From b3ebca5dcbd87c2b28ee16f6a84a02704f4b8890 Mon Sep 17 00:00:00 2001
From: Edward Jones <throne3d@gmail.com>
Date: Mon, 16 Mar 2020 21:59:10 -0300
Subject: [PATCH] Use istanbul babel plugin only in tests (#536)

Prevents coverage instrumentation code from being
in the final package.

Fixes #535.
---
 .babelrc          | 10 ++++++---
 package-lock.json | 52 +++++++++++++++++++++++++++++++++++++++++++++++
 package.json      |  3 ++-
 3 files changed, 61 insertions(+), 4 deletions(-)

diff --git a/.babelrc b/.babelrc
index efc403d6..9af382fd 100644
--- a/.babelrc
+++ b/.babelrc
@@ -9,7 +9,11 @@
       }
     ]
   ],
-  "plugins": [
-    "istanbul"
-  ]
+  "env": {
+    "test": {
+      "plugins": [
+        "istanbul"
+      ]
+    }
+  }
 }
diff --git a/package-lock.json b/package-lock.json
index d42e252c..6a15b3bf 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -3623,6 +3623,58 @@
         }
       }
     },
+    "cross-env": {
+      "version": "6.0.3",
+      "resolved": "https://registry.npmjs.org/cross-env/-/cross-env-6.0.3.tgz",
+      "integrity": "sha512-+KqxF6LCvfhWvADcDPqo64yVIB31gv/jQulX2NGzKS/g3GEVz6/pt4wjHFtFWsHMddebWD/sDthJemzM4MaAag==",
+      "dev": true,
+      "requires": {
+        "cross-spawn": "^7.0.0"
+      },
+      "dependencies": {
+        "cross-spawn": {
+          "version": "7.0.1",
+          "resolved": "https://registry.npmjs.org/cross-spawn/-/cross-spawn-7.0.1.tgz",
+          "integrity": "sha512-u7v4o84SwFpD32Z8IIcPZ6z1/ie24O6RU3RbtL5Y316l3KuHVPx9ItBgWQ6VlfAFnRnTtMUrsQ9MUUTuEZjogg==",
+          "dev": true,
+          "requires": {
+            "path-key": "^3.1.0",
+            "shebang-command": "^2.0.0",
+            "which": "^2.0.1"
+          }
+        },
+        "path-key": {
+          "version": "3.1.1",
+          "resolved": "https://registry.npmjs.org/path-key/-/path-key-3.1.1.tgz",
+          "integrity": "sha512-ojmeN0qd+y0jszEtoY48r0Peq5dwMEkIlCOu6Q5f41lfkswXuKtYrhgoTpLnyIcHm24Uhqx+5Tqm2InSwLhE6Q==",
+          "dev": true
+        },
+        "shebang-command": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/shebang-command/-/shebang-command-2.0.0.tgz",
+          "integrity": "sha512-kHxr2zZpYtdmrN1qDjrrX/Z1rR1kG8Dx+gkpK1G4eXmvXswmcE1hTWBWYUzlraYw1/yZp6YuDY77YtvbN0dmDA==",
+          "dev": true,
+          "requires": {
+            "shebang-regex": "^3.0.0"
+          }
+        },
+        "shebang-regex": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/shebang-regex/-/shebang-regex-3.0.0.tgz",
+          "integrity": "sha512-7++dFhtcx3353uBaq8DDR4NuxBetBzC7ZQOhmTQInHEd6bSrXdiEyzCvG07Z44UYdLShWUyXt5M/yhz8ekcb1A==",
+          "dev": true
+        },
+        "which": {
+          "version": "2.0.2",
+          "resolved": "https://registry.npmjs.org/which/-/which-2.0.2.tgz",
+          "integrity": "sha512-BLI3Tl1TW3Pvl70l3yq3Y64i+awpwXqsGBYWkkqMtnbXgrMD+yj7rhW0kuEDxzJaYXGjEW5ogapKNMEKNMjibA==",
+          "dev": true,
+          "requires": {
+            "isexe": "^2.0.0"
+          }
+        }
+      }
+    },
     "cross-spawn": {
       "version": "6.0.5",
       "resolved": "https://registry.npmjs.org/cross-spawn/-/cross-spawn-6.0.5.tgz",
diff --git a/package.json b/package.json
index 46e246fc..36c52cbf 100644
--- a/package.json
+++ b/package.json
@@ -27,7 +27,7 @@
     "build": "babel lib --out-dir dist",
     "prepare": "npm run build",
     "lint": "eslint . --ignore-path .gitignore",
-    "coverage": "nyc --require @babel/register mocha -- 'test/*.test.js'",
+    "coverage": "cross-env NODE_ENV=test nyc --require @babel/register mocha -- 'test/*.test.js'",
     "report": "nyc report --reporter=text-lcov | coveralls",
     "test": "npm run lint && npm run coverage"
   },
@@ -57,6 +57,7 @@
     "babel-plugin-istanbul": "^5.2.0",
     "chai": "^4.2.0",
     "coveralls": "^3.0.9",
+    "cross-env": "^6.0.3",
     "eslint": "^6.7.2",
     "eslint-config-airbnb-base": "^14.0.0",
     "eslint-plugin-import": "^2.19.1",