mirror of
https://github.com/catchorg/Catch2.git
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381 lines
8.5 KiB
C++
381 lines
8.5 KiB
C++
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// Copyright Catch2 Authors
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// Distributed under the Boost Software License, Version 1.0.
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// (See accompanying file LICENSE.txt or copy at
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// https://www.boost.org/LICENSE_1_0.txt)
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// SPDX-License-Identifier: BSL-1.0
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#ifdef __clang__
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#pragma clang diagnostic ignored "-Wpadded"
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#endif
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#ifdef _MSC_VER
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#pragma warning (disable : 4702) // Disable unreachable code warning for the last test
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// that is triggered when compiling as Win32|Release
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#endif
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#include <catch2/catch_test_macros.hpp>
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#include <catch2/generators/catch_generators.hpp>
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#include <catch2/generators/catch_generators_range.hpp>
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#include <cstdio>
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#include <sstream>
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#include <iostream>
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struct Opaque
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{
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int val;
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bool operator ==( const Opaque& o ) const
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{
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return val == o.val;
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}
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};
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///////////////////////////////////////////////////////////////////////////////
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TEST_CASE
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(
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"A failing expression with a non streamable type is still captured",
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"[Tricky][failing][.]"
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)
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{
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Opaque o1, o2;
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o1.val = 7;
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o2.val = 8;
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CHECK( &o1 == &o2 );
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CHECK( o1 == o2 );
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}
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///////////////////////////////////////////////////////////////////////////////
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TEST_CASE
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(
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"An expression with side-effects should only be evaluated once",
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"[Tricky]"
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)
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{
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int i = 7;
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REQUIRE( i++ == 7 );
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REQUIRE( i++ == 8 );
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}
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namespace A {
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struct X
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{
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X() : a(4), b(2), c(7) {}
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X(int v) : a(v), b(2), c(7) {}
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int a;
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int b;
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int c;
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};
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}
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namespace B {
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struct Y
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{
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Y() : a(4), b(2), c(7) {}
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Y(int v) : a(v), b(2), c(7) {}
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int a;
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int b;
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int c;
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};
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}
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inline bool operator==(const A::X& lhs, const B::Y& rhs)
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{
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return (lhs.a == rhs.a);
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}
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inline bool operator==(const B::Y& lhs, const A::X& rhs)
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{
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return (lhs.a == rhs.a);
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}
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///////////////////////////////////////////////////////////////////////////////
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/* This, currently, does not compile with LLVM
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TEST_CASE
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(
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"Operators at different namespace levels not hijacked by Koenig lookup"
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"[Tricky]"
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)
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{
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A::X x;
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B::Y y;
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REQUIRE( x == y );
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}
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*/
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namespace ObjectWithConversions
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{
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struct Object
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{
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operator unsigned int() const {return 0xc0000000;}
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};
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///////////////////////////////////////////////////////////////////////////////
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TEST_CASE
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(
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"Implicit conversions are supported inside assertion macros",
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"[Tricky][approvals]"
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)
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{
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Object o;
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REQUIRE(0xc0000000 == o );
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}
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}
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namespace EnumBitFieldTests
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{
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enum Bits : uint32_t {
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bit0 = 0x0001,
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bit1 = 0x0002,
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bit2 = 0x0004,
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bit3 = 0x0008,
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bit1and2 = bit1 | bit2,
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bit30 = 0x40000000,
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bit31 = 0x80000000,
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bit30and31 = bit30 | bit31
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};
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TEST_CASE( "Test enum bit values", "[Tricky]" )
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{
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REQUIRE( 0xc0000000 == bit30and31 );
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}
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}
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struct Obj
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{
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Obj():prop(&p){}
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int p = 0;
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int* prop;
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};
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TEST_CASE("boolean member", "[Tricky]")
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{
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Obj obj;
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REQUIRE( obj.prop != nullptr );
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}
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// Tests for a problem submitted by Ralph McArdell
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//
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// The static bool value should not need to be defined outside the
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// struct it is declared in - but when evaluating it in a deduced
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// context it appears to require the extra definition.
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// The issue was fixed by adding bool overloads to bypass the
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// templates that were there to deduce it.
