tests: Move unit tests into a separate directory

The main tests directory still looks very crowded, and it's not
clear which files are part of a unit tests and which belong to
a different test subsystem. Let's clean up the mess and move the
unit tests to a separate directory.

Message-Id: <20210310063314.1049838-1-thuth@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>

1 files changed, 892 insertions, 0 deletions

diff --git a/tests/unit/ptimer-test.c b/tests/unit/ptimer-test.c
new file mode 100644
index 0000000000..9176b96c1c
--- /dev/null
+++ b/tests/unit/ptimer-test.c
@@ -0,0 +1,892 @@
+/*
+ * QTest testcase for the ptimer
+ *
+ * Copyright (c) 2016 Dmitry Osipenko <digetx@gmail.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ *
+ */
+
+#include "qemu/osdep.h"
+#include <glib/gprintf.h>
+
+#include "qemu/main-loop.h"
+#include "hw/ptimer.h"
+
+#include "ptimer-test.h"
+
+static bool triggered;
+
+static void ptimer_trigger(void *opaque)
+{
+    triggered = true;
+}
+
+static void ptimer_test_expire_qemu_timers(int64_t expire_time,
+                                           QEMUClockType type)
+{
+    QEMUTimerList *timer_list = main_loop_tlg.tl[type];
+    QEMUTimer *t = timer_list->active_timers.next;
+
+    while (t != NULL) {
+        if (t->expire_time == expire_time) {
+            timer_del(t);
+
+            if (t->cb != NULL) {
+                t->cb(t->opaque);
+            }
+        }
+
+        t = t->next;
+    }
+}
+
+static void ptimer_test_set_qemu_time_ns(int64_t ns)
+{
+    ptimer_test_time_ns = ns;
+}
+
+static void qemu_clock_step(uint64_t ns)
+{
+    int64_t deadline = qemu_clock_deadline_ns_all(QEMU_CLOCK_VIRTUAL,
+                                                  QEMU_TIMER_ATTR_ALL);
+    int64_t advanced_time = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) + ns;
+
+    while (deadline != -1 && deadline <= advanced_time) {
+        ptimer_test_set_qemu_time_ns(deadline);
+        ptimer_test_expire_qemu_timers(deadline, QEMU_CLOCK_VIRTUAL);
+        deadline = qemu_clock_deadline_ns_all(QEMU_CLOCK_VIRTUAL,
+                                              QEMU_TIMER_ATTR_ALL);
+    }
+
+    ptimer_test_set_qemu_time_ns(advanced_time);
+}
+
+static void check_set_count(gconstpointer arg)
+{
+    const uint8_t *policy = arg;
+    ptimer_state *ptimer = ptimer_init(ptimer_trigger, NULL, *policy);
+
+    triggered = false;
+
+    ptimer_transaction_begin(ptimer);
+    ptimer_set_count(ptimer, 1000);
+    ptimer_transaction_commit(ptimer);
+    g_assert_cmpuint(ptimer_get_count(ptimer), ==, 1000);
+    g_assert_false(triggered);
+    ptimer_free(ptimer);
+}
+
+static void check_set_limit(gconstpointer arg)
+{
+    const uint8_t *policy = arg;
+    ptimer_state *ptimer = ptimer_init(ptimer_trigger, NULL, *policy);
+
+    triggered = false;
+
+    ptimer_transaction_begin(ptimer);
+    ptimer_set_limit(ptimer, 1000, 0);
+    ptimer_transaction_commit(ptimer);
+    g_assert_cmpuint(ptimer_get_count(ptimer), ==, 0);
+    g_assert_cmpuint(ptimer_get_limit(ptimer), ==, 1000);
+    g_assert_false(triggered);
+
+    ptimer_transaction_begin(ptimer);
+    ptimer_set_limit(ptimer, 2000, 1);
+    ptimer_transaction_commit(ptimer);
+    g_assert_cmpuint(ptimer_get_count(ptimer), ==, 2000);
+    g_assert_cmpuint(ptimer_get_limit(ptimer), ==, 2000);
