qemu-e2k/tests/test-opts-visitor.c

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/*
* Options Visitor unit-tests.
*
* Copyright (C) 2013 Red Hat, Inc.
*
* Authors:
* Laszlo Ersek <lersek@redhat.com> (based on test-string-output-visitor)
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*/
#include "qemu/osdep.h"
#include <glib.h>
#include "qemu/config-file.h" /* qemu_add_opts() */
#include "qemu/option.h" /* qemu_opts_parse() */
2016-03-14 09:01:28 +01:00
#include "qapi/error.h"
#include "qapi/opts-visitor.h" /* opts_visitor_new() */
#include "test-qapi-visit.h" /* visit_type_UserDefOptions() */
static QemuOptsList userdef_opts = {
.name = "userdef",
.head = QTAILQ_HEAD_INITIALIZER(userdef_opts.head),
.desc = { { 0 } } /* validated with OptsVisitor */
};
/* fixture (= glib test case context) and test case manipulation */
typedef struct OptsVisitorFixture {
UserDefOptions *userdef;
Error *err;
} OptsVisitorFixture;
static void
setup_fixture(OptsVisitorFixture *f, gconstpointer test_data)
{
const char *opts_string = test_data;
QemuOpts *opts;
OptsVisitor *ov;
QemuOpts: Wean off qerror_report_err() qerror_report_err() is a transitional interface to help with converting existing monitor commands to QMP. It should not be used elsewhere. The only remaining user in qemu-option.c is qemu_opts_parse(). Is it used in QMP context? If not, we can simply replace qerror_report_err() by error_report_err(). The uses in qemu-img.c, qemu-io.c, qemu-nbd.c and under tests/ are clearly not in QMP context. The uses in vl.c aren't either, because the only QMP command handlers there are qmp_query_status() and qmp_query_machines(), and they don't call it. Remaining uses: * drive_def(): Command line -drive and such, HMP drive_add and pci_add * hmp_chardev_add(): HMP chardev-add * monitor_parse_command(): HMP core * tmp_config_parse(): Command line -tpmdev * net_host_device_add(): HMP host_net_add * net_client_parse(): Command line -net and -netdev * qemu_global_option(): Command line -global * vnc_parse_func(): Command line -display, -vnc, default display, HMP change, QMP change. Bummer. * qemu_pci_hot_add_nic(): HMP pci_add * usb_net_init(): Command line -usbdevice, HMP usb_add Propagate errors through qemu_opts_parse(). Create a convenience function qemu_opts_parse_noisily() that passes errors to error_report_err(). Switch all non-QMP users outside tests to it. That leaves vnc_parse_func(). Propagate errors through it. Since I'm touching it anyway, rename it to vnc_parse(). Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com>
2015-02-13 12:50:26 +01:00
opts = qemu_opts_parse(qemu_find_opts("userdef"), opts_string, false,
NULL);
g_assert(opts != NULL);
ov = opts_visitor_new(opts);
qapi: Swap visit_* arguments for consistent 'name' placement JSON uses "name":value, but many of our visitor interfaces were called with visit_type_FOO(v, &value, name, errp). This can be a bit confusing to have to mentally swap the parameter order to match JSON order. It's particularly bad for visit_start_struct(), where the 'name' parameter is smack in the middle of the otherwise-related group of 'obj, kind, size' parameters! It's time to do a global swap of the parameter ordering, so that the 'name' parameter is always