1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
|
#include "catch.hpp"
namespace {
// Enum without user-provided stream operator
enum Enum1 { Enum1Value0, Enum1Value1 };
// Enum with user-provided stream operator
enum Enum2 { Enum2Value0, Enum2Value1 };
std::ostream& operator<<( std::ostream& os, Enum2 v ) {
return os << "E2{" << static_cast<int>(v) << "}";
}
} // end anonymous namespace
TEST_CASE( "toString(enum)", "[toString][enum]" ) {
Enum1 e0 = Enum1Value0;
CHECK( ::Catch::Detail::stringify(e0) == "0" );
Enum1 e1 = Enum1Value1;
CHECK( ::Catch::Detail::stringify(e1) == "1" );
}
TEST_CASE( "toString(enum w/operator<<)", "[toString][enum]" ) {
Enum2 e0 = Enum2Value0;
CHECK( ::Catch::Detail::stringify(e0) == "E2{0}" );
Enum2 e1 = Enum2Value1;
CHECK( ::Catch::Detail::stringify(e1) == "E2{1}" );
}
// Enum class without user-provided stream operator
namespace {
enum class EnumClass1 { EnumClass1Value0, EnumClass1Value1 };
// Enum class with user-provided stream operator
enum class EnumClass2 { EnumClass2Value0, EnumClass2Value1 };
std::ostream& operator<<( std::ostream& os, EnumClass2 e2 ) {
switch( static_cast<int>( e2 ) ) {
case static_cast<int>( EnumClass2::EnumClass2Value0 ):
return os << "E2/V0";
case static_cast<int>( EnumClass2::EnumClass2Value1 ):
return os << "E2/V1";
default:
return os << "Unknown enum value " << static_cast<int>( e2 );
}
}
} // end anonymous namespace
TEST_CASE( "toString(enum class)", "[toString][enum][enumClass]" ) {
EnumClass1 e0 = EnumClass1::EnumClass1Value0;
CHECK( ::Catch::Detail::stringify(e0) == "0" );
EnumClass1 e1 = EnumClass1::EnumClass1Value1;
CHECK( ::Catch::Detail::stringify(e1) == "1" );
}
TEST_CASE( "toString(enum class w/operator<<)", "[toString][enum][enumClass]" ) {
EnumClass2 e0 = EnumClass2::EnumClass2Value0;
CHECK( ::Catch::Detail::stringify(e0) == "E2/V0" );
EnumClass2 e1 = EnumClass2::EnumClass2Value1;
CHECK( ::Catch::Detail::stringify(e1) == "E2/V1" );
auto e3 = static_cast<EnumClass2>(10);
CHECK( ::Catch::Detail::stringify(e3) == "Unknown enum value 10" );
}
enum class EnumClass3 { Value1, Value2, Value3, Value4 };
CATCH_REGISTER_ENUM( EnumClass3, EnumClass3::Value1, EnumClass3::Value2, EnumClass3::Value3 )
TEST_CASE( "Enums can quickly have stringification enabled using REGISTER_ENUM" ) {
using Catch::Detail::stringify;
REQUIRE( stringify( EnumClass3::Value1 ) == "Value1" );
REQUIRE( stringify( EnumClass3::Value2 ) == "Value2" );
REQUIRE( stringify( EnumClass3::Value3 ) == "Value3" );
REQUIRE( stringify( EnumClass3::Value4 ) == "{** unexpected enum value **}" );
EnumClass3 ec3 = EnumClass3 ::Value2;
REQUIRE( stringify( ec3 ) == "Value2" );
}
namespace Bikeshed {
enum class Colours { Red, Green, Blue };
}
// Important!: This macro must appear at top level scope - not inside a namespace
// You can fully qualify the names, or use a using if you prefer
CATCH_REGISTER_ENUM( Bikeshed::Colours,
Bikeshed::Colours::Red,
Bikeshed::Colours::Green,
Bikeshed::Colours::Blue )
TEST_CASE( "Enums in namespaces can quickly have stringification enabled using REGISTER_ENUM" ) {
using Catch::Detail::stringify;
REQUIRE( stringify( Bikeshed::Colours::Red ) == "Red" );
REQUIRE( stringify( Bikeshed::Colours::Blue ) == "Blue" );
}
|