+    g_assert_false(triggered);
+    ptimer_free(ptimer);
+}
+
+static void check_oneshot(gconstpointer arg)
+{
+    const uint8_t *policy = arg;
+    ptimer_state *ptimer = ptimer_init(ptimer_trigger, NULL, *policy);
+    bool no_round_down = (*policy & PTIMER_POLICY_NO_COUNTER_ROUND_DOWN);
+
+    triggered = false;
+
+    ptimer_transaction_begin(ptimer);
+    ptimer_set_period(ptimer, 2000000);
+    ptimer_set_count(ptimer, 10);
+    ptimer_run(ptimer, 1);
+    ptimer_transaction_commit(ptimer);
+
+    qemu_clock_step(2000000 * 2 + 1);
+
+    g_assert_cmpuint(ptimer_get_count(ptimer), ==, no_round_down ? 8 : 7);
+    g_assert_false(triggered);
+
+    ptimer_transaction_begin(ptimer);
+    ptimer_stop(ptimer);
+    ptimer_transaction_commit(ptimer);
+
+    g_assert_cmpuint(ptimer_get_count(ptimer), ==, no_round_down ? 8 : 7);
+    g_assert_false(triggered);
+
+    qemu_clock_step(2000000 * 11);
+
+    g_assert_cmpuint(ptimer_get_count(ptimer), ==, no_round_down ? 8 : 7);
+    g_assert_false(triggered);
+
+    ptimer_transaction_begin(ptimer);
+    ptimer_run(ptimer, 1);
+    ptimer_transaction_commit(ptimer);
+
+    qemu_clock_step(2000000 * 7 + 1);
+
+    g_assert_cmpuint(ptimer_get_count(ptimer), ==, no_round_down ? 1 : 0);
+
+    if (no_round_down) {
+        g_assert_false(triggered);
+    } else {
+        g_assert_true(triggered);
+
+        triggered = false;
+    }
+
+    qemu_clock_step(2000000);
+
+    g_assert_cmpuint(ptimer_get_count(ptimer), ==, 0);
+
+    if (no_round_down) {
+        g_assert_true(triggered);
+
+        triggered = false;
+    } else {
+        g_assert_false(triggered);
+    }
+
+    qemu_clock_step(4000000);
+
+    g_assert_cmpuint(ptimer_get_count(ptimer), ==, 0);
+    g_assert_false(triggered);
+
+    ptimer_transaction_begin(ptimer);
+    ptimer_set_count(ptimer, 10);
+    ptimer_transaction_commit(ptimer);
+
+    qemu_clock_step(20000000 + 1);
+
+    g_assert_cmpuint(ptimer_get_count(ptimer), ==, 10);
+    g_assert_false(triggered);
+
+    ptimer_transaction_begin(ptimer);
+    ptimer_set_limit(ptimer, 9, 1);
+    ptimer_transaction_commit(ptimer);
+
+    qemu_clock_step(20000000 + 1);
+
+    g_assert_cmpuint(ptimer_get_count(ptimer), ==, 9);
+    g_assert_false(triggered);
+
+    ptimer_transaction_begin(ptimer);
+    ptimer_run(ptimer, 1);
+    ptimer_transaction_commit(ptimer);
+
+    qemu_clock_step(2000000 + 1);
+
+    g_assert_cmpuint(ptimer_get_count(ptimer), ==, no_round_down ? 8 : 7);
+    g_assert_false(triggered);
+
+    ptimer_transaction_begin(ptimer);
+    ptimer_set_count(ptimer, 20);
+    ptimer_transaction_commit(ptimer);
+
+    qemu_clock_step(2000000 * 19 + 1);
+
+    g_assert_cmpuint(ptimer_get_count(ptimer), ==, no_round_down ? 1 : 0);
+    g_assert_false(triggered);
+
+    qemu_clock_step(2000000);
+
+    g_assert_cmpuint(ptimer_get_count(ptimer), ==, 0);
+    g_assert_true(triggered);
+
+    ptimer_transaction_begin(ptimer);
+    ptimer_stop(ptimer);
+    ptimer_transaction_commit(ptimer);
+
+    triggered = false;
+
+    qemu_clock_step(2000000 * 12 + 1);
+
+    g_assert_cmpuint(ptimer_get_count(ptimer), ==, 0);
+    g_assert_false(triggered);
+    ptimer_free(ptimer);
+}
+
+static void check_periodic(gconstpointer arg)
+{
+    const uint8_t *policy = arg;
+    ptimer_state *ptimer = ptimer_init(ptimer_trigger, NULL, *policy);
