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TestAssert.h
Go to the documentation of this file.
1 #ifndef CPPUNIT_TESTASSERT_H
2 #define CPPUNIT_TESTASSERT_H
3
4 #include <cppunit/Portability.h>
5 #include <cppunit/Exception.h>
6 #include <cppunit/Asserter.h>
7 #include <cppunit/portability/Stream.h>
8 #include <stdio.h>
9 #include <float.h> // For struct assertion_traits<double>
10
11 // Work around "passing 'T' chooses 'int' over 'unsigned int'" warnings when T
12 // is an enum type:
13 #if defined __GNUC__ && (__GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 6))
14 #pragma GCC system_header
15 #endif
16
17
18 CPPUNIT_NS_BEGIN
19
20
44 template <class T>
45 struct assertion_traits
46 {
47 static bool equal( const T& x, const T& y )
48 {
49 return x == y;
50 }
51
52 static std::string toString( const T& x )
53 {
54 OStringStream ost;
55 // Work around "passing 'T' chooses 'int' over 'unsigned int'" warnings when T
56 // is an enum type:
57 #if defined __GNUC__ && ((__GNUC__ == 4 && __GNUC_MINOR__ >= 6) || __GNUC__ > 4)
58 #pragma GCC diagnostic push
59 #pragma GCC diagnostic ignored "-Wsign-promo"
60 #endif
61 ost << x;
62 #if defined __GNUC__ && ((__GNUC__ == 4 && __GNUC_MINOR__ >= 6) || __GNUC__ > 4)
63 #pragma GCC diagnostic pop
64 #endif
65 return ost.str();
66 }
67 };
68
69
78 template <>
79 struct assertion_traits<double>
80 {
81 static bool equal( double x, double y )
82 {
83 return x == y;
84 }
85
86 static std::string toString( double x )
87 {
88 #ifdef DBL_DIG
89 const int precision = DBL_DIG;
90 #else
91 const int precision = 15;
92 #endif // #ifdef DBL_DIG
93 char buffer[128];
94 #ifdef __STDC_SECURE_LIB__ // Use secure version with visual studio 2005 to avoid warning.
95 sprintf_s(buffer, sizeof(buffer), "%.*g", precision, x);
96 #else
97 sprintf(buffer, "%.*g", precision, x);
98 #endif
99 return buffer;
100 }
101 };
102
103
108 template <class T>
109 void assertEquals( const T& expected,
110 const T& actual,
111 SourceLine sourceLine,
112 const std::string &message )
113 {
114 if ( !assertion_traits<T>::equal(expected,actual) ) // lazy toString conversion...
115 {
116 Asserter::failNotEqual( assertion_traits<T>::toString(expected),
117 assertion_traits<T>::toString(actual),
118 sourceLine,
119 message );
120 }
121 }
122
123
129 void CPPUNIT_API assertDoubleEquals( double expected,
130 double actual,
131 double delta,
132 SourceLine sourceLine,
133 const std::string &message );
134
135
136 /* A set of macros which allow us to get the line number
137 * and file name at the point of an error.
138 * Just goes to show that preprocessors do have some
139 * redeeming qualities.
