5079590438

Committed 25 May 2023 12:28PM UTC coverage: 92.228% (+0.5%) from 91.723%

Build # 5079590438

Build Type

Pull #3502

github

Pull Request Pull Request #3502: Apply clang-format to the codebase

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89.8

/src/tests/test_zfec.cpp

/*
* (C) 2021 Jack Lloyd
*
* Botan is released under the Simplified BSD License (see license.txt)
*/

#include "tests.h"

#if defined(BOTAN_HAS_ZFEC)

   #include <botan/zfec.h>

namespace Botan_Tests {

class ZFEC_KAT final : public Text_Based_Test {
   public:
      ZFEC_KAT() : Text_Based_Test("zfec.vec", "K,N,Data,Code") {}

      Test::Result run_one_test(const std::string& /*header*/, const VarMap& vars) override {
         const size_t K = vars.get_req_sz("K");
         const size_t N = vars.get_req_sz("N");

         const std::vector<uint8_t> input = vars.get_req_bin("Data");
         const std::vector<uint8_t> expected = vars.get_req_bin("Code");

         if(input.size() % K != 0) {
            throw Test_Error("ZFEC input is not a multiple of K bytes");
         }

         Test::Result result("ZFEC encoding/decoding");

         const size_t share_size = input.size() / K;

         if(expected.size() != share_size * (N - K)) {
            throw Test_Error("ZFEC output does not coorespond with K/N");
         }

         std::map<size_t, const uint8_t*> shares;

         for(size_t i = 0; i != N; ++i) {
            const uint8_t* expected_share = nullptr;
            if(i < K)
               expected_share = &input[share_size * i];
            else
               expected_share = &expected[share_size * (i - K)];

            shares.insert(std::make_pair(i, expected_share));
         }

         Botan::ZFEC zfec(K, N);

         const std::string zfec_impl = zfec.provider();

         std::set<size_t> shares_encoded;

         auto zfec_enc_fn = [&](size_t share, const uint8_t block[], size_t len) {
            if(shares_encoded.insert(share).second == false) {
               result.test_failure("Encoding returned the same share twice");
            }

            result.test_lt("ZFEC enc share in range", share, N);

            result.test_eq(zfec_impl.c_str(), "share " + std::to_string(share), block, len, shares[share], share_size);
         };

         zfec.encode(input.data(), input.size(), zfec_enc_fn);

         result.test_eq("Correct number of shares encoded", shares_encoded.size(), N);

         // First test full decoding:
         std::set<size_t> shares_decoded;

         auto zfec_dec_fn = [&](size_t share, const uint8_t block[], size_t len) {
            if(shares_decoded.insert(share).second == false) {
               result.test_failure("Decoding returned the same share twice");
            }

            result.test_lt("ZFEC dec share in range", share, K);

            result.test_eq(
               zfec_impl.c_str(), "share " + std::to_string(share), block, len, &input[share * share_size], share_size);
         };

         zfec.decode_shares(shares, share_size, zfec_dec_fn);

         result.test_eq("Correct number of shares decoded", shares_decoded.size(), K);

         // Now remove N-K shares:
         shares_decoded.clear();

         while(shares.size() != K) {
            const size_t idx = rng().next_byte();
            shares.erase(idx);
         }

         zfec.decode_shares(shares, share_size, zfec_dec_fn);

         result.test_eq("Correct number of shares decoded", shares_decoded.size(), K);

         return result;
      }
};

BOTAN_REGISTER_TEST("zfec", "zfec", ZFEC_KAT);

