Fix subtraction tests

test/main.test.cpp

@@ -41,10 +41,9 @@ TEST_CASE("subtract-function work as designed","[mathemathic-operations]") {
 
 	// Subtract from int min
 	REQUIRE(subtract(0, std::numeric_limits<int>::min()) == std::numeric_limits<int>::min());
-	REQUIRE(subtract(std::numeric_limits<int>::min(), 0) == std::numeric_limits<int>::min());
+	REQUIRE(subtract(std::numeric_limits<int>::min(), std::numeric_limits<int>::min()) == 0);
 	REQUIRE_THROWS_AS(subtract(1, std::numeric_limits<int>::min()), std::invalid_argument);
 	REQUIRE_THROWS_AS(subtract(2, std::numeric_limits<int>::min()), std::invalid_argument);
-	REQUIRE_THROWS_AS(subtract(std::numeric_limits<int>::min(), std::numeric_limits<int>::min()), std::invalid_argument);
 }
 
 TEST_CASE("multiply-function work as designed","[mathemathic-operations]") {