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Add STATIC_REQUIRE assertion

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By default, it expands into a `static_assert` + `SUCCEED` pair, but
it can also be deferred to runtime by defining
`CATCH_CONFIG_RUNTIME_STATIC_REQUIRE`, which causes it to expand
into plain old `REQUIRE`.

Closes #1362
Closes #1356
This commit is contained in:
Martin Hořeňovský 2018-10-13 21:29:59 +02:00
parent 0144ae9ad2
commit 054d356332
8 changed files with 75 additions and 18 deletions
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24
include/catch.hpp
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@ -145,6 +145,15 @@
#define CATCH_ANON_TEST_CASE() INTERNAL_CATCH_TESTCASE()
#if !defined(CATCH_CONFIG_RUNTIME_STATIC_REQUIRE)
#define CATCH_STATIC_REQUIRE( ... ) static_assert( __VA_ARGS__ , #__VA_ARGS__ ); CATCH_SUCCEED( #__VA_ARGS__ )
#define CATCH_STATIC_REQUIRE_FALSE( ... ) static_assert( !(__VA_ARGS__), "!(" #__VA_ARGS__ ")" ); CATCH_SUCCEED( #__VA_ARGS__ )
#else
#define CATCH_STATIC_REQUIRE( ... ) CATCH_REQUIRE( __VA_ARGS__ )
#define CATCH_STATIC_REQUIRE_FALSE( ... ) CATCH_REQUIRE_FALSE( __VA_ARGS__ )
#endif
// "BDD-style" convenience wrappers
#define CATCH_SCENARIO( ... ) CATCH_TEST_CASE( "Scenario: " __VA_ARGS__ )
#define CATCH_SCENARIO_METHOD( className, ... ) INTERNAL_CATCH_TEST_CASE_METHOD( className, "Scenario: " __VA_ARGS__ )
@ -205,6 +214,14 @@
#define SUCCEED( ... ) INTERNAL_CATCH_MSG( "SUCCEED", Catch::ResultWas::Ok, Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )
#define ANON_TEST_CASE() INTERNAL_CATCH_TESTCASE()
#if !defined(CATCH_CONFIG_RUNTIME_STATIC_REQUIRE)
#define STATIC_REQUIRE( ... ) static_assert( __VA_ARGS__, #__VA_ARGS__ ); SUCCEED( #__VA_ARGS__ )
#define STATIC_REQUIRE_FALSE( ... ) static_assert( !(__VA_ARGS__), "!(" #__VA_ARGS__ ")" ); SUCCEED( "!(" #__VA_ARGS__ ")" )
#else
#define STATIC_REQUIRE( ... ) REQUIRE( __VA_ARGS__ )
#define STATIC_REQUIRE_FALSE( ... ) REQUIRE_FALSE( __VA_ARGS__ )
#endif
#endif
#define CATCH_TRANSLATE_EXCEPTION( signature ) INTERNAL_CATCH_TRANSLATE_EXCEPTION( signature )
@ -285,6 +302,9 @@ using Catch::Detail::Approx;
#define CATCH_THEN( desc )
#define CATCH_AND_THEN( desc )
#define CATCH_STATIC_REQUIRE( ... ) (void)(0)
#define CATCH_STATIC_REQUIRE_FALSE( ... ) (void)(0)
// If CATCH_CONFIG_PREFIX_ALL is not defined then the CATCH_ prefix is not required
#else
@ -335,6 +355,10 @@ using Catch::Detail::Approx;
#define SUCCEED( ... ) (void)(0)
#define ANON_TEST_CASE() INTERNAL_CATCH_TESTCASE_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_S_T____ ))
#define STATIC_REQUIRE( ... ) (void)(0)
#define STATIC_REQUIRE_FALSE( ... ) (void)(0)
#endif
#define CATCH_TRANSLATE_EXCEPTION( signature ) INTERNAL_CATCH_TRANSLATE_EXCEPTION_NO_REG( INTERNAL_CATCH_UNIQUE_NAME( catch_internal_ExceptionTranslator ), signature )

7
projects/ExtraTests/X01-PrefixedMacros.cpp
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@ -2,8 +2,12 @@
// Test that Catch's prefixed macros compile and run properly.
#define CATCH_CONFIG_MAIN
// This won't provide full coverage, but it might be worth checking
// the other branch as well
#define CATCH_CONFIG_RUNTIME_STATIC_REQUIRE
#include <catch2/catch.hpp>
#include <type_traits>
#include <stdexcept>
[[noreturn]]
@ -52,6 +56,9 @@ CATCH_TEST_CASE("PrefixedMacros") {
CATCH_FAIL_CHECK( "failure" );
}
}
CATCH_STATIC_REQUIRE( std::is_void<void>::value );
CATCH_STATIC_REQUIRE_FALSE( std::is_void<int>::value );
}
CATCH_ANON_TEST_CASE() {

