display gas cost of each test

lib/core/events.js

@@ -14,7 +14,7 @@ function log(eventType, eventName) {
   //console.log(eventType, eventName);
 }
 
-EventEmitter.prototype._maxListeners = 300;
+EventEmitter.prototype._maxListeners = 350;
 const _on         = EventEmitter.prototype.on;
 const _setHandler = EventEmitter.prototype.setHandler;
 

lib/tests/reporter.js

@@ -1,4 +1,5 @@
 const Base = require('mocha/lib/reporters/base');
+const ms = require('mocha/lib/ms');
 const color = Base.color;
 
 class EmbarkSpec extends Base {
@@ -11,10 +12,12 @@ class EmbarkSpec extends Base {
     self.gasLimit = options.reporterOptions.gasLimit;
     let indents = 0;
     let n = 0;
-    self.stats.gasCost = 0;
+    self.stats.totalGasCost = 0;
+    self.stats.test = {};
+    self.stats.test.gasUsed = 0;
 
     function onContractReceipt(receipt) {
-      self.stats.gasCost += receipt.gasUsed;
+      self.stats.totalGasCost += receipt.gasUsed;
       if (self.gasDetails) {
         const fmt = color('bright pass', ' ') +
           color('green', ' %s') +
@@ -25,8 +28,13 @@ 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;
+    }
 
     self.embarkEvents.on("deploy:contract:receipt", onContractReceipt);
+    self.embarkEvents.on("block:header", onBlockHeader);
 
     function indent() {
       return Array(indents).join('  ');
@@ -56,31 +64,31 @@ class EmbarkSpec extends Base {
       console.log(fmt, test.title);
     });
 
+
+    runner.on('test', function () {
+      self.stats.test.gasUsed = 0;
+    });
+
     runner.on('pass', function (test) {
-      let fmt;
+      let fmt =
-      if (test.speed === 'fast') {
-        fmt =
-          indent() +
-          color('checkmark', '  ' + Base.symbols.ok) +
-          color('pass', ' %s');
-        console.log(fmt, test.title);
-      } else {
-        fmt =
         indent() +
         color('checkmark', '  ' + Base.symbols.ok) +
         color('pass', ' %s') +
-          color(test.speed, ' (%dms)');
+        color(test.speed, ' (%dms)') +
-        console.log(fmt, test.title, test.duration);
+        ' - ' +
-      }
+        color(self.getGasColor(self.stats.test.gasUsed), '[%d gas]');
+      console.log(fmt, test.title, test.duration, self.stats.test.gasUsed);
     });
 
     runner.on('fail', function (test) {
-      console.log(indent() + color('fail', '  %d) %s'), ++n, test.title);
+      console.log(indent() + color('fail', '  %d) %s') + ' - ' + color(self.getGasColor(self.stats.test.gasUsed), '[%d gas]'),
+        ++n, test.title, self.stats.test.gasUsed);
     });
 
     runner.once('end', function () {
       runner.removeAllListeners();
       self.embarkEvents.removeListener("deploy:contract:receipt", onContractReceipt);
+      self.embarkEvents.removeListener("block:header", onBlockHeader);
       self.epilogue();
     });
   }
@@ -104,11 +112,13 @@ class EmbarkSpec extends Base {
     // passes
     fmt = color('bright pass', ' ') +
       color('green', ' %d passing') +
-      color(this.getGasColor(stats.gasCost), ' (%s gas)');
+      color('light', ' (%s)') +
+      color('light', ' - [Total: %s gas]');
 
     console.log(fmt,
       stats.passes || 0,
-      stats.gasCost);
+      ms(stats.duration),
+      stats.totalGasCost);
 
     // pending
     if (stats.pending) {

lib/tests/test.js

@@ -39,6 +39,7 @@ class Test {
     this.error = false;
     this.builtContracts = {};
     this.compiledContracts = {};
+    this.logsSubscription = null;
 
     this.web3 = new Web3();
   }
@@ -87,9 +88,22 @@ class Test {
       this.sim = getSimulator();
     }
     this.web3.setProvider(this.sim.provider(this.simOptions));
+    this.subscribeToPendingTransactions();
     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