terry@google.com
88f208988c
BUG= R=sigmund@google.com Review URL: https://codereview.chromium.org//23868008 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@27320 260f80e4-7a28-3924-810f-c04153c831b5
67 lines
2.3 KiB
Dart
67 lines
2.3 KiB
Dart
// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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/** Common definitions used for setting up the test environment. */
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library testing;
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import 'package:csslib/parser.dart';
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import 'package:csslib/visitor.dart';
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import 'package:csslib/src/messages.dart';
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useMockMessages() {
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messages = new Messages(printHandler: (message) {});
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}
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/**
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* Spin-up CSS parser in checked mode to detect any problematic CSS. Normally,
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* CSS will allow any property/value pairs regardless of validity; all of our
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* tests (by default) will ensure that the CSS is really valid.
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*/
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StyleSheet parseCss(String cssInput, {List errors, List opts}) =>
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parse(cssInput, errors: errors, options: opts == null ?
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['--no-colors', '--checked', '--warnings_as_errors', 'memory'] : opts);
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/**
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* Spin-up CSS parser in checked mode to detect any problematic CSS. Normally,
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* CSS will allow any property/value pairs regardless of validity; all of our
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* tests (by default) will ensure that the CSS is really valid.
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*/
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StyleSheet compileCss(String cssInput,
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{List errors, List opts, bool polyfill: false}) =>
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compile(cssInput, errors: errors, options: opts == null ?
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['--no-colors', '--checked', '--warnings_as_errors', 'memory'] : opts,
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polyfill: polyfill);
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/** CSS emitter walks the style sheet tree and emits readable CSS. */
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var _emitCss = new CssPrinter();
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/** Simple Visitor does nothing but walk tree. */
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var _cssVisitor = new Visitor();
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/** Pretty printer for CSS. */
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String prettyPrint(StyleSheet ss) {
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// Walk the tree testing basic Vistor class.
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walkTree(ss);
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return (_emitCss..visitTree(ss, pretty: true)).toString();
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}
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/**
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* Helper function to emit compact (non-pretty printed) CSS for suite test
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* comparsions. Spaces, new lines, etc. are reduced for easier comparsions of
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* expected suite test results.
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*/
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String compactOuptut(StyleSheet ss) {
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walkTree(ss);
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return (_emitCss..visitTree(ss, pretty: false)).toString();
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}
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/** Walks the style sheet tree does nothing; insures the basic walker works. */
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void walkTree(StyleSheet ss) {
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_cssVisitor..visitTree(ss);
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}
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String dumpTree(StyleSheet ss) => treeToDebugString(ss);
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