5134090420

Committed 31 May 2023 03:12PM UTC coverage: 91.721% (-0.3%) from 91.995%

Build # 5134090420

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push

github

Committed by

randombit

Commit Message

Merge GH #3565 Disable noisy/pointless pylint warnings

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83.49

/src/tests/test_compression.cpp

/*
* (C) 2015 Jack Lloyd
*
* Botan is released under the Simplified BSD License (see license.txt)
*/

#include "tests.h"

#if defined(BOTAN_HAS_COMPRESSION)
   #include <botan/compression.h>
#endif

namespace Botan_Tests {

#if defined(BOTAN_HAS_COMPRESSION)

namespace {

const char* text_str =
   "'Twas brillig, and the slithy toves"
   "Did gyre and gimble in the wabe:"
   "All mimsy were the borogoves,"
   "And the mome raths outgrabe."

   "'Beware the Jabberwock, my son!"
   "The jaws that bite, the claws that catch!"
   "Beware the Jubjub bird, and shun"
   "The frumious Bandersnatch!'"

   "He took his vorpal sword in hand;"
   "Long time the manxome foe he sought-"
   "So rested he by the Tumtum tree"
   "And stood awhile in thought."

   "And, as in uffish thought he stood,"
   "The Jabberwock, with eyes of flame,"
   "Came whiffling through the tulgey wood,"
   "And burbled as it came!"

   "One, two! One, two! And through and through"
   "The vorpal blade went snicker-snack!"
   "He left it dead, and with its head"
   "He went galumphing back."

   "'And hast thou slain the Jabberwock?"
   "Come to my arms, my beamish boy!"
   "O frabjous day! Callooh! Callay!'"
   "He chortled in his joy."

   "'Twas brillig, and the slithy toves"
   "Did gyre and gimble in the wabe:"
   "All mimsy were the borogoves,"
   "And the mome raths outgrabe.";

class Compression_Tests final : public Test {
   public:
      std::vector<Test::Result> run() override {
         std::vector<Test::Result> results;
         const size_t text_len = std::strlen(text_str);

         for(std::string algo : {"zlib", "deflate", "gzip", "bz2", "lzma"}) {
            try {
               Test::Result result(algo + " compression");

               result.start_timer();

               auto c = Botan::Compression_Algorithm::create(algo);
               auto d = Botan::Decompression_Algorithm::create(algo);

               if(!c || !d) {
                  result.note_missing(algo);
                  continue;
               }

               result.test_ne("Not the same name", c->name(), d->name());

               const Botan::secure_vector<uint8_t> empty;
               const Botan::secure_vector<uint8_t> all_zeros(text_len, 0);
               const Botan::secure_vector<uint8_t> random_binary = Test::rng().random_vec(text_len);
               const Botan::secure_vector<uint8_t> short_text = {'f', 'o', 'o', '\n'};

               const uint8_t* textb = reinterpret_cast<const uint8_t*>(text_str);
               const Botan::secure_vector<uint8_t> text(textb, textb + text_len);

               const size_t c1_e = run_compression(result, 1, *c, *d, empty);
               const size_t c9_e = run_compression(result, 9, *c, *d, empty);
               const size_t c1_z = run_compression(result, 1, *c, *d, all_zeros);
               const size_t c9_z = run_compression(result, 9, *c, *d, all_zeros);
               const size_t c1_r = run_compression(result, 1, *c, *d, random_binary);
               const size_t c9_r = run_compression(result, 9, *c, *d, random_binary);
               const size_t c1_t = run_compression(result, 1, *c, *d, text);
               const size_t c9_t = run_compression(result, 9, *c, *d, text);
               const size_t c1_s = run_compression(result, 1, *c, *d, short_text);
               const size_t c9_s = run_compression(result, 9, *c, *d, short_text);

               result.test_gte("Empty input L1 compresses to non-empty output", c1_e, 1);
               result.test_gte("Empty input L9 compresses to non-empty output", c9_e, 1);

               result.test_gte("Level 9 compresses empty at least as well as level 1", c1_e, c9_e);
               result.test_gte("Level 9 compresses zeros at least as well as level 1", c1_z, c9_z);
               result.test_gte("Level 9 compresses random at least as well as level 1", c1_r, c9_r);
               result.test_gte("Level 9 compresses text at least as well as level 1", c1_t, c9_t);
               result.test_gte("Level 9 compresses short text at least as well as level 1", c1_s, c9_s);

