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tests: kernel: validate k_can_yield

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Validate the behaviour of `k_can_yield` in pre-kernel, ISR, and idle
thread and standard thread contexts.

Signed-off-by: Jordan Yates <jordan.yates@data61.csiro.au>
This commit is contained in:
Jordan Yates 2022-03-26 10:14:28 +10:00 • committed by Carles Cufí
commit 775030e6f1
3 changed files with 17 additions and 0 deletions
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10
tests/kernel/context/src/main.c
View file

@ -42,6 +42,7 @@
#define EXEC_CTX_TYPE_CMD 1
#define UNKNOWN_COMMAND -1
#define INVALID_BEHAVIOUR -2
/*
* Get the timer type dependent IRQ number. If timer type
@ -227,6 +228,10 @@ static void isr_handler(const void *data)
{
ARG_UNUSED(data);
if (k_can_yield()) {
isr_info.error = INVALID_BEHAVIOUR;
}
switch (isr_info.command) {
case THREAD_SELF_CMD:
isr_info.data = (void *)k_current_get();
@ -817,6 +822,11 @@ static void k_yield_entry(void *arg0, void *arg1, void *arg2)
zassert_equal(thread_evidence, 0,
"Helper created at higher priority ran prematurely.");
/*
* Validate the thread is allowed to yield
*/
zassert_true(k_can_yield(), "Thread incorrectly detected it could not yield");
/*
* Test that the thread will yield to the higher priority helper.
* thread_evidence is still 0.

6
tests/kernel/device/src/main.c
View file

@ -135,6 +135,7 @@ static struct init_record {
bool pre_kernel;
bool is_in_isr;
bool is_pre_kernel;
bool could_yield;
} init_records[4];
__pinned_data
@ -146,6 +147,7 @@ static int add_init_record(bool pre_kernel)
rp->pre_kernel = pre_kernel;
rp->is_pre_kernel = k_is_pre_kernel();
rp->is_in_isr = k_is_in_isr();
rp->could_yield = k_can_yield();
++rp;
return 0;
}
@ -205,6 +207,8 @@ void test_pre_kernel_detection(void)
"rec %zu isr", rp - init_records);
zassert_equal(rp->is_pre_kernel, true,
"rec %zu pre-kernel", rp - init_records);
zassert_equal(rp->could_yield, false,
"rec %zu could-yield", rp - init_records);
++rp;
}
zassert_equal(rp - init_records, 2U,
@ -215,6 +219,8 @@ void test_pre_kernel_detection(void)
"rec %zu isr", rp - init_records);
zassert_equal(rp->is_pre_kernel, false,
"rec %zu post-kernel", rp - init_records);
zassert_equal(rp->could_yield, true,
"rec %zu could-yield", rp - init_records);
++rp;
}
}

1
tests/subsys/pm/power_mgmt/src/main.c
View file

@ -213,6 +213,7 @@ const struct pm_state_info *pm_policy_next_state(uint8_t cpu, int32_t ticks)
/* make sure this is idle thread */
zassert_true(z_is_idle_thread_object(_current), NULL);
zassert_true(ticks == _kernel.idle, NULL);
zassert_false(k_can_yield(), NULL);
idle_entered = true;
if (enter_low_power) {