From 239a182404e80cf6f692a8c57f230952e98bdeee Mon Sep 17 00:00:00 2001
From: Jonathan Rainville <rainville.jonathan@gmail.com>
Date: Fri, 29 Jun 2018 10:29:07 -0400
Subject: [PATCH] display gas cost of each test

---
 lib/tests/reporter.js |  4 ++++
 lib/tests/test.js     | 12 ++++++++++++
 2 files changed, 16 insertions(+)

diff --git a/lib/tests/reporter.js b/lib/tests/reporter.js
index de20b469..db515061 100644
--- a/lib/tests/reporter.js
+++ b/lib/tests/reporter.js
@@ -26,6 +26,10 @@ class EmbarkSpec extends Base {
 
       console.log(fmt, receipt.className, receipt.gasUsed);
     }
+    function onBlockHeader(blockHeader) {
+      self.stats.totalGasCost += blockHeader.gasUsed;
+      self.stats.test.gasUsed += blockHeader.gasUsed;
+    }
 
     function onBlockHeader(blockHeader) {
       if(!self.listenForGas) {
diff --git a/lib/tests/test.js b/lib/tests/test.js
index 72cdcd71..12bebd71 100644
--- a/lib/tests/test.js
+++ b/lib/tests/test.js
@@ -140,6 +140,18 @@ class Test {
     callback();
   }
 
+  subscribeToPendingTransactions() {
+    const self = this;
+    if (self.logsSubscription) {
+      self.logsSubscription.unsubscribe();
+    }
+    self.logsSubscription = self.web3.eth
+      .subscribe('newBlockHeaders')
+      .on("data", function (blockHeader) {
+        self.engine.events.emit('block:header', blockHeader);
+      });
+  }
+
   initDeployServices() {
     this.engine.startService("web3", {
       web3: this.web3