Upgrade Mocha to ^7.1.1

index.js

@@ -8,6 +8,7 @@ const Config = require("./lib/config");
 const TransactionWatcher = require("./lib/transactionWatcher");
 const GasTable = require("./lib/gasTable");
 const SyncRequest = require("./lib/syncRequest");
+const mochaStats = require("./lib/mochaStats");
 
 /**
  * Based on the Mocha 'Spec' reporter. Watches an Ethereum test suite run
@@ -22,7 +23,14 @@ const SyncRequest = require("./lib/syncRequest");
  */
 function Gas(runner, options) {
   // Spec reporter
-  Base.call(this, runner);
+  Base.call(this, runner, options);
+
+  // Initialize stats for Mocha 6+ epilogue
+  if (!runner.stats) {
+    mochaStats(runner);
+    this.stats = runner.stats;
+  }
+
   const self = this;
 
   let indents = 0;

lib/mochaStats.js

@@ -0,0 +1,37 @@
+/**
+ * This file adapted from mocha's stats-collector
+ * https://github.com/mochajs/mocha/blob/54475eb4ca35a2c9044a1b8c59a60f09c73e6c01/lib/stats-collector.js#L1-L83
+ */
+const Date = global.Date;
+
+/**
+ * Provides stats such as test duration, number of tests passed / failed etc., by
+ * listening for events emitted by `runner`.
+ */
+function mochaStatsCollector(runner) {
+  const stats = {
+    suites: 0,
+    tests: 0,
+    passes: 0,
+    pending: 0,
+    failures: 0
+  };
+
+  if (!runner) throw new Error("Missing runner argument");
+
+  runner.stats = stats;
+
+  runner.on("pass", () => stats.passes++);
+  runner.on("fail", () => stats.failures++);
+  runner.on("pending", () => stats.pending++);
+  runner.on("test end", () => stats.tests++);
+
+  runner.once("start", () => (stats.start = new Date()));
+
+  runner.once("end", function() {
+    stats.end = new Date();
+    stats.duration = stats.end - stats.start;
+  });
+}
+
+module.exports = mochaStatsCollector;

mock/package.json

@@ -42,7 +42,7 @@
     "fs-readdir-recursive": "^1.1.0",
     "lodash": "^4.17.14",
     "markdown-table": "^1.1.3",
-    "mocha": "^5.2.0",
+    "mocha": "^7.1.1",
     "req-cwd": "^2.0.0",
     "request": "^2.88.0",
     "request-promise-native": "^1.0.5",