Add test case for loading driver modules

To ensure all symbols used by loadable driver modules are
exported in libvirt.so, add a test suite that simply loads
each driver in turn

* tests/Makefile.am, tests/virdrivermoduletest.c: Add
  a test case for loading drivers

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>

tests/Makefile.am

@@ -93,6 +93,10 @@ test_programs = virshtest sockettest \
 	virtimetest viruritest virkeyfiletest \
 	virauthconfigtest
 
+if WITH_DRIVER_MODULES
+test_programs += virdrivermoduletest
+endif
+
 # This is a fake SSH we use from virnetsockettest
 ssh_SOURCES = ssh.c
 ssh_LDADD = $(COVERAGE_LDFLAGS)
@@ -520,6 +524,13 @@ utiltest_SOURCES = \
 	utiltest.c testutils.h testutils.c
 utiltest_LDADD = $(LDADDS)
 
+if WITH_DRIVER_MODULES
+virdrivermoduletest_SOURCES = \
+	virdrivermoduletest.c testutils.h testutils.c
+virdrivermoduletest_CFLAGS = -Dabs_builddir="\"$(abs_builddir)\"" $(AM_CFLAGS)
+virdrivermoduletest_LDADD = $(LDADDS)
+endif
+
 if WITH_LIBVIRTD
 eventtest_SOURCES = \
 	eventtest.c testutils.h testutils.c

tests/virdrivermoduletest.c

@@ -0,0 +1,104 @@
+/*
+ * Copyright (C) 2012 Red Hat, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
+ *
+ * Author: Daniel P. Berrange <berrange@redhat.com>
+ */
+
+#include <config.h>
+
+#include "testutils.h"
+#include "util.h"
+#include "virterror_internal.h"
+#include "memory.h"
+#include "logging.h"
+#include "driver.h"
+
+#define VIR_FROM_THIS VIR_FROM_NONE
+
+struct testDriverData {
+    const char *name;
+    const char *dep1;
+};
+
+
+static int testDriverModule(const void *args)
+{
+    const struct testDriverData *data = args;
+
+    if (data->dep1 &&
+        !virDriverLoadModule(data->dep1))
+        return -1;
+
+    if (!virDriverLoadModule(data->name))
+        return -1;
+
+    return 0;
+}
+
+
+static int
+mymain(void)
+{
+    int ret = 0;
+
+#define TEST(name, dep1)                                                \
+    do  {                                                               \
+        const struct testDriverData data = { name, dep1 };              \
+        if (virtTestRun("Test driver " # name,  1, testDriverModule, &data) < 0) \
+            ret = -1;                                                   \
+    } while (0)
+
+    virDriverModuleInitialize(abs_builddir "/../src/.libs");
+
+#ifdef WITH_NETWORK
+    TEST("network", NULL);
+#endif
+#ifdef WITH_STORAGE
+    TEST("storage", NULL);
+#endif
+#ifdef WITH_NODE_DEVICES
+    TEST("nodedev", NULL);
+#endif
+#ifdef WITH_SECRETS
+    TEST("secret", NULL);
+#endif
+#ifdef WITH_NWFILTER
+    TEST("nwfilter", NULL);
+#endif
+#ifdef WITH_INTERFACE
+    TEST("interface", NULL);
+#endif
+#ifdef WITH_QEMU
+    TEST("qemu", "network");
+#endif
+#ifdef WITH_LXC
+    TEST("lxc", "network");
+#endif
+#ifdef WITH_UML
+    TEST("uml", NULL);
+#endif
+#ifdef WITH_XEN
+    TEST("xen", NULL);
+#endif
+#ifdef WITH_LIBXL
+    TEST("libxl", NULL);
+#endif
+
+    return ret==0 ? EXIT_SUCCESS : EXIT_FAILURE;
+}
+
+VIRT_TEST_MAIN(mymain)