OverReact Test

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A library for testing OverReact components.

Using it in your project

  1. Import it into your test files:

     import 'package:over_react_test/over_react_test.dart';
  2. Run your tests:

     $ dart run test test/your_test_file.dart

Naming Conventions

Variables and Types

UsageActual TypeSuggested Referencing
render and render helper functionsReactComponent | Elementinstance
Component classReactClasstype
VDOM Instance (invoked UiProps)ReactElement-ReactElement or not suffixed
findDomNode, queryByTestId, etc.Elementnode
The Dart componentreact.Component (backed by ReactComponent)dartInstance
Invoked UiFactoryUiPropsbuilder


test('my test' () {
  var sampleBuilder = Sample();
  var sampleReactElement = sampleBuilder(); // Or var sample = sampleBuilder();
  var instance = render(sampleInstance);
  SampleComponent sampleDartInstance = getDartComponent(instance);
  var sampleNode = findDomNode(instance);

Test IDs

When coming up with test ID strings:

  • DO NOT use spaces; space-delimited strings will be treated as separate test IDs

    Just like CSS class names, you can use multiple test IDs together, and use any one of them to target a given component/node.

  • PREFER following our naming scheme for consistency across projects:


    We recommend including a library abbreviation and component name within a test ID so that it's easy to track down where that ID came from.

    Namespacing (.<subpart>) can be added however it makes sense.

    Finally, test IDs should be descriptive and useful in the context of tests.


    • wsd.DatepickerPrimitive.goToSelectedButton
    • sox.AbstractDataLayoutGroup.headerBlock.title
  • CONSIDER adding multiple IDs to serve different purposes

    for (var i = 0; i < items.length; i++) {
      // ...
      // ...

    With the output of above code, you can:

    • target all of the Bar component's menu items using foo.Bar.menuItem
    • target the 4th item using foo.Bar.menuItem.3
    • target the item corresponding to an item with id baz123 using foo.Bar.menuItem.baz123

    This won't always be needed, but it comes in handy in certain cases.


You would never skip reading the docs for a new language you are asked to learn, so please don't skip over reading our API documentation either.


Yes please! (Please read our contributor guidelines first)


The over_react_test library adheres to Semantic Versioning:

  • Any API changes that are not backwards compatible will bump the major version (and reset the minor / patch).
  • Any new functionality that is added in a backwards-compatible manner will bump the minor version (and reset the patch).
  • Any backwards-compatible bug fixes that are added will bump the patch version.