| // Copyright (c) 2016, 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. |
| |
| import 'package:test/test.dart'; |
| |
| import 'package:boolean_selector/boolean_selector.dart'; |
| |
| void main() { |
| group("toString() for", () { |
| test("a variable is its name", () { |
| _expectToString("foo"); |
| _expectToString("a-b"); |
| }); |
| |
| group("not", () { |
| test("doesn't parenthesize a variable", () => _expectToString("!a")); |
| test("doesn't parenthesize a nested not", () => _expectToString("!!a")); |
| test("parenthesizes an or", () => _expectToString("!(a || b)")); |
| test("parenthesizes an and", () => _expectToString("!(a && b)")); |
| test("parenthesizes a condition", () => _expectToString("!(a ? b : c)")); |
| }); |
| |
| group("or", () { |
| test("doesn't parenthesize variables", () => _expectToString("a || b")); |
| test("doesn't parenthesize nots", () => _expectToString("!a || !b")); |
| |
| test("doesn't parenthesize ors", () { |
| _expectToString("a || b || c || d"); |
| _expectToString("((a || b) || c) || d", "a || b || c || d"); |
| }); |
| |
| test("parenthesizes ands", () => |
| _expectToString("a && b || c && d", "(a && b) || (c && d)")); |
| |
| test("parenthesizes conditions", () => |
| _expectToString("(a ? b : c) || (e ? f : g)")); |
| }); |
| |
| group("and", () { |
| test("doesn't parenthesize variables", () => _expectToString("a && b")); |
| test("doesn't parenthesize nots", () => _expectToString("!a && !b")); |
| |
| test("parenthesizes ors", () => |
| _expectToString("(a || b) && (c || d)", "(a || b) && (c || d)")); |
| |
| test("doesn't parenthesize ands", () { |
| _expectToString("a && b && c && d"); |
| _expectToString("((a && b) && c) && d", "a && b && c && d"); |
| }); |
| |
| test("parenthesizes conditions", () => |
| _expectToString("(a ? b : c) && (e ? f : g)")); |
| }); |
| |
| group("conditional", () { |
| test("doesn't parenthesize variables", () => |
| _expectToString("a ? b : c")); |
| |
| test("doesn't parenthesize nots", () => _expectToString("!a ? !b : !c")); |
| |
| test("doesn't parenthesize ors", () => |
| _expectToString("a || b ? c || d : e || f")); |
| |
| test("doesn't parenthesize ands", () => |
| _expectToString("a && b ? c && d : e && f")); |
| |
| test("parenthesizes non-trailing conditions", () { |
| _expectToString("(a ? b : c) ? (e ? f : g) : h ? i : j"); |
| _expectToString("(a ? b : c) ? (e ? f : g) : (h ? i : j)", |
| "(a ? b : c) ? (e ? f : g) : h ? i : j"); |
| }); |
| }); |
| }); |
| } |
| |
| void _expectToString(String selector, [String result]) { |
| if (result == null) result = selector; |
| expect(_toString(selector), equals(result), |
| reason: 'Expected toString of "$selector" to be "$result".'); |
| } |
| |
| String _toString(String selector) => |
| new BooleanSelector.parse(selector).toString(); |