expect( amount )

Specify how many assertions are expected to run within a test.

name description
amount Number of assertions in this test.


To ensure that an explicit number of assertions are run within any test, use assert.expect( number ) to register an expected count. If the number of assertions run does not match the expected count, the test will fail.


Establish an expected assertion count

QUnit.test( "a test", function( assert ) {
  assert.expect( 2 );

  function calc( x, operation ) {
    return operation( x );

  var result = calc( 2, function( x ) {
    assert.ok( true, "calc() calls operation function" );
    return x * x;

  assert.equal( result, 4, "2 squared equals 4" );