import catch2 3.8.1vendor/catch2/3.8.1vendor/catch2

1 files changed, 380 insertions, 0 deletions

diff --git a/tests/SelfTest/UsageTests/Tricky.tests.cpp b/tests/SelfTest/UsageTests/Tricky.tests.cpp
new file mode 100644
index 0000000..041d786
--- /dev/null
+++ b/tests/SelfTest/UsageTests/Tricky.tests.cpp
@@ -0,0 +1,380 @@
+
+//              Copyright Catch2 Authors
+// Distributed under the Boost Software License, Version 1.0.
+//   (See accompanying file LICENSE.txt or copy at
+//        https://www.boost.org/LICENSE_1_0.txt)
+
+// SPDX-License-Identifier: BSL-1.0
+
+#ifdef __clang__
+#pragma clang diagnostic ignored "-Wpadded"
+#endif
+
+#ifdef _MSC_VER
+#pragma warning (disable : 4702) // Disable unreachable code warning for the last test
+                                 // that is triggered when compiling as Win32|Release
+#endif
+
+#include <catch2/catch_test_macros.hpp>
+#include <catch2/generators/catch_generators.hpp>
+#include <catch2/generators/catch_generators_range.hpp>
+
+#include <cstdio>
+#include <sstream>
+#include <iostream>
+
+struct Opaque
+{
+    int val;
+    bool operator ==( const Opaque& o ) const
+    {
+        return val == o.val;
+    }
+};
+
+///////////////////////////////////////////////////////////////////////////////
+TEST_CASE
+(
+    "A failing expression with a non streamable type is still captured",
+    "[Tricky][failing][.]"
+)
+{
+
+    Opaque o1, o2;
+    o1.val = 7;
+    o2.val = 8;
+
+    CHECK( &o1 == &o2 );
+    CHECK( o1 == o2 );
+}
+
+///////////////////////////////////////////////////////////////////////////////
+TEST_CASE
+(
+    "An expression with side-effects should only be evaluated once",
+    "[Tricky]"
+)
+{
+    int i = 7;
+
+    REQUIRE( i++ == 7 );
+    REQUIRE( i++ == 8 );
+
+}
+
+namespace A {
+    struct X
+    {
+        X() : a(4), b(2), c(7) {}
+        X(int v) : a(v), b(2), c(7) {}
+        int a;
+        int b;
+        int c;
+    };
+}
+
+namespace B {
+    struct Y
+    {
+        Y() : a(4), b(2), c(7) {}
+        Y(int v) : a(v), b(2), c(7) {}
+        int a;
+        int b;
+        int c;
+    };
+}
+
+inline bool operator==(const A::X& lhs, const B::Y& rhs)
+{
+    return (lhs.a == rhs.a);
+}
+
+inline bool operator==(const B::Y& lhs, const A::X& rhs)
+{
+    return (lhs.a == rhs.a);
+}
+
+
+///////////////////////////////////////////////////////////////////////////////
+/* This, currently, does not compile with LLVM
+TEST_CASE
+(
+    "Operators at different namespace levels not hijacked by Koenig lookup"
+    "[Tricky]"
+)
+{
+    A::X x;
+    B::Y y;
+    REQUIRE( x == y );
+}
+*/
+
+namespace ObjectWithConversions
+{
+    struct Object
+    {
+        operator unsigned int() const {return 0xc0000000;}
+    };
+
+    ///////////////////////////////////////////////////////////////////////////////
+    TEST_CASE
+    (
+        "Implicit conversions are supported inside assertion macros",
+        "[Tricky][approvals]"
+    )
+    {
+        Object o;
+        REQUIRE(0xc0000000 == o );
+    }
+}
+
+namespace EnumBitFieldTests
+{
+    enum Bits : uint32_t {
+        bit0 = 0x0001,
+        bit1 = 0x0002,
+        bit2 = 0x0004,
+        bit3 = 0x0008,
+        bit1and2 = bit1 | bit2,
+        bit30 = 0x40000000,
+        bit31 = 0x80000000,
+        bit30and31 = bit30 | bit31
+    };
+
+    TEST_CASE( "Test enum bit values", "[Tricky]" )
+    {
+        REQUIRE( 0xc0000000 == bit30and31 );
+    }
+}
+
+struct Obj
+{
+    Obj():prop(&p){}
+
+    int p = 0;
+    int* prop;
+};
+
+TEST_CASE("boolean member", "[Tricky]")
+{
+    Obj obj;
+    REQUIRE( obj.prop != nullptr );
+}
+
+// Tests for a problem submitted by Ralph McArdell
+//
+// The static bool value should not need to be defined outside the
+// struct it is declared in - but when evaluating it in a deduced
+// context it appears to require the extra definition.
