Merge commit '48b3d82ffe1ed19db9ba3cf7e6536ecf92e27391' as 'unittest/Catch'

1 files changed, 335 insertions, 0 deletions

diff --git a/unittest/Catch/projects/SelfTest/ConditionTests.cpp b/unittest/Catch/projects/SelfTest/ConditionTests.cpp
new file mode 100644
index 0000000..d1b7ed2
--- /dev/null
+++ b/unittest/Catch/projects/SelfTest/ConditionTests.cpp
@@ -0,0 +1,335 @@
+/*
+ *  Created by Phil on 08/11/2010.
+ *  Copyright 2010 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)
+ */
+#ifdef __clang__
+#   pragma clang diagnostic ignored "-Wpadded"
+#   pragma clang diagnostic ignored "-Wc++98-compat"
+#endif
+
+#include "catch.hpp"
+
+#include <string>
+#include <limits>
+
+struct TestData {
+    TestData()
+    :   int_seven( 7 ),
+        str_hello( "hello" ),
+        float_nine_point_one( 9.1f ),
+        double_pi( 3.1415926535 )
+    {}
+
+    int int_seven;
+    std::string str_hello;
+    float float_nine_point_one;
+    double double_pi;
+};
+
+
+struct TestDef {
+    TestDef& operator + ( const std::string& ) {
+        return *this;
+    }
+    TestDef& operator[]( const std::string& ) {
+        return *this;
+    }
+
+};
+
+// The "failing" tests all use the CHECK macro, which continues if the specific test fails.
+// This allows us to see all results, even if an earlier check fails
+
+// Equality tests
+TEST_CASE( "Equality checks that should succeed", "" )
+{
+
+    TestDef td;
+    td + "hello" + "hello";
+
+    TestData data;
+
+    REQUIRE( data.int_seven == 7 );
+    REQUIRE( data.float_nine_point_one == Approx( 9.1f ) );
+    REQUIRE( data.double_pi == Approx( 3.1415926535 ) );
+    REQUIRE( data.str_hello == "hello" );
+    REQUIRE( "hello" == data.str_hello );
+    REQUIRE( data.str_hello.size() == 5 );
+
+    double x = 1.1 + 0.1 + 0.1;
+    REQUIRE( x == Approx( 1.3 ) );
+}
+
+TEST_CASE( "Equality checks that should fail", "[.][failing][!mayfail]" )
+{
+    TestData data;
+
+    CHECK( data.int_seven == 6 );
+    CHECK( data.int_seven == 8 );
+    CHECK( data.int_seven == 0 );
+    CHECK( data.float_nine_point_one == Approx( 9.11f ) );
+    CHECK( data.float_nine_point_one == Approx( 9.0f ) );
+    CHECK( data.float_nine_point_one == Approx( 1 ) );
+    CHECK( data.float_nine_point_one == Approx( 0 ) );
+    CHECK( data.double_pi == Approx( 3.1415 ) );
+    CHECK( data.str_hello == "goodbye" );
+    CHECK( data.str_hello == "hell" );
+    CHECK( data.str_hello == "hello1" );
+    CHECK( data.str_hello.size() == 6 );
+
+    double x = 1.1 + 0.1 + 0.1;
+    CHECK( x == Approx( 1.301 ) );
+}
+
+TEST_CASE( "Inequality checks that should succeed", "" )
+{
+    TestData data;
+
+    REQUIRE( data.int_seven != 6 );
+    REQUIRE( data.int_seven != 8 );
+    REQUIRE( data.float_nine_point_one != Approx( 9.11f ) );
+    REQUIRE( data.float_nine_point_one != Approx( 9.0f ) );
+    REQUIRE( data.float_nine_point_one != Approx( 1 ) );
+    REQUIRE( data.float_nine_point_one != Approx( 0 ) );
+    REQUIRE( data.double_pi != Approx( 3.1415 ) );
+    REQUIRE( data.str_hello != "goodbye" );
+    REQUIRE( data.str_hello != "hell" );
+    REQUIRE( data.str_hello != "hello1" );
