Merge pull request #557 from ethereum/fixRemixTest_Event

Handle array of events

libs/remix-tests/src/testRunner.ts

@@ -286,7 +286,9 @@ export function runTest (testName: string, testObject: any, contractDetails: Com
                     const assertionEventHashes = assertionEvents.map(e => Web3.utils.sha3(e.name + '(' + e.params.join() + ')') )
                     let testPassed = false
                     for (const i in receipt.events) {
-                        const event = receipt.events[i]
+                        let events = receipt.events[i]
+                        if (!Array.isArray(events)) events = [events]
+                        for (const event of events) {
                             const eIndex = assertionEventHashes.indexOf(event.raw.topics[0]) // event name topic will always be at index 0
                             if (eIndex >= 0) {
                                 const testEvent = web3.eth.abi.decodeParameters(assertionEvents[eIndex].params, event.raw.data)
@@ -317,6 +319,7 @@ export function runTest (testName: string, testObject: any, contractDetails: Com
                                 testPassed = true
                             }
                         }
+                    }
 
                     if (testPassed) {
                         const resp: TestResultInterface = {

libs/remix-tests/tests/examples_1/simple_storage.sol

@@ -2,12 +2,16 @@ pragma solidity >= 0.5.0 < 0.8.0;
 contract SimpleStorage {
   uint public storedData;
 
+  event Stored(uint256 value);
+
   constructor() public {
     storedData = 100;
   }
 
   function set(uint x) public {
     storedData = x;
+    emit Stored(x);
+    emit Stored(x+10); // for testing multiple events only
   }
 
   function get() public view returns (uint retVal) {