[PATCH v3 009/114] tests/unit: add test-target-info

[Yonggang Luo <luoyonggang@xxxxxxxxx>]

Collect each target-info-def.c object in target_info_def_objects,
keyed by target dir. Link every value so constructors fill the
list. Assert target_info() is not NULL and target_info_list() has
one entry per linked object.

Signed-off-by: Yonggang Luo <luoyonggang@xxxxxxxxx>
---
 meson.build                   |  6 +++++-
 tests/unit/meson.build        |  4 ++++
 tests/unit/test-target-info.c | 38 +++++++++++++++++++++++++++++++++++
 3 files changed, 47 insertions(+), 1 deletion(-)
 create mode 100644 tests/unit/test-target-info.c

diff --git a/meson.build b/meson.build
index 9a6a80fd0c8..776d38c5afd 100644
--- a/meson.build
+++ b/meson.build
@@ -4260,6 +4260,8 @@ endif
 
 traceable = []
 emulators = {}
+target_info_def = files('target-info-def.c')
+target_info_def_objects = {}
 foreach target : target_dirs
   config_target = config_target_mak[target]
   target_name = config_target['TARGET_NAME']
@@ -4331,7 +4333,7 @@ foreach target : target_dirs
     endif
   endif
 
-  arch_srcs += files('target-info-def.c')
+  arch_srcs += target_info_def
 
   if target_base_arch in target_arch
     t = target_arch[target_base_arch].apply(config_target, strict: false)
@@ -4409,6 +4411,8 @@ foreach target : target_dirs
                  c_args: c_args,
                  build_by_default: false)
 
+  target_info_def_objects += {target: lib.extract_objects(target_info_def)}
+
   if target.endswith('-softmmu')
     execs = [{
       'name': 'qemu-system-' + target_name,
diff --git a/tests/unit/meson.build b/tests/unit/meson.build
index e47bc7225ab..dc980a35955 100644
--- a/tests/unit/meson.build
+++ b/tests/unit/meson.build
@@ -43,6 +43,10 @@ tests = {
   'test-qgraph': ['../qtest/libqos/qgraph.c'],
   'check-qom-interface': [qom],
   'check-qom-proplist': [qom],
+  'test-target-info': [qom, declare_dependency(
+    objects: target_info_def_objects.values(),
+    compile_args: ['-DTARGET_INFO_DEF_COUNT=@0@'.format(
+      target_info_def_objects.values().length())])],
   'test-qemu-opts': [],
   'test-keyval': [testqapi],
   'test-logging': [],
diff --git a/tests/unit/test-target-info.c b/tests/unit/test-target-info.c
new file mode 100644
index 00000000000..e6de9b259e8
--- /dev/null
+++ b/tests/unit/test-target-info.c
@@ -0,0 +1,38 @@
+/*
+ * TargetInfo unit tests
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+#include "qemu/osdep.h"
+#include "qemu/target-info.h"
+#include "qemu/target-info-def.h"
+
+static int target_info_list_count(void)
+{
+    TargetInfoNode *node;
+    int n = 0;
+
+    QLIST_FOREACH(node, target_info_list(), next) {
+        n++;
+    }
+    return n;
+}
+
+static void test_target_info_not_null(void)
+{
+    g_assert_nonnull(target_info());
+}
+
+static void test_target_info_list_count(void)
+{
+    g_assert_cmpint(target_info_list_count(), ==, TARGET_INFO_DEF_COUNT);
+}
+
+int main(int argc, char **argv)
+{
+    g_test_init(&argc, &argv, NULL);
+    g_test_add_func("/target-info/not-null", test_target_info_not_null);
+    g_test_add_func("/target-info/list-count", test_target_info_list_count);
+    return g_test_run();
+}
-- 
2.52.0.windows.1