+// The issue was fixed by adding bool overloads to bypass the
+// templates that were there to deduce it.
+template <bool B>
+struct is_true
+{
+    static const bool value = B;
+};
+
+TEST_CASE( "(unimplemented) static bools can be evaluated", "[Tricky]" )
+{
+    SECTION("compare to true")
+    {
+        REQUIRE( is_true<true>::value == true );
+        REQUIRE( true == is_true<true>::value );
+    }
+    SECTION("compare to false")
+    {
+        REQUIRE( is_true<false>::value == false );
+        REQUIRE( false == is_true<false>::value );
+    }
+
+    SECTION("negation")
+    {
+        REQUIRE( !is_true<false>::value );
+    }
+
+    SECTION("double negation")
+    {
+        REQUIRE( !!is_true<true>::value );
+    }
+
+    SECTION("direct")
+    {
+        REQUIRE( is_true<true>::value );
+        REQUIRE_FALSE( is_true<false>::value );
+    }
+}
+
+struct Boolable
+{
+    explicit Boolable( bool value ) : m_value( value ) {}
+
+    explicit operator bool() const {
+        return m_value;
+    }
+
+    bool m_value;
+};
+
+TEST_CASE( "Objects that evaluated in boolean contexts can be checked", "[Tricky][SafeBool]" )
+{
+    Boolable True( true );
+    Boolable False( false );
+
+    CHECK( True );
+    CHECK( !False );
+    CHECK_FALSE( False );
+}
+
+TEST_CASE( "Assertions then sections", "[Tricky]" )
+{
+    // This was causing a failure due to the way the console reporter was handling
+    // the current section
+
+    REQUIRE( true );
+
+    SECTION( "A section" )
+    {
+        REQUIRE( true );
+
+        SECTION( "Another section" )
+        {
+            REQUIRE( true );
+        }
+        SECTION( "Another other section" )
+        {
+            REQUIRE( true );
+        }
+    }
+}
+
+struct Awkward
+{
+    operator int() const { return 7; }
+};
+
+TEST_CASE( "non streamable - with conv. op", "[Tricky]" )
+{
+    Awkward awkward;
+    std::string s = ::Catch::Detail::stringify( awkward );
+    REQUIRE( s == "7" );
+}
+
+inline void foo() {}
+
+using fooptr_t = void (*)();
+
+TEST_CASE( "Comparing function pointers", "[Tricky][function pointer]" )
+{
+    // This was giving a warning in VS2010
+    // #179
+    fooptr_t a = foo;
+
+    REQUIRE( a );
+    REQUIRE( a == &foo );
+}
+
+struct S
+{
+    void f() {}
+};
+
+
+TEST_CASE( "Comparing member function pointers", "[Tricky][member function pointer][approvals]" )
+{
+    using MF = void (S::*)();
+    MF m = &S::f;
+
+    CHECK( m == &S::f );
+}
+
+class ClassName {};
+
+TEST_CASE( "pointer to class", "[Tricky]" )
+{
+   ClassName *p = 0;
+   REQUIRE( p == 0 );
+}
+
+#include <memory>
+
+TEST_CASE( "null_ptr", "[Tricky]" )
+{
+    std::unique_ptr<int> ptr;
+    REQUIRE(ptr.get() == nullptr);
+}
+
+TEST_CASE( "X/level/0/a", "[Tricky]" )      { SUCCEED(""); }
