tests: ptimer: Add tests for "continuous trigger" policy

PTIMER_POLICY_CONTINUOUS_TRIGGER makes periodic ptimer to re-trigger every
period in case of load = delta = 0.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Message-id: 7a908ab.1475421224.git.digetx@gmail.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

tests/ptimer-test.c

@@ -503,6 +503,7 @@ static void check_periodic_with_load_0(gconstpointer arg)
     const uint8_t *policy = arg;
     QEMUBH *bh = qemu_bh_new(ptimer_trigger, NULL);
     ptimer_state *ptimer = ptimer_init(bh, *policy);
+    bool continuous_trigger = (*policy & PTIMER_POLICY_CONTINUOUS_TRIGGER);
 
     triggered = false;
 
@@ -517,7 +518,12 @@ static void check_periodic_with_load_0(gconstpointer arg)
     qemu_clock_step(2000000 + 100000);
 
     g_assert_cmpuint(ptimer_get_count(ptimer), ==, 0);
-    g_assert_false(triggered);
+
+    if (continuous_trigger) {
+        g_assert_true(triggered);
+    } else {
+        g_assert_false(triggered);
+    }
 
     triggered = false;
 
@@ -534,7 +540,12 @@ static void check_periodic_with_load_0(gconstpointer arg)
     qemu_clock_step(2000000 + 100000);
 
     g_assert_cmpuint(ptimer_get_count(ptimer), ==, 0);
-    g_assert_false(triggered);
+
+    if (continuous_trigger) {
+        g_assert_true(triggered);
+    } else {
+        g_assert_false(triggered);
+    }
 
     ptimer_stop(ptimer);
 }
@@ -576,6 +587,10 @@ static void add_ptimer_tests(uint8_t policy)
         g_strlcat(policy_name, "wrap_after_one_period,", 256);
     }
 
+    if (policy & PTIMER_POLICY_CONTINUOUS_TRIGGER) {
+        g_strlcat(policy_name, "continuous_trigger,", 256);
+    }
+
     g_test_add_data_func(
         g_strdup_printf("/ptimer/set_count policy=%s", policy_name),
         ppolicy, check_set_count);
@@ -623,7 +638,7 @@ static void add_ptimer_tests(uint8_t policy)
 
 static void add_all_ptimer_policies_comb_tests(void)
 {
-    int last_policy = PTIMER_POLICY_WRAP_AFTER_ONE_PERIOD;
+    int last_policy = PTIMER_POLICY_CONTINUOUS_TRIGGER;
     int policy = PTIMER_POLICY_DEFAULT;
 
     for (; policy < (last_policy << 1); policy++) {