dynamic_extensions_test.dart
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import 'package:flutter_test/flutter_test.dart';
import 'package:get/utils.dart';
class TestClass {
final name = "John";
}
class EmptyClass {}
void main() {
group('dynamic extensions', () {
test('var.isNullOrBlank on a string ', () {
var string = '';
expect('foo'.isNullOrBlank, equals(false));
expect(string.isNullOrBlank, equals(true));
});
test('var.isNullOrBlank on a int ', () {
expect(5.isNullOrBlank, equals(false));
expect(0.isNullOrBlank, equals(false));
});
test('var.isNullOrBlank on a double ', () {
expect(5.0.isNullOrBlank, equals(false));
expect(0.0.isNullOrBlank, equals(false));
});
test('var.isNullOrBlank on a list ', () {
var list = ['foo'];
expect([].isNullOrBlank, equals(true));
expect(['oi', 'foo'].isNullOrBlank, equals(false));
expect([{}, {}].isNullOrBlank, equals(false));
expect(list[0].isNullOrBlank, equals(false));
});
test('var.isNullOrBlank on a set ', () {
var halogens = {'fluorine', 'chlorine', 'bromine', 'iodine', 'astatine'};
expect(<String>{}.isNullOrBlank, equals(true));
expect({'foo', 'bar'}.isNullOrBlank, equals(false));
expect(halogens.isNullOrBlank, equals(false));
});
test('var.isNullOrBlank on a map ', () {
var map = {"foo": 'bar', "one": "um"};
expect({}.isNullOrBlank, equals(true));
expect({"other": "thing"}.isNullOrBlank, equals(false));
expect({'first': [], 'second': []}.isNullOrBlank, equals(false));
expect(map["foo"].isNullOrBlank, equals(false));
expect(map["other"].isNullOrBlank, equals(true));
});
test('var.isNullOrBlank on a function ', () {
someFunction({String string, int integer}) {
expect(string.isNullOrBlank, equals(false));
expect(integer.isNullOrBlank, equals(true));
}
someFunction(string: 'some value');
});
test('var.isNullOrBlank on a class ', () {
TestClass testClass;
expect(TestClass().isNullOrBlank, equals(false));
expect(testClass.isNullOrBlank, equals(true));
expect(EmptyClass().isNullOrBlank, equals(false));
});
});
}