/ src / test / getarg_tests.cpp
getarg_tests.cpp
  1  // Copyright (c) 2012-2022 The Bitcoin Core developers
  2  // Distributed under the MIT software license, see the accompanying
  3  // file COPYING or http://www.opensource.org/licenses/mit-license.php.
  4  
  5  #include <common/args.h>
  6  #include <common/settings.h>
  7  #include <logging.h>
  8  #include <test/util/setup_common.h>
  9  #include <univalue.h>
 10  #include <util/strencodings.h>
 11  
 12  #include <limits>
 13  #include <string>
 14  #include <utility>
 15  #include <vector>
 16  
 17  #include <boost/test/unit_test.hpp>
 18  
 19  BOOST_FIXTURE_TEST_SUITE(getarg_tests, BasicTestingSetup)
 20  
 21  void ResetArgs(ArgsManager& local_args, const std::string& strArg)
 22  {
 23      std::vector<std::string> vecArg;
 24      if (strArg.size()) {
 25          vecArg = SplitString(strArg, ' ');
 26      }
 27  
 28      // Insert dummy executable name:
 29      vecArg.insert(vecArg.begin(), "testbitcoin");
 30  
 31      // Convert to char*:
 32      std::vector<const char*> vecChar;
 33      vecChar.reserve(vecArg.size());
 34      for (const std::string& s : vecArg)
 35          vecChar.push_back(s.c_str());
 36  
 37      std::string error;
 38      BOOST_CHECK(local_args.ParseParameters(vecChar.size(), vecChar.data(), error));
 39  }
 40  
 41  void SetupArgs(ArgsManager& local_args, const std::vector<std::pair<std::string, unsigned int>>& args)
 42  {
 43      for (const auto& arg : args) {
 44          local_args.AddArg(arg.first, "", arg.second, OptionsCategory::OPTIONS);
 45      }
 46  }
 47  
 48  // Test behavior of GetArg functions when string, integer, and boolean types
 49  // are specified in the settings.json file. GetArg functions are convenience
 50  // functions. The GetSetting method can always be used instead of GetArg
 51  // methods to retrieve original values, and there's not always an objective
 52  // answer to what GetArg behavior is best in every case. This test makes sure
 53  // there's test coverage for whatever the current behavior is, so it's not
 54  // broken or changed unintentionally.
 55  BOOST_AUTO_TEST_CASE(setting_args)
 56  {
 57      ArgsManager args;
 58      SetupArgs(args, {{"-foo", ArgsManager::ALLOW_ANY}});
 59  
 60      auto set_foo = [&](const common::SettingsValue& value) {
 61        args.LockSettings([&](common::Settings& settings) {
 62          settings.rw_settings["foo"] = value;
 63        });
 64      };
 65  
 66      set_foo("str");
 67      BOOST_CHECK_EQUAL(args.GetSetting("foo").write(), "\"str\"");
 68      BOOST_CHECK_EQUAL(args.GetArg("foo", "default"), "str");
 69      BOOST_CHECK_EQUAL(args.GetIntArg("foo", 100), 0);
 70      BOOST_CHECK_EQUAL(args.GetBoolArg("foo", true), false);
 71      BOOST_CHECK_EQUAL(args.GetBoolArg("foo", false), false);
 72  
 73      set_foo("99");
 74      BOOST_CHECK_EQUAL(args.GetSetting("foo").write(), "\"99\"");
 75      BOOST_CHECK_EQUAL(args.GetArg("foo", "default"), "99");
 76      BOOST_CHECK_EQUAL(args.GetIntArg("foo", 100), 99);
 77      BOOST_CHECK_EQUAL(args.GetBoolArg("foo", true), true);
 78      BOOST_CHECK_EQUAL(args.GetBoolArg("foo", false), true);
 79  
 80      set_foo("3.25");
 81      BOOST_CHECK_EQUAL(args.GetSetting("foo").write(), "\"3.25\"");
 82      BOOST_CHECK_EQUAL(args.GetArg("foo", "default"), "3.25");
