fixes OpenZeppelin#706

Author: Aniket-Engg

contracts/token/ERC20/IERC20.sol

@@ -17,11 +17,7 @@ interface IERC20 {
 
     function transferFrom(address from, address to, uint256 value) external returns (bool);
 
-  event Transfer(
-    address indexed from,
-    address indexed to,
-    uint256 value
-  );
+    event Transfer(address indexed from, address indexed to, uint256 value);
 
     event Approval(address indexed owner, address indexed spender, uint256 value);
-}
+}

package-lock.json

@@ -22,18 +22,10 @@ contract('SafeERC20', function () {
       await shouldFail.reverting(this.helper.doFailingApprove());
     });
 
-    it('should throw on failed increaseAllowance', async function () {
+    it('reverts on increaseAllowance', async function () {
       await shouldFail.reverting(this.helper.doFailingIncreaseAllowance());
     });
 
-    it('should throw on failed decreaseAllowance', async function () {
-      await shouldFail.reverting(this.helper.doFailingDecreaseAllowance());
-    });
-
-    it('should not throw on succeeding transfer', async function () {
-      await this.helper.doSucceedingTransfer();
-    });
-
     it('reverts on decreaseAllowance', async function () {
       await shouldFail.reverting(this.helper.doFailingDecreaseAllowance());
     });
@@ -98,4 +90,4 @@ contract('SafeERC20', function () {
       });
     });
   });
-});
+});