assert.true()

version added: 2.11.0.

true( actual, message = "" )

A strict comparison that passes if the first argument is boolean true.

name	description
`actual`	Expression being tested
`message` (string)	Short description of the actual expression

true() requires just one argument. If the argument evaluates to true, the assertion passes; otherwise, it fails.

This method is similar to the assertTrue() method found in xUnit-style frameworks.

assert.false() can be used to explicitly test for a false value.

Examples

QUnit.test('example', assert => {
  // success
  assert.true(true, 'boolean true');

  // failure
  assert.true('foo', 'non-empty string');
  assert.true('', 'empty string');
  assert.true(0, 'number zero');
  assert.true(false, 'boolean false');
  assert.true(NaN, 'NaN value');
  assert.true(null, 'null value');
  assert.true(undefined, 'undefined value');
});

Description

Examples