Add test with asserts

Author: Smit-create

integration_tests/test_unsigned_02.py

@@ -1,10 +1,15 @@
-from lpython import u16, i32
+from lpython import u16, i32, u8, u32, u64
 
 # test issue 2170
 
-i : i32
-u : u16 = u16(32768)
-x : i32
+u_1 : u16 = u16(32768)
+u_2 : u8 = u8(24)
+u_3 : u32 = u32(32768)
+u_4 : u64 = u64(32768)
 
-for i in range(i32(u)):
-    x = i * 2
+assert u_1 == u16(32768)
+assert u_2 == u8(24)
+assert u_3 == u32(32768)
+assert u_4 == u64(32768)
+
+print(u_1, u_2, u_3, u_4)