notPropEqual.md

layout	page-api
title	assert.notPropEqual()
excerpt	Compare an object's own properties for inequality.
groups	assert
redirect_from	/assert/notPropEqual/ /notPropEqual/
version_added	1.11.0

notPropEqual( actual, expected, message = "" )

Compare an object's own properties using a strict inequality comparison.

name	description
actual	Expression being tested
expected	Known comparison value
message (string)	Short description

The notPropEqual assertion compares only an object's own properties, using the strict inequality operator (!==).

The test passes if there are properties with different values, or extra properties, or missing properties.

See also

• Use assert.notPropContains() to only check for the absence or inequality of some properties.
• Use assert.propEqual() to test for equality of properties instead.

Examples

Compare the values of two objects properties.

QUnit.test('example', assert => {
  class Foo {
    constructor () {
      this.x = '1';
      this.y = 2;
    }

    walk () {}
    run () {}
  }

  const foo = new Foo();

  // succeeds, only own property values are compared (using strict equality),
  // and property "x" is indeed not equal (string instead of number).
  assert.notPropEqual(foo, {
    x: 1,
    y: 2
  });
});