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tests: improve coverage for s2n_stream_cipher_null #5268

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Merged
merged 6 commits into from
May 6, 2025
Merged

tests: improve coverage for s2n_stream_cipher_null #5268

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628e701
tests: improve coverage for s2n_stream_cipher_null
wafuwafu13 Apr 23, 2025
338684d
tests: define session_key for s2n_stream_cipher_null
wafuwafu13 Apr 25, 2025
135ecd2
test: use separate session_key per test
wafuwafu13 Apr 29, 2025
8cea5cc
Merge branch 'main' into cipher-null-test
maddeleine Apr 29, 2025
1498aaf
Merge branch 'main' into cipher-null-test
lrstewart May 2, 2025
4c36d1b
Merge branch 'main' into cipher-null-test
lrstewart May 6, 2025
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33 changes: 30 additions & 3 deletions tests/unit/s2n_stream_cipher_null_test.c
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Original file line number Diff line number Diff line change
Expand Up @@ -30,7 +30,8 @@ int main(int argc, char **argv)
EXPECT_SUCCESS(s2n_blob_init(&in, array, 9));
struct s2n_blob out = { 0 };
EXPECT_SUCCESS(s2n_blob_init(&out, array, 9));
EXPECT_SUCCESS(s2n_stream_cipher_null_endecrypt(NULL, &in, &out));
struct s2n_session_key session_key = { 0 };
EXPECT_SUCCESS(s2n_stream_cipher_null_endecrypt(&session_key, &in, &out));
};

/* Test that in size > out size fails */
Expand All @@ -40,7 +41,8 @@ int main(int argc, char **argv)
EXPECT_SUCCESS(s2n_blob_init(&in, array, 9));
struct s2n_blob out = { 0 };
EXPECT_SUCCESS(s2n_blob_init(&out, array, 8));
EXPECT_FAILURE(s2n_stream_cipher_null_endecrypt(NULL, &in, &out));
struct s2n_session_key session_key = { 0 };
EXPECT_FAILURE(s2n_stream_cipher_null_endecrypt(&session_key, &in, &out));
};

/* Test that in is copied to out when they are different */
Expand All @@ -52,9 +54,34 @@ int main(int argc, char **argv)
struct s2n_blob out = { 0 };
EXPECT_SUCCESS(s2n_blob_init(&out, out_array, 9));
EXPECT_BYTEARRAY_NOT_EQUAL(in_array, out_array, out.size);
EXPECT_SUCCESS(s2n_stream_cipher_null_endecrypt(NULL, &in, &out));
struct s2n_session_key session_key = { 0 };
EXPECT_SUCCESS(s2n_stream_cipher_null_endecrypt(&session_key, &in, &out));
EXPECT_BYTEARRAY_EQUAL(in_array, out_array, out.size);
};

/* Test that null cipher is always available */
{
EXPECT_TRUE(s2n_stream_cipher_null_available());
};

/* Test that get_key always returns success */
{
struct s2n_blob in = { 0 };
struct s2n_session_key session_key = { 0 };
EXPECT_OK(s2n_stream_cipher_null_get_key(&session_key, &in));
};

/* Test that destroy_key always returns success */
{
struct s2n_session_key session_key = { 0 };
EXPECT_OK(s2n_stream_cipher_null_destroy_key(&session_key));
};

/* Test that init always returns success */
{
struct s2n_session_key session_key = { 0 };
EXPECT_OK(s2n_stream_cipher_null_init(&session_key));
};

END_TEST();
}
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