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[PATCH 3/3] tests/qtest/npcm7xx_rng-test: dump random data on failure
From: |
Havard Skinnemoen |
Subject: |
[PATCH 3/3] tests/qtest/npcm7xx_rng-test: dump random data on failure |
Date: |
Mon, 2 Nov 2020 17:14:57 -0800 |
Dump the collected random data after a randomness test failure.
Note that you won't actually see this unless you add
g_test_set_nonfatal_assertions() back in.
Signed-off-by: Havard Skinnemoen <hskinnemoen@google.com>
---
tests/qtest/npcm7xx_rng-test.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/tests/qtest/npcm7xx_rng-test.c b/tests/qtest/npcm7xx_rng-test.c
index d7e42cf062..09111d640c 100644
--- a/tests/qtest/npcm7xx_rng-test.c
+++ b/tests/qtest/npcm7xx_rng-test.c
@@ -20,6 +20,7 @@
#include "libqtest-single.h"
#include "qemu/bitops.h"
+#include "qemu-common.h"
#define RNG_BASE_ADDR 0xf000b000
@@ -36,6 +37,13 @@
/* Number of bits to collect for randomness tests. */
#define TEST_INPUT_BITS (128)
+static void dump_buf_if_failed(const uint8_t *buf, size_t size)
+{
+ if (g_test_failed()) {
+ qemu_hexdump(stderr, "", buf, size);
+ }
+}
+
static void rng_writeb(unsigned int offset, uint8_t value)
{
writeb(RNG_BASE_ADDR + offset, value);
@@ -188,6 +196,7 @@ static void test_continuous_monobit(void)
}
g_assert_cmpfloat(calc_monobit_p(buf, sizeof(buf)), >, 0.01);
+ dump_buf_if_failed(buf, sizeof(buf));
}
/*
@@ -209,6 +218,7 @@ static void test_continuous_runs(void)
}
g_assert_cmpfloat(calc_runs_p(buf.l, sizeof(buf) * BITS_PER_BYTE), >,
0.01);
+ dump_buf_if_failed(buf.c, sizeof(buf));
}
/*
@@ -230,6 +240,7 @@ static void test_first_byte_monobit(void)
}
g_assert_cmpfloat(calc_monobit_p(buf, sizeof(buf)), >, 0.01);
+ dump_buf_if_failed(buf, sizeof(buf));
}
/*
@@ -254,6 +265,7 @@ static void test_first_byte_runs(void)
}
g_assert_cmpfloat(calc_runs_p(buf.l, sizeof(buf) * BITS_PER_BYTE), >,
0.01);
+ dump_buf_if_failed(buf.c, sizeof(buf));
}
int main(int argc, char **argv)
--
2.29.1.341.ge80a0c044ae-goog