[add] more bad tests

.gitignore

@@ -6,4 +6,5 @@ parser
 *.o
 lexer.cpp
 *.out
-**./outputs/
+tests/outputs/
+build/

tests/inputs/invalid/syntax/undefined_routine.crbc

@@ -0,0 +1,20 @@
+routine div (x : real, y : real) : integer is 
+
+    var z : real;
+    z := x / y;
+
+    return z;
+end
+
+routine main () : integer is 
+
+    var x : real is divide( 4.4 , 2.2 );
+
+    if x > 1.1 then
+        print(1);
+    else
+        print(0);
+    end
+
+    return 0;
+end

tests/inputs/invalid/syntax/undefined_var.crbc

@@ -0,0 +1,20 @@
+routine div (x : real, y : real) is 
+
+    var z : real;
+    z := x / b;
+
+    return z;
+end
+
+routine main () : integer is 
+
+    var x : real is div( 4.4 , 2.2 );
+
+    if x > 1.1 then
+        print(1);
+    else
+        print(0);
+    end
+
+    return 0;
+end

tests/inputs/invalid/types/bad_routines/bad_return.crbc

@@ -1,4 +1,4 @@
-routine div (x : real, y : real) is 
+routine div (x : real, y : real) : integer is 
 
     var z : real;
     z := x / y;