Added Test-Case divide by zero

test/main.test.cpp

@@ -32,6 +32,7 @@ TEST_CASE("divide-function work as designed", "[mathemathic-operations]") {
 	REQUIRE(divide(10,5) == 2);
 	REQUIRE(divide(-2,1) == -2);
 	REQUIRE(divide(6,-2) == -3);
+	REQUIRE_THROWS_AS( divide(2,0), std::invalid_argument );
 }
 
 TEST_CASE("Evaluate Function for basic Functionality","[evaluate]") {