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Add FUZZY_COMPARE to me tar unit-test, tolerate lower-order imprecision in FPUs

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This commit is contained in:
James Turner 2011-10-21 11:21:52 +01:00
parent c82df0590d
commit f4bb236c04
1 changed files with 13 additions and 5 deletions
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16
simgear/environment/test_metar.cxx
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@ -30,12 +30,20 @@ using std::string;
exit(1); \ exit(1); \
} }
#define FUZZY_COMPARE(a, b, epsilon) \
if (fabs(a - b) > epsilon) { \
cerr << "failed:" << #a << " != " << #b << endl; \
cerr << "\tgot:" << a << endl; \
cerr << "\tepsilon:" << epsilon << endl; \
}
#define VERIFY(a) \ #define VERIFY(a) \
if (!(a)) { \ if (!(a)) { \
cerr << "failed:" << #a << endl; \ cerr << "failed:" << #a << endl; \
exit(1); \ exit(1); \
} }
const double TEST_EPSILON = 1e-9;
void test_basic() void test_basic()
{ {
@ -48,11 +56,11 @@ void test_basic()
COMPARE(m1.getReportType(), -1); // should default to NIL? COMPARE(m1.getReportType(), -1); // should default to NIL?
COMPARE(m1.getWindDir(), 270); COMPARE(m1.getWindDir(), 270);
COMPARE(m1.getWindSpeed_kt(), 12); FUZZY_COMPARE(m1.getWindSpeed_kt(), 12, TEST_EPSILON);
COMPARE(m1.getTemperature_C(), 10); FUZZY_COMPARE(m1.getTemperature_C(), 10, TEST_EPSILON);
COMPARE(m1.getDewpoint_C(), 5); FUZZY_COMPARE(m1.getDewpoint_C(), 5, TEST_EPSILON);
COMPARE(m1.getPressure_hPa(), 1025); FUZZY_COMPARE(m1.getPressure_hPa(), 1025, TEST_EPSILON);
} }
int main(int argc, char* argv[]) int main(int argc, char* argv[])