+    bool wrap_policy = (*policy & PTIMER_POLICY_WRAP_AFTER_ONE_PERIOD);
+    bool no_immediate_trigger = (*policy & PTIMER_POLICY_NO_IMMEDIATE_TRIGGER);
+    bool no_immediate_reload = (*policy & PTIMER_POLICY_NO_IMMEDIATE_RELOAD);
+    bool no_round_down = (*policy & PTIMER_POLICY_NO_COUNTER_ROUND_DOWN);
+    bool trig_only_on_dec = (*policy & PTIMER_POLICY_TRIGGER_ONLY_ON_DECREMENT);
+
+    triggered = false;
+
+    ptimer_transaction_begin(ptimer);
+    ptimer_set_period(ptimer, 2000000);
+    ptimer_set_limit(ptimer, 10, 1);
+    ptimer_run(ptimer, 0);
+    ptimer_transaction_commit(ptimer);
+
+    g_assert_cmpuint(ptimer_get_count(ptimer), ==, 10);
+    g_assert_false(triggered);
+
+    qemu_clock_step(1);
+
+    g_assert_cmpuint(ptimer_get_count(ptimer), ==, no_round_down ? 10 : 9);
+    g_assert_false(triggered);
+
+    qemu_clock_step(2000000 * 10 - 1);
+
+    g_assert_cmpuint(ptimer_get_count(ptimer), ==, wrap_policy ? 0 : 10);
+    g_assert_true(triggered);
+
+    qemu_clock_step(1);
+
+    g_assert_cmpuint(ptimer_get_count(ptimer), ==,
+                     wrap_policy ? 0 : (no_round_down ? 10 : 9));
+    g_assert_true(triggered);
+
+    triggered = false;
+
+    qemu_clock_step(2000000);
+
+    g_assert_cmpuint(ptimer_get_count(ptimer), ==,
+                    (no_round_down ? 9 : 8) + (wrap_policy ? 1 : 0));
+    g_assert_false(triggered);
+
+    ptimer_transaction_begin(ptimer);
+    ptimer_set_count(ptimer, 20);
+    ptimer_transaction_commit(ptimer);
+
+    g_assert_cmpuint(ptimer_get_count(ptimer), ==, 20);
+    g_assert_false(triggered);
+
+    qemu_clock_step(1);
+
+    g_assert_cmpuint(ptimer_get_count(ptimer), ==, no_round_down ? 20 : 19);
+    g_assert_false(triggered);
+
+    qemu_clock_step(2000000 * 11 + 1);
+
+    g_assert_cmpuint(ptimer_get_count(ptimer), ==, no_round_down ? 9 : 8);
+    g_assert_false(triggered);
+
+    qemu_clock_step(2000000 * 10);
+
+    g_assert_cmpuint(ptimer_get_count(ptimer), ==,
+                    (no_round_down ? 9 : 8) + (wrap_policy ? 1 : 0));
+    g_assert_true(triggered);
+
+    triggered = false;
+
+    ptimer_transaction_begin(ptimer);
+    ptimer_set_count(ptimer, 3);
+    ptimer_transaction_commit(ptimer);
+
+    g_assert_cmpuint(ptimer_get_count(ptimer), ==, 3);
+    g_assert_false(triggered);
+
+    qemu_clock_step(1);
+
+    g_assert_cmpuint(ptimer_get_count(ptimer), ==, no_round_down ? 3 : 2);
+    g_assert_false(triggered);
+
+    qemu_clock_step(2000000 * 4);
+
+    g_assert_cmpuint(ptimer_get_count(ptimer), ==,
+                    (no_round_down ? 9 : 8) + (wrap_policy ? 1 : 0));
+    g_assert_true(triggered);
+
+    ptimer_transaction_begin(ptimer);
+    ptimer_stop(ptimer);
+    ptimer_transaction_commit(ptimer);
+    triggered = false;
+
+    qemu_clock_step(2000000);
+
+    g_assert_cmpuint(ptimer_get_count(ptimer), ==,
+                    (no_round_down ? 9 : 8) + (wrap_policy ? 1 : 0));
+    g_assert_false(triggered);
+
+    ptimer_transaction_begin(ptimer);
+    ptimer_set_count(ptimer, 3);
+    ptimer_run(ptimer, 0);
+    ptimer_transaction_commit(ptimer);
+
+    qemu_clock_step(2000000 * 3 + 1);
+
+    g_assert_cmpuint(ptimer_get_count(ptimer), ==,
+                     wrap_policy ? 0 : (no_round_down ? 10 : 9));
+    g_assert_true(triggered);
+
