1 files changed, 344 insertions, 0 deletions
diff --git a/tests/qtest/drive_del-test.c b/tests/qtest/drive_del-test.c
new file mode 100644
index 000000000..8d08ee999
--- /dev/null
+++ b/tests/qtest/drive_del-test.c
@@ -0,0 +1,344 @@
+/*
+ * blockdev.c test cases
+ *
+ * Copyright (C) 2013-2014 Red Hat Inc.
+ *
+ * Authors:
+ *  Stefan Hajnoczi <stefanha@redhat.com>
+ *
+ * This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
+ * See the COPYING.LIB file in the top-level directory.
+ */
+
+#include "qemu/osdep.h"
+#include "libqos/libqtest.h"
+#include "libqos/virtio.h"
+#include "qapi/qmp/qdict.h"
+#include "qapi/qmp/qlist.h"
+
+static bool look_for_drive0(QTestState *qts, const char *command, const char *key)
+{
+    QDict *response;
+    QList *ret;
+    QListEntry *entry;
+    bool found;
+
+    response = qtest_qmp(qts, "{'execute': %s}", command);
+    g_assert(response && qdict_haskey(response, "return"));
+    ret = qdict_get_qlist(response, "return");
+
+    found = false;
+    QLIST_FOREACH_ENTRY(ret, entry) {
+        QDict *entry_dict = qobject_to(QDict, entry->value);
+        if (!strcmp(qdict_get_str(entry_dict, key), "drive0")) {
+            found = true;
+            break;
+        }
+    }
+
+    qobject_unref(response);
+    return found;
+}
+
+static bool has_drive(QTestState *qts)
+{
+    return look_for_drive0(qts, "query-block", "device");
+}
+
+static bool has_blockdev(QTestState *qts)
+{
+    return look_for_drive0(qts, "query-named-block-nodes", "node-name");
+}
+
+static void blockdev_add_with_media(QTestState *qts)
+{
+    QDict *response;
+
+    response = qtest_qmp(qts,
+                         "{ 'execute': 'blockdev-add',"
+                         "  'arguments': {"
+                         "      'driver': 'raw',"
+                         "      'node-name': 'drive0',"
+                         "      'file': {"
+                         "          'driver': 'null-co',"
+                         "          'read-zeroes': true"
+                         "      }"
+                         "  }"
+                         "}");
+
+    g_assert(response);
+    g_assert(qdict_haskey(response, "return"));
+    qobject_unref(response);
+    g_assert(has_blockdev(qts));
+}
+
+static void drive_add(QTestState *qts)
+{
+    char *resp = qtest_hmp(qts, "drive_add 0 if=none,id=drive0");
+
+    g_assert_cmpstr(resp, ==, "OK\r\n");
+    g_assert(has_drive(qts));
+    g_free(resp);
+}
+
+static void drive_add_with_media(QTestState *qts)
+{
+    char *resp = qtest_hmp(qts,
+                           "drive_add 0 if=none,id=drive0,file=null-co://,"
+                           "file.read-zeroes=on,format=raw");
+
+    g_assert_cmpstr(resp, ==, "OK\r\n");
+    g_assert(has_drive(qts));
+    g_free(resp);
+}
+
+static void drive_del(QTestState *qts)
+{
+    char *resp;
+
+    g_assert(has_drive(qts));
+    resp = qtest_hmp(qts, "drive_del drive0");
+    g_assert_cmpstr(resp, ==, "");
+    g_assert(!has_drive(qts));
+    g_free(resp);
+}
+
+/*
+ * qvirtio_get_dev_type:
+ * Returns: the preferred virtio bus/device type for the current architecture.
+ * TODO: delete this
+ */
+static const char *qvirtio_get_dev_type(void)
+{
+    const char *arch = qtest_get_arch();
+
+    if (g_str_equal(arch, "arm") || g_str_equal(arch, "aarch64")) {
+        return "device";  /* for virtio-mmio */
+    } else if (g_str_equal(arch, "s390x")) {
+        return "ccw";
+    } else {
+        return "pci";
+    }
+}
+
+static void device_add(QTestState *qts)
+{
+    QDict *response;
+    char driver[32];
+    snprintf(driver, sizeof(driver), "virtio-blk-%s",
+             qvirtio_get_dev_type());
+
+    response = qtest_qmp(qts, "{'execute': 'device_add',"
+                              " 'arguments': {"
+                              "   'driver': %s,"
+                              "   'drive': 'drive0',"
+                              "   'id': 'dev0'"
+                              "}}", driver);
+    g_assert(response);
+    g_assert(qdict_haskey(response, "return"));
+    qobject_unref(response);
+}
+
+static void device_del(QTestState *qts, bool and_reset)
+{
+    QDict *response;
+
+    response = qtest_qmp(qts, "{'execute': 'device_del',"
+                         " 'arguments': { 'id': 'dev0' } }");
+    g_assert(response);
+    g_assert(qdict_haskey(response, "return"));
+    qobject_unref(response);
+
+    if (and_reset) {
+        response = qtest_qmp(qts, "{'execute': 'system_reset' }");
+        g_assert(response);
+        g_assert(qdict_haskey(response, "return"));
+        qobject_unref(response);
+    }
+
+    qtest_qmp_eventwait(qts, "DEVICE_DELETED");
+}
+
+static void test_drive_without_dev(void)
+{
+    QTestState *qts;
+
+    /* Start with an empty drive */
+    qts = qtest_init("-drive if=none,id=drive0");
+
+    /* Delete the drive */
+    drive_del(qts);
+
+    /* Ensure re-adding the drive works - there should be no duplicate ID error
+     * because the old drive must be gone.