immediately after the Visitor argument. Additional reason in favor of the swap: the existing include/qjson.h prefers listing 'name' first in json_prop_*(), and I have plans to unify that file with the qapi visitors; listing 'name' first in qapi will minimize churn to the (admittedly few) qjson.h clients. Later patches will then fix docs, object.h, visitor-impl.h, and those clients to match. Done by first patching scripts/qapi*.py by hand to make generated files do what I want, then by running the following Coccinelle script to affect the rest of the code base: $ spatch --sp-file script `git grep -l '\bvisit_' -- '**/*.[ch]'` I then had to apply some touchups (Coccinelle insisted on TAB indentation in visitor.h, and botched the signature of visit_type_enum() by rewriting 'const char *const strings[]' to the syntactically invalid 'const char*const[] strings'). The movement of parameters is sufficient to provoke compiler errors if any callers were missed. // Part 1: Swap declaration order @@ type TV, TErr, TObj, T1, T2; identifier OBJ, ARG1, ARG2; @@ void visit_start_struct -(TV v, TObj OBJ, T1 ARG1, const char *name, T2 ARG2, TErr errp) +(TV v, const char *name, TObj OBJ, T1 ARG1, T2 ARG2, TErr errp) { ... } @@ type bool, TV, T1; identifier ARG1; @@ bool visit_optional -(TV v, T1 ARG1, const char *name) +(TV v, const char *name, T1 ARG1) { ... } @@ type TV, TErr, TObj, T1; identifier OBJ, ARG1; @@ void visit_get_next_type -(TV v, TObj OBJ, T1 ARG1, const char *name, TErr errp) +(TV v, const char *name, TObj OBJ, T1 ARG1, TErr errp) { ... } @@ type TV, TErr, TObj, T1, T2; identifier OBJ, ARG1, ARG2; @@ void visit_type_enum -(TV v, TObj OBJ, T1 ARG1, T2 ARG2, const char *name, TErr errp) +(TV v, const char *name, TObj OBJ, T1 ARG1, T2 ARG2, TErr errp) { ... } @@ type TV, TErr, TObj; identifier OBJ; identifier VISIT_TYPE =~ "^visit_type_"; @@ void VISIT_TYPE -(TV v, TObj OBJ, const char *name, TErr errp) +(TV v, const char *name, TObj OBJ, TErr errp) { ... } // Part 2: swap caller order @@ expression V, NAME, OBJ, ARG1, ARG2, ERR; identifier VISIT_TYPE =~ "^visit_type_"; @@ ( -visit_start_struct(V, OBJ, ARG1, NAME, ARG2, ERR) +visit_start_struct(V, NAME, OBJ, ARG1, ARG2, ERR) | -visit_optional(V, ARG1, NAME) +visit_optional(V, NAME, ARG1) | -visit_get_next_type(V, OBJ, ARG1, NAME, ERR) +visit_get_next_type(V, NAME, OBJ, ARG1, ERR) | -visit_type_enum(V, OBJ, ARG1, ARG2, NAME, ERR) +visit_type_enum(V, NAME, OBJ, ARG1, ARG2, ERR) | -VISIT_TYPE(V, OBJ, NAME, ERR) +VISIT_TYPE(V, NAME, OBJ, ERR) ) Signed-off-by: Eric Blake <eblake@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <1454075341-13658-19-git-send-email-eblake@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
2016-01-29 14:48:54 +01:00
visit_type_UserDefOptions(opts_get_visitor(ov), NULL, &f->userdef,
&f->err);
opts_visitor_cleanup(ov);
qemu_opts_del(opts);
}
static void
teardown_fixture(OptsVisitorFixture *f, gconstpointer test_data)
{
qapi_free_UserDefOptions(f->userdef);
error_free(f->err);
}
static void
add_test(const char *testpath,
void (*test_func)(OptsVisitorFixture *f, gconstpointer test_data),
gconstpointer test_data)
{
g_test_add(testpath, OptsVisitorFixture, test_data, setup_fixture,
test_func, teardown_fixture);
}
