| // Copyright (c) 2012, 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. |
| |
| /** Common definitions used for setting up the test environment. */ |
| library testing; |
| |
| import 'package:csslib/parser.dart'; |
| import 'package:csslib/visitor.dart'; |
| import 'package:csslib/src/messages.dart'; |
| |
| useMockMessages() { |
| messages = new Messages(printHandler: (message) {}); |
| } |
| |
| /** |
| * Spin-up CSS parser in checked mode to detect any problematic CSS. Normally, |
| * CSS will allow any property/value pairs regardless of validity; all of our |
| * tests (by default) will ensure that the CSS is really valid. |
| */ |
| StyleSheet parseCss(String cssInput, {List errors, List opts}) => |
| parse(cssInput, errors: errors, options: opts == null ? |
| ['--no-colors', '--checked', '--warnings_as_errors', 'memory'] : opts); |
| |
| /** |
| * Spin-up CSS parser in checked mode to detect any problematic CSS. Normally, |
| * CSS will allow any property/value pairs regardless of validity; all of our |
| * tests (by default) will ensure that the CSS is really valid. |
| */ |
| StyleSheet compileCss(String cssInput, {List errors, List opts, |
| bool polyfill: false, List<StyleSheet> includes: null}) => |
| compile(cssInput, errors: errors, options: opts == null ? |
| ['--no-colors', '--checked', '--warnings_as_errors', 'memory'] : opts, |
| polyfill: polyfill, includes: includes); |
| |
| StyleSheet polyFillCompileCss(input, {List errors, List opts}) => |
| compileCss(input, errors: errors, polyfill: true, opts: opts); |
| |
| /** CSS emitter walks the style sheet tree and emits readable CSS. */ |
| var _emitCss = new CssPrinter(); |
| |
| /** Simple Visitor does nothing but walk tree. */ |
| var _cssVisitor = new Visitor(); |
| |
| /** Pretty printer for CSS. */ |
| String prettyPrint(StyleSheet ss) { |
| // Walk the tree testing basic Vistor class. |
| walkTree(ss); |
| return (_emitCss..visitTree(ss, pretty: true)).toString(); |
| } |
| |
| /** |
| * Helper function to emit compact (non-pretty printed) CSS for suite test |
| * comparsions. Spaces, new lines, etc. are reduced for easier comparsions of |
| * expected suite test results. |
| */ |
| String compactOuptut(StyleSheet ss) { |
| walkTree(ss); |
| return (_emitCss..visitTree(ss, pretty: false)).toString(); |
| } |
| |
| /** Walks the style sheet tree does nothing; insures the basic walker works. */ |
| void walkTree(StyleSheet ss) { |
| _cssVisitor..visitTree(ss); |
| } |
| |
| String dumpTree(StyleSheet ss) => treeToDebugString(ss); |
| |
| |