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4ee08eb115
Add a unit test for testing the rng uclass functionality using the sandbox rng driver. Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org> Reviewed-by: Patrice Chotard <patrice.chotard@st.com> Reviewed-by: Simon Glass <sjg@chromium.org>
27 lines
639 B
C
27 lines
639 B
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (c) 2019, Linaro Limited
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*/
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#include <common.h>
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#include <dm.h>
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#include <rng.h>
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#include <dm/test.h>
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#include <test/ut.h>
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/* Basic test of the rng uclass */
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static int dm_test_rng_read(struct unit_test_state *uts)
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{
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unsigned long rand1 = 0, rand2 = 0;
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struct udevice *dev;
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ut_assertok(uclass_get_device(UCLASS_RNG, 0, &dev));
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ut_assertnonnull(dev);
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ut_assertok(dm_rng_read(dev, &rand1, sizeof(rand1)));
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ut_assertok(dm_rng_read(dev, &rand2, sizeof(rand2)));
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ut_assert(rand1 != rand2);
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return 0;
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}
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DM_TEST(dm_test_rng_read, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
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