 83      BOOST_CHECK_EQUAL(args.GetIntArg("foo", 100), 3);
 84      BOOST_CHECK_EQUAL(args.GetBoolArg("foo", true), true);
 85      BOOST_CHECK_EQUAL(args.GetBoolArg("foo", false), true);
 86  
 87      set_foo("0");
 88      BOOST_CHECK_EQUAL(args.GetSetting("foo").write(), "\"0\"");
 89      BOOST_CHECK_EQUAL(args.GetArg("foo", "default"), "0");
 90      BOOST_CHECK_EQUAL(args.GetIntArg("foo", 100), 0);
 91      BOOST_CHECK_EQUAL(args.GetBoolArg("foo", true), false);
 92      BOOST_CHECK_EQUAL(args.GetBoolArg("foo", false), false);
 93  
 94      set_foo("");
 95      BOOST_CHECK_EQUAL(args.GetSetting("foo").write(), "\"\"");
 96      BOOST_CHECK_EQUAL(args.GetArg("foo", "default"), "");
 97      BOOST_CHECK_EQUAL(args.GetIntArg("foo", 100), 0);
 98      BOOST_CHECK_EQUAL(args.GetBoolArg("foo", true), true);
 99      BOOST_CHECK_EQUAL(args.GetBoolArg("foo", false), true);
100  
101      set_foo(99);
102      BOOST_CHECK_EQUAL(args.GetSetting("foo").write(), "99");
103      BOOST_CHECK_EQUAL(args.GetArg("foo", "default"), "99");
104      BOOST_CHECK_EQUAL(args.GetIntArg("foo", 100), 99);
105      BOOST_CHECK_THROW(args.GetBoolArg("foo", true), std::runtime_error);
106      BOOST_CHECK_THROW(args.GetBoolArg("foo", false), std::runtime_error);
107  
108      set_foo(3.25);
109      BOOST_CHECK_EQUAL(args.GetSetting("foo").write(), "3.25");
110      BOOST_CHECK_EQUAL(args.GetArg("foo", "default"), "3.25");
111      BOOST_CHECK_THROW(args.GetIntArg("foo", 100), std::runtime_error);
112      BOOST_CHECK_THROW(args.GetBoolArg("foo", true), std::runtime_error);
113      BOOST_CHECK_THROW(args.GetBoolArg("foo", false), std::runtime_error);
114  
115      set_foo(0);
116      BOOST_CHECK_EQUAL(args.GetSetting("foo").write(), "0");
117      BOOST_CHECK_EQUAL(args.GetArg("foo", "default"), "0");
118      BOOST_CHECK_EQUAL(args.GetIntArg("foo", 100), 0);
119      BOOST_CHECK_THROW(args.GetBoolArg("foo", true), std::runtime_error);
120      BOOST_CHECK_THROW(args.GetBoolArg("foo", false), std::runtime_error);
121  
122      set_foo(true);
123      BOOST_CHECK_EQUAL(args.GetSetting("foo").write(), "true");
124      BOOST_CHECK_EQUAL(args.GetArg("foo", "default"), "1");
125      BOOST_CHECK_EQUAL(args.GetIntArg("foo", 100), 1);
126      BOOST_CHECK_EQUAL(args.GetBoolArg("foo", true), true);
127      BOOST_CHECK_EQUAL(args.GetBoolArg("foo", false), true);
128  
129      set_foo(false);
130      BOOST_CHECK_EQUAL(args.GetSetting("foo").write(), "false");
131      BOOST_CHECK_EQUAL(args.GetArg("foo", "default"), "0");
132      BOOST_CHECK_EQUAL(args.GetIntArg("foo", 100), 0);
133      BOOST_CHECK_EQUAL(args.GetBoolArg("foo", true), false);
134      BOOST_CHECK_EQUAL(args.GetBoolArg("foo", false), false);
135  
136      set_foo(UniValue::VOBJ);
137      BOOST_CHECK_EQUAL(args.GetSetting("foo").write(), "{}");
138      BOOST_CHECK_THROW(args.GetArg("foo", "default"), std::runtime_error);
139      BOOST_CHECK_THROW(args.GetIntArg("foo", 100), std::runtime_error);
140      BOOST_CHECK_THROW(args.GetBoolArg("foo", true), std::runtime_error);
141      BOOST_CHECK_THROW(args.GetBoolArg("foo", false), std::runtime_error);
142  
143      set_foo(UniValue::VARR);
144      BOOST_CHECK_EQUAL(args.GetSetting("foo").write(), "[]");
145      BOOST_CHECK_THROW(args.GetArg("foo", "default"), std::runtime_error);
