Merge branch 'fix-missing-operands' into 'master'

Fix missing operands

See merge request jg943598/rpn_collab!10

src/calc.cpp

@@ -28,6 +28,9 @@ int pop_stack(auto &stack) {
 }
 
 void change_stack_state(auto &operation, auto &stack) {
+  if (stack.size() < 2) {
+    throw std::out_of_range("The first two digits should be numbers");
+  }
   const auto op_b{pop_stack(stack)};
   const auto op_a{pop_stack(stack)};
   stack.push(operation(op_a, op_b));

src/main.cpp

@@ -19,7 +19,8 @@ int main() {
   } catch (const std::domain_error& e){
     std::cout << "encountered div by zero" << e.what() << "\n";
     return -1;
+  } catch(const std::out_of_range& e){
+    std::cout << "encountered " << e.what() << "\n";
+    return -1;
   }
-
-
 }

test/test.cpp

@@ -52,15 +52,15 @@ TEST_CASE( "Basic power function test", "[calc]") {
 }
 
 TEST_CASE( "Parameters are misaligned and excpetion is thrown", "[calc]") {
-//   REQUIRE_THROWS( evaluate("40*/") );
-//   REQUIRE_THROWS( evaluate("14--") );
-//   REQUIRE_THROWS( evaluate("1+1") );
-//   REQUIRE_THROWS( evaluate("+11") );
+   REQUIRE_THROWS( evaluate("40*/") );
+   REQUIRE_THROWS( evaluate("14--") );
+   REQUIRE_THROWS( evaluate("1+1") );
+   REQUIRE_THROWS( evaluate("+11") );
 }
 
 TEST_CASE( "Two Operants in a row are detected and exception is thrown", "[calc]") {
-  //REQUIRE_THROWS( evaluate("11+3-+4") );
-  //REQUIRE_THROWS( evaluate("11/3*+4") );
+  REQUIRE_THROWS( evaluate("11+3-+4") );
+  REQUIRE_THROWS( evaluate("11/3*+4") );
 }
 
 TEST_CASE( "Unrecognized characters are detected and exception is thrown", "[calc]") {