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qemuxml2argvtest: Extract setup/parse step

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Extract the common setup and parsing of the input XML into a separate
helper testQemuConfXMLCommon(). The helper has semantics which will
allow us to call it from multiple places so that VIR_TEST_RANGE will
still work properly even when we'll add multiple steps reusing the
prepared data.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
This commit is contained in:
Peter Krempa 2023-12-16 16:30:57 +01:00
parent 002daa184d
commit 75f7105f5c
2 changed files with 137 additions and 46 deletions
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177
tests/qemuxml2argvtest.c
View File

@ -599,23 +599,37 @@ testInfoCheckDuplicate(testQemuInfo *info)
}
static int
testCompareXMLToArgv(const void *data)
/**
* testQemuConfXMLCommon: Prepare common test data (e.g. parse input XML)
* for a test case.
*
* @info: test info struct to prepare
* @rv: return value that the caller is supposed to return (see below)
*
* Since some of the prepared data is reused by multiple tests, which can be
* potentially skipped via 'VIR_TEST_RANGE', this function is designed to be
* callable multiple times but processes data just once.
*
* Returns 'true' if subsequent tests are expected to run (input XML was parsed
* properly and test is not expected to fail on parse error). Otherwise 'false'
* is returned and rv is populated according to the following logic:
* 1) expected failure of parsing (FLAG_EXPECT_PARSE_ERROR)
* - first invocation sets @rv to 0
* - other invocations set rv to EXIT_AM_SKIP
* 2) unexpected error
* - all invocations return -1
* - first invocation reports actual error
* - other invocations report replacement error
*/
static bool
testQemuConfXMLCommon(testQemuInfo *info,
int *rv)
{
testQemuInfo *info = (void *) data;
g_autofree char *migrateURI = NULL;
g_auto(virBuffer) actualBuf = VIR_BUFFER_INITIALIZER;
g_autofree char *actualargv = NULL;
unsigned int flags = info->flags;
unsigned int parseFlags = info->parseFlags;
int ret = -1;
virDomainObj *vm = NULL;
virDomainChrSourceDef monitor_chr = { 0 };
virError *err = NULL;
g_autofree char *log = NULL;
g_autoptr(virCommand) cmd = NULL;
qemuDomainObjPrivate *priv = NULL;
g_autoptr(virIdentity) sysident = virIdentityGetSystem();
g_autoptr(virDomainDef) def = NULL;
/* initialize a test just once */
if (info->prepared)
goto cleanup;
/* mark test case as used */
ignore_value(g_hash_table_remove(info->conf->existingTestCases, info->infile));
@ -630,7 +644,8 @@ testCompareXMLToArgv(const void *data)
/* when compiled without nbdkit support we want to skip the test after
* marking it as used */
if (info->args.fakeNbdkitCaps) {
ret = EXIT_AM_SKIP;
info->prep_skip = true;
info->prepared = true;
goto cleanup;
}
# endif /* !WITH_NBDKIT */
@ -645,9 +660,6 @@ testCompareXMLToArgv(const void *data)
testUpdateQEMUCapsHostCPUModel(info->qemuCaps, driver.hostarch);
}
if (virIdentitySetCurrent(sysident) < 0)
goto cleanup;
if (testCheckExclusiveFlags(info->flags) < 0)
goto cleanup;
@ -656,6 +668,94 @@ testCompareXMLToArgv(const void *data)
if (qemuTestCapsCacheInsert(driver.qemuCapsCache, info->qemuCaps) < 0)
goto cleanup;
if (!virFileExists(info->infile)) {
virReportError(VIR_ERR_INTERNAL_ERROR,
"Input file '%s' not found", info->infile);
goto cleanup;
}
if (!(def = virDomainDefParseFile(info->infile, driver.xmlopt, NULL,
info->parseFlags | VIR_DOMAIN_DEF_PARSE_INACTIVE))) {
virError *err = virGetLastError();
if (!err) {
VIR_TEST_DEBUG("no error was reported for expected parse error");
goto cleanup;
}
if (info->flags & FLAG_EXPECT_PARSE_ERROR) {
g_autofree char *tmperr = g_strdup_printf("%s\n", NULLSTR(err->message));
if (virTestCompareToFile(tmperr, info->errfile) >= 0) {
info->prep_skip = true;
}
}
goto cleanup;
