tests: Add virresctrltest

This test initializes capabilities from vircaps2xmldata (since it exists there
already) and then requests list of free bitmaps (all unallocated space) from
virresctrl.c

Desirable outputs are saved in virresctrldata.

Signed-off-by: Martin Kletzander <mkletzan@redhat.com>

tests/Makefile.am

@@ -165,6 +165,7 @@ EXTRA_DIST = \
 	xml2vmxdata \
 	virstorageutildata \
 	virfilecachedata \
+	virresctrldata \
 	$(NULL)
 
 test_helpers = commandhelper ssh
@@ -232,6 +233,7 @@ if WITH_LINUX
 test_programs += fchosttest
 test_programs += scsihosttest
 test_programs += vircaps2xmltest
+test_programs += virresctrltest
 test_libraries += virusbmock.la \
 	virnetdevbandwidthmock.la \
 	virnumamock.la \
@@ -1165,8 +1167,13 @@ virnumamock_la_SOURCES = \
 virnumamock_la_LDFLAGS = $(MOCKLIBS_LDFLAGS)
 virnumamock_la_LIBADD = $(MOCKLIBS_LIBS)
 
+virresctrltest_SOURCES = \
+	virresctrltest.c testutils.h testutils.c virfilewrapper.h virfilewrapper.c
+virresctrltest_LDADD = $(LDADDS)
+
 else ! WITH_LINUX
-EXTRA_DIST += vircaps2xmltest.c virnumamock.c virfilewrapper.c virfilewrapper.h
+EXTRA_DIST += vircaps2xmltest.c virnumamock.c virfilewrapper.c \
+			  virfilewrapper.h virresctrltest.c
 endif ! WITH_LINUX
 
 if WITH_NSS

tests/virresctrldata/resctrl-cdp.schemata

@@ -0,0 +1,2 @@
+L3CODE:0=00ffc;1=0ff00
+L3DATA:0=00000;1=03fff

tests/virresctrldata/resctrl-skx-twocaches.schemata

@@ -0,0 +1 @@
+L3:0=001;1=400

tests/virresctrldata/resctrl-skx.schemata

@@ -0,0 +1 @@
+L3:0=70f

tests/virresctrldata/resctrl.schemata

@@ -0,0 +1 @@
+L3:0=000ff;1=000f0

tests/virresctrltest.c

@@ -0,0 +1,102 @@
+#include <config.h>
+#include <stdlib.h>
+
+#include "testutils.h"
+#include "virfilewrapper.h"
+#include "virresctrlpriv.h"
+
+
+#define VIR_FROM_THIS VIR_FROM_NONE
+
+struct virResctrlData {
+    const char *filename;
+    bool fail;
+};
+
+
+static int
+test_virResctrlGetUnused(const void *opaque)
+{
+    struct virResctrlData *data = (struct virResctrlData *) opaque;
+    char *system_dir = NULL;
+    char *resctrl_dir = NULL;
+    int ret = -1;
+    virResctrlAllocPtr alloc = NULL;
+    char *schemata_str = NULL;
+    char *schemata_file;
+    virCapsPtr caps = NULL;
+
+    if (virAsprintf(&system_dir, "%s/vircaps2xmldata/linux-%s/system",
+                    abs_srcdir, data->filename) < 0)
+        goto cleanup;
+
+    if (virAsprintf(&resctrl_dir, "%s/vircaps2xmldata/linux-%s/resctrl",
+                    abs_srcdir, data->filename) < 0)
+        goto cleanup;
+
+    if (virAsprintf(&schemata_file, "%s/virresctrldata/%s.schemata",
+                    abs_srcdir, data->filename) < 0)
+        goto cleanup;
+
+    virFileWrapperAddPrefix("/sys/devices/system", system_dir);
+    virFileWrapperAddPrefix("/sys/fs/resctrl", resctrl_dir);
+
+    caps = virCapabilitiesNew(VIR_ARCH_X86_64, false, false);
+    if (!caps || virCapabilitiesInitCaches(caps) < 0) {
+        fprintf(stderr, "Could not initialize capabilities");
+        goto cleanup;
+    }
+
+    alloc = virResctrlAllocGetUnused(caps->host.resctrl);
+
+    virFileWrapperClearPrefixes();
+
+    if (!alloc) {
+        if (data->fail)
+            ret = 0;
+        goto cleanup;
+    } else if (data->fail) {
+        VIR_TEST_DEBUG("Error expected but there wasn't any.\n");
+        ret = -1;
+        goto cleanup;
+    }
+
+    schemata_str = virResctrlAllocFormat(alloc);
+
+    if (virTestCompareToFile(schemata_str, schemata_file) < 0)
+        goto cleanup;
+
+    ret = 0;
+ cleanup:
+    virObjectUnref(caps);
+    virObjectUnref(alloc);
+    VIR_FREE(system_dir);
+    VIR_FREE(resctrl_dir);
+    VIR_FREE(schemata_str);
+    VIR_FREE(schemata_file);
+    return ret;
+}
+
+
+static int
+mymain(void)
+{
+    struct virResctrlData data = {0};
+    int ret = 0;
+
+#define DO_TEST_UNUSED(_filename) \
+    do { \
+        data = (struct virResctrlData) { .filename = _filename }; \
+        if (virTestRun("Free: " _filename, test_virResctrlGetUnused, &data) < 0) \
+            ret = -1; \
+    } while (0)
+
+    DO_TEST_UNUSED("resctrl");
+    DO_TEST_UNUSED("resctrl-cdp");
+    DO_TEST_UNUSED("resctrl-skx");
+    DO_TEST_UNUSED("resctrl-skx-twocaches");
+
+    return ret;
+}
+
+VIR_TEST_MAIN(mymain)