+    REQUIRE( data.str_hello.size() != 6 );
+}
+
+TEST_CASE( "Inequality checks that should fail", "[.][failing]" )
+{
+    TestData data;
+
+    CHECK( data.int_seven != 7 );
+    CHECK( data.float_nine_point_one != Approx( 9.1f ) );
+    CHECK( data.double_pi != Approx( 3.1415926535 ) );
+    CHECK( data.str_hello != "hello" );
+    CHECK( data.str_hello.size() != 5 );
+}
+
+// Ordering comparison tests
+TEST_CASE( "Ordering comparison checks that should succeed", "" )
+{
+    TestData data;
+
+    REQUIRE( data.int_seven < 8 );
+    REQUIRE( data.int_seven > 6 );
+    REQUIRE( data.int_seven > 0 );
+    REQUIRE( data.int_seven > -1 );
+
+    REQUIRE( data.int_seven >= 7 );
+    REQUIRE( data.int_seven >= 6 );
+    REQUIRE( data.int_seven <= 7 );
+    REQUIRE( data.int_seven <= 8 );
+
+    REQUIRE( data.float_nine_point_one > 9 );
+    REQUIRE( data.float_nine_point_one < 10 );
+    REQUIRE( data.float_nine_point_one < 9.2 );
+
+    REQUIRE( data.str_hello <= "hello" );
+    REQUIRE( data.str_hello >= "hello" );
+
+    REQUIRE( data.str_hello < "hellp" );
+    REQUIRE( data.str_hello < "zebra" );
+    REQUIRE( data.str_hello > "hellm" );
+    REQUIRE( data.str_hello > "a" );
+}
+
+TEST_CASE( "Ordering comparison checks that should fail", "[.][failing]" )
+{
+    TestData data;
+
+    CHECK( data.int_seven > 7 );
+    CHECK( data.int_seven < 7 );
+    CHECK( data.int_seven > 8 );
+    CHECK( data.int_seven < 6 );
+    CHECK( data.int_seven < 0 );
+    CHECK( data.int_seven < -1 );
+
+    CHECK( data.int_seven >= 8 );
+    CHECK( data.int_seven <= 6 );
+
+    CHECK( data.float_nine_point_one < 9 );
+    CHECK( data.float_nine_point_one > 10 );
+    CHECK( data.float_nine_point_one > 9.2 );
+
+    CHECK( data.str_hello > "hello" );
+    CHECK( data.str_hello < "hello" );
+    CHECK( data.str_hello > "hellp" );
+    CHECK( data.str_hello > "z" );
+    CHECK( data.str_hello < "hellm" );
+    CHECK( data.str_hello < "a" );
+
+    CHECK( data.str_hello >= "z" );
+    CHECK( data.str_hello <= "a" );
+}
+
+// Comparisons with int literals
+TEST_CASE( "Comparisons with int literals don't warn when mixing signed/ unsigned", "" )
+{
+    int i = 1;
+    unsigned int ui = 2;
+    long l = 3;
+    unsigned long ul = 4;
+    char c = 5;
+    unsigned char uc = 6;
+
+    REQUIRE( i == 1 );
+    REQUIRE( ui == 2 );
+    REQUIRE( l == 3 );
+    REQUIRE( ul == 4 );
+    REQUIRE( c == 5 );
+    REQUIRE( uc == 6 );
+
+    REQUIRE( 1 == i );
+    REQUIRE( 2 == ui );
+    REQUIRE( 3 == l );
+    REQUIRE( 4 == ul );
+    REQUIRE( 5 == c );
+    REQUIRE( 6 == uc );
+
+    REQUIRE( (std::numeric_limits<unsigned long>::max)() > ul );
+}
+
+// Disable warnings about sign conversions for the next two tests
+// (as we are deliberately invoking them)
+// - Currently only disabled for GCC/ LLVM. Should add VC++ too
+#ifdef  __GNUC__
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wsign-compare"
+#pragma GCC diagnostic ignored "-Wsign-conversion"
+#endif
+#ifdef _MSC_VER
+#pragma warning(disable:4389) // '==' : signed/unsigned mismatch
+#endif
+
+TEST_CASE( "comparisons between int variables", "" )
+{
+	long            long_var = 1L;