               result.test_lt("Zeros compresses much better than text", c1_z / 8, c1_t);
               result.test_lt("Text compresses much better than random", c1_t / 2, c1_r);

               result.end_timer();

               results.emplace_back(result);
            } catch(std::exception& e) {
               results.emplace_back(Test::Result::Failure("testing " + algo, e.what()));
            }
         }

         return results;
      }

   private:
      // Returns # of bytes of compressed message
      size_t run_compression(Test::Result& result,
                             size_t level,
                             Botan::Compression_Algorithm& c,
                             Botan::Decompression_Algorithm& d,
                             const Botan::secure_vector<uint8_t>& msg) {
         Botan::secure_vector<uint8_t> compressed(2 * msg.size());

         for(bool with_flush : {true, false}) {
            try {
               compressed = msg;

               c.start(level);
               c.update(compressed, 0, false);

               if(with_flush) {
                  Botan::secure_vector<uint8_t> flush_bits;
                  c.update(flush_bits, 0, true);
                  compressed += flush_bits;
               }

               Botan::secure_vector<uint8_t> final_bits;
               c.finish(final_bits);
               compressed += final_bits;

               Botan::secure_vector<uint8_t> decompressed = compressed;
               d.start();
               d.update(decompressed);

               Botan::secure_vector<uint8_t> final_outputs;
               d.finish(final_outputs);

               decompressed += final_outputs;

               result.test_eq("compression round tripped", msg, decompressed);
            } catch(Botan::Exception& e) {
               result.test_failure(e.what());
            }
         }

         return compressed.size();
      }
};

BOTAN_REGISTER_TEST("compression", "compression_tests", Compression_Tests);

class CompressionCreate_Tests final : public Test {
   public:
      std::vector<Test::Result> run() override {
         std::vector<Test::Result> results;

         for(std::string algo : {"zlib", "deflate", "gzip", "bz2", "lzma"}) {
            try {
               Test::Result result(algo + " create compression");

               auto c1 = Botan::Compression_Algorithm::create(algo);
               auto d1 = Botan::Decompression_Algorithm::create(algo);

               if(!c1 || !d1) {
                  result.note_missing(algo);
                  continue;
               }
               result.test_ne("Not the same name after create", c1->name(), d1->name());

               auto c2 = Botan::Compression_Algorithm::create_or_throw(algo);
               auto d2 = Botan::Decompression_Algorithm::create_or_throw(algo);

               if(!c2 || !d2) {
                  result.note_missing(algo);
                  continue;
               }
               result.test_ne("Not the same name after create_or_throw", c2->name(), d2->name());

               results.emplace_back(result);
            } catch(std::exception& e) {
               results.emplace_back(Test::Result::Failure("testing " + algo, e.what()));
            }
         }

         {
            Test::Result result("create invalid compression");
            result.test_throws("lookup error", "Unavailable Compression bogocompress", [&]() {
               Botan::Compression_Algorithm::create_or_throw("bogocompress");
            });
            result.test_throws("lookup error", "Unavailable Decompression bogocompress", [&]() {
               Botan::Decompression_Algorithm::create_or_throw("bogocompress");
            });
            results.emplace_back(result);
         }

         return results;
      }
};

BOTAN_REGISTER_TEST("compression", "create_compression", CompressionCreate_Tests);

