tests: Use qemu:///embed to simplify fakerootdir management

Now that the QEMU driver natively supports storing all its runtime
data inside an arbitrary directory, we can avoid having multiple
copies of the same logic in the test suite.

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>

tests/qemumemlocktest.c

@@ -51,28 +51,14 @@ testCompareMemLock(const void *data)
     return ret;
 }
 
-# define FAKEROOTDIRTEMPLATE abs_builddir "/fakerootdir-XXXXXX"
-
 static int
 mymain(void)
 {
     int ret = 0;
-    char *fakerootdir;
     virQEMUCapsPtr qemuCaps = NULL;
 
-    fakerootdir = g_strdup(FAKEROOTDIRTEMPLATE);
-
-    if (!g_mkdtemp(fakerootdir)) {
-        fprintf(stderr, "Cannot create fakerootdir");
-        abort();
-    }
-
-    g_setenv("LIBVIRT_FAKE_ROOT_DIR", fakerootdir, TRUE);
-
-    if (qemuTestDriverInit(&driver) < 0) {
-        VIR_FREE(fakerootdir);
+    if (qemuTestDriverInit(&driver) < 0)
         return EXIT_FAILURE;
-    }
 
     driver.privileged = true;
 
@@ -150,11 +136,7 @@ mymain(void)
  cleanup:
     virObjectUnref(qemuCaps);
 
-    if (getenv("LIBVIRT_SKIP_CLEANUP") == NULL)
-        virFileDeleteTree(fakerootdir);
-
     qemuTestDriverFree(&driver);
-    VIR_FREE(fakerootdir);
 
     return ret == 0 ? EXIT_SUCCESS : EXIT_FAILURE;
 }