+	unsigned char	unsigned_char_var = 1;
+	unsigned short	unsigned_short_var = 1;
+	unsigned int	unsigned_int_var = 1;
+	unsigned long	unsigned_long_var = 1L;
+
+	REQUIRE( long_var == unsigned_char_var );
+	REQUIRE( long_var == unsigned_short_var );
+	REQUIRE( long_var == unsigned_int_var );
+	REQUIRE( long_var == unsigned_long_var );
+}
+
+TEST_CASE( "comparisons between const int variables", "" )
+{
+	const unsigned char     unsigned_char_var = 1;
+	const unsigned short    unsigned_short_var = 1;
+	const unsigned int      unsigned_int_var = 1;
+	const unsigned long     unsigned_long_var = 1L;
+
+	REQUIRE( unsigned_char_var == 1 );
+	REQUIRE( unsigned_short_var == 1 );
+	REQUIRE( unsigned_int_var == 1 );
+	REQUIRE( unsigned_long_var == 1 );
+}
+
+TEST_CASE( "Comparisons between unsigned ints and negative signed ints match c++ standard behaviour", "" )
+{
+    CHECK( ( -1 > 2u ) );
+    CHECK( -1 > 2u );
+
+    CHECK( ( 2u < -1 ) );
+    CHECK( 2u < -1 );
+
+    const int minInt = (std::numeric_limits<int>::min)();
+    CHECK( ( minInt > 2u ) );
+    CHECK( minInt > 2u );
+}
+
+template<typename T>
+struct Ex
+{
+    Ex( T ){}
+
+    bool operator == ( const T& ) const { return true; }
+    T operator * ( const T& ) const { return T(); }
+};
+
+TEST_CASE( "Comparisons between ints where one side is computed", "" )
+{
+     CHECK( 54 == 6*9 );
+}
+
+#ifdef  __GNUC__
+#pragma GCC diagnostic pop
+#endif
+
+inline const char* returnsConstNull(){ return CATCH_NULL; }
+inline char* returnsNull(){ return CATCH_NULL; }
+
+TEST_CASE( "Pointers can be compared to null", "" )
+{
+    TestData* p = CATCH_NULL;
+    TestData* pNULL = CATCH_NULL;
+
+    REQUIRE( p == CATCH_NULL );
+    REQUIRE( p == pNULL );
+
+    TestData data;
+    p = &data;
+
+    REQUIRE( p != CATCH_NULL );
+
+    const TestData* cp = p;
+    REQUIRE( cp != CATCH_NULL );
+
+    const TestData* const cpc = p;
+    REQUIRE( cpc != CATCH_NULL );
+
+    REQUIRE( returnsNull() == CATCH_NULL );
+    REQUIRE( returnsConstNull() == CATCH_NULL );
+
+    REQUIRE( CATCH_NULL != p );
+}
+
+// Not (!) tests
+// The problem with the ! operator is that it has right-to-left associativity.
+// This means we can't isolate it when we decompose. The simple REQUIRE( !false ) form, therefore,
+// cannot have the operand value extracted. The test will work correctly, and the situation
+// is detected and a warning issued.
+// An alternative form of the macros (CHECK_FALSE and REQUIRE_FALSE) can be used instead to capture
+// the operand value.
+TEST_CASE( "'Not' checks that should succeed", "" )
+{
+    bool falseValue = false;
+
+    REQUIRE( false == false );
+    REQUIRE( true == true );
+    REQUIRE( !false );
+    REQUIRE_FALSE( false );
+
+    REQUIRE( !falseValue );
+    REQUIRE_FALSE( falseValue );
+
+    REQUIRE( !(1 == 2) );
+    REQUIRE_FALSE( 1 == 2 );
+}
+
+TEST_CASE( "'Not' checks that should fail", "[.][failing]" )
+{
+    bool trueValue = true;
+
+    CHECK( false != false );
+    CHECK( true != true );
+    CHECK( !true );
+    CHECK_FALSE( true );
+
+    CHECK( !trueValue );
+    CHECK_FALSE( trueValue );
+
+    CHECK( !(1 == 1) );
+    CHECK_FALSE( 1 == 1 );
+}
+