it function
Creates a new test case with the given description (converted to a string) and body. These are like "testWidgets" in flutter_test.
Implementation
@isTest
void it(String description, Future<void> Function(WidgetTester tester) body) {
final widgetDeclarer = _widgetDeclarer;
testWidgets(description, (tester) async {
await widgetDeclarer.runSetUps(tester);
await body(tester);
await widgetDeclarer.runTearDowns(tester);
});
}