test for transfer events on swap

fyk943749465 · Jan 31, 2020 · 1df07b3 · 1df07b3
1 parent e382d70
commit 1df07b3
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/test/UniswapV2Exchange.spec.ts b/test/UniswapV2Exchange.spec.ts
@@ -99,6 +99,8 @@ describe('UniswapV2Exchange', () => {
     const expectedOutputAmount = bigNumberify('1662497915624478906')
     await token0.transfer(exchange.address, swapAmount)
     await expect(exchange.swap(token0.address, expectedOutputAmount, wallet.address, overrides))
+      .to.emit(token1, 'Transfer')
+      .withArgs(exchange.address, wallet.address, expectedOutputAmount)
       .to.emit(exchange, 'Sync')
       .withArgs(token0Amount.add(swapAmount), token1Amount.sub(expectedOutputAmount))
       .to.emit(exchange, 'Swap')
@@ -124,6 +126,8 @@ describe('UniswapV2Exchange', () => {
     const expectedOutputAmount = bigNumberify('453305446940074565')
     await token1.transfer(exchange.address, swapAmount)
     await expect(exchange.swap(token1.address, expectedOutputAmount, wallet.address, overrides))
+      .to.emit(token0, 'Transfer')
+      .withArgs(exchange.address, wallet.address, expectedOutputAmount)
       .to.emit(exchange, 'Sync')
       .withArgs(token0Amount.sub(expectedOutputAmount), token1Amount.add(swapAmount))
       .to.emit(exchange, 'Swap')