+TEST_CASE( "X/level/0/b", "[Tricky][fizz]" ){ SUCCEED(""); }
+TEST_CASE( "X/level/1/a", "[Tricky]" )      { SUCCEED(""); }
+TEST_CASE( "X/level/1/b", "[Tricky]" )      { SUCCEED(""); }
+
+TEST_CASE( "has printf" ) {
+
+    // This can cause problems as, currently, stdout itself is not redirected - only the cout (and cerr) buffer
+    printf( "loose text artifact\n" );
+}
+
+namespace {
+    struct constructor_throws {
+        [[noreturn]] constructor_throws() {
+            throw 1;
+        }
+    };
+}
+
+TEST_CASE("Commas in various macros are allowed") {
+    REQUIRE_THROWS( std::vector<constructor_throws>{constructor_throws{}, constructor_throws{}} );
+    CHECK_THROWS( std::vector<constructor_throws>{constructor_throws{}, constructor_throws{}} );
+    REQUIRE_NOTHROW( std::vector<int>{1, 2, 3} == std::vector<int>{1, 2, 3} );
+    CHECK_NOTHROW( std::vector<int>{1, 2, 3} == std::vector<int>{1, 2, 3} );
+
+    REQUIRE(std::vector<int>{1, 2} == std::vector<int>{1, 2});
+    CHECK( std::vector<int>{1, 2} == std::vector<int>{1, 2} );
+    REQUIRE_FALSE(std::vector<int>{1, 2} == std::vector<int>{1, 2, 3});
+    CHECK_FALSE( std::vector<int>{1, 2} == std::vector<int>{1, 2, 3} );
+
+    CHECK_NOFAIL( std::vector<int>{1, 2} == std::vector<int>{1, 2} );
+    CHECKED_IF( std::vector<int>{1, 2} == std::vector<int>{1, 2} ) {
+        REQUIRE(true);
+    } CHECKED_ELSE( std::vector<int>{1, 2} == std::vector<int>{1, 2} ) {
+        CHECK(true);
+    }
+}
+
+TEST_CASE( "non-copyable objects", "[.][failing]" ) {
+    // Thanks to Agustin Bergé (@k-ballo on the cpplang Slack) for raising this
+    std::type_info const& ti = typeid(int);
+    CHECK( ti == typeid(int) );
+}
+
+TEST_CASE("#1514: stderr/stdout is not captured in tests aborted by an exception", "[output-capture][regression][.]") {
+    std::cout << "This would not be caught previously\n" << std::flush;
+    std::clog << "Nor would this\n" << std::flush;
+    // FAIL aborts the test by throwing a Catch exception
+    FAIL("1514");
+}
+
+
+TEST_CASE( "#2025: -c shouldn't cause infinite loop", "[sections][generators][regression][.approvals]" ) {
+    SECTION( "Check cursor from buffer offset" ) {
+        auto bufPos = GENERATE_REF( range( 0, 44 ) );
+        WHEN( "Buffer position is " << bufPos ) { REQUIRE( 1 == 1 ); }
+    }
+}
+
+TEST_CASE("#2025: original repro", "[sections][generators][regression][.approvals]") {
+    auto fov = GENERATE(true, false);
+    DYNAMIC_SECTION("fov_" << fov) {
+        std::cout << "inside with fov: " << fov << '\n';
+    }
+}
+
+TEST_CASE("#2025: same-level sections", "[sections][generators][regression][.approvals]") {
+    SECTION("A") {
+        SUCCEED();
+    }
+    auto i = GENERATE(1, 2, 3);
+    SECTION("B") {
+        REQUIRE(i < 4);
+    }
+}