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[PATCH v2 1/6] tests/qtest: replace qmp_discard_response with qtest_qmp_


From: Daniel P . Berrangé
Subject: [PATCH v2 1/6] tests/qtest: replace qmp_discard_response with qtest_qmp_assert_success
Date: Fri, 21 Apr 2023 18:14:06 +0100

The qmp_discard_response method simply ignores the result of the QMP
command, merely unref'ing the object. This is a bad idea for tests
as it leaves no trace if the QMP command unexpectedly failed. The
qtest_qmp_assert_success method will validate that the QMP command
returned without error, and if errors occur, it will print a message
on the console aiding debugging.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
---
 tests/qtest/ahci-test.c              | 31 ++++++++++++++--------------
 tests/qtest/boot-order-test.c        |  5 +----
 tests/qtest/fdc-test.c               | 15 +++++++-------
 tests/qtest/ide-test.c               |  5 +----
 tests/qtest/migration-test.c         |  5 +----
 tests/qtest/test-filter-mirror.c     |  5 +----
 tests/qtest/test-filter-redirector.c |  7 ++-----
 tests/qtest/virtio-blk-test.c        | 24 ++++++++++-----------
 8 files changed, 40 insertions(+), 57 deletions(-)

diff --git a/tests/qtest/ahci-test.c b/tests/qtest/ahci-test.c
index 1967cd5898..abab761c26 100644
--- a/tests/qtest/ahci-test.c
+++ b/tests/qtest/ahci-test.c
@@ -36,9 +36,6 @@
 #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(s, ...) qobject_unref(qtest_qmp(s, __VA_ARGS__))
-
 /* Test images sizes in MB */
 #define TEST_IMAGE_SIZE_MB_LARGE (200 * 1024)
 #define TEST_IMAGE_SIZE_MB_SMALL 64
@@ -1595,9 +1592,9 @@ static void test_atapi_tray(void)
     rsp = qtest_qmp_receive(ahci->parent->qts);
     qobject_unref(rsp);
 
-    qmp_discard_response(ahci->parent->qts,
-                         "{'execute': 'blockdev-remove-medium', "
-                         "'arguments': {'id': 'cd0'}}");
+    qtest_qmp_assert_success(ahci->parent->qts,
+                             "{'execute': 'blockdev-remove-medium', "
+                             "'arguments': {'id': 'cd0'}}");
 
     /* Test the tray without a medium */
     ahci_atapi_load(ahci, port);
@@ -1607,16 +1604,18 @@ static void test_atapi_tray(void)
     atapi_wait_tray(ahci, true);
 
     /* Re-insert media */
-    qmp_discard_response(ahci->parent->qts,
-                         "{'execute': 'blockdev-add', "
-                         "'arguments': {'node-name': 'node0', "
-                                        "'driver': 'raw', "
-                                        "'file': { 'driver': 'file', "
-                                                  "'filename': %s }}}", iso);
-    qmp_discard_response(ahci->parent->qts,
-                         "{'execute': 'blockdev-insert-medium',"
-                         "'arguments': { 'id': 'cd0', "
-                                         "'node-name': 'node0' }}");
+    qtest_qmp_assert_success(
+        ahci->parent->qts,
+        "{'execute': 'blockdev-add', "
+        "'arguments': {'node-name': 'node0', "
+                      "'driver': 'raw', "
+                      "'file': { 'driver': 'file', "
+                                "'filename': %s }}}", iso);
+    qtest_qmp_assert_success(
+        ahci->parent->qts,
+        "{'execute': 'blockdev-insert-medium',"
+        "'arguments': { 'id': 'cd0', "
+                       "'node-name': 'node0' }}");
 
     /* Again, the event shows up first */
     qtest_qmp_send(ahci->parent->qts, "{'execute': 'blockdev-close-tray', "
diff --git a/tests/qtest/boot-order-test.c b/tests/qtest/boot-order-test.c
index 0680d79d6d..8f2b6ef05a 100644
--- a/tests/qtest/boot-order-test.c
+++ b/tests/qtest/boot-order-test.c
@@ -16,9 +16,6 @@
 #include "qapi/qmp/qdict.h"
 #include "standard-headers/linux/qemu_fw_cfg.h"
 
