1 /*
2  *  Created by Phil on 27/11/2013.
3  *  Copyright 2013 Two Blue Cubes Ltd. All rights reserved.
4  *
5  *  Distributed under the Boost Software License, Version 1.0. (See accompanying
6  *  file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
7  */
8 #ifndef TWOBLUECUBES_CATCH_COMMON_HPP_INCLUDED
9 #define TWOBLUECUBES_CATCH_COMMON_HPP_INCLUDED
10 
11 #include "catch_common.h"
12 
13 #include <cstring>
14 #include <cctype>
15 
16 namespace Catch {
17 
startsWith(std::string const & s,std::string const & prefix)18     bool startsWith( std::string const& s, std::string const& prefix ) {
19         return s.size() >= prefix.size() && std::equal(prefix.begin(), prefix.end(), s.begin());
20     }
startsWith(std::string const & s,char prefix)21     bool startsWith( std::string const& s, char prefix ) {
22         return !s.empty() && s[0] == prefix;
23     }
endsWith(std::string const & s,std::string const & suffix)24     bool endsWith( std::string const& s, std::string const& suffix ) {
25         return s.size() >= suffix.size() && std::equal(suffix.rbegin(), suffix.rend(), s.rbegin());
26     }
endsWith(std::string const & s,char suffix)27     bool endsWith( std::string const& s, char suffix ) {
28         return !s.empty() && s[s.size()-1] == suffix;
29     }
contains(std::string const & s,std::string const & infix)30     bool contains( std::string const& s, std::string const& infix ) {
31         return s.find( infix ) != std::string::npos;
32     }
toLowerCh(char c)33     char toLowerCh(char c) {
34         return static_cast<char>( std::tolower( c ) );
35     }
toLowerInPlace(std::string & s)36     void toLowerInPlace( std::string& s ) {
37         std::transform( s.begin(), s.end(), s.begin(), toLowerCh );
38     }
toLower(std::string const & s)39     std::string toLower( std::string const& s ) {
40         std::string lc = s;
41         toLowerInPlace( lc );
42         return lc;
43     }
trim(std::string const & str)44     std::string trim( std::string const& str ) {
45         static char const* whitespaceChars = "\n\r\t ";
46         std::string::size_type start = str.find_first_not_of( whitespaceChars );
47         std::string::size_type end = str.find_last_not_of( whitespaceChars );
48 
49         return start != std::string::npos ? str.substr( start, 1+end-start ) : std::string();
50     }
51 
replaceInPlace(std::string & str,std::string const & replaceThis,std::string const & withThis)52     bool replaceInPlace( std::string& str, std::string const& replaceThis, std::string const& withThis ) {
53         bool replaced = false;
54         std::size_t i = str.find( replaceThis );
55         while( i != std::string::npos ) {
56             replaced = true;
57             str = str.substr( 0, i ) + withThis + str.substr( i+replaceThis.size() );
58             if( i < str.size()-withThis.size() )
59                 i = str.find( replaceThis, i+withThis.size() );
60             else
61                 i = std::string::npos;
62         }
63         return replaced;
64     }
65 
pluralise(std::size_t count,std::string const & label)66     pluralise::pluralise( std::size_t count, std::string const& label )
67     :   m_count( count ),
68         m_label( label )
69     {}
70 
operator <<(std::ostream & os,pluralise const & pluraliser)71     std::ostream& operator << ( std::ostream& os, pluralise const& pluraliser ) {
72         os << pluraliser.m_count << ' ' << pluraliser.m_label;
73         if( pluraliser.m_count != 1 )
74             os << 's';
75         return os;
76     }
77 
SourceLineInfo()78     SourceLineInfo::SourceLineInfo() : file(""), line( 0 ){}
SourceLineInfo(char const * _file,std::size_t _line)79     SourceLineInfo::SourceLineInfo( char const* _file, std::size_t _line )
80     :   file( _file ),
81         line( _line )
82     {}
empty() const83     bool SourceLineInfo::empty() const {
84         return file[0] == '\0';
85     }
operator ==(SourceLineInfo const & other) const86     bool SourceLineInfo::operator == ( SourceLineInfo const& other ) const {
87         return line == other.line && (file == other.file || std::strcmp(file, other.file) == 0);
88     }
operator <(SourceLineInfo const & other) const89     bool SourceLineInfo::operator < ( SourceLineInfo const& other ) const {
90         return line < other.line || ( line == other.line && (std::strcmp(file, other.file) < 0));
91     }
92 
seedRng(IConfig const & config)93     void seedRng( IConfig const& config ) {
94         if( config.rngSeed() != 0 )
95             std::srand( config.rngSeed() );
96     }
rngSeed()97     unsigned int rngSeed() {
98         return getCurrentContext().getConfig()->rngSeed();
99     }
100 
operator <<(std::ostream & os,SourceLineInfo const & info)101     std::ostream& operator << ( std::ostream& os, SourceLineInfo const& info ) {
102 #ifndef __GNUG__
103         os << info.file << '(' << info.line << ')';
104 #else
105         os << info.file << ':' << info.line;
106 #endif
107         return os;
108     }
109 
throwLogicError(std::string const & message,SourceLineInfo const & locationInfo)110     void throwLogicError( std::string const& message, SourceLineInfo const& locationInfo ) {
111         std::ostringstream oss;
112         oss << locationInfo << ": Internal Catch error: '" << message << '\'';
113         if( alwaysTrue() )
114             throw std::logic_error( oss.str() );
115     }
116 }
117 
118 #endif // TWOBLUECUBES_CATCH_COMMON_HPP_INCLUDED
119 
120