+    triggered = false;
+
+    qemu_clock_step(2000000);
+
+    g_assert_cmpuint(ptimer_get_count(ptimer), ==,
+                    (no_round_down ? 9 : 8) + (wrap_policy ? 1 : 0));
+    g_assert_false(triggered);
+
+    ptimer_transaction_begin(ptimer);
+    ptimer_set_count(ptimer, 0);
+    ptimer_transaction_commit(ptimer);
+    g_assert_cmpuint(ptimer_get_count(ptimer), ==,
+                     no_immediate_reload ? 0 : 10);
+
+    if (no_immediate_trigger || trig_only_on_dec) {
+        g_assert_false(triggered);
+    } else {
+        g_assert_true(triggered);
+    }
+
+    triggered = false;
+
+    qemu_clock_step(1);
+
+    if (no_immediate_reload) {
+        g_assert_cmpuint(ptimer_get_count(ptimer), ==, 0);
+        g_assert_false(triggered);
+
+        qemu_clock_step(2000000);
+
+        if (no_immediate_trigger) {
+            g_assert_true(triggered);
+        } else {
+            g_assert_false(triggered);
+        }
+
+        triggered = false;
+    }
+
+    g_assert_cmpuint(ptimer_get_count(ptimer), ==, no_round_down ? 10 : 9);
+    g_assert_false(triggered);
+
+    qemu_clock_step(2000000 * 12);
+
+    g_assert_cmpuint(ptimer_get_count(ptimer), ==,
+                    (no_round_down ? 8 : 7) + (wrap_policy ? 1 : 0));
+    g_assert_true(triggered);
+
+    ptimer_transaction_begin(ptimer);
+    ptimer_stop(ptimer);
+    ptimer_transaction_commit(ptimer);
+
+    triggered = false;
+
+    qemu_clock_step(2000000 * 10);
+
+    g_assert_cmpuint(ptimer_get_count(ptimer), ==,
+                    (no_round_down ? 8 : 7) + (wrap_policy ? 1 : 0));
+    g_assert_false(triggered);
+
+    ptimer_transaction_begin(ptimer);
+    ptimer_run(ptimer, 0);
+    ptimer_transaction_commit(ptimer);
+
+    ptimer_transaction_begin(ptimer);
+    ptimer_set_period(ptimer, 0);
+    ptimer_transaction_commit(ptimer);
+
+    qemu_clock_step(2000000 + 1);
+
+    g_assert_cmpuint(ptimer_get_count(ptimer), ==,
+                    (no_round_down ? 8 : 7) + (wrap_policy ? 1 : 0));
+    g_assert_false(triggered);
+    ptimer_free(ptimer);
+}
+
+static void check_on_the_fly_mode_change(gconstpointer arg)
+{
+    const uint8_t *policy = arg;
+    ptimer_state *ptimer = ptimer_init(ptimer_trigger, NULL, *policy);
+    bool wrap_policy = (*policy & PTIMER_POLICY_WRAP_AFTER_ONE_PERIOD);
+    bool no_round_down = (*policy & PTIMER_POLICY_NO_COUNTER_ROUND_DOWN);
+
+    triggered = false;
+
+    ptimer_transaction_begin(ptimer);
+    ptimer_set_period(ptimer, 2000000);
+    ptimer_set_limit(ptimer, 10, 1);
+    ptimer_run(ptimer, 1);
+    ptimer_transaction_commit(ptimer);
+
+    qemu_clock_step(2000000 * 9 + 1);
+
+    g_assert_cmpuint(ptimer_get_count(ptimer), ==, no_round_down ? 1 : 0);
+    g_assert_false(triggered);
+
+    ptimer_transaction_begin(ptimer);
+    ptimer_run(ptimer, 0);
+    ptimer_transaction_commit(ptimer);
+
+    g_assert_cmpuint(ptimer_get_count(ptimer), ==, no_round_down ? 1 : 0);
+    g_assert_false(triggered);
+
+    qemu_clock_step(2000000);
+
+    g_assert_cmpuint(ptimer_get_count(ptimer), ==,
+                    wrap_policy ? 0 : (no_round_down ? 10 : 9));
+    g_assert_true(triggered);
+
+    triggered = false;
+
+    qemu_clock_step(2000000 * 9);
+
+    ptimer_transaction_begin(ptimer);
+    ptimer_run(ptimer, 1);
+    ptimer_transaction_commit(ptimer);
+