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template <bool B>
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struct is_true
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{
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static const bool value = B;
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};
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TEST_CASE( "(unimplemented) static bools can be evaluated", "[Tricky]" )
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{
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SECTION("compare to true")
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{
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REQUIRE( is_true<true>::value == true );
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REQUIRE( true == is_true<true>::value );
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}
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SECTION("compare to false")
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{
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REQUIRE( is_true<false>::value == false );
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REQUIRE( false == is_true<false>::value );
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}
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SECTION("negation")
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{
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REQUIRE( !is_true<false>::value );
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}
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SECTION("double negation")
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{
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REQUIRE( !!is_true<true>::value );
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}
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SECTION("direct")
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{
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REQUIRE( is_true<true>::value );
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REQUIRE_FALSE( is_true<false>::value );
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}
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}
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struct Boolable
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{
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explicit Boolable( bool value ) : m_value( value ) {}
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explicit operator bool() const {
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return m_value;
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}
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bool m_value;
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};
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TEST_CASE( "Objects that evaluated in boolean contexts can be checked", "[Tricky][SafeBool]" )
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{
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Boolable True( true );
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Boolable False( false );
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CHECK( True );
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CHECK( !False );
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CHECK_FALSE( False );
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}
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TEST_CASE( "Assertions then sections", "[Tricky]" )
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{
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// This was causing a failure due to the way the console reporter was handling
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// the current section
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REQUIRE( true );
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SECTION( "A section" )
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{
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REQUIRE( true );
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SECTION( "Another section" )
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{
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REQUIRE( true );
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}
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SECTION( "Another other section" )
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{
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REQUIRE( true );
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}
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}
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}
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struct Awkward
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{
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operator int() const { return 7; }
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};
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TEST_CASE( "non streamable - with conv. op", "[Tricky]" )
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{
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Awkward awkward;
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std::string s = ::Catch::Detail::stringify( awkward );
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REQUIRE( s == "7" );
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}
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inline void foo() {}
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typedef void (*fooptr_t)();
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TEST_CASE( "Comparing function pointers", "[Tricky][function pointer]" )
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{
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// This was giving a warning in VS2010
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// #179
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fooptr_t a = foo;
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REQUIRE( a );
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REQUIRE( a == &foo );
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}
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struct S
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{
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void f() {}
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};
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TEST_CASE( "Comparing member function pointers", "[Tricky][member function pointer][approvals]" )
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{
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typedef void (S::*MF)();
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MF m = &S::f;
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CHECK( m == &S::f );
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}
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class ClassName {};
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TEST_CASE( "pointer to class", "[Tricky]" )
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{
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ClassName *p = 0;
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REQUIRE( p == 0 );
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}
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#include <memory>
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TEST_CASE( "null_ptr", "[Tricky]" )
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{
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std::unique_ptr<int> ptr;
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REQUIRE(ptr.get() == nullptr);
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}
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TEST_CASE( "X/level/0/a", "[Tricky]" ) { SUCCEED(""); }
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TEST_CASE( "X/level/0/b", "[Tricky][fizz]" ){ SUCCEED(""); }
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TEST_CASE( "X/level/1/a", "[Tricky]" ) { SUCCEED(""); }
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TEST_CASE( "X/level/1/b", "[Tricky]" ) { SUCCEED(""); }
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TEST_CASE( "has printf" ) {
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// This can cause problems as, currently, stdout itself is not redirected - only the cout (and cerr) buffer
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printf( "loose text artifact\n" );
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}
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namespace {
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struct constructor_throws {
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[[noreturn]] constructor_throws() {
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throw 1;
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}
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};
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}
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TEST_CASE("Commas in various macros are allowed") {
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REQUIRE_THROWS( std::vector<constructor_throws>{constructor_throws{}, constructor_throws{}} );
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CHECK_THROWS( std::vector<constructor_throws>{constructor_throws{}, constructor_throws{}} );
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REQUIRE_NOTHROW( std::vector<int>{1, 2, 3} == std::vector<int>{1, 2, 3} );
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CHECK_NOTHROW( std::vector<int>{1, 2, 3} == std::vector<int>{1, 2, 3} );
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REQUIRE(std::vector<int>{1, 2} == std::vector<int>{1, 2});
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CHECK( std::vector<int>{1, 2} == std::vector<int>{1, 2} );
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REQUIRE_FALSE(std::vector<int>{1, 2} == std::vector<int>{1, 2, 3});
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CHECK_FALSE( std::vector<int>{1, 2} == std::vector<int>{1, 2, 3} );
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CHECK_NOFAIL( std::vector<int>{1, 2} == std::vector<int>{1, 2} );
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CHECKED_IF( std::vector<int>{1, 2} == std::vector<int>{1, 2} ) {
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REQUIRE(true);
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} CHECKED_ELSE( std::vector<int>{1, 2} == std::vector<int>{1, 2} ) {
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CHECK(true);
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}
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}
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TEST_CASE( "non-copyable objects", "[.][failing]" ) {
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// Thanks to Agustin Bergé (@k-ballo on the cpplang Slack) for raising this
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std::type_info const& ti = typeid(int);
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CHECK( ti == typeid(int) );
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}
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TEST_CASE("#1514: stderr/stdout is not captured in tests aborted by an exception", "[output-capture][regression][.]") {
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std::cout << "This would not be caught previously\n" << std::flush;
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std::clog << "Nor would this\n" << std::flush;
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// FAIL aborts the test by throwing a Catch exception
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FAIL("1514");
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}
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TEST_CASE( "#2025: -c shouldn't cause infinite loop", "[sections][generators][regression][.approvals]" ) {
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SECTION( "Check cursor from buffer offset" ) {
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auto bufPos = GENERATE_REF( range( 0, 44 ) );
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WHEN( "Buffer position is " << bufPos ) { REQUIRE( 1 == 1 ); }
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}
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}
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TEST_CASE("#2025: original repro", "[sections][generators][regression][.approvals]") {
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auto fov = GENERATE(true, false);
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DYNAMIC_SECTION("fov_" << fov) {
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std::cout << "inside with fov: " << fov << '\n';
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}
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}
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TEST_CASE("#2025: same-level sections", "[sections][generators][regression][.approvals]") {
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SECTION("A") {
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SUCCEED();
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}
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auto i = GENERATE(1, 2, 3);
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SECTION("B") {
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REQUIRE(i < 4);
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}
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}
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