140 */
141 #if CPPUNIT_HAVE_CPP_SOURCE_ANNOTATION
142
145 #define CPPUNIT_ASSERT(condition) \
146 ( CPPUNIT_NS::Asserter::failIf( !(condition), \
147 CPPUNIT_NS::Message( "assertion failed", \
148 "Expression: " #condition), \
149 CPPUNIT_SOURCELINE() ) )
150 #else
151 #define CPPUNIT_ASSERT(condition) \
152 ( CPPUNIT_NS::Asserter::failIf( !(condition), \
153 CPPUNIT_NS::Message( "assertion failed" ), \
154 CPPUNIT_SOURCELINE() ) )
155 #endif
156
164 #define CPPUNIT_ASSERT_MESSAGE(message,condition) \
165 ( CPPUNIT_NS::Asserter::failIf( !(condition), \
166 CPPUNIT_NS::Message( "assertion failed", \
167 "Expression: " \
168 #condition, \
169 message ), \
170 CPPUNIT_SOURCELINE() ) )
171
176 #define CPPUNIT_FAIL( message ) \
177 ( CPPUNIT_NS::Asserter::fail( CPPUNIT_NS::Message( "forced failure", \
178 message ), \
179 CPPUNIT_SOURCELINE() ) )
180
181 #ifdef CPPUNIT_ENABLE_SOURCELINE_DEPRECATED
182 #define CPPUNIT_ASSERT_EQUAL(expected,actual) \
184 ( CPPUNIT_NS::assertEquals( (expected), \
185 (actual), \
186 __LINE__, __FILE__ ) )
187 #else
188
204 #define CPPUNIT_ASSERT_EQUAL(expected,actual) \
205 ( CPPUNIT_NS::assertEquals( (expected), \
206 (actual), \
207 CPPUNIT_SOURCELINE(), \
208 "" ) )
209
228 #define CPPUNIT_ASSERT_EQUAL_MESSAGE(message,expected,actual) \
229 ( CPPUNIT_NS::assertEquals( (expected), \
230 (actual), \
231 CPPUNIT_SOURCELINE(), \
232 (message) ) )
233 #endif
234
245 #define CPPUNIT_ASSERT_DOUBLES_EQUAL(expected,actual,delta) \
246 ( CPPUNIT_NS::assertDoubleEquals( (expected), \
247 (actual), \
248 (delta), \
249 CPPUNIT_SOURCELINE(), \
250 "" ) )
251
252
258 #define CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE(message,expected,actual,delta) \
259 ( CPPUNIT_NS::assertDoubleEquals( (expected), \
260 (actual), \
261 (delta), \
262 CPPUNIT_SOURCELINE(), \
263 (message) ) )
264
265
274 # define CPPUNIT_ASSERT_THROW( expression, ExceptionType ) \
275 CPPUNIT_ASSERT_THROW_MESSAGE( CPPUNIT_NS::AdditionalMessage(), \
276 expression, \
277 ExceptionType )
278
279
280 // implementation detail
281 #if CPPUNIT_USE_TYPEINFO_NAME
282 #define CPPUNIT_EXTRACT_EXCEPTION_TYPE_( exception, no_rtti_message ) \
283 CPPUNIT_NS::TypeInfoHelper::getClassName( typeid(exception) )
284 #else
285 #define CPPUNIT_EXTRACT_EXCEPTION_TYPE_( exception, no_rtti_message ) \
286 std::string( no_rtti_message )
287 #endif // CPPUNIT_USE_TYPEINFO_NAME
288
289 // implementation detail
290 #define CPPUNIT_GET_PARAMETER_STRING( parameter ) #parameter
291
301 # define CPPUNIT_ASSERT_THROW_MESSAGE( message, expression, ExceptionType ) \
302 do { \
303 bool cpputCorrectExceptionThrown_ = false; \
304 CPPUNIT_NS::Message cpputMsg_( "expected exception not thrown" ); \
305 cpputMsg_.addDetail( message ); \
306 cpputMsg_.addDetail( "Expected: " \
307 CPPUNIT_GET_PARAMETER_STRING( ExceptionType ) ); \
308 \
309 try { \
310 expression; \
311 } catch ( const ExceptionType & ) { \
312 cpputCorrectExceptionThrown_ = true; \
313 } catch ( const std::exception &e) { \
314 cpputMsg_.addDetail( "Actual : " + \
315 CPPUNIT_EXTRACT_EXCEPTION_TYPE_( e, \
316 "std::exception or derived") ); \
317 cpputMsg_.addDetail( std::string("What() : ") + e.what() ); \
318 } catch ( ... ) { \
319 cpputMsg_.addDetail( "Actual : unknown."); \
320 } \
321 \
322 if ( cpputCorrectExceptionThrown_ ) \
323 break; \
324 \
325 CPPUNIT_NS::Asserter::fail( cpputMsg_, \
326 CPPUNIT_SOURCELINE() ); \
327 } while ( false )
328
329
339 # define CPPUNIT_ASSERT_NO_THROW( expression ) \
