From 658dba4ebbf8062e49965a77fb7df3f79a20c193 Mon Sep 17 00:00:00 2001
From: Jeff Principe <jepri@microsoft.com>
Date: Mon, 4 Sep 2017 17:27:10 -0700
Subject: [PATCH] fix: remove excluded files from coverage before writing
 (#649)

---
 index.js | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/index.js b/index.js
index 0933fa15f..f9b38c5e9 100755
--- a/index.js
+++ b/index.js
@@ -367,6 +367,13 @@ NYC.prototype.writeCoverageFile = function () {
   var coverage = coverageFinder()
   if (!coverage) return
 
+  // Remove any files that should be excluded but snuck into the coverage
+  Object.keys(coverage).forEach(function (absFile) {
+    if (!this.exclude.shouldInstrument(absFile)) {
+      delete coverage[absFile]
+    }
+  }, this)
+
   if (this.cache) {
     Object.keys(coverage).forEach(function (absFile) {
       if (this.hashCache[absFile] && coverage[absFile]) {