getAllByPlaceholderText<E extends Element> function
ByPlaceholderText
Queries
- Node container,
- dynamic text, {
- bool exact = true,
- NormalizerFn normalizer([])?,
Returns a list of elements with the given text
as the value of the placeholder
attribute,
defaulting to an exact
match.
Throws if no elements are found within the provided container
.
Use queryAllByPlaceholderText if a RTE is not expected.
Prefer using ByLabelText
queries
for form elements when possible in order to query for elements in a way that
most reflects how the user would interact with them.
Related: getByPlaceholderText
Example
The examples below demonstrate the usage of the
getByDisplayValue
query. However, the example is also relevant forgetAllByPlaceholderText
,queryByPlaceholderText
,queryAllByPlaceholderText
,findByPlaceholderText
andfindAllByPlaceholderText
.Read more about the different types of queries to gain more clarity on which one suits your use-cases best.
<input type="text" placeholder="Username" />
import 'package:react/react.dart' as react;
import 'package:react_testing_library/matchers.dart' show isInTheDocument;
import 'package:react_testing_library/react_testing_library.dart' as rtl;
import 'package:test/test.dart';
main() {
test('', () {
// Render the DOM shown in the example snippet above
final view = rtl.render(
react.input({
'type': 'text',
'placeholder': 'Username',
}),
);
expect(view.getByPlaceholderText('Username'), isInTheDocument);
});
}
NOTE:
render()
supports React vDom elements / custom components created using either the
react or over_react packages.
The examples shown here use the
react
package since thereact_testing_library
does not have a direct dependency onover_react
- but both libraries are fully supported.
Options
text
This argument can be set to a String
, RegExp
, or a Function
which returns true
for a match and false
for a mismatch.
See the JS TextMatch
docs for more details
and examples.
exact
Defaults to true
; matches full strings, case-sensitive. When false
, matches substrings and is
not case-sensitive. It has no effect on regex or function arguments. In most cases using a regex
instead of a string gives you more control over fuzzy matching and should be preferred over exact: false
.
normalizer
An optional function which overrides normalization behavior.
Before running any matching logic against text in the DOM, DOM Testing Library automatically normalizes that text. By default, normalization consists of trimming whitespace from the start and end of text, and collapsing multiple adjacent whitespace characters into a single space.
If you want to prevent that normalization, or provide alternative normalization
(e.g. to remove Unicode control characters), you can provide a normalizer
function.
This function will be given a string and is expected to return a normalized version of that string.
NOTE: Specifying a value for
normalizer
replaces the built-in normalization, but you can call getDefaultNormalizer to obtain a built-in normalizer, either to adjust that normalization or to call it from your own normalizer.
See the JS TextMatch
precision and
JS TextMatch
normalization docs
for more details and examples.
Implementation
List<E> getAllByPlaceholderText<E extends Element>(
Node container,
/*TextMatch*/ dynamic text, {
bool exact = true,
NormalizerFn Function([NormalizerOptions?])? normalizer,
}) =>
within(container).getAllByPlaceholderText<E>(text, exact: exact, normalizer: normalizer);