[PATCH 7/7] test: rng: Add basic test for random number generator(rng) uclass

[Patrice CHOTARD]

On 12/4/19 12:53 PM, Sughosh Ganu wrote:
> Add a unit test for testing the rng uclass functionality using the
> sandbox rng driver.
>
> Signed-off-by: Sughosh Ganu <sughosh.ganu at linaro.org>
> ---
>  test/dm/Makefile |  1 +
>  test/dm/rng.c    | 26 ++++++++++++++++++++++++++
>  2 files changed, 27 insertions(+)
>  create mode 100644 test/dm/rng.c
>
> diff --git a/test/dm/Makefile b/test/dm/Makefile
> index 0c2fd5c..f61bf65 100644
> --- a/test/dm/Makefile
> +++ b/test/dm/Makefile
> @@ -65,4 +65,5 @@ obj-$(CONFIG_VIRTIO_SANDBOX) += virtio.o
>  obj-$(CONFIG_DMA) += dma.o
>  obj-$(CONFIG_DM_MDIO) += mdio.o
>  obj-$(CONFIG_DM_MDIO_MUX) += mdio_mux.o
> +obj-$(CONFIG_DM_RNG) += rng.o
>  endif
> diff --git a/test/dm/rng.c b/test/dm/rng.c
> new file mode 100644
> index 0000000..879e80a
> --- /dev/null
> +++ b/test/dm/rng.c
> @@ -0,0 +1,26 @@
> +// SPDX-License-Identifier: GPL-2.0-or-later
> +/*
> + * Copyright (c) 2019, Linaro Limited
> + */
> +
> +#include <common.h>
> +#include <dm.h>
> +#include <rng.h>
> +#include <dm/test.h>
> +#include <test/ut.h>
> +
> +/* Basic test of the rng uclass */
> +static int dm_test_rng_read(struct unit_test_state *uts)
> +{
> +	unsigned long val1 = 0, val2 = 0;
> +	struct udevice *dev;
> +
> +	ut_assertok(uclass_get_device(UCLASS_RNG, 0, &dev));
> +	ut_assertnonnull(dev);
> +	dm_rng_read(dev, &val1, sizeof(val1));
> +	dm_rng_read(dev, &val2, sizeof(val2));
> +	ut_assert(val1 != val2);
> +
> +	return 0;
> +}
> +DM_TEST(dm_test_rng_read, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);

Reviewed-by: Patrice Chotard <patrice.chotard at st.com>

Thanks