[libvirt PATCH v6 16/36] tests: add ability to test various nbdkit capabilities
Jonathon Jongsma
jjongsma at redhat.com
Thu Jul 20 22:19:43 UTC 2023
Add new DO_TEST_CAPS_LATEST_NBDKIT macro to test xml2argv for various
nbdkit capability scenarios.
Signed-off-by: Jonathon Jongsma <jjongsma at redhat.com>
Reviewed-by: Peter Krempa <pkrempa at redhat.com>
---
src/qemu/qemu_nbdkit.c | 20 +++++++++++++++++---
tests/qemuxml2argvtest.c | 11 +++++++++++
tests/testutilsqemu.c | 26 ++++++++++++++++++++++++++
tests/testutilsqemu.h | 4 ++++
4 files changed, 58 insertions(+), 3 deletions(-)
diff --git a/src/qemu/qemu_nbdkit.c b/src/qemu/qemu_nbdkit.c
index 7275d33419..a8988778ac 100644
--- a/src/qemu/qemu_nbdkit.c
+++ b/src/qemu/qemu_nbdkit.c
@@ -291,10 +291,16 @@ virNbkditCapsCheckModdir(const char *moddir,
static bool
virNbdkitCapsIsValid(void *data,
- void *privData G_GNUC_UNUSED)
+ void *privData)
{
qemuNbdkitCaps *nbdkitCaps = data;
struct stat st;
+ /* when run under test, we will use privData as a signal to indicate that
+ * we shouldn't touch the filesystem */
+ bool skipValidation = (privData != NULL);
+
+ if (skipValidation)
+ return true;
if (!nbdkitCaps->path)
return true;
@@ -335,9 +341,17 @@ virNbdkitCapsIsValid(void *data,
static void*
virNbdkitCapsNewData(const char *binary,
- void *privData G_GNUC_UNUSED)
+ void *privData)
{
- qemuNbdkitCaps *caps = qemuNbdkitCapsNew(binary);
+ /* when run under test, we will use privData as a signal to indicate that
+ * we shouldn't touch the filesystem */
+ bool skipNewData = (privData != NULL);
+ qemuNbdkitCaps *caps = NULL;
+
+ if (skipNewData)
+ return NULL;
+
+ caps = qemuNbdkitCapsNew(binary);
qemuNbdkitCapsQuery(caps);
return caps;
diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c
index 52d206d00f..d3dafb5bb5 100644
--- a/tests/qemuxml2argvtest.c
+++ b/tests/qemuxml2argvtest.c
@@ -613,6 +613,14 @@ testCompareXMLToArgv(const void *data)
if (qemuTestCapsCacheInsert(driver.qemuCapsCache, info->qemuCaps) < 0)
goto cleanup;
+ if (info->nbdkitCaps) {
+ if (virFileCacheInsertData(driver.nbdkitCapsCache, TEST_NBDKIT_PATH,
+ g_object_ref(info->nbdkitCaps)) < 0) {
+ g_object_unref(info->nbdkitCaps);
+ goto cleanup;
+ }
+ }
+
if (info->migrateFrom &&
!(migrateURI = qemuMigrationDstGetURI(info->migrateFrom,
info->migrateFd)))
@@ -833,6 +841,9 @@ mymain(void)
# define DO_TEST_CAPS_ARCH_VER(name, arch, ver) \
DO_TEST_CAPS_ARCH_VER_FULL(name, arch, ver, ARG_END)
+# define DO_TEST_CAPS_LATEST_NBDKIT(name, ...) \
+ DO_TEST_CAPS_ARCH_LATEST_FULL(name, "x86_64", ARG_NBDKIT_CAPS, __VA_ARGS__, QEMU_NBDKIT_CAPS_LAST, ARG_END)
+
# define DO_TEST_CAPS_LATEST(name) \
DO_TEST_CAPS_ARCH_LATEST(name, "x86_64")
diff --git a/tests/testutilsqemu.c b/tests/testutilsqemu.c
index 16b773a768..67923070e1 100644
--- a/tests/testutilsqemu.c
+++ b/tests/testutilsqemu.c
@@ -57,6 +57,10 @@ virFindFileInPath(const char *file)
return g_strdup_printf("/usr/bin/%s", file);
}
+ if (g_str_equal(file, "nbdkit")) {
+ return g_strdup(TEST_NBDKIT_PATH);
+ }
+
/* Nothing in tests should be relying on real files
* in host OS, so we return NULL to try to force