/* test output evaluation */
static void
expect_ok(OptsVisitorFixture *f, gconstpointer test_data)
{
g_assert(f->err == NULL);
g_assert(f->userdef != NULL);
}
static void
expect_fail(OptsVisitorFixture *f, gconstpointer test_data)
{
g_assert(f->err != NULL);
/* The error message is printed when this test utility is invoked directly
* (ie. without gtester) and the --verbose flag is passed:
*
* tests/test-opts-visitor --verbose
*/
g_test_message("'%s': %s", (const char *)test_data,
error_get_pretty(f->err));
}
static void
test_value(OptsVisitorFixture *f, gconstpointer test_data)
{
uint64_t magic, bitval;
intList *i64;
uint64List *u64;
uint16List *u16;
expect_ok(f, test_data);
magic = 0;
for (i64 = f->userdef->i64; i64 != NULL; i64 = i64->next) {
g_assert(-16 <= i64->value && i64->value < 64-16);
bitval = 1ull << (i64->value + 16);
g_assert((magic & bitval) == 0);
magic |= bitval;
}
g_assert(magic == 0xDEADBEEF);
magic = 0;
for (u64 = f->userdef->u64; u64 != NULL; u64 = u64->next) {
g_assert(u64->value < 64);
bitval = 1ull << u64->value;
g_assert((magic & bitval) == 0);
magic |= bitval;
}
g_assert(magic == 0xBADC0FFEE0DDF00DULL);
magic = 0;
for (u16 = f->userdef->u16; u16 != NULL; u16 = u16->next) {
g_assert(u16->value < 64);
bitval = 1ull << u16->value;
g_assert((magic & bitval) == 0);
magic |= bitval;
}
g_assert(magic == 0xD15EA5E);
}
static void
expect_i64_min(OptsVisitorFixture *f, gconstpointer test_data)
{
expect_ok(f, test_data);
g_assert(f->userdef->has_i64);
g_assert(f->userdef->i64->next == NULL);
g_assert(f->userdef->i64->value == INT64_MIN);
}
static void
expect_i64_max(OptsVisitorFixture *f, gconstpointer test_data)
{
expect_ok(f, test_data);
g_assert(f->userdef->has_i64);
g_assert(f->userdef->i64->next == NULL);
g_assert(f->userdef->i64->value == INT64_MAX);
}
static void
expect_zero(OptsVisitorFixture *f, gconstpointer test_data)
{
expect_ok(f, test_data);
g_assert(f->userdef->has_u64);
g_assert(f->userdef->u64->next == NULL);
g_assert(f->userdef->u64->value == 0);
}
static void
expect_u64_max(OptsVisitorFixture *f, gconstpointer test_data)
{
expect_ok(f, test_data);
g_assert(f->userdef->has_u64);
g_assert(f->userdef->u64->next == NULL);
g_assert(f->userdef->u64->value == UINT64_MAX);
}
/* test cases */
int
main(int argc, char **argv)
{
g_test_init(&argc, &argv, NULL);
qemu_add_opts(&userdef_opts);
/* Three hexadecimal magic numbers, "dead beef", "bad coffee, odd food" and
* "disease", from
* <http://en.wikipedia.org/wiki/Magic_number_%28programming%29>, were
* converted to binary and dissected into bit ranges. Each magic number is
* going to be recomposed using the lists called "i64", "u64" and "u16",
* respectively.
*
* (Note that these types pertain to the individual bit shift counts, not
* the magic numbers themselves; the intent is to exercise opts_type_int()
* and opts_type_uint64().)
*
* The "i64" shift counts have been decreased by 16 (decimal) in order to
* test negative values as well. Finally, the full list of QemuOpt elements
* has been permuted with "shuf".
*
* Both "i64" and "u64" have some (distinct) single-element ranges
* represented as both "a" and "a-a". "u16" is a special case of "i64" (see
* visit_type_uint16()), so it wouldn't add a separate test in this regard.
