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// Copyright 2008 The Closure Library Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS-IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
goog.provide('goog.dom.TextRangeIteratorTest');
goog.setTestOnly('goog.dom.TextRangeIteratorTest');
goog.require('goog.dom');
goog.require('goog.dom.TagName');
goog.require('goog.dom.TextRangeIterator');
goog.require('goog.iter.StopIteration');
goog.require('goog.testing.dom');
goog.require('goog.testing.jsunit');
var test;
var test2;
function setUpPage() {
test = goog.dom.getElement('test');
test2 = goog.dom.getElement('test2');
}
function testBasic() {
goog.testing.dom.assertNodesMatch(
new goog.dom.TextRangeIterator(test, 0, test, 2),
['#a1', 'T', '#b1', 'e', '#b1', 'xt', '#a1', '#span1', '#span1', '#p1']);
}
function testAdjustStart() {
var iterator = new goog.dom.TextRangeIterator(test, 0, test, 2);
iterator.setStartNode(goog.dom.getElement('span1'));
goog.testing.dom.assertNodesMatch(iterator, ['#span1', '#span1', '#p1']);
}
function testAdjustEnd() {
var iterator = new goog.dom.TextRangeIterator(test, 0, test, 2);
iterator.setEndNode(goog.dom.getElement('span1'));
goog.testing.dom.assertNodesMatch(
iterator, ['#a1', 'T', '#b1', 'e', '#b1', 'xt', '#a1', '#span1']);
}
function testOffsets() {
var iterator =
new goog.dom.TextRangeIterator(test2.firstChild, 1, test2.lastChild, 2);
// foo
var node = iterator.next();
assertEquals(
'Should have start offset at iteration step 1', 1,
iterator.getStartTextOffset());
assertEquals(
'Should not have end offset at iteration step 1', node.nodeValue.length,
iterator.getEndTextOffset());
// <br>
node = iterator.next();
assertEquals(
'Should not have start offset at iteration step 2', -1,
iterator.getStartTextOffset());
assertEquals(
'Should not have end offset at iteration step 2', -1,
iterator.getEndTextOffset());
// </br>
node = iterator.next();
assertEquals(
'Should not have start offset at iteration step 3', -1,
iterator.getStartTextOffset());
assertEquals(
'Should not have end offset at iteration step 3', -1,
iterator.getEndTextOffset());
// bar
node = iterator.next();
assertEquals(
'Should not have start offset at iteration step 4', 0,
iterator.getStartTextOffset());
assertEquals(
'Should have end offset at iteration step 4', 2,
iterator.getEndTextOffset());
}
function testSingleNodeOffsets() {
var iterator =
new goog.dom.TextRangeIterator(test2.firstChild, 1, test2.firstChild, 2);
iterator.next();
assertEquals('Should have start offset', 1, iterator.getStartTextOffset());
assertEquals('Should have end offset', 2, iterator.getEndTextOffset());
}
function testEndNodeOffsetAtEnd() {
var iterator = new goog.dom.TextRangeIterator(
goog.dom.getElement('b1').firstChild, 0, goog.dom.getElement('b1'), 1);
goog.testing.dom.assertNodesMatch(iterator, ['e', '#b1']);
}
function testSkipTagDoesNotSkipEnd() {
// Iterate over 'Tex'.
var iterator = new goog.dom.TextRangeIterator(
test.firstChild.firstChild, 0, test.firstChild.lastChild, 1);
var node = iterator.next();
assertEquals('T', node.nodeValue);
node = iterator.next();
assertEquals(String(goog.dom.TagName.B), node.tagName);
iterator.skipTag();
node = iterator.next();
assertEquals('xt', node.nodeValue);
}
function testSkipTagSkipsEnd() {
// Iterate over 'Te'.
var iterator = new goog.dom.TextRangeIterator(
test.firstChild.firstChild, 0,
goog.dom.getElementsByTagName(goog.dom.TagName.B, test)[0].firstChild, 1);
var node = iterator.next();
assertEquals('T', node.nodeValue);
node = iterator.next();
assertEquals(String(goog.dom.TagName.B), node.tagName);
var ex = assertThrows('Should stop iteration when skipping B', function() {
iterator.skipTag();
});
assertEquals(goog.iter.StopIteration, ex);
}
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