test: cover missing filter arg in obj-filter (#1467)

yargs · Oct 29, 2019 · 10f10ee · 10f10ee
1 parent cb0396f
commit 10f10ee
Showing 1 changed file with 16 additions and 0 deletions.
diff --git a/test/obj-filter.js b/test/obj-filter.js
@@ -0,0 +1,16 @@
+'use strict'
+/* global describe, it */
+
+const objFilter = require('../lib/obj-filter')
+
+require('chai').should()
+
+describe('ObjFilter', () => {
+  it('returns a new reference to the original object if no filter function is given', () => {
+    const original = { foo: 'bar', baz: 'foo' }
+    const result = objFilter(original)
+
+    original.should.not.equal(result)
+    original.should.deep.equal(result)
+  })
+})