libqtest: Remove qtest_qmp_discard_response() & friends

qtest_qmp_discard_response(...) is shorthand for
qobject_unref(qtest_qmp(...), except it's not actually shorter.
Moreover, the presence of these functions encourage sloppy testing.
Remove them from libqtest.  Add them as macros to the tests that use
them, with a TODO comment asking for cleanup.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20180806065344.7103-5-armbru@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>

tests/ahci-test.c

@@ -37,6 +37,9 @@
 #include "hw/pci/pci_ids.h"
 #include "hw/pci/pci_regs.h"
 
+/* TODO actually test the results and get rid of this */
+#define qmp_discard_response(...) qobject_unref(qmp(__VA_ARGS__))
+
 /* Test images sizes in MB */
 #define TEST_IMAGE_SIZE_MB_LARGE (200 * 1024)
 #define TEST_IMAGE_SIZE_MB_SMALL 64

tests/boot-order-test.c

@@ -13,9 +13,12 @@
 #include "qemu/osdep.h"
 #include "libqos/fw_cfg.h"
 #include "libqtest.h"
-
+#include "qapi/qmp/qdict.h"
 #include "hw/nvram/fw_cfg_keys.h"
 
+/* TODO actually test the results and get rid of this */
+#define qmp_discard_response(...) qobject_unref(qmp(__VA_ARGS__))
+
 typedef struct {
     const char *args;
     uint64_t expected_boot;

tests/drive_del-test.c

@@ -15,6 +15,9 @@
 #include "libqos/virtio.h"
 #include "qapi/qmp/qdict.h"
 
+/* TODO actually test the results and get rid of this */
+#define qmp_discard_response(...) qobject_unref(qmp(__VA_ARGS__))
+
 static void drive_add(void)
 {
     char *resp = hmp("drive_add 0 if=none,id=drive0");

tests/fdc-test.c

@@ -26,8 +26,12 @@
 
 
 #include "libqtest.h"
+#include "qapi/qmp/qdict.h"
 #include "qemu-common.h"
 
+/* TODO actually test the results and get rid of this */
+#define qmp_discard_response(...) qobject_unref(qmp(__VA_ARGS__))
+
 #define TEST_IMAGE_SIZE 1440 * 1024
 
 #define FLOPPY_BASE 0x3f0

tests/ide-test.c

@@ -29,12 +29,15 @@
 #include "libqos/libqos.h"
 #include "libqos/pci-pc.h"
 #include "libqos/malloc-pc.h"
-
+#include "qapi/qmp/qdict.h"
 #include "qemu-common.h"
 #include "qemu/bswap.h"
 #include "hw/pci/pci_ids.h"
 #include "hw/pci/pci_regs.h"
 
+/* TODO actually test the results and get rid of this */
+#define qmp_discard_response(...) qobject_unref(qmp(__VA_ARGS__))
+
 #define TEST_IMAGE_SIZE 64 * 1024 * 1024
 
 #define IDE_PCI_DEV     1

tests/libqtest.c

@@ -254,7 +254,7 @@ QTestState *qtest_init(const char *extra_args)
     /* Read the QMP greeting and then do the handshake */
     greeting = qtest_qmp_receive(s);
     qobject_unref(greeting);
-    qtest_qmp_discard_response(s, "{ 'execute': 'qmp_capabilities' }");
+    qobject_unref(qtest_qmp(s, "{ 'execute': 'qmp_capabilities' }"));
 
     return s;
 }
@@ -591,23 +591,6 @@ void qtest_qmp_send(QTestState *s, const char *fmt, ...)
     va_end(ap);
 }
 
-void qtest_qmpv_discard_response(QTestState *s, const char *fmt, va_list ap)
-{
-    QDict *response = qtest_qmpv(s, fmt, ap);
-    qobject_unref(response);
-}
-
-void qtest_qmp_discard_response(QTestState *s, const char *fmt, ...)
-{
-    va_list ap;
-    QDict *response;
-
-    va_start(ap, fmt);
-    response = qtest_qmpv(s, fmt, ap);
-    va_end(ap);
-    qobject_unref(response);
-}
-
 QDict *qtest_qmp_eventwait_ref(QTestState *s, const char *event)
 {
     QDict *response;
@@ -979,14 +962,6 @@ void qmp_send(const char *fmt, ...)
     va_end(ap);
 }
 
