git diff from Operator.t.sol

2022-08-olympus-operator.t.sol.patch

diff --git a/src/test/policies/Operator.t.sol b/src/test/policies/Operator.poc.sol
index e09aec1..5cbd382 100644
--- a/src/test/policies/Operator.t.sol
+++ b/src/test/policies/Operator.poc.sol
@@ -458,6 +458,32 @@ contract OperatorTest is Test {
     /// [X] Cushion doesn't deploy when wall is down
     /// [X] Bond purchases update capacity
 
+    function test_poc__lowCushionDeployWithWallspread10000Reverts() public {
+        /// Initialize operator
+        vm.prank(guardian);
+        operator.initialize();
+
+        /// if the wallspread is 10000 the operate might revert
+        vm.prank(policy);
+        operator.setSpreads(7000, 10000);
+
+        /// Confirm that the cushion is not deployed
+        assertTrue(!auctioneer.isLive(range.market(true)));
+
+        /// Set price on mock oracle into the lower cushion
+        /// given the lower wallspread is 10000
+        /// when the lower market should be deployed the operate reverts
+        price.setLastPrice(20 * 1e18);
+
+        /// Trigger the operate function manually
+        /// The operate will revert Error with "Division or modulo by 0"
+        /// But I could not figure out to catch with `expectRevert`
+        /// so just commenting out the assert
+        // vm.prank(guardian);
+        // /// vm.expectRevert(bytes("Division or module by 0"));   // this cannot catch the revert...
+        // operator.operate();
+    }
+
     function testCorrectness_highCushionDeployedInSpread() public {
         /// Initialize operator
         vm.prank(guardian);