mirror of
https://github.com/catchorg/Catch2.git
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205 lines
6.3 KiB
C++
205 lines
6.3 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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#include <catch2/catch_test_macros.hpp>
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#include <catch2/catch_translate_exception.hpp>
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#include <catch2/matchers/catch_matchers_string.hpp>
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#include <string>
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#include <stdexcept>
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#ifdef _MSC_VER
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#pragma warning(disable:4702) // Unreachable code -- unconditional throws and so on
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#endif
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#ifdef __clang__
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#pragma clang diagnostic push
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#pragma clang diagnostic ignored "-Wweak-vtables"
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#pragma clang diagnostic ignored "-Wmissing-noreturn"
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#pragma clang diagnostic ignored "-Wunreachable-code-return"
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#endif
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namespace {
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int thisThrows() {
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throw std::domain_error("expected exception");
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return 1;
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}
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int thisDoesntThrow() {
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return 0;
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}
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class CustomException {
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public:
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explicit CustomException(const std::string& msg)
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: m_msg(msg) {}
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std::string const& getMessage() const {
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return m_msg;
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}
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private:
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std::string m_msg;
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};
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class CustomStdException : public std::exception {
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public:
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explicit CustomStdException(const std::string& msg)
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: m_msg(msg) {}
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~CustomStdException() noexcept override = default;
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CustomStdException( CustomStdException const& ) = default;
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CustomStdException& operator=( CustomStdException const& ) = default;
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std::string const& getMessage() const {
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return m_msg;
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}
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private:
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std::string m_msg;
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};
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[[noreturn]] void throwCustom() {
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throw CustomException("custom exception - not std");
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}
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}
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TEST_CASE( "When checked exceptions are thrown they can be expected or unexpected", "[!throws]" ) {
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REQUIRE_THROWS_AS( thisThrows(), std::domain_error );
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REQUIRE_NOTHROW( thisDoesntThrow() );
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REQUIRE_THROWS( thisThrows() );
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}
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TEST_CASE( "Expected exceptions that don't throw or unexpected exceptions fail the test", "[.][failing][!throws]" ) {
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CHECK_THROWS_AS( thisThrows(), std::string );
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CHECK_THROWS_AS( thisDoesntThrow(), std::domain_error );
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CHECK_NOTHROW( thisThrows() );
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}
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TEST_CASE( "When unchecked exceptions are thrown directly they are always failures", "[.][failing][!throws]" ) {
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throw std::domain_error( "unexpected exception" );
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}
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TEST_CASE( "An unchecked exception reports the line of the last assertion", "[.][failing][!throws]" ) {
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CHECK( 1 == 1 );
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throw std::domain_error( "unexpected exception" );
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}
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TEST_CASE( "When unchecked exceptions are thrown from sections they are always failures", "[.][failing][!throws]" ) {
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SECTION( "section name" ) {
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throw std::domain_error("unexpected exception");
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}
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}
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TEST_CASE( "When unchecked exceptions are thrown from functions they are always failures", "[.][failing][!throws]" ) {
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CHECK( thisThrows() == 0 );
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}
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TEST_CASE( "When unchecked exceptions are thrown during a REQUIRE the test should abort fail", "[.][failing][!throws]" ) {
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REQUIRE( thisThrows() == 0 );
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FAIL( "This should never happen" );
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}
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TEST_CASE( "When unchecked exceptions are thrown during a CHECK the test should continue", "[.][failing][!throws]" ) {
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try {
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CHECK(thisThrows() == 0);
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}
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catch(...) {
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FAIL( "This should never happen" );
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}
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}
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TEST_CASE( "When unchecked exceptions are thrown, but caught, they do not affect the test", "[!throws]" ) {
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try {
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throw std::domain_error( "unexpected exception" );
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}
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catch(...) {}
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}
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CATCH_TRANSLATE_EXCEPTION( CustomException const& ex ) {
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return ex.getMessage();
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}
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CATCH_TRANSLATE_EXCEPTION( CustomStdException const& ex ) {
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return ex.getMessage();
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}
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CATCH_TRANSLATE_EXCEPTION( double const& ex ) {
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return Catch::Detail::stringify( ex );
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}
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TEST_CASE("Non-std exceptions can be translated", "[.][failing][!throws]" ) {
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throw CustomException( "custom exception" );
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}
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TEST_CASE("Custom std-exceptions can be custom translated", "[.][failing][!throws]" ) {
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throw CustomStdException( "custom std exception" );
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}
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TEST_CASE( "Custom exceptions can be translated when testing for nothrow", "[.][failing][!throws]" ) {
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REQUIRE_NOTHROW( throwCustom() );
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}
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TEST_CASE( "Custom exceptions can be translated when testing for throwing as something else", "[.][failing][!throws]" ) {
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REQUIRE_THROWS_AS( throwCustom(), std::exception );
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}
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TEST_CASE( "Unexpected exceptions can be translated", "[.][failing][!throws]" ) {
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throw double( 3.14 );
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}
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TEST_CASE("Thrown string literals are translated", "[.][failing][!throws]") {
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throw "For some reason someone is throwing a string literal!";
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}
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TEST_CASE("thrown std::strings are translated", "[.][failing][!throws]") {
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throw std::string{ "Why would you throw a std::string?" };
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}
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TEST_CASE( "Exception messages can be tested for", "[!throws]" ) {
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using namespace Catch::Matchers;
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SECTION( "exact match" )
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REQUIRE_THROWS_WITH( thisThrows(), "expected exception" );
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SECTION( "different case" )
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REQUIRE_THROWS_WITH( thisThrows(), Equals( "expecteD Exception", Catch::CaseSensitive::No ) );
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SECTION( "wildcarded" ) {
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REQUIRE_THROWS_WITH( thisThrows(), StartsWith( "expected" ) );
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REQUIRE_THROWS_WITH( thisThrows(), EndsWith( "exception" ) );
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REQUIRE_THROWS_WITH( thisThrows(), ContainsSubstring( "except" ) );
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REQUIRE_THROWS_WITH( thisThrows(), ContainsSubstring( "exCept", Catch::CaseSensitive::No ) );
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}
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}
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TEST_CASE( "Mismatching exception messages failing the test", "[.][failing][!throws]" ) {
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REQUIRE_THROWS_WITH( thisThrows(), "expected exception" );
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REQUIRE_THROWS_WITH( thisThrows(), "should fail" );
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REQUIRE_THROWS_WITH( thisThrows(), "expected exception" );
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}
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TEST_CASE( "#748 - captures with unexpected exceptions", "[.][failing][!throws][!shouldfail]" ) {
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int answer = 42;
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CAPTURE( answer );
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// the message should be printed on the first two sections but not on the third
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SECTION( "outside assertions" ) {
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thisThrows();
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}
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SECTION( "inside REQUIRE_NOTHROW" ) {
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REQUIRE_NOTHROW( thisThrows() );
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}
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SECTION( "inside REQUIRE_THROWS" ) {
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REQUIRE_THROWS( thisThrows() );
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}
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}
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#ifdef __clang__
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#pragma clang diagnostic pop
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#endif
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