+     */
+    drive_add(qts);
+
+    qtest_quit(qts);
+}
+
+static void test_after_failed_device_add(void)
+{
+    char driver[32];
+    QDict *response;
+    QTestState *qts;
+
+    snprintf(driver, sizeof(driver), "virtio-blk-%s",
+             qvirtio_get_dev_type());
+
+    qts = qtest_init("-drive if=none,id=drive0");
+
+    /* Make device_add fail. If this leaks the virtio-blk device then a
+     * reference to drive0 will also be held (via qdev properties).
+     */
+    response = qtest_qmp(qts, "{'execute': 'device_add',"
+                              " 'arguments': {"
+                              "   'driver': %s,"
+                              "   'drive': 'drive0'"
+                              "}}", driver);
+    g_assert(response);
+    qmp_expect_error_and_unref(response, "GenericError");
+
+    /* Delete the drive */
+    drive_del(qts);
+
+    /* Try to re-add the drive.  This fails with duplicate IDs if a leaked
+     * virtio-blk device exists that holds a reference to the old drive0.
+     */
+    drive_add(qts);
+
+    qtest_quit(qts);
+}
+
+static void test_drive_del_device_del(void)
+{
+    QTestState *qts;
+
+    /* Start with a drive used by a device that unplugs instantaneously */
+    qts = qtest_initf("-drive if=none,id=drive0,file=null-co://,"
+                      "file.read-zeroes=on,format=raw"
+                      " -device virtio-scsi-%s"
+                      " -device scsi-hd,drive=drive0,id=dev0",
+                      qvirtio_get_dev_type());
+
+    /*
+     * Delete the drive, and then the device
+     * Doing it in this order takes notoriously tricky special paths
+     */
+    drive_del(qts);
+    device_del(qts, false);
+    g_assert(!has_drive(qts));
+
+    qtest_quit(qts);
+}
+
+static void test_cli_device_del(void)
+{
+    QTestState *qts;
+
+    /*
+     * -drive/-device and device_del.  Start with a drive used by a
+     * device that unplugs after reset.
+     */
+    qts = qtest_initf("-drive if=none,id=drive0,file=null-co://,"
+                      "file.read-zeroes=on,format=raw"
+                      " -device virtio-blk-%s,drive=drive0,id=dev0",
+                      qvirtio_get_dev_type());
+
+    device_del(qts, true);
+    g_assert(!has_drive(qts));
+
+    qtest_quit(qts);
+}
+
+static void test_empty_device_del(void)
+{
+    QTestState *qts;
+
+    /* device_del with no drive plugged.  */
+    qts = qtest_initf("-device virtio-scsi-%s -device scsi-cd,id=dev0",
+                      qvirtio_get_dev_type());
+
+    device_del(qts, false);
+    qtest_quit(qts);
+}
+
+static void test_device_add_and_del(void)
+{
+    QTestState *qts;
+
+    /*
+     * -drive/device_add and device_del.  Start with a drive used by a
+     * device that unplugs after reset.
+     */
+    qts = qtest_init("-drive if=none,id=drive0,file=null-co://,"
+                     "file.read-zeroes=on,format=raw");
+
+    device_add(qts);
+    device_del(qts, true);
+    g_assert(!has_drive(qts));
+
+    qtest_quit(qts);
+}
+
+static void test_drive_add_device_add_and_del(void)
+{
+    QTestState *qts;
+
+    qts = qtest_init("");
+
+    /*
+     * drive_add/device_add and device_del.  The drive is used by a
+     * device that unplugs after reset.
+     */
+    drive_add_with_media(qts);
+    device_add(qts);
+    device_del(qts, true);
+    g_assert(!has_drive(qts));
+
+    qtest_quit(qts);
+}
+
+static void test_blockdev_add_device_add_and_del(void)
+{
+    QTestState *qts;
+
+    qts = qtest_init("");
+
+    /*
+     * blockdev_add/device_add and device_del.  The it drive is used by a
+     * device that unplugs after reset, but it doesn't go away.
+     */
+    blockdev_add_with_media(qts);
+    device_add(qts);
+    device_del(qts, true);
+    g_assert(has_blockdev(qts));
+
+    qtest_quit(qts);
+}
+
+int main(int argc, char **argv)
+{
+    g_test_init(&argc, &argv, NULL);
+
+    qtest_add_func("/drive_del/without-dev", test_drive_without_dev);
+
+    if (qvirtio_get_dev_type() != NULL) {
+        qtest_add_func("/drive_del/after_failed_device_add",
+                       test_after_failed_device_add);
+        qtest_add_func("/drive_del/drive_del_device_del",
+                       test_drive_del_device_del);
+        qtest_add_func("/device_del/drive/cli_device",
+                       test_cli_device_del);
+        qtest_add_func("/device_del/drive/device_add",
+                       test_device_add_and_del);
+        qtest_add_func("/device_del/drive/drive_add_device_add",
+                       test_drive_add_device_add_and_del);
+        qtest_add_func("/device_del/empty",
+                       test_empty_device_del);
+        qtest_add_func("/device_del/blockdev",
+                       test_blockdev_add_device_add_and_del);
+    }
+
+    return g_test_run();
+}