Use this

package.json

@@ -34,6 +34,7 @@
     "eslint-config-xo-lukechilds": "^1.0.0",
     "got": "^8.3.0",
     "nyc": "^11.0.2",
+    "this": "^1.0.2",
     "write-json-file": "^2.3.0",
     "xo": "^0.20.3"
   }

test/index.js

@@ -1,5 +1,5 @@
 import test from 'ava';
-import coins from '../';
+import coins from 'this';
 
 test('coins is an array', t => {
 	t.true(Array.isArray(coins));