init

Signed-off-by: T-Hax <>

lib/v3-core/contracts/test/UnsafeMathEchidnaTest.sol

@@ -0,0 +1,17 @@
+// SPDX-License-Identifier: UNLICENSED
+pragma solidity =0.7.6;
+
+import '../libraries/UnsafeMath.sol';
+
+contract UnsafeMathEchidnaTest {
+    function checkDivRoundingUp(uint256 x, uint256 d) external pure {
+        require(d > 0);
+        uint256 z = UnsafeMath.divRoundingUp(x, d);
+        uint256 diff = z - (x / d);
+        if (x % d == 0) {
+            assert(diff == 0);
+        } else {
+            assert(diff == 1);
+        }
+    }
+}