-/* TODO actually test the results and get rid of this */
-#define qmp_discard_response(qs, ...) qobject_unref(qtest_qmp(qs, __VA_ARGS__))
-
 typedef struct {
     const char *args;
     uint64_t expected_boot;
@@ -43,7 +40,7 @@ static void test_a_boot_order(const char *machine,
                       machine ?: "", test_args);
     actual = read_boot_order(qts);
     g_assert_cmphex(actual, ==, expected_boot);
-    qmp_discard_response(qts, "{ 'execute': 'system_reset' }");
+    qtest_qmp_assert_success(qts, "{ 'execute': 'system_reset' }");
     /*
      * system_reset only requests reset.  We get a RESET event after
      * the actual reset completes.  Need to wait for that.
diff --git a/tests/qtest/fdc-test.c b/tests/qtest/fdc-test.c
index 1f9b99ad6d..5e8fbda9df 100644
--- a/tests/qtest/fdc-test.c
+++ b/tests/qtest/fdc-test.c
@@ -28,9 +28,6 @@
 #include "libqtest-single.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__))
-
 #define DRIVE_FLOPPY_BLANK \
     "-drive 
if=floppy,file=null-co://,file.read-zeroes=on,format=raw,size=1440k"
 
@@ -304,9 +301,10 @@ static void test_media_insert(void)
 
     /* Insert media in drive. DSKCHK should not be reset until a step pulse
      * is sent. */
-    qmp_discard_response("{'execute':'blockdev-change-medium', 'arguments':{"
-                         " 'id':'floppy0', 'filename': %s, 'format': 'raw' }}",
-                         test_image);
+    qtest_qmp_assert_success(global_qtest,
+                             "{'execute':'blockdev-change-medium', 
'arguments':{"
+                             " 'id':'floppy0', 'filename': %s, 'format': 'raw' 
}}",
+                             test_image);
 
     dir = inb(FLOPPY_BASE + reg_dir);
     assert_bit_set(dir, DSKCHG);
@@ -335,8 +333,9 @@ static void test_media_change(void)
 
     /* Eject the floppy and check that DSKCHG is set. Reading it out doesn't
      * reset the bit. */
-    qmp_discard_response("{'execute':'eject', 'arguments':{"
-                         " 'id':'floppy0' }}");
+    qtest_qmp_assert_success(global_qtest,
+                             "{'execute':'eject', 'arguments':{"
+                             " 'id':'floppy0' }}");
 
     dir = inb(FLOPPY_BASE + reg_dir);
     assert_bit_set(dir, DSKCHG);
diff --git a/tests/qtest/ide-test.c b/tests/qtest/ide-test.c
index dcb050bf9b..d6b4f6e36a 100644
--- a/tests/qtest/ide-test.c
+++ b/tests/qtest/ide-test.c
@@ -34,9 +34,6 @@
 #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(q, ...) qobject_unref(qtest_qmp(q, __VA_ARGS__))
-
 #define TEST_IMAGE_SIZE 64 * 1024 * 1024
 
 #define IDE_PCI_DEV     1
@@ -766,7 +763,7 @@ static void test_pci_retry_flush(void)
     qtest_qmp_eventwait(qts, "STOP");
 
     /* Complete the command */
-    qmp_discard_response(qts, "{'execute':'cont' }");
+    qtest_qmp_assert_success(qts, "{'execute':'cont' }");
 
     /* Check registers */
     data = qpci_io_readb(dev, ide_bar, reg_device);
diff --git a/tests/qtest/migration-test.c b/tests/qtest/migration-test.c
index 3b615b0da9..ac2e8ecac6 100644
--- a/tests/qtest/migration-test.c
+++ b/tests/qtest/migration-test.c
@@ -40,9 +40,6 @@
 #include "linux/kvm.h"
 #endif
 
-/* TODO actually test the results and get rid of this */
-#define qtest_qmp_discard_response(...) qobject_unref(qtest_qmp(__VA_ARGS__))
-
 unsigned start_address;
 unsigned end_address;
 static bool uffd_feature_thread_id;
@@ -731,7 +728,7 @@ static void test_migrate_end(QTestState *from, QTestState 
*to, bool test_dest)
             usleep(1000 * 10);
         } while (dest_byte_a == dest_byte_b);
 
-        qtest_qmp_discard_response(to, "{ 'execute' : 'stop'}");
+        qtest_qmp_assert_success(to, "{ 'execute' : 'stop'}");
 
         /* With it stopped, check nothing changes */
         qtest_memread(to, start_address, &dest_byte_c, 1);
diff --git a/tests/qtest/test-filter-mirror.c b/tests/qtest/test-filter-mirror.c
index 248fc88699..adeada3eb8 100644
--- a/tests/qtest/test-filter-mirror.c
+++ b/tests/qtest/test-filter-mirror.c
@@ -16,9 +16,6 @@
 #include "qemu/error-report.h"
 #include "qemu/main-loop.h"
 
-/* TODO actually test the results and get rid of this */
-#define qmp_discard_response(qs, ...) qobject_unref(qtest_qmp(qs, __VA_ARGS__))
-
 static void test_mirror(void)
 {
     int send_sock[2], recv_sock[2];
@@ -52,7 +49,7 @@ static void test_mirror(void)
     };
 
