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test: test sandbox sound driver more rigorously

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Consider unexpected values for frequency:

* negative frequency
* zero frequency
* frequency exceeding sampling frequency

As in these cases the sum of the samples is zero also check the count of
the samples.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Heinrich Schuchardt 2022-12-04 17:11:41 +01:00
parent d0e8777bee
commit 968eaaeaa7
3 changed files with 30 additions and 0 deletions
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10
arch/sandbox/include/asm/test.h
View File

@ -188,6 +188,16 @@ int sandbox_get_setup_called(struct udevice *dev);
*/
int sandbox_get_sound_active(struct udevice *dev);
/**
* sandbox_get_sound_count() - Read back the count of the sound data so far
*
* This data is provided to the sandbox driver by the sound play() method.
*
* @dev: Device to check
* Return: count of audio data
*/
int sandbox_get_sound_count(struct udevice *dev);
/**
* sandbox_get_sound_sum() - Read back the sum of the sound data so far
*

9
drivers/sound/sandbox.c
View File

@ -29,6 +29,7 @@ struct sandbox_i2s_priv {
struct sandbox_sound_priv {
int setup_called; /* Incremented when setup() method is called */
bool active; /* TX data is being sent */
int count; /* Use to count the provided audio data */
int sum; /* Use to sum the provided audio data */
bool allow_beep; /* true to allow the start_beep() interface */
int frequency_hz; /* Beep frequency if active, else 0 */
@ -68,6 +69,13 @@ int sandbox_get_sound_active(struct udevice *dev)
return priv->active;
}
int sandbox_get_sound_count(struct udevice *dev)
{
struct sandbox_sound_priv *priv = dev_get_priv(dev);
return priv->count;
}
int sandbox_get_sound_sum(struct udevice *dev)
{
struct sandbox_sound_priv *priv = dev_get_priv(dev);
@ -168,6 +176,7 @@ static int sandbox_sound_play(struct udevice *dev, void *data, uint data_size)
for (i = 0; i < data_size; i++)
priv->sum += ((uint8_t *)data)[i];
priv->count += data_size;
return i2s_tx_data(uc_priv->i2s, data, data_size);
}

11
test/dm/sound.c
View File

@ -26,8 +26,19 @@ static int dm_test_sound(struct unit_test_state *uts)
ut_asserteq(0, sandbox_get_setup_called(dev));
ut_assertok(sound_beep(dev, 1, 100));
ut_asserteq(48, sandbox_get_sound_count(dev));
ut_asserteq(4560, sandbox_get_sound_sum(dev));
ut_assertok(sound_beep(dev, 1, 100));
ut_asserteq(96, sandbox_get_sound_count(dev));
ut_asserteq(9120, sandbox_get_sound_sum(dev));
ut_assertok(sound_beep(dev, 1, -100));
ut_asserteq(144, sandbox_get_sound_count(dev));
ut_asserteq(9120, sandbox_get_sound_sum(dev));
ut_assertok(sound_beep(dev, 1, 0));
ut_asserteq(192, sandbox_get_sound_count(dev));
ut_asserteq(9120, sandbox_get_sound_sum(dev));
ut_assertok(sound_beep(dev, 1, INT_MAX));
ut_asserteq(240, sandbox_get_sound_count(dev));
ut_asserteq(9120, sandbox_get_sound_sum(dev));
ut_asserteq(false, sandbox_get_sound_active(dev));