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doctest/examples/all_features/assertion_macros.cpp

236 lines
8.0 KiB
C++

#define DOCTEST_CONFIG_ASSERTS_RETURN_VALUES
#include <doctest/doctest.h>
#include "header.h"
DOCTEST_MAKE_STD_HEADERS_CLEAN_FROM_WARNINGS_ON_WALL_BEGIN
#include <stdexcept>
#include <cmath>
DOCTEST_MAKE_STD_HEADERS_CLEAN_FROM_WARNINGS_ON_WALL_END
TEST_CASE("normal macros") {
int a = 5;
int b = 5;
CHECK(throw_if(true, std::runtime_error("whops!")) == 42);
CHECK_FALSE(!(a == b));
REQUIRE(a == b);
CHECK_EQ(a, b);
CHECK(doctest::Approx(0.1000001) == 0.1000002);
CHECK(doctest::Approx(0.502) == 0.501);
}
TEST_CASE("expressions should be evaluated only once") {
int a = 5;
REQUIRE(++a == 6);
REQUIRE_EQ(++a, 7);
}
TEST_CASE("exceptions-related macros") {
CHECK_THROWS(throw_if(true, 0));
CHECK_THROWS(throw_if(false, 0)); // fails
CHECK_THROWS_AS(throw_if(true, 0), int);
CHECK_THROWS_AS(throw_if(true, 0), char); // fails
CHECK_THROWS_AS(throw_if(false, 0), int); // fails
CHECK_THROWS_WITH(throw_if(true, "whops!"), "whops! no match!"); // fails
CHECK_THROWS_WITH(throw_if(true, "whops! does it match?"), doctest::Contains("whops!"));
CHECK_THROWS_WITH(throw_if(true, "whops! does it match?"), doctest::Contains("whops! no match!")); // fails
CHECK_THROWS_WITH_AS(throw_if(true, "whops!"), "whops! no match!", bool); // fails
CHECK_THROWS_WITH_AS(throw_if(true, "whops!"), "whops!", int); // fails
CHECK_THROWS_WITH_AS(throw_if(true, "whops! does it match?"), doctest::Contains("whops! no match!"), int); // fails
CHECK_NOTHROW(throw_if(true, 0)); // fails
CHECK_NOTHROW(throw_if(false, 0));
}
TEST_CASE("exceptions-related macros for std::exception") {
CHECK_THROWS(throw_if(false, 0));
CHECK_THROWS_AS(throw_if(false, std::runtime_error("whops!")), std::exception);
CHECK_THROWS_AS(throw_if(true, std::runtime_error("whops!")), const std::exception&);
CHECK_THROWS_AS(throw_if(true, std::runtime_error("whops!")), int);
CHECK_THROWS_WITH(throw_if(false, ""), "whops!");
REQUIRE_NOTHROW(throw_if(true, std::runtime_error("whops!")));
}
// =================================================================================================
// == TESTING (ALMOST) ALL ASSERTS THAT THEY ACT ACCORDINGLY - not interesting examples...
// =================================================================================================
TEST_CASE("WARN level of asserts don't fail the test case") {
WARN(0);
WARN_FALSE(1);
WARN_THROWS(throw_if(false, 0));
WARN_THROWS_WITH(throw_if(true, ""), "whops!");
WARN_THROWS_WITH(throw_if(false, ""), "whops!");
WARN_THROWS_AS(throw_if(false, 0), bool);
WARN_THROWS_AS(throw_if(true, 0), bool);
WARN_THROWS_WITH_AS(throw_if(false, ""), "whops!", int);
WARN_THROWS_WITH_AS(throw_if(true, ""), "whops!", int);
WARN_NOTHROW(throw_if(true, 0));
WARN_EQ(1, 0);
doctest::String myStr = doctest::String("Hello world, how are you doing? Well, nice to meet you, Goodbye!");
WARN_EQ(myStr, doctest::Contains("Hello"));
WARN(myStr == doctest::Contains("Goodbye"));
WARN(myStr != doctest::Contains("goodbye"));
WARN_UNARY(0);
WARN_UNARY_FALSE(1);
}
TEST_CASE("CHECK level of asserts fail the test case but don't abort it") {
CHECK(0);
CHECK_FALSE(1);
CHECK_THROWS(throw_if(false, 0));
CHECK_THROWS_AS(throw_if(false, 0), bool);
CHECK_THROWS_AS(throw_if(true, 0), bool);
CHECK_THROWS_WITH(throw_if(true, 0), "unrecognized");
CHECK_THROWS_WITH_AS(throw_if(true, 0), "unrecognized", int);
CHECK_NOTHROW(throw_if(true, 0));
CHECK_EQ(1, 0);
doctest::String myStr = doctest::String("Hello world, how are you doing? Well, nice to meet you, Goodbye!");
CHECK_EQ(myStr, doctest::Contains("Hello"));
CHECK(myStr == doctest::Contains("Goodbye"));
CHECK(myStr != doctest::Contains("goodbye"));
CHECK_UNARY(0);
CHECK_UNARY_FALSE(1);
MESSAGE("reached!");
}
TEST_CASE("REQUIRE level of asserts fail and abort the test case - 1") {