}  // namespace

#endif

}  // namespace Botan_Tests

1	/*
2	* (C) 2015 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_COMPRESSION)
10	#include <botan/compression.h>
11	#endif
12
13	namespace Botan_Tests {
14
15	#if defined(BOTAN_HAS_COMPRESSION)
16
17	namespace {
18
19	const char* text_str =
20	"'Twas brillig, and the slithy toves"
21	"Did gyre and gimble in the wabe:"
22	"All mimsy were the borogoves,"
23	"And the mome raths outgrabe."
24
25	"'Beware the Jabberwock, my son!"
26	"The jaws that bite, the claws that catch!"
27	"Beware the Jubjub bird, and shun"
28	"The frumious Bandersnatch!'"
29
30	"He took his vorpal sword in hand;"
31	"Long time the manxome foe he sought-"
32	"So rested he by the Tumtum tree"
33	"And stood awhile in thought."
34
35	"And, as in uffish thought he stood,"
36	"The Jabberwock, with eyes of flame,"
37	"Came whiffling through the tulgey wood,"
38	"And burbled as it came!"
39
40	"One, two! One, two! And through and through"
41	"The vorpal blade went snicker-snack!"
42	"He left it dead, and with its head"
43	"He went galumphing back."
44
45	"'And hast thou slain the Jabberwock?"
46	"Come to my arms, my beamish boy!"
47	"O frabjous day! Callooh! Callay!'"
48	"He chortled in his joy."
49
50	"'Twas brillig, and the slithy toves"
51	"Did gyre and gimble in the wabe:"
52	"All mimsy were the borogoves,"
53	"And the mome raths outgrabe.";
54
55	class Compression_Tests final : public Test {	×
56	public:
57	std::vector<Test::Result> run() override {	1✔
58	std::vector<Test::Result> results;	1✔
59	const size_t text_len = std::strlen(text_str);	1✔
60
61	for(std::string algo : {"zlib", "deflate", "gzip", "bz2", "lzma"}) {	6✔
62	try {	5✔
63	Test::Result result(algo + " compression");	5✔
64
65	result.start_timer();	5✔
66
67	auto c = Botan::Compression_Algorithm::create(algo);	5✔
68	auto d = Botan::Decompression_Algorithm::create(algo);	5✔
69
70	if(!c \|\| !d) {	5✔
71	result.note_missing(algo);	×
72	continue;	×
73	}
74
75	result.test_ne("Not the same name", c->name(), d->name());	15✔
76
77	const Botan::secure_vector<uint8_t> empty;	5✔
78	const Botan::secure_vector<uint8_t> all_zeros(text_len, 0);	5✔
79	const Botan::secure_vector<uint8_t> random_binary = Test::rng().random_vec(text_len);	5✔
80	const Botan::secure_vector<uint8_t> short_text = {'f', 'o', 'o', '\n'};	5✔
81
82	const uint8_t* textb = reinterpret_cast<const uint8_t*>(text_str);	5✔
83	const Botan::secure_vector<uint8_t> text(textb, textb + text_len);	5✔
84
85	const size_t c1_e = run_compression(result, 1, c, d, empty);	5✔
86	const size_t c9_e = run_compression(result, 9, c, d, empty);	5✔
87	const size_t c1_z = run_compression(result, 1, c, d, all_zeros);	5✔
88	const size_t c9_z = run_compression(result, 9, c, d, all_zeros);	5✔
89	const size_t c1_r = run_compression(result, 1, c, d, random_binary);	5✔
90	const size_t c9_r = run_compression(result, 9, c, d, random_binary);	5✔
91	const size_t c1_t = run_compression(result, 1, c, d, text);	5✔
92	const size_t c9_t = run_compression(result, 9, c, d, text);	5✔
93	const size_t c1_s = run_compression(result, 1, c, d, short_text);	5✔
94	const size_t c9_s = run_compression(result, 9, c, d, short_text);	5✔
95
96	result.test_gte("Empty input L1 compresses to non-empty output", c1_e, 1);	5✔
97	result.test_gte("Empty input L9 compresses to non-empty output", c9_e, 1);	5✔
98
99	result.test_gte("Level 9 compresses empty at least as well as level 1", c1_e, c9_e);	5✔
100	result.test_gte("Level 9 compresses zeros at least as well as level 1", c1_z, c9_z);	5✔
101	result.test_gte("Level 9 compresses random at least as well as level 1", c1_r, c9_r);	5✔
102	result.test_gte("Level 9 compresses text at least as well as level 1", c1_t, c9_t);	5✔