340 CPPUNIT_ASSERT_NO_THROW_MESSAGE( CPPUNIT_NS::AdditionalMessage(), \
341 expression )
342
343
354 # define CPPUNIT_ASSERT_NO_THROW_MESSAGE( message, expression ) \
355 do { \
356 CPPUNIT_NS::Message cpputMsg_( "unexpected exception caught" ); \
357 cpputMsg_.addDetail( message ); \
358 \
359 try { \
360 expression; \
361 } catch ( const std::exception &e ) { \
362 cpputMsg_.addDetail( "Caught: " + \
363 CPPUNIT_EXTRACT_EXCEPTION_TYPE_( e, \
364 "std::exception or derived" ) ); \
365 cpputMsg_.addDetail( std::string("What(): ") + e.what() ); \
366 CPPUNIT_NS::Asserter::fail( cpputMsg_, \
367 CPPUNIT_SOURCELINE() ); \
368 } catch ( ... ) { \
369 cpputMsg_.addDetail( "Caught: unknown." ); \
370 CPPUNIT_NS::Asserter::fail( cpputMsg_, \
371 CPPUNIT_SOURCELINE() ); \
372 } \
373 } while ( false )
374
375
384 # define CPPUNIT_ASSERT_ASSERTION_FAIL( assertion ) \
385 CPPUNIT_ASSERT_THROW( assertion, CPPUNIT_NS::Exception )
386
387
397 # define CPPUNIT_ASSERT_ASSERTION_FAIL_MESSAGE( message, assertion ) \
398 CPPUNIT_ASSERT_THROW_MESSAGE( message, assertion, CPPUNIT_NS::Exception )
399
400
409 # define CPPUNIT_ASSERT_ASSERTION_PASS( assertion ) \
410 CPPUNIT_ASSERT_NO_THROW( assertion )
411
412
422 # define CPPUNIT_ASSERT_ASSERTION_PASS_MESSAGE( message, assertion ) \
423 CPPUNIT_ASSERT_NO_THROW_MESSAGE( message, assertion )
424
425
426
427
428 // Backwards compatibility
429
430 #if CPPUNIT_ENABLE_NAKED_ASSERT
431
432 #undef assert
433 #define assert(c) CPPUNIT_ASSERT(c)
434 #define assertEqual(e,a) CPPUNIT_ASSERT_EQUAL(e,a)
435 #define assertDoublesEqual(e,a,d) CPPUNIT_ASSERT_DOUBLES_EQUAL(e,a,d)
436 #define assertLongsEqual(e,a) CPPUNIT_ASSERT_EQUAL(e,a)
437
438 #endif
439
440
441 CPPUNIT_NS_END
442
443 #endif // CPPUNIT_TESTASSERT_H
assertion_traits< double >::equal
static bool equal(double x, double y)
Definition: TestAssert.h:81
assertion_traits::equal
static bool equal(const T &x, const T &y)
Definition: TestAssert.h:47
assertEquals
void assertEquals(const T &expected, const T &actual, SourceLine sourceLine, const std::string &message)
(Implementation) Asserts that two objects of the same type are equals. Use CPPUNIT_ASSERT_EQUAL inste...
Definition: TestAssert.h:109
assertion_traits
Traits used by CPPUNIT_ASSERT_EQUAL().
Definition: TestAssert.h:45
assertDoubleEquals
void CPPUNIT_API assertDoubleEquals(double expected, double actual, double delta, SourceLine sourceLine, const std::string &message)
(Implementation) Asserts that two double are equals given a tolerance. Use CPPUNIT_ASSERT_DOUBLES_EQU...
Definition: TestAssert.cpp:8
assertion_traits< double >::toString
static std::string toString(double x)
Definition: TestAssert.h:86
Portability.h
SourceLine
Represents a source line location.Used to capture the failure location in assertion.
Definition: SourceLine.h:30
Asserter::failNotEqual
static void CPPUNIT_API failNotEqual(std::string expected, std::string actual, const SourceLine &sourceLine, const AdditionalMessage &additionalMessage=AdditionalMessage(), std::string shortDescription="equality assertion failed")
Throws an Exception with the specified message and location.
Definition: Asserter.cpp:74
Exception.h
CPPUNIT_NS_END
#define CPPUNIT_NS_END
Definition: Portability.h:120
Asserter.h
CPPUNIT_NS_BEGIN
#define CPPUNIT_NS_BEGIN
Definition: Portability.h:119
assertion_traits::toString
static std::string toString(const T &x)
Definition: TestAssert.h:52
Stream.h
CPPUNIT_API
#define CPPUNIT_API
Definition: CppUnitApi.h:27

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