| Index: packages/polymer_expressions/test/eval_test.dart
|
| diff --git a/packages/polymer_expressions/test/eval_test.dart b/packages/polymer_expressions/test/eval_test.dart
|
| deleted file mode 100644
|
| index c2dbdcabedf6bb109fbd0b15948858d2f87e0bf5..0000000000000000000000000000000000000000
|
| --- a/packages/polymer_expressions/test/eval_test.dart
|
| +++ /dev/null
|
| @@ -1,466 +0,0 @@
|
| -// Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file
|
| -// for details. All rights reserved. Use of this source code is governed by a
|
| -// BSD-style license that can be found in the LICENSE file.
|
| -
|
| -library eval_test;
|
| -
|
| -import 'dart:async';
|
| -
|
| -// Import mirrors to cause all mirrors to be retained by dart2js.
|
| -// The tests reflect on LinkedHashMap.length and String.length.
|
| -import 'dart:mirrors';
|
| -
|
| -import 'package:polymer_expressions/eval.dart';
|
| -import 'package:polymer_expressions/filter.dart';
|
| -import 'package:polymer_expressions/parser.dart';
|
| -import 'package:unittest/unittest.dart';
|
| -import 'package:observe/observe.dart';
|
| -import 'package:observe/mirrors_used.dart'; // make test smaller.
|
| -
|
| -main() {
|
| - reflectClass(Object); // suppress unused import warning
|
| -
|
| - group('eval', () {
|
| - test('should return the model for an empty expression', () {
|
| - expectEval('', 'model', 'model');
|
| - });
|
| -
|
| - test('should handle the "this" keyword', () {
|
| - expectEval('this', 'model', 'model');
|
| - expectEval('this.name', 'foo', new Foo(name: 'foo'));
|
| - expectEval('this["a"]', 'x', {'a': 'x'});
|
| - });
|
| -
|
| - test('should return a literal int', () {
|
| - expectEval('1', 1);
|
| - expectEval('+1', 1);
|
| - expectEval('-1', -1);
|
| - });
|
| -
|
| - test('should return a literal double', () {
|
| - expectEval('1.2', 1.2);
|
| - expectEval('+1.2', 1.2);
|
| - expectEval('-1.2', -1.2);
|
| - });
|
| -
|
| - test('should return a literal string', () {
|
| - expectEval('"hello"', "hello");
|
| - expectEval("'hello'", "hello");
|
| - });
|
| -
|
| - test('should return a literal boolean', () {
|
| - expectEval('true', true);
|
| - expectEval('false', false);
|
| - });
|
| -
|
| - test('should return a literal null', () {
|
| - expectEval('null', null);
|
| - });
|
| -
|
| - test('should return a literal list', () {
|
| - expectEval('[1, 2, 3]', equals([1, 2, 3]));
|
| - });
|
| -
|
| - test('should return a literal map', () {
|
| - expectEval('{"a": 1}', equals(new Map.from({'a': 1})));
|
| - expectEval('{"a": 1}', containsPair('a', 1));
|
| - });
|
| -
|
| - test('should call methods on a literal map', () {
|
| - expectEval('{"a": 1}.length', 1);
|
| - });
|
| -
|
| - test('should evaluate unary operators', () {
|
| - expectEval('+a', 2, null, {'a': 2});
|
| - expectEval('-a', -2, null, {'a': 2});
|
| - expectEval('!a', false, null, {'a': true});
|
| - });
|
| -
|
| - test('should evaluate binary operators', () {
|
| - expectEval('1 + 2', 3);
|
| - expectEval('2 - 1', 1);
|
| - expectEval('4 / 2', 2);
|
| - expectEval('2 * 3', 6);
|
| - expectEval('5 % 2', 1);
|
| - expectEval('5 % -2', 1);
|
| - expectEval('-5 % 2', 1);
|
| -
|
| - expectEval('1 == 1', true);
|
| - expectEval('1 == 2', false);
|
| - expectEval('1 == null', false);
|
| - expectEval('1 != 1', false);
|
| - expectEval('1 != 2', true);
|
| - expectEval('1 != null', true);
|
| -
|
| - var x = {};
|
| - var y = {};
|
| - expectEval('x === y', true, null, {'x': x, 'y': x});
|
| - expectEval('x !== y', false, null, {'x': x, 'y': x});
|
| - expectEval('x === y', false, null, {'x': x, 'y': y});
|
| - expectEval('x !== y', true, null, {'x': x, 'y': y});
|
| -
|
| - expectEval('1 > 1', false);
|
| - expectEval('1 > 2', false);
|
| - expectEval('2 > 1', true);
|
| - expectEval('1 >= 1', true);
|
| - expectEval('1 >= 2', false);
|
| - expectEval('2 >= 1', true);
|
| - expectEval('1 < 1', false);
