add tests

Author: Qelxiros

coretests/tests/lib.rs

@@ -30,6 +30,7 @@
 #![feature(duration_constructors)]
 #![feature(duration_constructors_lite)]
 #![feature(error_generic_member_access)]
+#![feature(exact_div)]
 #![feature(exact_size_is_empty)]
 #![feature(extend_one)]
 #![feature(extern_types)]

coretests/tests/num/int_macros.rs

@@ -683,5 +683,29 @@ macro_rules! int_module {
                 assert_eq_const_safe!($T: <$T>::unbounded_shr(17, SHIFT_AMOUNT_OVERFLOW3), 0);
             }
         }
+
+        const EXACT_DIV_SUCCESS_DIVIDEND1: $T = 42;
+        const EXACT_DIV_SUCCESS_DIVISOR1: $T = 6;
+        const EXACT_DIV_SUCCESS_QUOTIENT1: $T = 7;
+        const EXACT_DIV_SUCCESS_DIVIDEND2: $T = 18;
+        const EXACT_DIV_SUCCESS_DIVISOR2: $T = 3;
+        const EXACT_DIV_SUCCESS_QUOTIENT2: $T = 6;
+
+        test_runtime_and_compiletime! {
+            fn test_exact_div() {
+                // 42 / 6
+                assert_eq_const_safe!(Option<$T>: <$T>::checked_exact_div(EXACT_DIV_SUCCESS_DIVIDEND1, EXACT_DIV_SUCCESS_DIVISOR1), Some(EXACT_DIV_SUCCESS_QUOTIENT1));
+                assert_eq_const_safe!($T: <$T>::exact_div(EXACT_DIV_SUCCESS_DIVIDEND1, EXACT_DIV_SUCCESS_DIVISOR1), EXACT_DIV_SUCCESS_QUOTIENT1);
+
+                // 18 / 3
+                assert_eq_const_safe!(Option<$T>: <$T>::checked_exact_div(EXACT_DIV_SUCCESS_DIVIDEND2, EXACT_DIV_SUCCESS_DIVISOR2), Some(EXACT_DIV_SUCCESS_QUOTIENT2));
+                assert_eq_const_safe!($T: <$T>::exact_div(EXACT_DIV_SUCCESS_DIVIDEND2, EXACT_DIV_SUCCESS_DIVISOR2), EXACT_DIV_SUCCESS_QUOTIENT2);
+
+                // failures
+                assert_eq_const_safe!(Option<$T>: <$T>::checked_exact_div(1, 2), None);
+                assert_eq_const_safe!(Option<$T>: <$T>::checked_exact_div(<$T>::MIN, -1), None);
+                assert_eq_const_safe!(Option<$T>: <$T>::checked_exact_div(0, 0), None);
+            }
+        }
     };
 }

coretests/tests/num/uint_macros.rs

@@ -516,5 +516,28 @@ macro_rules! uint_module {
                 assert_eq_const_safe!($T: <$T>::unbounded_shr(17, SHIFT_AMOUNT_OVERFLOW3), 0);
             }
         }
+
+        const EXACT_DIV_SUCCESS_DIVIDEND1: $T = 42;
+        const EXACT_DIV_SUCCESS_DIVISOR1: $T = 6;
+        const EXACT_DIV_SUCCESS_QUOTIENT1: $T = 7;
+        const EXACT_DIV_SUCCESS_DIVIDEND2: $T = 18;
+        const EXACT_DIV_SUCCESS_DIVISOR2: $T = 3;
+        const EXACT_DIV_SUCCESS_QUOTIENT2: $T = 6;
+
+        test_runtime_and_compiletime! {
+            fn test_exact_div() {
+                // 42 / 6
+                assert_eq_const_safe!(Option<$T>: <$T>::checked_exact_div(EXACT_DIV_SUCCESS_DIVIDEND1, EXACT_DIV_SUCCESS_DIVISOR1), Some(EXACT_DIV_SUCCESS_QUOTIENT1));
+                assert_eq_const_safe!($T: <$T>::exact_div(EXACT_DIV_SUCCESS_DIVIDEND1, EXACT_DIV_SUCCESS_DIVISOR1), EXACT_DIV_SUCCESS_QUOTIENT1);
+
+                // 18 / 3
+                assert_eq_const_safe!(Option<$T>: <$T>::checked_exact_div(EXACT_DIV_SUCCESS_DIVIDEND2, EXACT_DIV_SUCCESS_DIVISOR2), Some(EXACT_DIV_SUCCESS_QUOTIENT2));
+                assert_eq_const_safe!($T: <$T>::exact_div(EXACT_DIV_SUCCESS_DIVIDEND2, EXACT_DIV_SUCCESS_DIVISOR2), EXACT_DIV_SUCCESS_QUOTIENT2);
+
+                // failures
+                assert_eq_const_safe!(Option<$T>: <$T>::checked_exact_div(1, 2), None);
+                assert_eq_const_safe!(Option<$T>: <$T>::checked_exact_div(0, 0), None);
+            }
+        }
     };
 }