2
projects/SelfTest/Baselines/compact.sw.approved.txt
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@ -496,6 +496,8 @@ Exception.tests.cpp:<line number>: failed: unexpected exception with message: 'c
Tricky.tests.cpp:<line number>: passed: True for: {?}
Tricky.tests.cpp:<line number>: passed: !False for: true
Tricky.tests.cpp:<line number>: passed: !(False) for: !{?}
Compilation.tests.cpp:<line number>: passed: with 1 message: 'std::is_void<void>::value'
Compilation.tests.cpp:<line number>: passed: with 1 message: '!(std::is_void<int>::value)'
Condition.tests.cpp:<line number>: failed: data.int_seven > 7 for: 7 > 7
Condition.tests.cpp:<line number>: failed: data.int_seven < 7 for: 7 < 7
Condition.tests.cpp:<line number>: failed: data.int_seven > 8 for: 7 > 8

4
projects/SelfTest/Baselines/console.std.approved.txt
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@ -1098,6 +1098,6 @@ due to unexpected exception with message:
Why would you throw a std::string?
===============================================================================
test cases: 214 | 161 passed | 49 failed | 4 failed as expected
assertions: 1229 | 1100 passed | 108 failed | 21 failed as expected
test cases: 215 | 162 passed | 49 failed | 4 failed as expected
assertions: 1231 | 1102 passed | 108 failed | 21 failed as expected

20
projects/SelfTest/Baselines/console.sw.approved.txt
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@ -4411,6 +4411,22 @@ PASSED:
with expansion:
!{?}
-------------------------------------------------------------------------------
Optionally static assertions
-------------------------------------------------------------------------------
Compilation.tests.cpp:<line number>
...............................................................................
Compilation.tests.cpp:<line number>:
PASSED:
with message:
std::is_void<void>::value
Compilation.tests.cpp:<line number>:
PASSED:
with message:
!(std::is_void<int>::value)
-------------------------------------------------------------------------------
Ordering comparison checks that should fail
-------------------------------------------------------------------------------
@ -10848,6 +10864,6 @@ Misc.tests.cpp:<line number>:
PASSED:
===============================================================================
test cases: 214 | 148 passed | 62 failed | 4 failed as expected
assertions: 1243 | 1100 passed | 122 failed | 21 failed as expected
test cases: 215 | 149 passed | 62 failed | 4 failed as expected
assertions: 1245 | 1102 passed | 122 failed | 21 failed as expected

3
projects/SelfTest/Baselines/junit.sw.approved.txt
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@ -1,7 +1,7 @@
<?xml version="1.0" encoding="UTF-8"?>
<testsuitesloose text artifact
>
<testsuite name="<exe-name>" errors="17" failures="106" tests="1244" hostname="tbd" time="{duration}" timestamp="{iso8601-timestamp}">
<testsuite name="<exe-name>" errors="17" failures="106" tests="1246" hostname="tbd" time="{duration}" timestamp="{iso8601-timestamp}">
<testcase classname="<exe-name>.global" name="# A test name that starts with a #" time="{duration}"/>
<testcase classname="<exe-name>.global" name="#1005: Comparing pointer to int and long (NULL can be either on various systems)" time="{duration}"/>
<testcase classname="<exe-name>.global" name="#1027" time="{duration}"/>
@ -375,6 +375,7 @@ Exception.tests.cpp:<line number>
</error>
</testcase>
<testcase classname="<exe-name>.global" name="Objects that evaluated in boolean contexts can be checked" time="{duration}"/>
<testcase classname="<exe-name>.global" name="Optionally static assertions" time="{duration}"/>
<testcase classname="<exe-name>.global" name="Ordering comparison checks that should fail" time="{duration}">
<failure message="7 > 7" type="CHECK">
Condition.tests.cpp:<line number>

7
projects/SelfTest/Baselines/xml.sw.approved.txt
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@ -4409,6 +4409,9 @@
</Expression>
<OverallResult success="true"/>
</TestCase>
<TestCase name="Optionally static assertions" tags="[compilation]" filename="projects/<exe-name>/UsageTests/Compilation.tests.cpp" >
<OverallResult success="true"/>
</TestCase>
<TestCase name="Ordering comparison checks that should fail" tags="[.][failing]" filename="projects/<exe-name>/UsageTests/Condition.tests.cpp" >
<Expression success="false" type="CHECK" filename="projects/<exe-name>/UsageTests/Condition.tests.cpp" >
<Original>
@ -11333,7 +11336,7 @@ loose text artifact
</Section>
<OverallResult success="true"/>
</TestCase>
<OverallResults successes="1100" failures="123" expectedFailures="21"/>
<OverallResults successes="1102" failures="123" expectedFailures="21"/>
</Group>
<OverallResults successes="1100" failures="122" expectedFailures="21"/>
<OverallResults successes="1102" failures="122" expectedFailures="21"/>
</Catch>

10
projects/SelfTest/UsageTests/Compilation.tests.cpp
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@ -5,13 +5,12 @@
* file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
*/
#include <type_traits>
// Setup for #1403 -- look for global overloads of operator << for classes
// in a different namespace.
#include <ostream>
namespace foo {
struct helper_1403 {
bool operator==(helper_1403) const { return true; }
@ -180,6 +179,11 @@ namespace { namespace CompilationTests {
REQUIRE(h1 == h2);
}
TEST_CASE("Optionally static assertions", "[compilation]") {
STATIC_REQUIRE( std::is_void<void>::value );
STATIC_REQUIRE_FALSE( std::is_void<int>::value );
}
}} // namespace CompilationTests