}

#endif

1	/*
2	* (C) 2021 Jack Lloyd
3	*
4	* Botan is released under the Simplified BSD License (see license.txt)
5	*/
6
7	#include "tests.h"
8
9	#if defined(BOTAN_HAS_ZFEC)
10
11	#include <botan/zfec.h>
12
13	namespace Botan_Tests {
14
15	class ZFEC_KAT final : public Text_Based_Test {	×
16	public:
17	ZFEC_KAT() : Text_Based_Test("zfec.vec", "K,N,Data,Code") {}	2✔
18
19	Test::Result run_one_test(const std::string& /header/, const VarMap& vars) override {	243✔
20	const size_t K = vars.get_req_sz("K");	243✔
21	const size_t N = vars.get_req_sz("N");	243✔
22
23	const std::vector<uint8_t> input = vars.get_req_bin("Data");	243✔
24	const std::vector<uint8_t> expected = vars.get_req_bin("Code");	243✔
25
26	if(input.size() % K != 0) {	243✔
27	throw Test_Error("ZFEC input is not a multiple of K bytes");	×
28	}
29
30	Test::Result result("ZFEC encoding/decoding");	243✔
31
32	const size_t share_size = input.size() / K;	243✔
33
34	if(expected.size() != share_size * (N - K)) {	243✔
35	throw Test_Error("ZFEC output does not coorespond with K/N");	×
36	}
37
38	std::map<size_t, const uint8_t*> shares;	243✔
39
40	for(size_t i = 0; i != N; ++i) {	2,673✔
41	const uint8_t* expected_share = nullptr;	2,430✔
42	if(i < K)	2,430✔
43	expected_share = &input[share_size * i];	1,215✔
44	else
45	expected_share = &expected[share_size * (i - K)];	1,215✔
46
47	shares.insert(std::make_pair(i, expected_share));	2,430✔
48	}
49
50	Botan::ZFEC zfec(K, N);	243✔
51
52	const std::string zfec_impl = zfec.provider();	243✔
53
54	std::set<size_t> shares_encoded;	243✔
55
56	auto zfec_enc_fn = [&](size_t share, const uint8_t block[], size_t len) {	2,673✔
57	if(shares_encoded.insert(share).second == false) {	2,430✔
58	result.test_failure("Encoding returned the same share twice");	×
59	}
60
61	result.test_lt("ZFEC enc share in range", share, N);	2,430✔
62
63	result.test_eq(zfec_impl.c_str(), "share " + std::to_string(share), block, len, shares[share], share_size);	4,860✔
64	};	2,430✔
65
66	zfec.encode(input.data(), input.size(), zfec_enc_fn);	243✔
67
68	result.test_eq("Correct number of shares encoded", shares_encoded.size(), N);	243✔
69
70	// First test full decoding:
71	std::set<size_t> shares_decoded;	243✔
72
73	auto zfec_dec_fn = [&](size_t share, const uint8_t block[], size_t len) {	2,673✔
74	if(shares_decoded.insert(share).second == false) {	2,430✔
75	result.test_failure("Decoding returned the same share twice");	×
76	}
77
78	result.test_lt("ZFEC dec share in range", share, K);	2,430✔
79
80	result.test_eq(	2,430✔
81	zfec_impl.c_str(), "share " + std::to_string(share), block, len, &input[share * share_size], share_size);	4,860✔
82	};	2,430✔
83
84	zfec.decode_shares(shares, share_size, zfec_dec_fn);	243✔
85
86	result.test_eq("Correct number of shares decoded", shares_decoded.size(), K);	243✔
87
88	// Now remove N-K shares:
89	shares_decoded.clear();	243✔
90
91	while(shares.size() != K) {	43,563✔
92	const size_t idx = rng().next_byte();	43,320✔
93	shares.erase(idx);	43,320✔
94	}
95
96	zfec.decode_shares(shares, share_size, zfec_dec_fn);	243✔
97
98	result.test_eq("Correct number of shares decoded", shares_decoded.size(), K);	243✔
99
100	return result;	243✔
101	}	972✔
102	};
103
104	BOTAN_REGISTER_TEST("zfec", "zfec", ZFEC_KAT);
105
106	}
107
108	#endif

randombit / botan / 5079590438

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