tests/qtest/migration: Remove vmstate-static-checker test

I fumbled one of my last pull requests when fixing in-tree an issue
with commit 87d67fa ("monitor: Stop removing non-duplicated
fds"). Basically mixed-up my `git add -p` and `git checkout -p` and
committed a piece of test infra that has not been reviewed yet.

This has not caused any bad symptoms because the test is not enabled
by default anywhere: make check doesn't use two qemu binaries and the
CI doesn't have PYTHON set for the compat tests. Besides, the test
works fine anyway, it would not break anything.

Remove this because it was never intended to be merged.

Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Fabiano Rosas <farosas@suse.de>

tests/qtest/libqtest.c

@@ -514,29 +514,24 @@ static QTestState *qtest_init_internal(const char *qemu_bin,
         kill(s->qemu_pid, SIGSTOP);
     }
 #endif
-    return s;
+
+    /* ask endianness of the target */
+
+    s->big_endian = qtest_query_target_endianness(s);
+
+   return s;
 }
 
 QTestState *qtest_init_without_qmp_handshake(const char *extra_args)
 {
     return qtest_init_internal(qtest_qemu_binary(NULL), extra_args);
 }
 
-QTestState *qtest_init_with_env_no_handshake(const char *var,
-                                             const char *extra_args)
-{
-    return qtest_init_internal(qtest_qemu_binary(var), extra_args);
-}
-
 QTestState *qtest_init_with_env(const char *var, const char *extra_args)
 {
     QTestState *s = qtest_init_internal(qtest_qemu_binary(var), extra_args);
     QDict *greeting;
 
-    /* ask endianness of the target */
-
-    s->big_endian = qtest_query_target_endianness(s);
-
     /* Read the QMP greeting and then do the handshake */
     greeting = qtest_qmp_receive(s);
     qobject_unref(greeting);

tests/qtest/libqtest.h

@@ -68,8 +68,6 @@ QTestState *qtest_init(const char *extra_args);
  */
 QTestState *qtest_init_with_env(const char *var, const char *extra_args);
 
-QTestState *qtest_init_with_env_no_handshake(const char *var,
-                                             const char *extra_args);
 /**
  * qtest_init_without_qmp_handshake:
  * @extra_args: other arguments to pass to QEMU.  CAUTION: these

tests/qtest/migration-test.c

@@ -64,7 +64,6 @@ static QTestMigrationState dst_state;
 #define DIRTYLIMIT_TOLERANCE_RANGE  25  /* MB/s */
 
 #define ANALYZE_SCRIPT "scripts/analyze-migration.py"
-#define VMSTATE_CHECKER_SCRIPT "scripts/vmstate-static-checker.py"
 
 #define QEMU_VM_FILE_MAGIC 0x5145564d
 #define FILE_TEST_FILENAME "migfile"
@@ -1692,85 +1691,6 @@ static void test_analyze_script(void)
     test_migrate_end(from, to, false);
     cleanup("migfile");
 }
-
-static void test_vmstate_checker_script(void)
-{
-    g_autofree gchar *cmd_src = NULL;
-    g_autofree gchar *cmd_dst = NULL;
-    g_autofree gchar *vmstate_src = NULL;
-    g_autofree gchar *vmstate_dst = NULL;
-    const char *machine_alias, *machine_opts = "";
-    g_autofree char *machine = NULL;
-    const char *arch = qtest_get_arch();
-    int pid, wstatus;
-    const char *python = g_getenv("PYTHON");
-
-    if (!getenv(QEMU_ENV_SRC) && !getenv(QEMU_ENV_DST)) {
-        g_test_skip("Test needs two different QEMU versions");
-        return;
-    }
-
-    if (!python) {
-        g_test_skip("PYTHON variable not set");
-        return;
-    }
-
-    if (strcmp(arch, "i386") == 0 || strcmp(arch, "x86_64") == 0) {
-        if (g_str_equal(arch, "i386")) {
-            machine_alias = "pc";
-        } else {
-            machine_alias = "q35";
-        }
-    } else if (g_str_equal(arch, "s390x")) {
-        machine_alias = "s390-ccw-virtio";
-    } else if (strcmp(arch, "ppc64") == 0) {
-        machine_alias = "pseries";
-    } else if (strcmp(arch, "aarch64") == 0) {
-        machine_alias = "virt";
-    } else {
-        g_assert_not_reached();
-    }
-
-    if (!qtest_has_machine(machine_alias)) {
-        g_autofree char *msg = g_strdup_printf("machine %s not supported", machine_alias);
-        g_test_skip(msg);
-        return;
-    }
-
-    machine = resolve_machine_version(machine_alias, QEMU_ENV_SRC,
-                                      QEMU_ENV_DST);
-
-    vmstate_src = g_strdup_printf("%s/vmstate-src", tmpfs);
-    vmstate_dst = g_strdup_printf("%s/vmstate-dst", tmpfs);
-
-    cmd_dst = g_strdup_printf("-machine %s,%s -dump-vmstate %s",
-                              machine, machine_opts, vmstate_dst);
-    cmd_src = g_strdup_printf("-machine %s,%s -dump-vmstate %s",
-                              machine, machine_opts, vmstate_src);
-
-    qtest_init_with_env_no_handshake(QEMU_ENV_SRC, cmd_src);
-    qtest_init_with_env_no_handshake(QEMU_ENV_DST, cmd_dst);
-
-    pid = fork();
-    if (!pid) {
-        close(1);
-        open("/dev/null", O_WRONLY);
-        execl(python, python, VMSTATE_CHECKER_SCRIPT,
-              "-s", vmstate_src,
-              "-d", vmstate_dst,
-              NULL);
-        g_assert_not_reached();
-    }
-
-    g_assert(waitpid(pid, &wstatus, 0) == pid);
-    if (!WIFEXITED(wstatus) || WEXITSTATUS(wstatus) != 0) {
-        g_test_message("Failed to run vmstate-static-checker.py");
-        g_test_fail();
-    }
-
-    cleanup("vmstate-src");
-    cleanup("vmstate-dst");
-}
 #endif
 
 static void test_precopy_common(MigrateCommon *args)
@@ -3823,8 +3743,6 @@ int main(int argc, char **argv)
     migration_test_add("/migration/bad_dest", test_baddest);
 #ifndef _WIN32
     migration_test_add("/migration/analyze-script", test_analyze_script);
-    migration_test_add("/migration/vmstate-checker-script",
-                       test_vmstate_checker_script);
 #endif
 
     if (is_x86) {