+    g_assert_cmpuint(ptimer_get_count(ptimer), ==,
+                     (no_round_down ? 1 : 0) + (wrap_policy ? 1 : 0));
+    g_assert_false(triggered);
+
+    qemu_clock_step(2000000 * 3);
+
+    g_assert_cmpuint(ptimer_get_count(ptimer), ==, 0);
+    g_assert_true(triggered);
+    ptimer_free(ptimer);
+}
+
+static void check_on_the_fly_period_change(gconstpointer arg)
+{
+    const uint8_t *policy = arg;
+    ptimer_state *ptimer = ptimer_init(ptimer_trigger, NULL, *policy);
+    bool no_round_down = (*policy & PTIMER_POLICY_NO_COUNTER_ROUND_DOWN);
+
+    triggered = false;
+
+    ptimer_transaction_begin(ptimer);
+    ptimer_set_period(ptimer, 2000000);
+    ptimer_set_limit(ptimer, 8, 1);
+    ptimer_run(ptimer, 1);
+    ptimer_transaction_commit(ptimer);
+
+    qemu_clock_step(2000000 * 4 + 1);
+
+    g_assert_cmpuint(ptimer_get_count(ptimer), ==, no_round_down ? 4 : 3);
+    g_assert_false(triggered);
+
+    ptimer_transaction_begin(ptimer);
+    ptimer_set_period(ptimer, 4000000);
+    ptimer_transaction_commit(ptimer);
+    g_assert_cmpuint(ptimer_get_count(ptimer), ==, no_round_down ? 4 : 3);
+
+    qemu_clock_step(4000000 * 2 + 1);
+
+    g_assert_cmpuint(ptimer_get_count(ptimer), ==, no_round_down ? 2 : 0);
+    g_assert_false(triggered);
+
+    qemu_clock_step(4000000 * 2);
+
+    g_assert_cmpuint(ptimer_get_count(ptimer), ==, 0);
+    g_assert_true(triggered);
+    ptimer_free(ptimer);
+}
+
+static void check_on_the_fly_freq_change(gconstpointer arg)
+{
+    const uint8_t *policy = arg;
+    ptimer_state *ptimer = ptimer_init(ptimer_trigger, NULL, *policy);
+    bool no_round_down = (*policy & PTIMER_POLICY_NO_COUNTER_ROUND_DOWN);
+
+    triggered = false;
+
+    ptimer_transaction_begin(ptimer);
+    ptimer_set_freq(ptimer, 500);
+    ptimer_set_limit(ptimer, 8, 1);
+    ptimer_run(ptimer, 1);
+    ptimer_transaction_commit(ptimer);
+
+    qemu_clock_step(2000000 * 4 + 1);
+
+    g_assert_cmpuint(ptimer_get_count(ptimer), ==, no_round_down ? 4 : 3);
+    g_assert_false(triggered);
+
+    ptimer_transaction_begin(ptimer);
+    ptimer_set_freq(ptimer, 250);
+    ptimer_transaction_commit(ptimer);
+    g_assert_cmpuint(ptimer_get_count(ptimer), ==, no_round_down ? 4 : 3);
+
+    qemu_clock_step(2000000 * 4 + 1);
+
+    g_assert_cmpuint(ptimer_get_count(ptimer), ==, no_round_down ? 2 : 0);
+    g_assert_false(triggered);
+
+    qemu_clock_step(2000000 * 4);
+
+    g_assert_cmpuint(ptimer_get_count(ptimer), ==, 0);
+    g_assert_true(triggered);
+    ptimer_free(ptimer);
+}
+
+static void check_run_with_period_0(gconstpointer arg)
+{
+    const uint8_t *policy = arg;
+    ptimer_state *ptimer = ptimer_init(ptimer_trigger, NULL, *policy);
+
+    triggered = false;
+
+    ptimer_transaction_begin(ptimer);
+    ptimer_set_count(ptimer, 99);
+    ptimer_run(ptimer, 1);
+    ptimer_transaction_commit(ptimer);
+
+    qemu_clock_step(10 * NANOSECONDS_PER_SECOND);
+
+    g_assert_cmpuint(ptimer_get_count(ptimer), ==, 99);
+    g_assert_false(triggered);
+    ptimer_free(ptimer);
+}
+
+static void check_run_with_delta_0(gconstpointer arg)
+{
+    const uint8_t *policy = arg;
+    ptimer_state *ptimer = ptimer_init(ptimer_trigger, NULL, *policy);
+    bool wrap_policy = (*policy & PTIMER_POLICY_WRAP_AFTER_ONE_PERIOD);
+    bool no_immediate_trigger = (*policy & PTIMER_POLICY_NO_IMMEDIATE_TRIGGER);