|
| - expectEval('1 < 2', true);
|
| - expectEval('2 < 1', false);
|
| - expectEval('1 <= 1', true);
|
| - expectEval('1 <= 2', true);
|
| - expectEval('2 <= 1', false);
|
| -
|
| - expectEval('true || true', true);
|
| - expectEval('true || false', true);
|
| - expectEval('false || true', true);
|
| - expectEval('false || false', false);
|
| -
|
| - expectEval('true && true', true);
|
| - expectEval('true && false', false);
|
| - expectEval('false && true', false);
|
| - expectEval('false && false', false);
|
| - });
|
| -
|
| - test('should evaulate ternary operators', () {
|
| - expectEval('true ? 1 : 2', 1);
|
| - expectEval('false ? 1 : 2', 2);
|
| - expectEval('true ? true ? 1 : 2 : 3', 1);
|
| - expectEval('true ? false ? 1 : 2 : 3', 2);
|
| - expectEval('false ? true ? 1 : 2 : 3', 3);
|
| - expectEval('false ? 1 : true ? 2 : 3', 2);
|
| - expectEval('false ? 1 : false ? 2 : 3', 3);
|
| - expectEval('null ? 1 : 2', 2);
|
| - // TODO(justinfagnani): re-enable and check for an EvalError when
|
| - // we implement the final bool conversion rules and this expression
|
| - // throws in both checked and unchecked mode
|
| -// expect(() => eval(parse('42 ? 1 : 2'), null), throws);
|
| - });
|
| -
|
| - test('should invoke a method on the model', () {
|
| - var foo = new Foo(name: 'foo', age: 2);
|
| - expectEval('x()', foo.x(), foo);
|
| - expectEval('name', foo.name, foo);
|
| - });
|
| -
|
| - test('should invoke chained methods', () {
|
| - var foo = new Foo(name: 'foo', age: 2);
|
| - expectEval('name.length', foo.name.length, foo);
|
| - expectEval('x().toString()', foo.x().toString(), foo);
|
| - expectEval('name.substring(2)', foo.name.substring(2), foo);
|
| - expectEval('a()()', 1, null, {'a': () => () => 1});
|
| - });
|
| -
|
| - test('should invoke a top-level function', () {
|
| - expectEval('x()', 42, null, {'x': () => 42});
|
| - expectEval('x(5)', 5, null, {'x': (i) => i});
|
| - expectEval('y(5, 10)', 50, null, {'y': (i, j) => i * j});
|
| - });
|
| -
|
| - test('should give precedence to top-level functions over methods', () {
|
| - var foo = new Foo(name: 'foo', age: 2);
|
| - expectEval('x()', 42, foo, {'x': () => 42});
|
| - });
|
| -
|
| - test('should invoke the [] operator', () {
|
| - var map = {'a': 1, 'b': 2};
|
| - expectEval('map["a"]', 1, null, {'map': map});
|
| - expectEval('map["a"] + map["b"]', 3, null, {'map': map});
|
| - });
|
| -
|
| - test('should call a filter', () {
|
| - var topLevel = {
|
| - 'a': 'foo',
|
| - 'uppercase': (s) => s.toUpperCase(),
|
| - };
|
| - expectEval('a | uppercase', 'FOO', null, topLevel);
|
| - });
|
| -
|
| - test('should call a transformer', () {
|
| - var topLevel = {
|
| - 'a': '42',
|
| - 'parseInt': parseInt,
|
| - 'add': add,
|
| - };
|
| - expectEval('a | parseInt()', 42, null, topLevel);
|
| - expectEval('a | parseInt(8)', 34, null, topLevel);
|
| - expectEval('a | parseInt() | add(10)', 52, null, topLevel);
|
| - });
|
| -
|
| - test('should filter a list', () {
|
| - expectEval('chars1 | filteredList', ['a', 'b'], new WordElement());
|
| - });
|
| -
|
| - test('should return null if the receiver of a method is null', () {
|
| - expectEval('a.b', null, null, {'a': null});
|
| - expectEval('a.b()', null, null, {'a': null});
|
| - });
|
| -
|
| - test('should return null if null is invoked', () {
|
| - expectEval('a()', null, null, {'a': null});
|
| - });
|
| -
|
| - test('should return null if an operand is null', () {
|
| - expectEval('a + b', null, null, {'a': null, 'b': null});
|
| - expectEval('+a', null, null, {'a': null});
|
| - });
|
| -
|
| - test('should treat null as false', () {
|
| - expectEval('!null', true);
|
| - expectEval('true && null', false);
|
| - expectEval('null || false', false);
|
| -
|
| - expectEval('!a', true, null, {'a': null});
|
| -
|
| - expectEval('a && b', false, null, {'a': null, 'b': true});
|
| - expectEval('a && b', false, null, {'a': true, 'b': null});
