest(void *opaque)
{
NestData *nd = opaque;
nd->n_enter++;
if (nd->n_enter < nd->max) {
Coroutine *child;
child = qemu_coroutine_create(nest);
qemu_coroutine_enter(child, nd);
}
nd->n_return++;
}
static void test_nesting(void)
{
Coroutine *root;
NestData nd = {
.n_enter = 0,
.n_return = 0,
.max = 128,
};
root = qemu_coroutine_create(nest);
qemu_coroutine_enter(root, &nd);
/* Must enter and return from max nesting level */
g_assert_cmpint(nd.n_enter, ==, nd.max);
g_assert_cmpint(nd.n_return, ==, nd.max);
}
/*
* Check that yield/enter transfer control correctly
*/
static void coroutine_fn yield_5_times(void *opaque)
{
bool *done = opaque;
int i;
for (i = 0; i < 5; i++) {
qemu_coroutine_yield();
}
*done = true;
}
static void test_yield(void)
{
Coroutine *coroutine;
bool done = false;
int i = -1; /* one extra time to return from coroutine */
coroutine = qemu_coroutine_create(yield_5_times);
while (!done) {
qemu_coroutine_enter(coroutine, &done);
i++;
}
g_assert_cmpint(i, ==, 5); /* coroutine must yield 5 times */
}
/*
* Check that creation, enter, and return work
*/
static void coroutine_fn set_and_exit(void *opaque)
{
bool *done = opaque;
*done = true;
}
static void test_lifecycle(void)
{
Coroutine *coroutine;
bool done = false;
/* Create, enter, and return from coroutine */
coroutine = qemu_coroutine_create(set_and_exit);
qemu_coroutine_enter(coroutine, &done);
g_assert(done); /* expect done to be true (first time) */
/* Repeat to check that no state affects this test */
done = false;
coroutine = qemu_coroutine_create(set_and_exit);
qemu_coroutine_enter(coroutine, &done);
g_assert(done); /* expect done to be true (second time) */
}
int main(int argc, char **argv)
{
g_test_init(&argc, &argv, NULL);
g_test_add_func("/basic/lifecycle", test_lifecycle);
g_test_add_func("/basic/yield", test_yield);
g_test_add_func("/basic/nesting", test_nesting);
g_test_add_func("/basic/self", test_self);
g_test_add_func("/basic/in_coroutine", test_in_coroutine);
return g_test_run();
}
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