     /* send a qmp command to guarantee that 'connected' is setting to true. */
-    qmp_discard_response(qts, "{ 'execute' : 'query-status'}");
+    qtest_qmp_assert_success(qts, "{ 'execute' : 'query-status'}");
     ret = iov_send(send_sock[0], iov, 2, 0, sizeof(size) + sizeof(send_buf));
     g_assert_cmpint(ret, ==, sizeof(send_buf) + sizeof(size));
     close(send_sock[0]);
diff --git a/tests/qtest/test-filter-redirector.c 
b/tests/qtest/test-filter-redirector.c
index 24ca9280f8..e72e3b7873 100644
--- a/tests/qtest/test-filter-redirector.c
+++ b/tests/qtest/test-filter-redirector.c
@@ -58,9 +58,6 @@
 #include "qemu/error-report.h"
 #include "qemu/main-loop.h"
 
-/* TODO actually test the results and get rid of this */
-#define qmp_discard_response(qs, ...) qobject_unref(qtest_qmp(qs, __VA_ARGS__))
-
 static void test_redirector_tx(void)
 {
     int backend_sock[2], recv_sock;
@@ -98,7 +95,7 @@ static void test_redirector_tx(void)
     g_assert_cmpint(recv_sock, !=, -1);
 
     /* send a qmp command to guarantee that 'connected' is setting to true. */
-    qmp_discard_response(qts, "{ 'execute' : 'query-status'}");
+    qtest_qmp_assert_success(qts, "{ 'execute' : 'query-status'}");
 
     struct iovec iov[] = {
         {
@@ -176,7 +173,7 @@ static void test_redirector_rx(void)
     send_sock = unix_connect(sock_path1, NULL);
     g_assert_cmpint(send_sock, !=, -1);
     /* send a qmp command to guarantee that 'connected' is setting to true. */
-    qmp_discard_response(qts, "{ 'execute' : 'query-status'}");
+    qtest_qmp_assert_success(qts, "{ 'execute' : 'query-status'}");
 
     ret = iov_send(send_sock, iov, 2, 0, sizeof(size) + sizeof(send_buf));
     g_assert_cmpint(ret, ==, sizeof(send_buf) + sizeof(size));
diff --git a/tests/qtest/virtio-blk-test.c b/tests/qtest/virtio-blk-test.c
index 19c01f808b..98c906ebb4 100644
--- a/tests/qtest/virtio-blk-test.c
+++ b/tests/qtest/virtio-blk-test.c
@@ -17,9 +17,6 @@
 #include "libqos/qgraph.h"
 #include "libqos/virtio-blk.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
@@ -453,9 +450,10 @@ static void config(void *obj, void *data, QGuestAllocator 
*t_alloc)
 
     qvirtio_set_driver_ok(dev);
 
-    qmp_discard_response("{ 'execute': 'block_resize', "
-                         " 'arguments': { 'device': 'drive0', "
-                         " 'size': %d } }", n_size);
+    qtest_qmp_assert_success(global_qtest,
+                             "{ 'execute': 'block_resize', "
+                             " 'arguments': { 'device': 'drive0', "
+                             " 'size': %d } }", n_size);
     qvirtio_wait_config_isr(dev, QVIRTIO_BLK_TIMEOUT_US);
 
     capacity = qvirtio_config_readq(dev, 0);
@@ -502,9 +500,10 @@ static void msix(void *obj, void *u_data, QGuestAllocator 
*t_alloc)
 
     qvirtio_set_driver_ok(dev);
 
-    qmp_discard_response("{ 'execute': 'block_resize', "
-                         " 'arguments': { 'device': 'drive0', "
-                         " 'size': %d } }", n_size);
+    qtest_qmp_assert_success(global_qtest,
+                             "{ 'execute': 'block_resize', "
+                             " 'arguments': { 'device': 'drive0', "
+                             " 'size': %d } }", n_size);
 
     qvirtio_wait_config_isr(dev, QVIRTIO_BLK_TIMEOUT_US);
 
@@ -758,9 +757,10 @@ static void resize(void *obj, void *data, QGuestAllocator 
*t_alloc)
 
     vq = test_basic(dev, t_alloc);
 
-    qmp_discard_response("{ 'execute': 'block_resize', "
-                         " 'arguments': { 'device': 'drive0', "
-                         " 'size': %d } }", n_size);
+    qtest_qmp_assert_success(global_qtest,
+                             "{ 'execute': 'block_resize', "
+                             " 'arguments': { 'device': 'drive0', "
+                             " 'size': %d } }", n_size);
 
     qvirtio_wait_queue_isr(qts, dev, vq, QVIRTIO_BLK_TIMEOUT_US);
 
-- 
2.40.0




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