*/
add_test("/visitor/opts/flatten/value", &test_value,
"i64=-1-0,u64=12-16,u64=2-3,i64=-11--9,u64=57,u16=9,i64=5-5,"
"u16=1-4,u16=20,u64=63-63,i64=-16--13,u64=50-52,i64=14-15,u16=11,"
"i64=7,u16=18,i64=2-3,u16=6,u64=54-55,u64=0,u64=18-20,u64=33-43,"
"i64=9-12,u16=26-27,u64=59-61,u16=13-16,u64=29-31,u64=22-23,"
"u16=24,i64=-7--3");
add_test("/visitor/opts/i64/val1/errno", &expect_fail,
"i64=0x8000000000000000");
add_test("/visitor/opts/i64/val1/empty", &expect_fail, "i64=");
add_test("/visitor/opts/i64/val1/trailing", &expect_fail, "i64=5z");
add_test("/visitor/opts/i64/nonlist", &expect_fail, "i64x=5-6");
add_test("/visitor/opts/i64/val2/errno", &expect_fail,
"i64=0x7fffffffffffffff-0x8000000000000000");
add_test("/visitor/opts/i64/val2/empty", &expect_fail, "i64=5-");
add_test("/visitor/opts/i64/val2/trailing", &expect_fail, "i64=5-6z");
add_test("/visitor/opts/i64/range/empty", &expect_fail, "i64=6-5");
add_test("/visitor/opts/i64/range/minval", &expect_i64_min,
"i64=-0x8000000000000000--0x8000000000000000");
add_test("/visitor/opts/i64/range/maxval", &expect_i64_max,
"i64=0x7fffffffffffffff-0x7fffffffffffffff");
add_test("/visitor/opts/u64/val1/errno", &expect_fail, "u64=-1");
add_test("/visitor/opts/u64/val1/empty", &expect_fail, "u64=");
add_test("/visitor/opts/u64/val1/trailing", &expect_fail, "u64=5z");
add_test("/visitor/opts/u64/nonlist", &expect_fail, "u64x=5-6");
add_test("/visitor/opts/u64/val2/errno", &expect_fail,
"u64=0xffffffffffffffff-0x10000000000000000");
add_test("/visitor/opts/u64/val2/empty", &expect_fail, "u64=5-");
add_test("/visitor/opts/u64/val2/trailing", &expect_fail, "u64=5-6z");
add_test("/visitor/opts/u64/range/empty", &expect_fail, "u64=6-5");
add_test("/visitor/opts/u64/range/minval", &expect_zero, "u64=0-0");
add_test("/visitor/opts/u64/range/maxval", &expect_u64_max,
"u64=0xffffffffffffffff-0xffffffffffffffff");
/* Test maximum range sizes. The macro value is open-coded here
* *intentionally*; the test case must use concrete values by design. If
* OPTS_VISITOR_RANGE_MAX is changed, the following values need to be
* recalculated as well. The assert and this comment should help with it.
*/
g_assert(OPTS_VISITOR_RANGE_MAX == 65536);
/* The unsigned case is simple, a u64-u64 difference can always be
* represented as a u64.
*/
add_test("/visitor/opts/u64/range/max", &expect_ok, "u64=0-65535");
add_test("/visitor/opts/u64/range/2big", &expect_fail, "u64=0-65536");
/* The same cannot be said about an i64-i64 difference. */
add_test("/visitor/opts/i64/range/max/pos/a", &expect_ok,
"i64=0x7fffffffffff0000-0x7fffffffffffffff");
add_test("/visitor/opts/i64/range/max/pos/b", &expect_ok,
"i64=0x7ffffffffffeffff-0x7ffffffffffffffe");
add_test("/visitor/opts/i64/range/2big/pos", &expect_fail,
"i64=0x7ffffffffffeffff-0x7fffffffffffffff");
add_test("/visitor/opts/i64/range/max/neg/a", &expect_ok,
"i64=-0x8000000000000000--0x7fffffffffff0001");
add_test("/visitor/opts/i64/range/max/neg/b", &expect_ok,
"i64=-0x7fffffffffffffff--0x7fffffffffff0000");
add_test("/visitor/opts/i64/range/2big/neg", &expect_fail,
"i64=-0x8000000000000000--0x7fffffffffff0000");
add_test("/visitor/opts/i64/range/2big/full", &expect_fail,
"i64=-0x8000000000000000-0x7fffffffffffffff");
g_test_run();
return 0;
}