From 1925ada995f5bc20e4647289e2ec608529a12670 Mon Sep 17 00:00:00 2001
From: Do Trung Kien <trungkien.keio@gmail.com>
Date: Wed, 26 Jun 2019 18:13:58 +0700
Subject: [PATCH] improve expectRevert output

---
 src/expectRevert.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/expectRevert.js b/src/expectRevert.js
index b1bd9ce..7325de9 100644
--- a/src/expectRevert.js
+++ b/src/expectRevert.js
@@ -8,7 +8,8 @@ async function expectException (promise, expectedError) {
     await promise;
   } catch (error) {
     if (error.message.indexOf(expectedError) === -1) {
-      throw Error(`Wrong failure type, expected '${expectedError}' and got '${error.message}'`);
+      const actualError = error.message.replace('Returned error: VM Exception while processing transaction: ', '');
+      assert.fail(`Wrong failure type, expected '${expectedError}' and got '${actualError}'`);
     }
     return;
   }