1// Copyright 2014 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#include "config.h"
6#include "core/dom/Range.h"
7
8#include "bindings/core/v8/ExceptionStatePlaceholder.h"
9#include "core/dom/Element.h"
10#include "core/dom/NodeList.h"
11#include "core/dom/Text.h"
12#include "core/html/HTMLBodyElement.h"
13#include "core/html/HTMLDocument.h"
14#include "core/html/HTMLElement.h"
15#include "core/html/HTMLHtmlElement.h"
16#include "platform/heap/Handle.h"
17#include "wtf/Compiler.h"
18#include "wtf/RefPtr.h"
19#include "wtf/text/AtomicString.h"
20#include <gtest/gtest.h>
21
22using namespace blink;
23
24namespace {
25
26class RangeTest : public ::testing::Test {
27protected:
28    virtual void SetUp() OVERRIDE;
29
30    HTMLDocument& document() const;
31
32private:
33    RefPtrWillBePersistent<HTMLDocument> m_document;
34};
35
36void RangeTest::SetUp()
37{
38    m_document = HTMLDocument::create();
39    RefPtrWillBeRawPtr<HTMLHtmlElement> html = HTMLHtmlElement::create(*m_document);
40    html->appendChild(HTMLBodyElement::create(*m_document));
41    m_document->appendChild(html.release());
42}
43
44HTMLDocument& RangeTest::document() const
45{
46    return *m_document;
47}
48
49TEST_F(RangeTest, SplitTextNodeRangeWithinText)
50{
51    document().body()->setInnerHTML("1234", ASSERT_NO_EXCEPTION);
52    Text* oldText = toText(document().body()->firstChild());
53
54    RefPtrWillBeRawPtr<Range> range04 = Range::create(document(), oldText, 0, oldText, 4);
55    RefPtrWillBeRawPtr<Range> range02 = Range::create(document(), oldText, 0, oldText, 2);
56    RefPtrWillBeRawPtr<Range> range22 = Range::create(document(), oldText, 2, oldText, 2);
57    RefPtrWillBeRawPtr<Range> range24 = Range::create(document(), oldText, 2, oldText, 4);
58
59    oldText->splitText(2, ASSERT_NO_EXCEPTION);
60    Text* newText = toText(oldText->nextSibling());
61
62    EXPECT_TRUE(range04->boundaryPointsValid());
63    EXPECT_EQ(oldText, range04->startContainer());
64    EXPECT_EQ(0, range04->startOffset());
65    EXPECT_EQ(newText, range04->endContainer());
66    EXPECT_EQ(2, range04->endOffset());
67
68    EXPECT_TRUE(range02->boundaryPointsValid());
69    EXPECT_EQ(oldText, range02->startContainer());
70    EXPECT_EQ(0, range02->startOffset());
71    EXPECT_EQ(oldText, range02->endContainer());
72    EXPECT_EQ(2, range02->endOffset());
73
74    // Our implementation always moves the boundary point at the separation point to the end of the original text node.
