[RFC PATCH v3 4/6] tests/arm-cpu-features: Check feature default values

[Andrew Jones <drjones@redhat.com>]

If we know what the default value should be then we can test for
that as well as the feature existence.

Signed-off-by: Andrew Jones <drjones@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
 tests/qtest/arm-cpu-features.c | 37 +++++++++++++++++++++++++---------
 1 file changed, 28 insertions(+), 9 deletions(-)

diff --git a/tests/qtest/arm-cpu-features.c b/tests/qtest/arm-cpu-features.c
index bef3ed24b604..a039e3c8d724 100644
--- a/tests/qtest/arm-cpu-features.c
+++ b/tests/qtest/arm-cpu-features.c
@@ -159,6 +159,25 @@ static bool resp_get_feature(QDict *resp, const char *feature)
     qobject_unref(_resp);                                              \
 })
 
+#define assert_feature(qts, cpu_type, feature, expected_value)         \
+({                                                                     \
+    QDict *_resp, *_props;                                             \
+                                                                       \
+    _resp = do_query_no_props(qts, cpu_type);                          \
+    g_assert(_resp);                                                   \
+    g_assert(resp_has_props(_resp));                                   \
+    _props = resp_get_props(_resp);                                    \
+    g_assert(qdict_get(_props, feature));                              \
+    g_assert(qdict_get_bool(_props, feature) == (expected_value));     \
+    qobject_unref(_resp);                                              \
+})
+
+#define assert_has_feature_enabled(qts, cpu_type, feature)             \
+    assert_feature(qts, cpu_type, feature, true)
+
+#define assert_has_feature_disabled(qts, cpu_type, feature)            \
+    assert_feature(qts, cpu_type, feature, false)
+
 static void assert_type_full(QTestState *qts)
 {
     const char *error;
@@ -405,16 +424,16 @@ static void test_query_cpu_model_expansion(const void *data)
     assert_error(qts, "host", "The CPU type 'host' requires KVM", NULL);
 
     /* Test expected feature presence/absence for some cpu types */
-    assert_has_feature(qts, "max", "pmu");
-    assert_has_feature(qts, "cortex-a15", "pmu");
+    assert_has_feature_enabled(qts, "max", "pmu");
+    assert_has_feature_enabled(qts, "cortex-a15", "pmu");
     assert_has_not_feature(qts, "cortex-a15", "aarch64");
 
     if (g_str_equal(qtest_get_arch(), "aarch64")) {
-        assert_has_feature(qts, "max", "aarch64");
-        assert_has_feature(qts, "max", "sve");
-        assert_has_feature(qts, "max", "sve128");
-        assert_has_feature(qts, "cortex-a57", "pmu");
-        assert_has_feature(qts, "cortex-a57", "aarch64");
+        assert_has_feature_enabled(qts, "max", "aarch64");
+        assert_has_feature_enabled(qts, "max", "sve");
+        assert_has_feature_enabled(qts, "max", "sve128");
+        assert_has_feature_enabled(qts, "cortex-a57", "pmu");
+        assert_has_feature_enabled(qts, "cortex-a57", "aarch64");
 
         sve_tests_default(qts, "max");
 
@@ -451,8 +470,8 @@ static void test_query_cpu_model_expansion_kvm(const void *data)
         QDict *resp;
         char *error;
 
-        assert_has_feature(qts, "host", "aarch64");
-        assert_has_feature(qts, "host", "pmu");
+        assert_has_feature_enabled(qts, "host", "aarch64");
+        assert_has_feature_enabled(qts, "host", "pmu");
 
         assert_error(qts, "cortex-a15",
             "We cannot guarantee the CPU type 'cortex-a15' works "
-- 
2.21.1