test: add tests for .then on the prototype (#35)

then · Apr 26, 2020 · e5e834a · e5e834a
1 parent 19c6d89
commit e5e834a
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/test.js b/test.js
@@ -1,6 +1,11 @@
 var assert = require('assert');
 var isPromise = require('./');
 
+// `.then` methods on primative types should
+// not make them count as promises
+String.prototype.then = () => {};
+Number.prototype.then = () => {};
+Boolean.prototype.then = () => {};
 
 assert(isPromise(null) === false);
 assert(isPromise(undefined) === false);