Re: [PATCH] qemuTestDriverInit: Don't access live data

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On Mon, Mar 06, 2017 at 08:38:00AM +0100, Michal Privoznik wrote:
Some of our tests (e.g. qemuhotplugtest) call
virDomainSaveConfig(). Now the problem is, qemuTestDriverInit()
creates a fake qemu driver and fills it with some fake
configuration. At least so we hoped. The truth is, it calls
regular virQEMUDriverConfigNew() and then fix couple of paths.
Literally. Therefore our tests see regular stateDir and configDir
for the user that is running the tests. Directories, where live
domain XMLs are stored. Let's just hope our test suite hasn't
mangled any of them.

Signed-off-by: Michal Privoznik <mprivozn@xxxxxxxxxx>
---
tests/testutilsqemu.c | 34 ++++++++++++++++++++++++++++++++++
1 file changed, 34 insertions(+)

diff --git a/tests/testutilsqemu.c b/tests/testutilsqemu.c
index 56a89c913..0726cd317 100644
--- a/tests/testutilsqemu.c
+++ b/tests/testutilsqemu.c
@@ -513,6 +513,10 @@ qemuTestParseCapabilities(virCapsPtr caps,
void qemuTestDriverFree(virQEMUDriver *driver)
{
    virMutexDestroy(&driver->lock);
+    if (driver->config) {
+        virFileDeleteTree(driver->config->stateDir);
+        virFileDeleteTree(driver->config->configDir);
+    }
    virQEMUCapsCacheFree(driver->qemuCapsCache);
    virObjectUnref(driver->xmlopt);
    virObjectUnref(driver->caps);
@@ -548,9 +552,14 @@ int qemuTestCapsCacheInsert(virQEMUCapsCachePtr cache, const char *binary,
    return ret;
}

+# define STATEDIRTEMPLATE abs_builddir "/qemustatedir-XXXXXX"
+# define CONFIGDIRTEMPLATE abs_builddir "/qemuconfigdir-XXXXXX"
+
int qemuTestDriverInit(virQEMUDriver *driver)
{
    virSecurityManagerPtr mgr = NULL;
+    char statedir[] = STATEDIRTEMPLATE;
+    char configdir[] = CONFIGDIRTEMPLATE;


There's no point in creating these variables, otherwise ACK.

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