Home | History | Annotate | Download | only in dom 
      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 
     13 using namespace blink;
     14 
     15 namespace {
     16 
     17 TEST(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 
     28 TEST(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 
     43 TEST(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 
     64 TEST(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 
     91 TEST(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