Merge branch 'master' into 'master'

basic calculus tests

See merge request jg943598/rpn_collab!4

test/test.cpp

@@ -7,6 +7,26 @@ TEST_CASE( "some example calculations", "[calc]") {
   REQUIRE( evaluate("12+2-3*") == 3 );
 }
 
+TEST_CASE( "basic addition", "[calc]"){
+  REQUIRE( evaluate("55+") == 10); 
+  REQUIRE( evaluate("34+") == 7);
+}
+
+TEST_CASE( "basic subtraction", "[calc]"){
+  REQUIRE( evaluate("55-") == 0); 
+  REQUIRE( evaluate("83-") == 5);
+}
+
+TEST_CASE( "basic multiplication", "[calc]"){
+  REQUIRE( evaluate("55*") == 25); 
+  REQUIRE( evaluate("36*") == 18);
+}
+
+TEST_CASE( "basic division", "[calc]"){
+  REQUIRE( evaluate("55/") == 1); 
+  REQUIRE( evaluate("93/") == 3);
+}
+
 TEST_CASE( "Test modulo function", "[calc]") {
   REQUIRE( evaluate("11%") == 0 );
   REQUIRE( evaluate("32%") == 1 );