146      BOOST_CHECK_THROW(args.GetIntArg("foo", 100), std::runtime_error);
147      BOOST_CHECK_THROW(args.GetBoolArg("foo", true), std::runtime_error);
148      BOOST_CHECK_THROW(args.GetBoolArg("foo", false), std::runtime_error);
149  
150      set_foo(UniValue::VNULL);
151      BOOST_CHECK_EQUAL(args.GetSetting("foo").write(), "null");
152      BOOST_CHECK_EQUAL(args.GetArg("foo", "default"), "default");
153      BOOST_CHECK_EQUAL(args.GetIntArg("foo", 100), 100);
154      BOOST_CHECK_EQUAL(args.GetBoolArg("foo", true), true);
155      BOOST_CHECK_EQUAL(args.GetBoolArg("foo", false), false);
156  }
157  
158  BOOST_AUTO_TEST_CASE(boolarg)
159  {
160      ArgsManager local_args;
161  
162      const auto foo = std::make_pair("-foo", ArgsManager::ALLOW_ANY);
163      SetupArgs(local_args, {foo});
164      ResetArgs(local_args, "-foo");
165      BOOST_CHECK(local_args.GetBoolArg("-foo", false));
166      BOOST_CHECK(local_args.GetBoolArg("-foo", true));
167  
168      BOOST_CHECK(!local_args.GetBoolArg("-fo", false));
169      BOOST_CHECK(local_args.GetBoolArg("-fo", true));
170  
171      BOOST_CHECK(!local_args.GetBoolArg("-fooo", false));
172      BOOST_CHECK(local_args.GetBoolArg("-fooo", true));
173  
174      ResetArgs(local_args, "-foo=0");
175      BOOST_CHECK(!local_args.GetBoolArg("-foo", false));
176      BOOST_CHECK(!local_args.GetBoolArg("-foo", true));
177  
178      ResetArgs(local_args, "-foo=1");
179      BOOST_CHECK(local_args.GetBoolArg("-foo", false));
180      BOOST_CHECK(local_args.GetBoolArg("-foo", true));
181  
182      // New 0.6 feature: auto-map -nosomething to !-something:
183      ResetArgs(local_args, "-nofoo");
184      BOOST_CHECK(!local_args.GetBoolArg("-foo", false));
185      BOOST_CHECK(!local_args.GetBoolArg("-foo", true));
186  
187      ResetArgs(local_args, "-nofoo=1");
188      BOOST_CHECK(!local_args.GetBoolArg("-foo", false));
189      BOOST_CHECK(!local_args.GetBoolArg("-foo", true));
190  
191      ResetArgs(local_args, "-foo -nofoo"); // -nofoo should win
192      BOOST_CHECK(!local_args.GetBoolArg("-foo", false));
193      BOOST_CHECK(!local_args.GetBoolArg("-foo", true));
194  
195      ResetArgs(local_args, "-foo=1 -nofoo=1"); // -nofoo should win
196      BOOST_CHECK(!local_args.GetBoolArg("-foo", false));
197      BOOST_CHECK(!local_args.GetBoolArg("-foo", true));
198  
199      ResetArgs(local_args, "-foo=0 -nofoo=0"); // -nofoo=0 should win
200      BOOST_CHECK(local_args.GetBoolArg("-foo", false));
201      BOOST_CHECK(local_args.GetBoolArg("-foo", true));
202  
203      // New 0.6 feature: treat -- same as -:
204      ResetArgs(local_args, "--foo=1");
205      BOOST_CHECK(local_args.GetBoolArg("-foo", false));
206      BOOST_CHECK(local_args.GetBoolArg("-foo", true));
207  
208      ResetArgs(local_args, "--nofoo=1");
209      BOOST_CHECK(!local_args.GetBoolArg("-foo", false));
210      BOOST_CHECK(!local_args.GetBoolArg("-foo", true));
211  }
212  
213  BOOST_AUTO_TEST_CASE(stringarg)
214  {
215      ArgsManager local_args;
216  
217      const auto foo = std::make_pair("-foo", ArgsManager::ALLOW_ANY);
218      const auto bar = std::make_pair("-bar", ArgsManager::ALLOW_ANY);
219      SetupArgs(local_args, {foo, bar});
220      ResetArgs(local_args, "");
221      BOOST_CHECK_EQUAL(local_args.GetArg("-foo", ""), "");
222      BOOST_CHECK_EQUAL(local_args.GetArg("-foo", "eleven"), "eleven");