+    bool no_immediate_reload = (*policy & PTIMER_POLICY_NO_IMMEDIATE_RELOAD);
+    bool no_round_down = (*policy & PTIMER_POLICY_NO_COUNTER_ROUND_DOWN);
+    bool trig_only_on_dec = (*policy & PTIMER_POLICY_TRIGGER_ONLY_ON_DECREMENT);
+
+    triggered = false;
+
+    ptimer_transaction_begin(ptimer);
+    ptimer_set_period(ptimer, 2000000);
+    ptimer_set_limit(ptimer, 99, 0);
+    ptimer_run(ptimer, 1);
+    ptimer_transaction_commit(ptimer);
+    g_assert_cmpuint(ptimer_get_count(ptimer), ==,
+                     no_immediate_reload ? 0 : 99);
+
+    if (no_immediate_trigger || trig_only_on_dec) {
+        g_assert_false(triggered);
+    } else {
+        g_assert_true(triggered);
+    }
+
+    triggered = false;
+
+    if (no_immediate_trigger || no_immediate_reload) {
+        qemu_clock_step(2000000 + 1);
+
+        g_assert_cmpuint(ptimer_get_count(ptimer), ==,
+                         no_immediate_reload ? 0 : (no_round_down ? 98 : 97));
+
+        if (no_immediate_trigger && no_immediate_reload) {
+            g_assert_true(triggered);
+
+            triggered = false;
+        } else {
+            g_assert_false(triggered);
+        }
+
+        ptimer_transaction_begin(ptimer);
+        ptimer_set_count(ptimer, 99);
+        ptimer_run(ptimer, 1);
+        ptimer_transaction_commit(ptimer);
+    }
+
+    qemu_clock_step(2000000 + 1);
+
+    g_assert_cmpuint(ptimer_get_count(ptimer), ==, no_round_down ? 98 : 97);
+    g_assert_false(triggered);
+
+    qemu_clock_step(2000000 * 97);
+
+    g_assert_cmpuint(ptimer_get_count(ptimer), ==, no_round_down ? 1 : 0);
+    g_assert_false(triggered);
+
+    qemu_clock_step(2000000 * 2);
+
+    g_assert_cmpuint(ptimer_get_count(ptimer), ==, 0);
+    g_assert_true(triggered);
+
+    triggered = false;
+
+    ptimer_transaction_begin(ptimer);
+    ptimer_set_count(ptimer, 0);
+    ptimer_run(ptimer, 0);
+    ptimer_transaction_commit(ptimer);
+    g_assert_cmpuint(ptimer_get_count(ptimer), ==,
+                     no_immediate_reload ? 0 : 99);
+
+    if (no_immediate_trigger || trig_only_on_dec) {
+        g_assert_false(triggered);
+    } else {
+        g_assert_true(triggered);
+    }
+
+    triggered = false;
+
+    qemu_clock_step(1);
+
+    if (no_immediate_reload) {
+        qemu_clock_step(2000000);
+    }
+
+    g_assert_cmpuint(ptimer_get_count(ptimer), ==, no_round_down ? 99 : 98);
+
+    if (no_immediate_reload && no_immediate_trigger) {
+        g_assert_true(triggered);
+    } else {
+        g_assert_false(triggered);
+    }
+
+    triggered = false;
+
+    qemu_clock_step(2000000);
+
+    g_assert_cmpuint(ptimer_get_count(ptimer), ==, no_round_down ? 98 : 97);
+    g_assert_false(triggered);
+
+    qemu_clock_step(2000000 * 98);
+
+    g_assert_cmpuint(ptimer_get_count(ptimer), ==,
+                    wrap_policy ? 0 : (no_round_down ? 99 : 98));
+    g_assert_true(triggered);
+
+    ptimer_transaction_begin(ptimer);
+    ptimer_stop(ptimer);
+    ptimer_transaction_commit(ptimer);
+    ptimer_free(ptimer);
+}
+
+static void check_periodic_with_load_0(gconstpointer arg)
+{
+    const uint8_t *policy = arg;
+    ptimer_state *ptimer = ptimer_init(ptimer_trigger, NULL, *policy);
+    bool continuous_trigger = (*policy & PTIMER_POLICY_CONTINUOUS_TRIGGER);
