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[test] move string helper functions into test library
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mzumsande committed Nov 25, 2019
1 parent 239d199 commit 2cb4e8b
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Showing 4 changed files with 36 additions and 35 deletions.
3 changes: 2 additions & 1 deletion src/test/settings_tests.cpp
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Expand Up @@ -4,8 +4,9 @@

#include <util/settings.h>

#include <test/util.h>
#include <test/util/setup_common.h>
#include <test/util/str.h>


#include <boost/test/unit_test.hpp>
#include <univalue.h>
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33 changes: 0 additions & 33 deletions src/test/util.h
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Expand Up @@ -34,37 +34,4 @@ std::string getnewaddress(CWallet& w);
/** Returns the generated coin */
CTxIn generatetoaddress(const std::string& address);

/**
* Increment a string. Useful to enumerate all fixed length strings with
* characters in [min_char, max_char].
*/
template <typename CharType, size_t StringLength>
bool NextString(CharType (&string)[StringLength], CharType min_char, CharType max_char)
{
for (CharType& elem : string) {
bool has_next = elem != max_char;
elem = elem < min_char || elem >= max_char ? min_char : CharType(elem + 1);
if (has_next) return true;
}
return false;
}

/**
* Iterate over string values and call function for each string without
* successive duplicate characters.
*/
template <typename CharType, size_t StringLength, typename Fn>
void ForEachNoDup(CharType (&string)[StringLength], CharType min_char, CharType max_char, Fn&& fn) {
for (bool has_next = true; has_next; has_next = NextString(string, min_char, max_char)) {
int prev = -1;
bool skip_string = false;
for (CharType c : string) {
if (c == prev) skip_string = true;
if (skip_string || c < min_char || c > max_char) break;
prev = c;
}
if (!skip_string) fn();
}
}

#endif // BITCOIN_TEST_UTIL_H
33 changes: 33 additions & 0 deletions src/test/util/str.h
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Expand Up @@ -9,4 +9,37 @@

bool CaseInsensitiveEqual(const std::string& s1, const std::string& s2);

/**
* Increment a string. Useful to enumerate all fixed length strings with
* characters in [min_char, max_char].
*/
template <typename CharType, size_t StringLength>
bool NextString(CharType (&string)[StringLength], CharType min_char, CharType max_char)
{
for (CharType& elem : string) {
bool has_next = elem != max_char;
elem = elem < min_char || elem >= max_char ? min_char : CharType(elem + 1);
if (has_next) return true;
}
return false;
}

/**
* Iterate over string values and call function for each string without
* successive duplicate characters.
*/
template <typename CharType, size_t StringLength, typename Fn>
void ForEachNoDup(CharType (&string)[StringLength], CharType min_char, CharType max_char, Fn&& fn) {
for (bool has_next = true; has_next; has_next = NextString(string, min_char, max_char)) {
int prev = -1;
bool skip_string = false;
for (CharType c : string) {
if (c == prev) skip_string = true;
if (skip_string || c < min_char || c > max_char) break;
prev = c;
}
if (!skip_string) fn();
}
}

#endif // BITCOIN_TEST_UTIL_STR_H
2 changes: 1 addition & 1 deletion src/test/util_tests.cpp
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Expand Up @@ -7,7 +7,7 @@
#include <clientversion.h>
#include <sync.h>
#include <test/util/setup_common.h>
#include <test/util.h>
#include <test/util/str.h>
#include <util/moneystr.h>
#include <util/strencodings.h>
#include <util/string.h>
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