223  
224      ResetArgs(local_args, "-foo -bar");
225      BOOST_CHECK_EQUAL(local_args.GetArg("-foo", ""), "");
226      BOOST_CHECK_EQUAL(local_args.GetArg("-foo", "eleven"), "");
227  
228      ResetArgs(local_args, "-foo=");
229      BOOST_CHECK_EQUAL(local_args.GetArg("-foo", ""), "");
230      BOOST_CHECK_EQUAL(local_args.GetArg("-foo", "eleven"), "");
231  
232      ResetArgs(local_args, "-foo=11");
233      BOOST_CHECK_EQUAL(local_args.GetArg("-foo", ""), "11");
234      BOOST_CHECK_EQUAL(local_args.GetArg("-foo", "eleven"), "11");
235  
236      ResetArgs(local_args, "-foo=eleven");
237      BOOST_CHECK_EQUAL(local_args.GetArg("-foo", ""), "eleven");
238      BOOST_CHECK_EQUAL(local_args.GetArg("-foo", "eleven"), "eleven");
239  }
240  
241  BOOST_AUTO_TEST_CASE(intarg)
242  {
243      ArgsManager local_args;
244  
245      const auto foo = std::make_pair("-foo", ArgsManager::ALLOW_ANY);
246      const auto bar = std::make_pair("-bar", ArgsManager::ALLOW_ANY);
247      SetupArgs(local_args, {foo, bar});
248      ResetArgs(local_args, "");
249      BOOST_CHECK_EQUAL(local_args.GetIntArg("-foo", 11), 11);
250      BOOST_CHECK_EQUAL(local_args.GetIntArg("-foo", 0), 0);
251  
252      ResetArgs(local_args, "-foo -bar");
253      BOOST_CHECK_EQUAL(local_args.GetIntArg("-foo", 11), 0);
254      BOOST_CHECK_EQUAL(local_args.GetIntArg("-bar", 11), 0);
255  
256      // Check under-/overflow behavior.
257      ResetArgs(local_args, "-foo=-9223372036854775809 -bar=9223372036854775808");
258      BOOST_CHECK_EQUAL(local_args.GetIntArg("-foo", 0), std::numeric_limits<int64_t>::min());
259      BOOST_CHECK_EQUAL(local_args.GetIntArg("-bar", 0), std::numeric_limits<int64_t>::max());
260  
261      ResetArgs(local_args, "-foo=11 -bar=12");
262      BOOST_CHECK_EQUAL(local_args.GetIntArg("-foo", 0), 11);
263      BOOST_CHECK_EQUAL(local_args.GetIntArg("-bar", 11), 12);
264  
265      ResetArgs(local_args, "-foo=NaN -bar=NotANumber");
266      BOOST_CHECK_EQUAL(local_args.GetIntArg("-foo", 1), 0);
267      BOOST_CHECK_EQUAL(local_args.GetIntArg("-bar", 11), 0);
268  }
269  
270  BOOST_AUTO_TEST_CASE(patharg)
271  {
272      ArgsManager local_args;
273  
274      const auto dir = std::make_pair("-dir", ArgsManager::ALLOW_ANY);
275      SetupArgs(local_args, {dir});
276      ResetArgs(local_args, "");
277      BOOST_CHECK_EQUAL(local_args.GetPathArg("-dir"), fs::path{});
278  
279      const fs::path root_path{"/"};
280      ResetArgs(local_args, "-dir=/");
281      BOOST_CHECK_EQUAL(local_args.GetPathArg("-dir"), root_path);
282  
283      ResetArgs(local_args, "-dir=/.");
284      BOOST_CHECK_EQUAL(local_args.GetPathArg("-dir"), root_path);
285  
286      ResetArgs(local_args, "-dir=/./");
287      BOOST_CHECK_EQUAL(local_args.GetPathArg("-dir"), root_path);
288  
289      ResetArgs(local_args, "-dir=/.//");
290      BOOST_CHECK_EQUAL(local_args.GetPathArg("-dir"), root_path);
291  
292  #ifdef WIN32
293      const fs::path win_root_path{"C:\\"};
294      ResetArgs(local_args, "-dir=C:\\");
295      BOOST_CHECK_EQUAL(local_args.GetPathArg("-dir"), win_root_path);
296  
297      ResetArgs(local_args, "-dir=C:/");
298      BOOST_CHECK_EQUAL(local_args.GetPathArg("-dir"), win_root_path);
299  
300      ResetArgs(local_args, "-dir=C:\\\\");