REQUIRE(0);
MESSAGE("should not be reached!");
}
TEST_CASE("REQUIRE level of asserts fail and abort the test case - 2") {
REQUIRE_FALSE(1);
MESSAGE("should not be reached!");
}
TEST_CASE("REQUIRE level of asserts fail and abort the test case - 3") {
REQUIRE_THROWS(throw_if(false, 0));
MESSAGE("should not be reached!");
}
TEST_CASE("REQUIRE level of asserts fail and abort the test case - 4") {
REQUIRE_THROWS_AS(throw_if(false, 0), bool);
MESSAGE("should not be reached!");
}
TEST_CASE("REQUIRE level of asserts fail and abort the test case - 5") {
REQUIRE_THROWS_AS(throw_if(true, 0), bool);
MESSAGE("should not be reached!");
}
TEST_CASE("REQUIRE level of asserts fail and abort the test case - 6") {
REQUIRE_THROWS_WITH(throw_if(false, ""), "whops!");
MESSAGE("should not be reached!");
}
TEST_CASE("REQUIRE level of asserts fail and abort the test case - 7") {
REQUIRE_THROWS_WITH(throw_if(true, ""), "whops!");
MESSAGE("should not be reached!");
}
TEST_CASE("REQUIRE level of asserts fail and abort the test case - 8") {
REQUIRE_THROWS_WITH_AS(throw_if(false, ""), "whops!", bool);
MESSAGE("should not be reached!");
}
TEST_CASE("REQUIRE level of asserts fail and abort the test case - 9") {
REQUIRE_THROWS_WITH_AS(throw_if(true, ""), "whops!", bool);
MESSAGE("should not be reached!");
}
TEST_CASE("REQUIRE level of asserts fail and abort the test case - 10") {
REQUIRE_NOTHROW(throw_if(true, 0));
MESSAGE("should not be reached!");
}
TEST_CASE("REQUIRE level of asserts fail and abort the test case - 11") {
REQUIRE_EQ(1, 0);
MESSAGE("should not be reached!");
}
TEST_CASE("REQUIRE level of asserts fail and abort the test case - 12") {
REQUIRE_UNARY(0);
MESSAGE("should not be reached!");
}
TEST_CASE("REQUIRE level of asserts fail and abort the test case - 13") {
REQUIRE_UNARY_FALSE(1);
MESSAGE("should not be reached!");
}
TEST_CASE("all binary assertions") {
WARN_EQ(1, 1);
CHECK_EQ(1, 1);
REQUIRE_EQ(1, 1);
WARN_NE(1, 0);
CHECK_NE(1, 0);
REQUIRE_NE(1, 0);
WARN_GT(1, 0);
CHECK_GT(1, 0);
REQUIRE_GT(1, 0);
WARN_LT(0, 1);
CHECK_LT(0, 1);
REQUIRE_LT(0, 1);
WARN_GE(1, 1);
CHECK_GE(1, 1);
REQUIRE_GE(1, 1);
WARN_LE(1, 1);
CHECK_LE(1, 1);
REQUIRE_LE(1, 1);
WARN_UNARY(1);
CHECK_UNARY(1);
REQUIRE_UNARY(1);
WARN_UNARY_FALSE(0);
CHECK_UNARY_FALSE(0);
REQUIRE_UNARY_FALSE(0);
}
static void someAssertsInFunction() {
int a = 5;
int b = 5;
CHECK(a == b);
CHECK_FALSE(a != b);
CHECK_THROWS(throw_if(true, 0));
CHECK_THROWS_AS(throw_if(true, 0), int);
CHECK_THROWS_WITH(throw_if(true, false), "unknown exception");
CHECK_THROWS_WITH_AS(throw_if(true, false), "unknown exception", int);
CHECK_NOTHROW(throw_if(false, 0));
CHECK_EQ(a, b);
CHECK_UNARY(a == b);
CHECK_UNARY_FALSE(a != b);
}
TEST_CASE("some asserts used in a function called by a test case") {
someAssertsInFunction();
}
// TODO: Remove NOLINT (if (false && (__VA_ARGS__));)?
inline DOCTEST_NOINLINE void comp(int a, int b) { // NOLINT(misc-unused-parameters)
if (CHECK(a == b)) { MESSAGE(":D"); }
if (CHECK_FALSE(a != b)) { MESSAGE(":D"); }
if (CHECK_EQ(a, b)) { MESSAGE(":D"); }
if (CHECK_UNARY(a == b)) { MESSAGE(":D"); }
if (CHECK_UNARY_FALSE(a != b)) { MESSAGE(":D"); }
}
DOCTEST_MSVC_SUPPRESS_WARNING_WITH_PUSH(4702)
TEST_CASE("check return values") {
comp(0, 0);
if (CHECK_THROWS(throw_if(true, true))) { MESSAGE(":D"); }
if (CHECK_THROWS_AS(throw_if(true, 2), int)) { MESSAGE(":D"); }
if (CHECK_NOTHROW(throw_if(false, 2))) { MESSAGE(":D"); }
if (CHECK_THROWS_WITH(throw_if(true, 2), "2")) { MESSAGE(":D"); }
}
TEST_CASE("check return values no print") {
comp(4, 2);
if (CHECK_THROWS(throw_if(false, false))) { MESSAGE(":D"); }
if (CHECK_THROWS_AS(throw_if(true, 2), doctest::Approx)) { MESSAGE(":D"); }
if (CHECK_NOTHROW(throw_if(true, 2))) { MESSAGE(":D"); }
if (CHECK_THROWS_WITH(throw_if(true, 2), "1")) { MESSAGE(":D"); }
}
DOCTEST_MSVC_SUPPRESS_WARNING_POP