103	result.test_gte("Level 9 compresses short text at least as well as level 1", c1_s, c9_s);	5✔
104
105	result.test_lt("Zeros compresses much better than text", c1_z / 8, c1_t);	5✔
106	result.test_lt("Text compresses much better than random", c1_t / 2, c1_r);	5✔
107
108	result.end_timer();	5✔
109
110	results.emplace_back(result);	5✔
111	} catch(std::exception& e) {	30✔
112	results.emplace_back(Test::Result::Failure("testing " + algo, e.what()));	×
113	}	×
114	}	5✔
115
116	return results;	1✔
117	}	×
118
119	private:
120	// Returns # of bytes of compressed message
121	size_t run_compression(Test::Result& result,	50✔
122	size_t level,
123	Botan::Compression_Algorithm& c,
124	Botan::Decompression_Algorithm& d,
125	const Botan::secure_vector<uint8_t>& msg) {
126	Botan::secure_vector<uint8_t> compressed(2 * msg.size());	50✔
127
128	for(bool with_flush : {true, false}) {	150✔
129	try {	100✔
130	compressed = msg;	100✔
131
132	c.start(level);	100✔
133	c.update(compressed, 0, false);	100✔
134
135	if(with_flush) {	100✔
136	Botan::secure_vector<uint8_t> flush_bits;	50✔
137	c.update(flush_bits, 0, true);	50✔
138	compressed += flush_bits;	50✔
139	}	50✔
140
141	Botan::secure_vector<uint8_t> final_bits;	100✔
142	c.finish(final_bits);	100✔
143	compressed += final_bits;	100✔
144
145	Botan::secure_vector<uint8_t> decompressed = compressed;	100✔
146	d.start();	100✔
147	d.update(decompressed);	100✔
148
149	Botan::secure_vector<uint8_t> final_outputs;	100✔
150	d.finish(final_outputs);	100✔
151
152	decompressed += final_outputs;	100✔
153
154	result.test_eq("compression round tripped", msg, decompressed);	200✔
155	} catch(Botan::Exception& e) {	300✔
156	result.test_failure(e.what());	×
157	}	×
158	}
159
160	return compressed.size();	50✔
161	}	50✔
162	};
163
164	BOTAN_REGISTER_TEST("compression", "compression_tests", Compression_Tests);
165
166	class CompressionCreate_Tests final : public Test {	×
167	public:
168	std::vector<Test::Result> run() override {	1✔
169	std::vector<Test::Result> results;	1✔
170
171	for(std::string algo : {"zlib", "deflate", "gzip", "bz2", "lzma"}) {	6✔
172	try {	5✔
173	Test::Result result(algo + " create compression");	5✔
174
175	auto c1 = Botan::Compression_Algorithm::create(algo);	5✔
176	auto d1 = Botan::Decompression_Algorithm::create(algo);	5✔
177
178	if(!c1 \|\| !d1) {	5✔
179	result.note_missing(algo);	×
180	continue;	×
181	}
182	result.test_ne("Not the same name after create", c1->name(), d1->name());	15✔
183
184	auto c2 = Botan::Compression_Algorithm::create_or_throw(algo);	5✔
185	auto d2 = Botan::Decompression_Algorithm::create_or_throw(algo);	5✔
186
187	if(!c2 \|\| !d2) {	5✔
188	result.note_missing(algo);	×
189	continue;	×
190	}
191	result.test_ne("Not the same name after create_or_throw", c2->name(), d2->name());	15✔
192
193	results.emplace_back(result);	5✔
194	} catch(std::exception& e) {	20✔
195	results.emplace_back(Test::Result::Failure("testing " + algo, e.what()));	×
196	}	×
197	}	5✔
198
199	{	1✔
200	Test::Result result("create invalid compression");	1✔
201	result.test_throws("lookup error", "Unavailable Compression bogocompress", [&]() {	3✔
202	Botan::Compression_Algorithm::create_or_throw("bogocompress");	1✔
203	});	×
204	result.test_throws("lookup error", "Unavailable Decompression bogocompress", [&]() {	3✔
205	Botan::Decompression_Algorithm::create_or_throw("bogocompress");	1✔
206	});	×
207	results.emplace_back(result);	1✔
208	}	1✔
209
210	return results;	1✔
211	}	×
212	};
213
214	BOTAN_REGISTER_TEST("compression", "create_compression", CompressionCreate_Tests);
215
216	} // namespace
217
218	#endif
219
220	} // namespace Botan_Tests

randombit / botan / 5134090420

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