301      BOOST_CHECK_EQUAL(local_args.GetPathArg("-dir"), win_root_path);
302  
303      ResetArgs(local_args, "-dir=C:\\.");
304      BOOST_CHECK_EQUAL(local_args.GetPathArg("-dir"), win_root_path);
305  
306      ResetArgs(local_args, "-dir=C:\\.\\");
307      BOOST_CHECK_EQUAL(local_args.GetPathArg("-dir"), win_root_path);
308  
309      ResetArgs(local_args, "-dir=C:\\.\\\\");
310      BOOST_CHECK_EQUAL(local_args.GetPathArg("-dir"), win_root_path);
311  #endif
312  
313      const fs::path absolute_path{"/home/user/.bitcoin"};
314      ResetArgs(local_args, "-dir=/home/user/.bitcoin");
315      BOOST_CHECK_EQUAL(local_args.GetPathArg("-dir"), absolute_path);
316  
317      ResetArgs(local_args, "-dir=/root/../home/user/.bitcoin");
318      BOOST_CHECK_EQUAL(local_args.GetPathArg("-dir"), absolute_path);
319  
320      ResetArgs(local_args, "-dir=/home/./user/.bitcoin");
321      BOOST_CHECK_EQUAL(local_args.GetPathArg("-dir"), absolute_path);
322  
323      ResetArgs(local_args, "-dir=/home/user/.bitcoin/");
324      BOOST_CHECK_EQUAL(local_args.GetPathArg("-dir"), absolute_path);
325  
326      ResetArgs(local_args, "-dir=/home/user/.bitcoin//");
327      BOOST_CHECK_EQUAL(local_args.GetPathArg("-dir"), absolute_path);
328  
329      ResetArgs(local_args, "-dir=/home/user/.bitcoin/.");
330      BOOST_CHECK_EQUAL(local_args.GetPathArg("-dir"), absolute_path);
331  
332      ResetArgs(local_args, "-dir=/home/user/.bitcoin/./");
333      BOOST_CHECK_EQUAL(local_args.GetPathArg("-dir"), absolute_path);
334  
335      ResetArgs(local_args, "-dir=/home/user/.bitcoin/.//");
336      BOOST_CHECK_EQUAL(local_args.GetPathArg("-dir"), absolute_path);
337  
338      const fs::path relative_path{"user/.bitcoin"};
339      ResetArgs(local_args, "-dir=user/.bitcoin");
340      BOOST_CHECK_EQUAL(local_args.GetPathArg("-dir"), relative_path);
341  
342      ResetArgs(local_args, "-dir=somewhere/../user/.bitcoin");
343      BOOST_CHECK_EQUAL(local_args.GetPathArg("-dir"), relative_path);
344  
345      ResetArgs(local_args, "-dir=user/./.bitcoin");
346      BOOST_CHECK_EQUAL(local_args.GetPathArg("-dir"), relative_path);
347  
348      ResetArgs(local_args, "-dir=user/.bitcoin/");
349      BOOST_CHECK_EQUAL(local_args.GetPathArg("-dir"), relative_path);
350  
351      ResetArgs(local_args, "-dir=user/.bitcoin//");
352      BOOST_CHECK_EQUAL(local_args.GetPathArg("-dir"), relative_path);
353  
354      ResetArgs(local_args, "-dir=user/.bitcoin/.");
355      BOOST_CHECK_EQUAL(local_args.GetPathArg("-dir"), relative_path);
356  
357      ResetArgs(local_args, "-dir=user/.bitcoin/./");
358      BOOST_CHECK_EQUAL(local_args.GetPathArg("-dir"), relative_path);
359  
360      ResetArgs(local_args, "-dir=user/.bitcoin/.//");
361      BOOST_CHECK_EQUAL(local_args.GetPathArg("-dir"), relative_path);
362  
363      // Check negated and default argument handling. Specifying an empty argument
364      // is the same as not specifying the argument. This is convenient for
365      // scripting so later command line arguments can override earlier command
366      // line arguments or bitcoin.conf values. Currently the -dir= case cannot be
367      // distinguished from -dir case with no assignment, but #16545 would add the
368      // ability to distinguish these in the future (and treat the no-assign case
369      // like an imperative command or an error).