|
| - expectEval('a && b', false, null, {'a': null, 'b': false});
|
| - expectEval('a && b', false, null, {'a': false, 'b': null});
|
| - expectEval('a && b', false, null, {'a': null, 'b': null});
|
| -
|
| - expectEval('a || b', true, null, {'a': null, 'b': true});
|
| - expectEval('a || b', true, null, {'a': true, 'b': null});
|
| - expectEval('a || b', false, null, {'a': null, 'b': false});
|
| - expectEval('a || b', false, null, {'a': false, 'b': null});
|
| - expectEval('a || b', false, null, {'a': null, 'b': null});
|
| - });
|
| -
|
| - test('should not evaluate "in" expressions', () {
|
| - expect(() => eval(parse('item in items'), null), throws);
|
| - });
|
| -
|
| - });
|
| -
|
| - group('assign', () {
|
| -
|
| - test('should assign a single identifier', () {
|
| - var foo = new Foo(name: 'a');
|
| - assign(parse('name'), 'b', new Scope(model: foo));
|
| - expect(foo.name, 'b');
|
| - });
|
| -
|
| - test('should assign a sub-property', () {
|
| - var child = new Foo(name: 'child');
|
| - var parent = new Foo(child: child);
|
| - assign(parse('child.name'), 'Joe', new Scope(model: parent));
|
| - expect(parent.child.name, 'Joe');
|
| - });
|
| -
|
| - test('should assign an index', () {
|
| - var foo = new Foo(items: [1, 2, 3]);
|
| - assign(parse('items[0]'), 4, new Scope(model: foo));
|
| - expect(foo.items[0], 4);
|
| - assign(parse('items[a]'), 5, new Scope(model: foo, variables: {'a': 0}));
|
| - expect(foo.items[0], 5);
|
| - });
|
| -
|
| - test('should assign with a function call subexpression', () {
|
| - var child = new Foo();
|
| - var foo = new Foo(items: [1, 2, 3], child: child);
|
| - assign(parse('getChild().name'), 'child', new Scope(model: foo));
|
| - expect(child.name, 'child');
|
| - });
|
| -
|
| - test('should assign through transformers', () {
|
| - var foo = new Foo(name: '42', age: 32);
|
| - var globals = {
|
| - 'a': '42',
|
| - 'parseInt': parseInt,
|
| - 'add': add,
|
| - };
|
| - var scope = new Scope(model: foo, variables: globals);
|
| - assign(parse('age | add(7)'), 29, scope);
|
| - expect(foo.age, 22);
|
| - assign(parse('name | parseInt() | add(10)'), 29, scope);
|
| - expect(foo.name, '19');
|
| - });
|
| -
|
| - test('should not throw on assignments to properties on null', () {
|
| - assign(parse('name'), 'b', new Scope(model: null));
|
| - });
|
| -
|
| - test('should throw on assignments to non-assignable expressions', () {
|
| - var foo = new Foo(name: 'a');
|
| - var scope = new Scope(model: foo);
|
| - expect(() => assign(parse('name + 1'), 1, scope),
|
| - throwsA(new isInstanceOf<EvalException>()));
|
| - expect(() => assign(parse('toString()'), 1, scope),
|
| - throwsA(new isInstanceOf<EvalException>()));
|
| - expect(() => assign(parse('name | filter'), 1, scope),
|
| - throwsA(new isInstanceOf<EvalException>()));
|
| - });
|
| -
|
| - test('should not throw on assignments to non-assignable expressions if '
|
| - 'checkAssignability is false', () {
|
| - var foo = new Foo(name: 'a');
|
| - var scope = new Scope(model: foo);
|
| - expect(
|
| - assign(parse('name + 1'), 1, scope, checkAssignability: false),
|
| - null);
|
| - expect(
|
| - assign(parse('toString()'), 1, scope, checkAssignability: false),
|
| - null);
|
| - expect(
|
| - assign(parse('name | filter'), 1, scope, checkAssignability: false),
|
| - null);
|
| - });
|
| -
|
| - });
|
| -
|
| - group('scope', () {
|
| - test('should return fields on the model', () {
|
| - var foo = new Foo(name: 'a', age: 1);
|
| - var scope = new Scope(model: foo);
|
| - expect(scope['name'], 'a');
|
| - expect(scope['age'], 1);
|
| - });
|
| -
|
| - test('should throw for undefined names', () {
|
| - var scope = new Scope();
|
| - expect(() => scope['a'], throwsException);
|
| - });
|
| -
|
| - test('should return variables', () {
|
| - var scope = new Scope(variables: {'a': 'A'});
|
| - expect(scope['a'], 'A');
|