* an error in such a case
@@ -295,6 +299,7 @@ void qemuTestDriverFree(virQEMUDriver *driver)
virObjectUnref(driver->caps);
virObjectUnref(driver->config);
virObjectUnref(driver->securityManager);
+ g_clear_object(&driver->nbdkitCapsCache);
virCPUDefFree(cpuDefault);
virCPUDefFree(cpuHaswell);
@@ -494,6 +499,12 @@ int qemuTestDriverInit(virQEMUDriver *driver)
if (!driver->qemuCapsCache)
goto error;
+ driver->nbdkitCapsCache = qemuNbdkitCapsCacheNew("/dev/null");
+ /* the nbdkitCapsCache just interprets the presence of a non-null private
+ * data pointer as a signal to skip cache validation. This prevents the
+ * cache from trying to validate the plugindir mtime, etc during test */
+ virFileCacheSetPriv(driver->nbdkitCapsCache, GUINT_TO_POINTER(1));
+
driver->xmlopt = virQEMUDriverCreateXMLConf(driver, "none");
if (!driver->xmlopt)
goto error;
@@ -787,6 +798,14 @@ testQemuInfoSetArgs(struct testQemuInfo *info,
ignore_value(virBitmapSetBit(info->args.fakeCapsDel, flag));
break;
+ case ARG_NBDKIT_CAPS:
+ if (!(info->args.fakeNbdkitCaps))
+ info->args.fakeNbdkitCaps = virBitmapNew(QEMU_NBDKIT_CAPS_LAST);
+
+ while ((flag = va_arg(argptr, int)) < QEMU_NBDKIT_CAPS_LAST)
+ ignore_value(virBitmapSetBit(info->args.fakeNbdkitCaps, flag));
+ break;
+
case ARG_GIC:
info->args.gic = va_arg(argptr, int);
break;
@@ -1061,6 +1080,11 @@ testQemuInfoInitArgs(struct testQemuInfo *info)
for (cap = -1; (cap = virBitmapNextSetBit(info->args.fakeCapsDel, cap)) >= 0;)
virQEMUCapsClear(info->qemuCaps, cap);
+ info->nbdkitCaps = qemuNbdkitCapsNew(TEST_NBDKIT_PATH);
+
+ for (cap = -1; (cap = virBitmapNextSetBit(info->args.fakeNbdkitCaps, cap)) >= 0;)
+ qemuNbdkitCapsSet(info->nbdkitCaps, cap);
+
if (info->args.gic != GIC_NONE &&
testQemuCapsSetGIC(info->qemuCaps, info->args.gic) < 0)
return -1;
@@ -1079,6 +1103,8 @@ testQemuInfoClear(struct testQemuInfo *info)
g_clear_pointer(&info->args.fakeCapsAdd, virBitmapFree);
g_clear_pointer(&info->args.fakeCapsDel, virBitmapFree);
g_clear_pointer(&info->args.fds, g_hash_table_unref);
+ g_clear_object(&info->nbdkitCaps);
+ g_clear_pointer(&info->args.fakeNbdkitCaps, virBitmapFree);
}
diff --git a/tests/testutilsqemu.h b/tests/testutilsqemu.h
index e0d116336e..d0e0531929 100644
--- a/tests/testutilsqemu.h
+++ b/tests/testutilsqemu.h
@@ -28,6 +28,7 @@
# define TEST_TPM_ENV_VAR "VIR_TEST_MOCK_FAKE_TPM_VERSION"
# define TPM_VER_1_2 "1.2"
# define TPM_VER_2_0 "2.0"
+# define TEST_NBDKIT_PATH "/fakebindir/nbdkit"
enum {
GIC_NONE = 0,
@@ -49,6 +50,7 @@ typedef enum {
ARG_CAPS_VARIANT,
ARG_CAPS_HOST_CPU_MODEL,
ARG_FD_GROUP, /* name, nfds, fd[0], ... fd[n-1] */
+ ARG_NBDKIT_CAPS,
ARG_END,
} testQemuInfoArgName;
@@ -79,6 +81,7 @@ struct testQemuArgs {
bool newargs;
virBitmap *fakeCapsAdd;
virBitmap *fakeCapsDel;
+ virBitmap *fakeNbdkitCaps;
char *capsver;
char *capsarch;
const char *capsvariant;
@@ -94,6 +97,7 @@ struct testQemuInfo {
char *outfile;
char *errfile;
virQEMUCaps *qemuCaps;
+ qemuNbdkitCaps *nbdkitCaps;
const char *migrateFrom;
int migrateFd;
unsigned int flags;
--
2.41.0
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