equalsIgnoringWhitespace method

void equalsIgnoringWhitespace(String expected)

Expects that the String contains the same content as expected, ignoring differences in whitsepace.

All runs of whitespace characters are collapsed to a single space, and leading and traiilng whitespace are removed before comparison.

For example the following will succeed:

check(' hello   world ').equalsIgnoringWhitespace('hello world');

While the following will fail:

check('helloworld').equalsIgnoringWhitespace('hello world');
check('he llo world').equalsIgnoringWhitespace('hello world');

Implementation

void equalsIgnoringWhitespace(String expected) {
  context.expect(
      () => prefixFirst('equals ignoring whitespace ', literal(expected)),
      (actual) {
    final collapsedActual = _collapseWhitespace(actual);
    final collapsedExpected = _collapseWhitespace(expected);
    return _findDifference(collapsedActual, collapsedExpected,
        collapsedActual, collapsedExpected);
  });
}