}
if (info->flags & FLAG_EXPECT_PARSE_ERROR) {
VIR_TEST_DEBUG("passed instead of expected parse error");
goto cleanup;
}
info->def = g_steal_pointer(&def);
cleanup:
/* definition is present and correct, return true to signal that caller can continue */
if (info->def) {
info->prepared = true;
return true;
}
/* definition is not present, but failure was expected */
if (info->prep_skip) {
/* first time we report success, any subsequent time EXIT_AM_SKIP */
if (!info->prepared)
*rv = 0;
else
*rv = EXIT_AM_SKIP;
} else {
/* any other failure always results in error in all invocations
* so that the user will see all the failures in the final error
* message which is suggesting a VIR_TEST_RANGE-limited run for
* debugging. */
*rv = -1;
/* report replacement error on subsequent runs */
if (!info->prepared)
VIR_TEST_VERBOSE("error from testQemuConfXMLCommon() was reported in the first invocation");
}
info->prepared = true;
/* caller is not expected to run tests */
return false;
}
static int
testCompareXMLToArgv(const void *data)
{
testQemuInfo *info = (void *) data;
g_autofree char *migrateURI = NULL;
g_auto(virBuffer) actualBuf = VIR_BUFFER_INITIALIZER;
g_autofree char *actualargv = NULL;
unsigned int flags = info->flags;
int ret = -1;
virDomainObj *vm = NULL;
virDomainChrSourceDef monitor_chr = { 0 };
virError *err = NULL;
g_autofree char *log = NULL;
g_autoptr(virCommand) cmd = NULL;
qemuDomainObjPrivate *priv = NULL;
g_autoptr(virIdentity) sysident = virIdentityGetSystem();
int rc = 0;
if (!testQemuConfXMLCommon(info, &rc))
return rc;
if (virIdentitySetCurrent(sysident) < 0)
goto cleanup;
if (info->nbdkitCaps) {
if (virFileCacheInsertData(driver.nbdkitCapsCache, TEST_NBDKIT_PATH,
g_object_ref(info->nbdkitCaps)) < 0) {
@ -672,31 +772,7 @@ testCompareXMLToArgv(const void *data)
if (!(vm = virDomainObjNew(driver.xmlopt)))
goto cleanup;
if (!virFileExists(info->infile)) {
virReportError(VIR_ERR_INTERNAL_ERROR,
"Input file '%s' not found", info->infile);
goto cleanup;
}
parseFlags |= VIR_DOMAIN_DEF_PARSE_INACTIVE;
if (!(vm->def = virDomainDefParseFile(info->infile, driver.xmlopt, NULL, parseFlags))) {
err = virGetLastError();
if (!err) {
VIR_TEST_DEBUG("no error was reported for expected parse error");
goto cleanup;
}
if (flags & FLAG_EXPECT_PARSE_ERROR) {
g_autofree char *tmperr = g_strdup_printf("%s\n", NULLSTR(err->message));
if (virTestCompareToFile(tmperr, info->errfile) >= 0)
goto ok;
}
goto cleanup;
}
if (flags & FLAG_EXPECT_PARSE_ERROR) {
VIR_TEST_DEBUG("passed instead of expected parse error");
goto cleanup;
}
vm->def = info->def;
priv = vm->privateData;
if (info->args.fds) {
@ -770,7 +846,10 @@ testCompareXMLToArgv(const void *data)
if (info->args.capsHostCPUModel)
qemuTestSetHostCPU(&driver, driver.hostarch, NULL);
virDomainChrSourceDefClear(&monitor_chr);
virObjectUnref(vm);
if (vm) {
vm->def = NULL;
virObjectUnref(vm);
}
virIdentitySetCurrent(NULL);
if (info->arch != VIR_ARCH_NONE && info->arch != VIR_ARCH_X86_64)
qemuTestSetHostArch(&driver, VIR_ARCH_NONE);
@ -848,6 +927,12 @@ testRun(const char *name,
info->errfile = g_strdup_printf("%s/qemuxml2argvdata/%s%s.err", abs_srcdir, info->name, suffix);
virTestRunLog(ret, testname, testCompareXMLToArgv, info);
/* clear overriden host cpu */
if (info->args.capsHostCPUModel)
qemuTestSetHostCPU(&driver, driver.hostarch, NULL);
if (info->arch != VIR_ARCH_NONE && info->arch != VIR_ARCH_X86_64)
qemuTestSetHostArch(&driver, VIR_ARCH_NONE);
}

6
tests/testutilsqemu.h
View File

@ -112,6 +112,12 @@ struct _testQemuInfo {
virArch arch;
GHashTable *qmpSchema; /* borrowed pointer from the cache */
/* Some tests have a common prepare step for multiple cases, but
* the common setup needs to be invoked with each virTestRun to facilitate
* test skipping */
bool prepared;
bool prep_skip;
struct testQemuArgs args;
struct testQemuConf *conf;
};