+    bool no_immediate_trigger = (*policy & PTIMER_POLICY_NO_IMMEDIATE_TRIGGER);
+    bool trig_only_on_dec = (*policy & PTIMER_POLICY_TRIGGER_ONLY_ON_DECREMENT);
+
+    triggered = false;
+
+    ptimer_transaction_begin(ptimer);
+    ptimer_set_period(ptimer, 2000000);
+    ptimer_run(ptimer, 0);
+    ptimer_transaction_commit(ptimer);
+
+    g_assert_cmpuint(ptimer_get_count(ptimer), ==, 0);
+
+    if (no_immediate_trigger || trig_only_on_dec) {
+        g_assert_false(triggered);
+    } else {
+        g_assert_true(triggered);
+    }
+
+    triggered = false;
+
+    qemu_clock_step(2000000 + 1);
+
+    g_assert_cmpuint(ptimer_get_count(ptimer), ==, 0);
+
+    if (continuous_trigger || no_immediate_trigger) {
+        g_assert_true(triggered);
+    } else {
+        g_assert_false(triggered);
+    }
+
+    triggered = false;
+
+    ptimer_transaction_begin(ptimer);
+    ptimer_set_count(ptimer, 10);
+    ptimer_run(ptimer, 0);
+    ptimer_transaction_commit(ptimer);
+
+    qemu_clock_step(2000000 * 10 + 1);
+
+    g_assert_cmpuint(ptimer_get_count(ptimer), ==, 0);
+    g_assert_true(triggered);
+
+    triggered = false;
+
+    qemu_clock_step(2000000 + 1);
+
+    g_assert_cmpuint(ptimer_get_count(ptimer), ==, 0);
+
+    if (continuous_trigger) {
+        g_assert_true(triggered);
+    } else {
+        g_assert_false(triggered);
+    }
+
+    ptimer_transaction_begin(ptimer);
+    ptimer_stop(ptimer);
+    ptimer_transaction_commit(ptimer);
+    ptimer_free(ptimer);
+}
+
+static void check_oneshot_with_load_0(gconstpointer arg)
+{
+    const uint8_t *policy = arg;
+    ptimer_state *ptimer = ptimer_init(ptimer_trigger, NULL, *policy);
+    bool no_immediate_trigger = (*policy & PTIMER_POLICY_NO_IMMEDIATE_TRIGGER);
+    bool trig_only_on_dec = (*policy & PTIMER_POLICY_TRIGGER_ONLY_ON_DECREMENT);
+
+    triggered = false;
+
+    ptimer_transaction_begin(ptimer);
+    ptimer_set_period(ptimer, 2000000);
+    ptimer_run(ptimer, 1);
+    ptimer_transaction_commit(ptimer);
+
+    g_assert_cmpuint(ptimer_get_count(ptimer), ==, 0);
+
+    if (no_immediate_trigger || trig_only_on_dec) {
+        g_assert_false(triggered);
+    } else {
+        g_assert_true(triggered);
+    }
+
+    triggered = false;
+
+    qemu_clock_step(2000000 + 1);
+
+    g_assert_cmpuint(ptimer_get_count(ptimer), ==, 0);
+
+    if (no_immediate_trigger) {
+        g_assert_true(triggered);
+    } else {
+        g_assert_false(triggered);
+    }
+
+    ptimer_free(ptimer);
+}
+
+static void add_ptimer_tests(uint8_t policy)
+{
+    char policy_name[256] = "";
+    char *tmp;
+
+    if (policy == PTIMER_POLICY_DEFAULT) {
+        g_sprintf(policy_name, "default");
+    }
+
+    if (policy & PTIMER_POLICY_WRAP_AFTER_ONE_PERIOD) {
+        g_strlcat(policy_name, "wrap_after_one_period,", 256);
+    }
+
+    if (policy & PTIMER_POLICY_CONTINUOUS_TRIGGER) {
+        g_strlcat(policy_name, "continuous_trigger,", 256);
+    }
+
+    if (policy & PTIMER_POLICY_NO_IMMEDIATE_TRIGGER) {
+        g_strlcat(policy_name, "no_immediate_trigger,", 256);
+    }
+
+    if (policy & PTIMER_POLICY_NO_IMMEDIATE_RELOAD) {
+        g_strlcat(policy_name, "no_immediate_reload,", 256);
+    }
+
+    if (policy & PTIMER_POLICY_NO_COUNTER_ROUND_DOWN) {
+        g_strlcat(policy_name, "no_counter_rounddown,", 256);
+    }
+
