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[test] add 'otPlatEntropyGet()' using TRNG for unit test (#5945)

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This commit is contained in:
Abtin Keshavarzian
2020-12-12 11:05:21 -08:00
committed by GitHub
parent 02aab70419
commit 89cc2ef432
1 changed files with 20 additions and 0 deletions
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tests/unit/test_platform.cpp
+20
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@@ -28,6 +28,7 @@
#include "test_platform.h"
#include <stdio.h>
#include <sys/time.h>
bool g_testPlatAlarmSet = false;
@@ -380,10 +381,29 @@ otError otPlatEntropyGet(uint8_t *aOutput, uint16_t aOutputLength)
VerifyOrExit(aOutput, error = OT_ERROR_INVALID_ARGS);
#if __SANITIZE_ADDRESS__ == 0
{
FILE * file = nullptr;
size_t readLength;
file = fopen("/dev/urandom", "rb");
VerifyOrExit(file != nullptr, error = OT_ERROR_FAILED);
readLength = fread(aOutput, 1, aOutputLength, file);
if (readLength != aOutputLength)
{
error = OT_ERROR_FAILED;
}
fclose(file);
}
#else
for (uint16_t length = 0; length < aOutputLength; length++)
{
aOutput[length] = (uint8_t)rand();
}
#endif
exit:
return error;