mirror of
https://github.com/catchorg/Catch2.git
synced 2024-11-14 01:39:54 +01:00
c390c4cb9f
This means that all tabs used in indentation are now 4 spaces and that there should be no more trailing whitespace. Ill also look into creating a pre-commit hook that will prevent this from happening in the future. Fixes #105
188 lines
4.3 KiB
C++
188 lines
4.3 KiB
C++
/*
|
|
* Created by Phil on 28/04/2011.
|
|
* Copyright 2011 Two Blue Cubes Ltd. All rights reserved.
|
|
*
|
|
* Distributed under the Boost Software License, Version 1.0. (See accompanying
|
|
* file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
|
|
*/
|
|
|
|
#include "catch.hpp"
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
TEST_CASE
|
|
(
|
|
"Some simple comparisons between doubles",
|
|
"[Approx]"
|
|
)
|
|
{
|
|
double d = 1.23;
|
|
|
|
REQUIRE( d == Approx( 1.23 ) );
|
|
REQUIRE( d != Approx( 1.22 ) );
|
|
REQUIRE( d != Approx( 1.24 ) );
|
|
|
|
REQUIRE( Approx( d ) == 1.23 );
|
|
REQUIRE( Approx( d ) != 1.22 );
|
|
REQUIRE( Approx( d ) != 1.24 );
|
|
}
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
TEST_CASE
|
|
(
|
|
"Approximate comparisons with different epsilons",
|
|
"[Approx]"
|
|
)
|
|
{
|
|
double d = 1.23;
|
|
|
|
REQUIRE( d != Approx( 1.231 ) );
|
|
REQUIRE( d == Approx( 1.231 ).epsilon( 0.1 ) );
|
|
}
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
TEST_CASE
|
|
(
|
|
"Less-than inequalities with different epsilons",
|
|
"[Approx]"
|
|
)
|
|
{
|
|
double d = 1.23;
|
|
|
|
REQUIRE( d <= Approx( 1.24 ) );
|
|
REQUIRE( d <= Approx( 1.23 ) );
|
|
REQUIRE_FALSE( d <= Approx( 1.22 ) );
|
|
REQUIRE( d <= Approx( 1.22 ).epsilon(0.1) );
|
|
}
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
TEST_CASE
|
|
(
|
|
"Greater-than inequalities with different epsilons",
|
|
"[Approx]"
|
|
)
|
|
{
|
|
double d = 1.23;
|
|
|
|
REQUIRE( d >= Approx( 1.22 ) );
|
|
REQUIRE( d >= Approx( 1.23 ) );
|
|
REQUIRE_FALSE( d >= Approx( 1.24 ) );
|
|
REQUIRE( d >= Approx( 1.24 ).epsilon(0.1) );
|
|
}
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
TEST_CASE
|
|
(
|
|
"Approximate comparisons with floats",
|
|
"[Approx]"
|
|
)
|
|
{
|
|
REQUIRE( 1.23f == Approx( 1.23f ) );
|
|
REQUIRE( 0.0f == Approx( 0.0f ) );
|
|
}
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
TEST_CASE
|
|
(
|
|
"Approximate comparisons with ints",
|
|
"[Approx]"
|
|
)
|
|
{
|
|
REQUIRE( 1 == Approx( 1 ) );
|
|
REQUIRE( 0 == Approx( 0 ) );
|
|
}
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
TEST_CASE
|
|
(
|
|
"Approximate comparisons with mixed numeric types",
|
|
"[Approx]"
|
|
)
|
|
{
|
|
const double dZero = 0;
|
|
const double dSmall = 0.00001;
|
|
const double dMedium = 1.234;
|
|
|
|
REQUIRE( 1.0f == Approx( 1 ) );
|
|
REQUIRE( 0 == Approx( dZero) );
|
|
REQUIRE( 0 == Approx( dSmall ).epsilon( 0.001 ) );
|
|
REQUIRE( 1.234f == Approx( dMedium ) );
|
|
REQUIRE( dMedium == Approx( 1.234f ) );
|
|
}
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
TEST_CASE
|
|
(
|
|
"Use a custom approx",
|
|
"[Approx][custom]"
|
|
)
|
|
{
|
|
double d = 1.23;
|
|
|
|
Approx approx = Approx::custom().epsilon( 0.005 );
|
|
|
|
REQUIRE( d == approx( 1.23 ) );
|
|
REQUIRE( d == approx( 1.22 ) );
|
|
REQUIRE( d == approx( 1.24 ) );
|
|
REQUIRE( d != approx( 1.25 ) );
|
|
|
|
REQUIRE( approx( d ) == 1.23 );
|
|
REQUIRE( approx( d ) == 1.22 );
|
|
REQUIRE( approx( d ) == 1.24 );
|
|
REQUIRE( approx( d ) != 1.25 );
|
|
}
|
|
|
|
inline double divide( double a, double b ) {
|
|
return a/b;
|
|
}
|
|
|
|
TEST_CASE( "Approximate PI", "[Approx][PI]" )
|
|
{
|
|
REQUIRE( divide( 22, 7 ) == Approx( 3.141 ).epsilon( 0.001 ) );
|
|
REQUIRE( divide( 22, 7 ) != Approx( 3.141 ).epsilon( 0.0001 ) );
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
#if defined(CATCH_CONFIG_CPP11_TYPE_TRAITS)
|
|
class StrongDoubleTypedef
|
|
{
|
|
double d_ = 0.0;
|
|
|
|
public:
|
|
explicit StrongDoubleTypedef(double d) : d_(d) {}
|
|
explicit operator double() const { return d_; }
|
|
};
|
|
|
|
inline std::ostream& operator<<( std::ostream& os, StrongDoubleTypedef td ) {
|
|
return os << "StrongDoubleTypedef(" << static_cast<double>(td) << ")";
|
|
}
|
|
|
|
TEST_CASE
|
|
(
|
|
"Comparison with explicitly convertible types",
|
|
"[Approx]"
|
|
)
|
|
{
|
|
StrongDoubleTypedef td(10.0);
|
|
|
|
REQUIRE(td == Approx(10.0));
|
|
REQUIRE(Approx(10.0) == td);
|
|
|
|
REQUIRE(td != Approx(11.0));
|
|
REQUIRE(Approx(11.0) != td);
|
|
|
|
REQUIRE(td <= Approx(10.0));
|
|
REQUIRE(td <= Approx(11.0));
|
|
REQUIRE(Approx(10.0) <= td);
|
|
REQUIRE(Approx(9.0) <= td);
|
|
|
|
REQUIRE(td >= Approx(9.0));
|
|
REQUIRE(td >= Approx(10.0));
|
|
REQUIRE(Approx(10.0) >= td);
|
|
REQUIRE(Approx(11.0) >= td);
|
|
|
|
}
|
|
#endif
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|