75    EXPECT_TRUE(range22->boundaryPointsValid());
76    EXPECT_EQ(oldText, range22->startContainer());
77    EXPECT_EQ(2, range22->startOffset());
78    EXPECT_EQ(oldText, range22->endContainer());
79    EXPECT_EQ(2, range22->endOffset());
80
81    EXPECT_TRUE(range24->boundaryPointsValid());
82    EXPECT_EQ(oldText, range24->startContainer());
83    EXPECT_EQ(2, range24->startOffset());
84    EXPECT_EQ(newText, range24->endContainer());
85    EXPECT_EQ(2, range24->endOffset());
86}
87
88TEST_F(RangeTest, SplitTextNodeRangeOutsideText)
89{
90    document().body()->setInnerHTML("<span id=\"outer\">0<span id=\"inner-left\">1</span>SPLITME<span id=\"inner-right\">2</span>3</span>", ASSERT_NO_EXCEPTION);
91
92    Element* outer = document().getElementById(AtomicString::fromUTF8("outer"));
93    Element* innerLeft = document().getElementById(AtomicString::fromUTF8("inner-left"));
94    Element* innerRight = document().getElementById(AtomicString::fromUTF8("inner-right"));
95    Text* oldText = toText(outer->childNodes()->item(2));
96
97    RefPtrWillBeRawPtr<Range> rangeOuterOutside = Range::create(document(), outer, 0, outer, 5);
98    RefPtrWillBeRawPtr<Range> rangeOuterInside = Range::create(document(), outer, 1, outer, 4);
99    RefPtrWillBeRawPtr<Range> rangeOuterSurroundingText = Range::create(document(), outer, 2, outer, 3);
100    RefPtrWillBeRawPtr<Range> rangeInnerLeft = Range::create(document(), innerLeft, 0, innerLeft, 1);
101    RefPtrWillBeRawPtr<Range> rangeInnerRight = Range::create(document(), innerRight, 0, innerRight, 1);
102    RefPtrWillBeRawPtr<Range> rangeFromTextToMiddleOfElement = Range::create(document(), oldText, 6, outer, 3);
103
104    oldText->splitText(3, ASSERT_NO_EXCEPTION);
105    Text* newText = toText(oldText->nextSibling());
106
107    EXPECT_TRUE(rangeOuterOutside->boundaryPointsValid());
108    EXPECT_EQ(outer, rangeOuterOutside->startContainer());
109    EXPECT_EQ(0, rangeOuterOutside->startOffset());
110    EXPECT_EQ(outer, rangeOuterOutside->endContainer());
111    EXPECT_EQ(6, rangeOuterOutside->endOffset()); // Increased by 1 since a new node is inserted.
112
113    EXPECT_TRUE(rangeOuterInside->boundaryPointsValid());
114    EXPECT_EQ(outer, rangeOuterInside->startContainer());
115    EXPECT_EQ(1, rangeOuterInside->startOffset());
116    EXPECT_EQ(outer, rangeOuterInside->endContainer());
117    EXPECT_EQ(5, rangeOuterInside->endOffset());
118
119    EXPECT_TRUE(rangeOuterSurroundingText->boundaryPointsValid());
120    EXPECT_EQ(outer, rangeOuterSurroundingText->startContainer());
121    EXPECT_EQ(2, rangeOuterSurroundingText->startOffset());
122    EXPECT_EQ(outer, rangeOuterSurroundingText->endContainer());
123    EXPECT_EQ(4, rangeOuterSurroundingText->endOffset());
124
125    EXPECT_TRUE(rangeInnerLeft->boundaryPointsValid());
126    EXPECT_EQ(innerLeft, rangeInnerLeft->startContainer());
127    EXPECT_EQ(0, rangeInnerLeft->startOffset());
128    EXPECT_EQ(innerLeft, rangeInnerLeft->endContainer());
129    EXPECT_EQ(1, rangeInnerLeft->endOffset());
130
131    EXPECT_TRUE(rangeInnerRight->boundaryPointsValid());
132    EXPECT_EQ(innerRight, rangeInnerRight->startContainer());
133    EXPECT_EQ(0, rangeInnerRight->startOffset());
134    EXPECT_EQ(innerRight, rangeInnerRight->endContainer());
135    EXPECT_EQ(1, rangeInnerRight->endOffset());
136
137    EXPECT_TRUE(rangeFromTextToMiddleOfElement->boundaryPointsValid());
138    EXPECT_EQ(newText, rangeFromTextToMiddleOfElement->startContainer());
139    EXPECT_EQ(3, rangeFromTextToMiddleOfElement->startOffset());
140    EXPECT_EQ(outer, rangeFromTextToMiddleOfElement->endContainer());
141    EXPECT_EQ(4, rangeFromTextToMiddleOfElement->endOffset());
142}
143
144}
145