-void qmp_discard_response(const char *fmt, ...)
-{
-    va_list ap;
-
-    va_start(ap, fmt);
-    qtest_qmpv_discard_response(global_qtest, fmt, ap);
-    va_end(ap);
-}
 char *hmp(const char *fmt, ...)
 {
     va_list ap;

tests/libqtest.h

@@ -73,15 +73,6 @@ QTestState *qtest_init_without_qmp_handshake(bool use_oob,
  */
 void qtest_quit(QTestState *s);
 
-/**
- * qtest_qmp_discard_response:
- * @s: #QTestState instance to operate on.
- * @fmt...: QMP message to send to qemu
- *
- * Sends a QMP message to QEMU and consumes the response.
- */
-void qtest_qmp_discard_response(QTestState *s, const char *fmt, ...);
-
 /**
  * qtest_qmp:
  * @s: #QTestState instance to operate on.
@@ -100,16 +91,6 @@ QDict *qtest_qmp(QTestState *s, const char *fmt, ...);
  */
 void qtest_qmp_send(QTestState *s, const char *fmt, ...);
 
-/**
- * qtest_qmpv_discard_response:
- * @s: #QTestState instance to operate on.
- * @fmt: QMP message to send to QEMU
- * @ap: QMP message arguments
- *
- * Sends a QMP message to QEMU and consumes the response.
- */
-void qtest_qmpv_discard_response(QTestState *s, const char *fmt, va_list ap);
-
 /**
  * qtest_qmpv:
  * @s: #QTestState instance to operate on.
@@ -575,14 +556,6 @@ QDict *qmp(const char *fmt, ...);
  */
 void qmp_send(const char *fmt, ...);
 
-/**
- * qmp_discard_response:
- * @fmt...: QMP message to send to qemu
- *
- * Sends a QMP message to QEMU and consumes the response.
- */
-void qmp_discard_response(const char *fmt, ...);
-
 /**
  * qmp_receive:
  *

tests/migration-test.c

@@ -20,6 +20,9 @@
 #include "chardev/char.h"
 #include "sysemu/sysemu.h"
 
+/* TODO actually test the results and get rid of this */
+#define qtest_qmp_discard_response(...) qobject_unref(qtest_qmp(__VA_ARGS__))
+
 const unsigned start_address = 1024 * 1024;
 const unsigned end_address = 100 * 1024 * 1024;
 bool got_stop;

tests/test-filter-mirror.c

@@ -10,11 +10,15 @@
 
 #include "qemu/osdep.h"
 #include "libqtest.h"
+#include "qapi/qmp/qdict.h"
 #include "qemu/iov.h"
 #include "qemu/sockets.h"
 #include "qemu/error-report.h"
 #include "qemu/main-loop.h"
 
+/* TODO actually test the results and get rid of this */
+#define qmp_discard_response(...) qobject_unref(qmp(__VA_ARGS__))
+
 static void test_mirror(void)
 {
     int send_sock[2], recv_sock;

tests/test-filter-redirector.c

@@ -52,11 +52,15 @@
 
 #include "qemu/osdep.h"
 #include "libqtest.h"
+#include "qapi/qmp/qdict.h"
 #include "qemu/iov.h"
 #include "qemu/sockets.h"
 #include "qemu/error-report.h"
 #include "qemu/main-loop.h"
 
+/* TODO actually test the results and get rid of this */
+#define qmp_discard_response(...) qobject_unref(qmp(__VA_ARGS__))
+
 static const char *get_devstr(void)
 {
     if (g_str_equal(qtest_get_arch(), "s390x")) {

tests/virtio-blk-test.c

@@ -16,6 +16,7 @@
 #include "libqos/virtio-pci.h"
 #include "libqos/virtio-mmio.h"
 #include "libqos/malloc-generic.h"
+#include "qapi/qmp/qdict.h"
 #include "qemu/bswap.h"
 #include "standard-headers/linux/virtio_ids.h"
 #include "standard-headers/linux/virtio_config.h"
@@ -23,6 +24,9 @@
 #include "standard-headers/linux/virtio_blk.h"
 #include "standard-headers/linux/virtio_pci.h"
 
+/* TODO actually test the results and get rid of this */
+#define qmp_discard_response(...) qobject_unref(qmp(__VA_ARGS__))
+
 #define TEST_IMAGE_SIZE         (64 * 1024 * 1024)
 #define QVIRTIO_BLK_TIMEOUT_US  (30 * 1000 * 1000)
 #define PCI_SLOT_HP             0x06