370      ResetArgs(local_args, "");
371      BOOST_CHECK_EQUAL(local_args.GetPathArg("-dir", "default"), fs::path{"default"});
372      ResetArgs(local_args, "-dir=override");
373      BOOST_CHECK_EQUAL(local_args.GetPathArg("-dir", "default"), fs::path{"override"});
374      ResetArgs(local_args, "-dir=");
375      BOOST_CHECK_EQUAL(local_args.GetPathArg("-dir", "default"), fs::path{"default"});
376      ResetArgs(local_args, "-dir");
377      BOOST_CHECK_EQUAL(local_args.GetPathArg("-dir", "default"), fs::path{"default"});
378      ResetArgs(local_args, "-nodir");
379      BOOST_CHECK_EQUAL(local_args.GetPathArg("-dir", "default"), fs::path{""});
380  }
381  
382  BOOST_AUTO_TEST_CASE(doubledash)
383  {
384      ArgsManager local_args;
385  
386      const auto foo = std::make_pair("-foo", ArgsManager::ALLOW_ANY);
387      const auto bar = std::make_pair("-bar", ArgsManager::ALLOW_ANY);
388      SetupArgs(local_args, {foo, bar});
389      ResetArgs(local_args, "--foo");
390      BOOST_CHECK_EQUAL(local_args.GetBoolArg("-foo", false), true);
391  
392      ResetArgs(local_args, "--foo=verbose --bar=1");
393      BOOST_CHECK_EQUAL(local_args.GetArg("-foo", ""), "verbose");
394      BOOST_CHECK_EQUAL(local_args.GetIntArg("-bar", 0), 1);
395  }
396  
397  BOOST_AUTO_TEST_CASE(boolargno)
398  {
399      ArgsManager local_args;
400  
401      const auto foo = std::make_pair("-foo", ArgsManager::ALLOW_ANY);
402      const auto bar = std::make_pair("-bar", ArgsManager::ALLOW_ANY);
403      SetupArgs(local_args, {foo, bar});
404      ResetArgs(local_args, "-nofoo");
405      BOOST_CHECK(!local_args.GetBoolArg("-foo", true));
406      BOOST_CHECK(!local_args.GetBoolArg("-foo", false));
407  
408      ResetArgs(local_args, "-nofoo=1");
409      BOOST_CHECK(!local_args.GetBoolArg("-foo", true));
410      BOOST_CHECK(!local_args.GetBoolArg("-foo", false));
411  
412      ResetArgs(local_args, "-nofoo=0");
413      BOOST_CHECK(local_args.GetBoolArg("-foo", true));
414      BOOST_CHECK(local_args.GetBoolArg("-foo", false));
415  
416      ResetArgs(local_args, "-foo --nofoo"); // --nofoo should win
417      BOOST_CHECK(!local_args.GetBoolArg("-foo", true));
418      BOOST_CHECK(!local_args.GetBoolArg("-foo", false));
419  
420      ResetArgs(local_args, "-nofoo -foo"); // foo always wins:
421      BOOST_CHECK(local_args.GetBoolArg("-foo", true));
422      BOOST_CHECK(local_args.GetBoolArg("-foo", false));
423  }
424  
425  BOOST_AUTO_TEST_CASE(logargs)
426  {
427      ArgsManager local_args;
428  
429      const auto okaylog_bool = std::make_pair("-okaylog-bool", ArgsManager::ALLOW_ANY);
430      const auto okaylog_negbool = std::make_pair("-okaylog-negbool", ArgsManager::ALLOW_ANY);
431      const auto okaylog = std::make_pair("-okaylog", ArgsManager::ALLOW_ANY);
432      const auto dontlog = std::make_pair("-dontlog", ArgsManager::ALLOW_ANY | ArgsManager::SENSITIVE);
433      SetupArgs(local_args, {okaylog_bool, okaylog_negbool, okaylog, dontlog});
434      ResetArgs(local_args, "-okaylog-bool -nookaylog-negbool -okaylog=public -dontlog=private42");
435  
436      // Everything logged to debug.log will also append to str
437      std::string str;
438      auto print_connection = LogInstance().PushBackCallback(
439          [&str](const std::string& s) {
440              str += s;
441          });
442  
443      // Log the arguments
444      local_args.LogArgs();
445  
446      LogInstance().DeleteCallback(print_connection);
447      // Check that what should appear does, and what shouldn't doesn't.
448      BOOST_CHECK(str.find("Command-line arg: okaylog-bool=\"\"") != std::string::npos);
449      BOOST_CHECK(str.find("Command-line arg: okaylog-negbool=false") != std::string::npos);
450      BOOST_CHECK(str.find("Command-line arg: okaylog=\"public\"") != std::string::npos);
451      BOOST_CHECK(str.find("dontlog=****") != std::string::npos);
452      BOOST_CHECK(str.find("private42") == std::string::npos);
453  }
454  
455  BOOST_AUTO_TEST_SUITE_END()