+    if (policy & PTIMER_POLICY_TRIGGER_ONLY_ON_DECREMENT) {
+        g_strlcat(policy_name, "trigger_only_on_decrement,", 256);
+    }
+
+    g_test_add_data_func_full(
+        tmp = g_strdup_printf("/ptimer/set_count policy=%s", policy_name),
+        g_memdup(&policy, 1), check_set_count, g_free);
+    g_free(tmp);
+
+    g_test_add_data_func_full(
+        tmp = g_strdup_printf("/ptimer/set_limit policy=%s", policy_name),
+        g_memdup(&policy, 1), check_set_limit, g_free);
+    g_free(tmp);
+
+    g_test_add_data_func_full(
+        tmp = g_strdup_printf("/ptimer/oneshot policy=%s", policy_name),
+        g_memdup(&policy, 1), check_oneshot, g_free);
+    g_free(tmp);
+
+    g_test_add_data_func_full(
+        tmp = g_strdup_printf("/ptimer/periodic policy=%s", policy_name),
+        g_memdup(&policy, 1), check_periodic, g_free);
+    g_free(tmp);
+
+    g_test_add_data_func_full(
+        tmp = g_strdup_printf("/ptimer/on_the_fly_mode_change policy=%s",
+                              policy_name),
+        g_memdup(&policy, 1), check_on_the_fly_mode_change, g_free);
+    g_free(tmp);
+
+    g_test_add_data_func_full(
+        tmp = g_strdup_printf("/ptimer/on_the_fly_period_change policy=%s",
+                              policy_name),
+        g_memdup(&policy, 1), check_on_the_fly_period_change, g_free);
+    g_free(tmp);
+
+    g_test_add_data_func_full(
+        tmp = g_strdup_printf("/ptimer/on_the_fly_freq_change policy=%s",
+                              policy_name),
+        g_memdup(&policy, 1), check_on_the_fly_freq_change, g_free);
+    g_free(tmp);
+
+    g_test_add_data_func_full(
+        tmp = g_strdup_printf("/ptimer/run_with_period_0 policy=%s",
+                              policy_name),
+        g_memdup(&policy, 1), check_run_with_period_0, g_free);
+    g_free(tmp);
+
+    g_test_add_data_func_full(
+        tmp = g_strdup_printf("/ptimer/run_with_delta_0 policy=%s",
+                              policy_name),
+        g_memdup(&policy, 1), check_run_with_delta_0, g_free);
+    g_free(tmp);
+
+    g_test_add_data_func_full(
+        tmp = g_strdup_printf("/ptimer/periodic_with_load_0 policy=%s",
+                              policy_name),
+        g_memdup(&policy, 1), check_periodic_with_load_0, g_free);
+    g_free(tmp);
+
+    g_test_add_data_func_full(
+        tmp = g_strdup_printf("/ptimer/oneshot_with_load_0 policy=%s",
+                              policy_name),
+        g_memdup(&policy, 1), check_oneshot_with_load_0, g_free);
+    g_free(tmp);
+}
+
+static void add_all_ptimer_policies_comb_tests(void)
+{
+    int last_policy = PTIMER_POLICY_TRIGGER_ONLY_ON_DECREMENT;
+    int policy = PTIMER_POLICY_DEFAULT;
+
+    for (; policy < (last_policy << 1); policy++) {
+        if ((policy & PTIMER_POLICY_TRIGGER_ONLY_ON_DECREMENT) &&
+            (policy & PTIMER_POLICY_NO_IMMEDIATE_TRIGGER)) {
+            /* Incompatible policy flag settings -- don't try to test them */
+            continue;
+        }
+        add_ptimer_tests(policy);
+    }
+}
+
+int main(int argc, char **argv)
+{
+    int i;
+
+    g_test_init(&argc, &argv, NULL);
+
+    for (i = 0; i < QEMU_CLOCK_MAX; i++) {
+        main_loop_tlg.tl[i] = g_new0(QEMUTimerList, 1);
+    }
+
+    add_all_ptimer_policies_comb_tests();
+
+    qtest_allowed = true;
+
+    return g_test_run();
+}