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/TreeScope.h"
7
8#include "core/dom/Document.h"
9#include "core/dom/Element.h"
10#include "core/dom/shadow/ShadowRoot.h"
11#include <gtest/gtest.h>
12
13using namespace blink;
14
15namespace {
16
17TEST(TreeScopeTest, CommonAncestorOfSameTrees)
18{
19    RefPtrWillBeRawPtr<Document> document = Document::create();
20    EXPECT_EQ(document.get(), document->commonAncestorTreeScope(*document));
21
22    RefPtrWillBeRawPtr<Element> html = document->createElement("html", nullAtom, ASSERT_NO_EXCEPTION);
23    document->appendChild(html, ASSERT_NO_EXCEPTION);
24    RefPtrWillBeRawPtr<ShadowRoot> shadowRoot = html->createShadowRoot(ASSERT_NO_EXCEPTION);
25    EXPECT_EQ(shadowRoot.get(), shadowRoot->commonAncestorTreeScope(*shadowRoot));
26}
27
28TEST(TreeScopeTest, CommonAncestorOfInclusiveTrees)
29{
30    //  document
31    //     |      : Common ancestor is document.
32    // shadowRoot
33
34    RefPtrWillBeRawPtr<Document> document = Document::create();
35    RefPtrWillBeRawPtr<Element> html = document->createElement("html", nullAtom, ASSERT_NO_EXCEPTION);
36    document->appendChild(html, ASSERT_NO_EXCEPTION);
37    RefPtrWillBeRawPtr<ShadowRoot> shadowRoot = html->createShadowRoot(ASSERT_NO_EXCEPTION);
38
39    EXPECT_EQ(document.get(), document->commonAncestorTreeScope(*shadowRoot));
40    EXPECT_EQ(document.get(), shadowRoot->commonAncestorTreeScope(*document));
41}
42
43TEST(TreeScopeTest, CommonAncestorOfSiblingTrees)
44{
45    //  document
46    //   /    \  : Common ancestor is document.
47    //  A      B
48
49    RefPtrWillBeRawPtr<Document> document = Document::create();
50    RefPtrWillBeRawPtr<Element> html = document->createElement("html", nullAtom, ASSERT_NO_EXCEPTION);
51    document->appendChild(html, ASSERT_NO_EXCEPTION);
52    RefPtrWillBeRawPtr<Element> head = document->createElement("head", nullAtom, ASSERT_NO_EXCEPTION);
53    html->appendChild(head);
54    RefPtrWillBeRawPtr<Element> body = document->createElement("body", nullAtom, ASSERT_NO_EXCEPTION);
55    html->appendChild(body);
56
57    RefPtrWillBeRawPtr<ShadowRoot> shadowRootA = head->createShadowRoot(ASSERT_NO_EXCEPTION);
58    RefPtrWillBeRawPtr<ShadowRoot> shadowRootB = body->createShadowRoot(ASSERT_NO_EXCEPTION);
59
60    EXPECT_EQ(document.get(), shadowRootA->commonAncestorTreeScope(*shadowRootB));
61    EXPECT_EQ(document.get(), shadowRootB->commonAncestorTreeScope(*shadowRootA));
62}
63
64TEST(TreeScopeTest, CommonAncestorOfTreesAtDifferentDepths)
65{
66    //  document
67    //    / \    : Common ancestor is document.
68    //   Y   B
69    //  /
70    // A
71
72    RefPtrWillBeRawPtr<Document> document = Document::create();
73    RefPtrWillBeRawPtr<Element> html = document->createElement("html", nullAtom, ASSERT_NO_EXCEPTION);
74    document->appendChild(html, ASSERT_NO_EXCEPTION);
75    RefPtrWillBeRawPtr<Element> head = document->createElement("head", nullAtom, ASSERT_NO_EXCEPTION);
76    html->appendChild(head);
77    RefPtrWillBeRawPtr<Element> body = document->createElement("body", nullAtom, ASSERT_NO_EXCEPTION);
78    html->appendChild(body);
79
80    RefPtrWillBeRawPtr<ShadowRoot> shadowRootY = head->createShadowRoot(ASSERT_NO_EXCEPTION);
81    RefPtrWillBeRawPtr<ShadowRoot> shadowRootB = body->createShadowRoot(ASSERT_NO_EXCEPTION);
82
83    RefPtrWillBeRawPtr<Element> divInY = document->createElement("div", nullAtom, ASSERT_NO_EXCEPTION);
84    shadowRootY->appendChild(divInY);
85    RefPtrWillBeRawPtr<ShadowRoot> shadowRootA = divInY->createShadowRoot(ASSERT_NO_EXCEPTION);
86
87    EXPECT_EQ(document.get(), shadowRootA->commonAncestorTreeScope(*shadowRootB));
88    EXPECT_EQ(document.get(), shadowRootB->commonAncestorTreeScope(*shadowRootA));
89}
90
91TEST(TreeScopeTest, CommonAncestorOfTreesInDifferentDocuments)
92{
93    RefPtrWillBeRawPtr<Document> document1 = Document::create();
94    RefPtrWillBeRawPtr<Document> document2 = Document::create();
95    EXPECT_EQ(0, document1->commonAncestorTreeScope(*document2));
96    EXPECT_EQ(0, document2->commonAncestorTreeScope(*document1));
97}
98
99} // namespace
100