| - });
|
| -
|
| - test("should a field from the parent's model", () {
|
| - var parent = new Scope(variables: {'a': 'A', 'b': 'B'});
|
| - var child = parent.childScope('a', 'a');
|
| - expect(child['a'], 'a');
|
| - expect(parent['a'], 'A');
|
| - expect(child['b'], 'B');
|
| - });
|
| -
|
| - });
|
| -
|
| - group('observe', () {
|
| - test('should observe an identifier', () {
|
| - var foo = new Foo(name: 'foo');
|
| - return expectObserve('name',
|
| - model: foo,
|
| - beforeMatcher: 'foo',
|
| - mutate: () {
|
| - foo.name = 'fooz';
|
| - },
|
| - afterMatcher: 'fooz'
|
| - );
|
| - });
|
| -
|
| - test('should observe an invocation', () {
|
| - var foo = new Foo(name: 'foo');
|
| - return expectObserve('foo.name',
|
| - variables: {'foo': foo},
|
| - beforeMatcher: 'foo',
|
| - mutate: () {
|
| - foo.name = 'fooz';
|
| - },
|
| - afterMatcher: 'fooz'
|
| - );
|
| - });
|
| -
|
| - test('should observe map access', () {
|
| - var foo = toObservable({'one': 'one', 'two': 'two'});
|
| - return expectObserve('foo["one"]',
|
| - variables: {'foo': foo},
|
| - beforeMatcher: 'one',
|
| - mutate: () {
|
| - foo['one'] = '1';
|
| - },
|
| - afterMatcher: '1'
|
| - );
|
| - });
|
| -
|
| - });
|
| -
|
| -}
|
| -
|
| -@reflectable
|
| -class Foo extends ChangeNotifier {
|
| - String _name;
|
| - String get name => _name;
|
| - void set name(String n) {
|
| - _name = notifyPropertyChange(#name, _name, n);
|
| - }
|
| -
|
| - int age;
|
| - Foo child;
|
| - List<int> items;
|
| -
|
| - Foo({name, this.age, this.child, this.items}) : _name = name;
|
| -
|
| - int x() => age * age;
|
| -
|
| - getChild() => child;
|
| -
|
| - filter(i) => i;
|
| -}
|
| -
|
| -@reflectable
|
| -class ListHolder {
|
| - List items;
|
| - ListHolder(this.items);
|
| -}
|
| -
|
| -parseInt([int radix = 10]) => new IntToString(radix: radix);
|
| -
|
| -class IntToString extends Transformer<int, String> {
|
| - final int radix;
|
| - IntToString({this.radix: 10});
|
| - int forward(String s) => int.parse(s, radix: radix);
|
| - String reverse(int i) => '$i';
|
| -}
|
| -
|
| -add(int i) => new Add(i);
|
| -
|
| -class Add extends Transformer<int, int> {
|
| - final int i;
|
| - Add(this.i);
|
| - int forward(int x) => x + i;
|
| - int reverse(int x) => x - i;
|
| -}
|
| -
|
| -Object evalString(String s, [Object model, Map vars]) =>
|
| - eval(new Parser(s).parse(), new Scope(model: model, variables: vars));
|
| -
|
| -expectEval(String s, dynamic matcher, [Object model, Map vars = const {}]) {
|
| - var expr = new Parser(s).parse();
|
| - var scope = new Scope(model: model, variables: vars);
|
| - expect(eval(expr, scope), matcher, reason: s);
|
| -
|
| - var observer = observe(expr, scope);
|
| - new Updater(scope).visit(observer);
|
| - expect(observer.currentValue, matcher, reason: s);
|
| -}
|
| -
|
| -expectObserve(String s, {
|
| - Object model,
|
| - Map variables: const {},
|
| - dynamic beforeMatcher,
|
| - mutate(),
|
| - dynamic afterMatcher}) {
|
| -
|
| - var scope = new Scope(model: model, variables: variables);
|
| - var observer = observe(new Parser(s).parse(), scope);
|
| - update(observer, scope);
|
| - expect(observer.currentValue, beforeMatcher);
|
| - var passed = false;
|
| - var future = observer.onUpdate.first.then((value) {
|
| - expect(value, afterMatcher);
|
| - expect(observer.currentValue, afterMatcher);
|
| - passed = true;
|
| - });
|
| - mutate();
|
| - // fail if we don't receive an update by the next event loop
|
| - return Future.wait([future, new Future(() {
|
| - expect(passed, true, reason: "Didn't receive a change notification on $s");
|
| - })]);
|
| -}
|
| -
|
| -// Regression test from https://code.google.com/p/dart/issues/detail?id=13459
|
| -class WordElement extends Observable {
|
| - @observable List chars1 = 'abcdefg'.split('');
|
| - @reflectable List filteredList(List original) => [original[0], original[1]];
|
| -}
|
|
|