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-rw-r--r--core/fpdfdoc/cpdf_nametree.cpp170
-rw-r--r--core/fpdfdoc/cpdf_nametree.h1
-rw-r--r--core/fpdfdoc/cpdf_nametree_unittest.cpp160
3 files changed, 272 insertions, 59 deletions
diff --git a/core/fpdfdoc/cpdf_nametree.cpp b/core/fpdfdoc/cpdf_nametree.cpp
index 4b4e7e81c2..dc5b6e526d 100644
--- a/core/fpdfdoc/cpdf_nametree.cpp
+++ b/core/fpdfdoc/cpdf_nametree.cpp
@@ -19,13 +19,28 @@ namespace {
const int nMaxRecursion = 32;
+std::pair<CFX_WideString, CFX_WideString> GetNodeLimitsMaybeSwap(
+ CPDF_Array* pLimits) {
+ ASSERT(pLimits);
+ CFX_WideString csLeft = pLimits->GetUnicodeTextAt(0);
+ CFX_WideString csRight = pLimits->GetUnicodeTextAt(1);
+ // If the lower limit is greater than the upper limit, swap them.
+ if (csLeft.Compare(csRight) > 0) {
+ pLimits->SetNewAt<CPDF_String>(0, csRight);
+ pLimits->SetNewAt<CPDF_String>(1, csLeft);
+ csLeft = pLimits->GetUnicodeTextAt(0);
+ csRight = pLimits->GetUnicodeTextAt(1);
+ }
+ return {csLeft, csRight};
+}
+
// Get the limit arrays that leaf array |pFind| is under in the tree with root
// |pNode|. |pLimits| will hold all the limit arrays from the leaf up to before
// the root. Return true if successful.
-bool GetNodeLimits(const CPDF_Dictionary* pNode,
- const CPDF_Array* pFind,
- int nLevel,
- std::vector<CPDF_Array*>* pLimits) {
+bool GetNodeAncestorsLimits(const CPDF_Dictionary* pNode,
+ const CPDF_Array* pFind,
+ int nLevel,
+ std::vector<CPDF_Array*>* pLimits) {
if (nLevel > nMaxRecursion)
return false;
@@ -43,7 +58,7 @@ bool GetNodeLimits(const CPDF_Dictionary* pNode,
if (!pKid)
continue;
- if (GetNodeLimits(pKid, pFind, nLevel + 1, pLimits)) {
+ if (GetNodeAncestorsLimits(pKid, pFind, nLevel + 1, pLimits)) {
pLimits->push_back(pNode->GetArrayFor("Limits"));
return true;
}
@@ -51,6 +66,88 @@ bool GetNodeLimits(const CPDF_Dictionary* pNode,
return false;
}
+// Upon the deletion of |csName| from leaf array |pFind|, update the ancestors
+// of |pFind|. Specifically, the limits of |pFind|'s ancestors will be updated
+// if needed, and any ancestors that are now empty will be removed.
+bool UpdateNodesAndLimitsUponDeletion(CPDF_Dictionary* pNode,
+ const CPDF_Array* pFind,
+ const CFX_WideString& csName,
+ int nLevel) {
+ if (nLevel > nMaxRecursion)
+ return false;
+
+ CPDF_Array* pLimits = pNode->GetArrayFor("Limits");
+ CFX_WideString csLeft;
+ CFX_WideString csRight;
+ if (pLimits)
+ std::tie(csLeft, csRight) = GetNodeLimitsMaybeSwap(pLimits);
+
+ CPDF_Array* pNames = pNode->GetArrayFor("Names");
+ if (pNames) {
+ if (pNames != pFind)
+ return false;
+ if (pNames->IsEmpty() || !pLimits)
+ return true;
+ if (csLeft != csName && csRight != csName)
+ return true;
+
+ // Since |csName| defines |pNode|'s limits, we need to loop through the
+ // names to find the new lower and upper limits.
+ CFX_WideString csNewLeft = csRight;
+ CFX_WideString csNewRight = csLeft;
+ for (size_t i = 0; i < pNames->GetCount() / 2; ++i) {
+ CFX_WideString wsName = pNames->GetUnicodeTextAt(i * 2);
+ if (wsName.Compare(csNewLeft) < 0)
+ csNewLeft = wsName;
+ if (wsName.Compare(csNewRight) > 0)
+ csNewRight = wsName;
+ }
+ pLimits->SetNewAt<CPDF_String>(0, csNewLeft);
+ pLimits->SetNewAt<CPDF_String>(1, csNewRight);
+ return true;
+ }
+
+ CPDF_Array* pKids = pNode->GetArrayFor("Kids");
+ if (!pKids)
+ return false;
+
+ // Loop through the kids to find the leaf array |pFind|.
+ for (size_t i = 0; i < pKids->GetCount(); ++i) {
+ CPDF_Dictionary* pKid = pKids->GetDictAt(i);
+ if (!pKid)
+ continue;
+ if (!UpdateNodesAndLimitsUponDeletion(pKid, pFind, csName, nLevel + 1))
+ continue;
+
+ // Remove this child node if it's empty.
+ if ((pKid->KeyExist("Names") && pKid->GetArrayFor("Names")->IsEmpty()) ||
+ (pKid->KeyExist("Kids") && pKid->GetArrayFor("Kids")->IsEmpty())) {
+ pKids->RemoveAt(i);
+ }
+ if (pKids->IsEmpty() || !pLimits)
+ return true;
+ if (csLeft != csName && csRight != csName)
+ return true;
+
+ // Since |csName| defines |pNode|'s limits, we need to loop through the
+ // kids to find the new lower and upper limits.
+ CFX_WideString csNewLeft = csRight;
+ CFX_WideString csNewRight = csLeft;
+ for (size_t j = 0; j < pKids->GetCount(); ++j) {
+ CPDF_Array* pKidLimits = pKids->GetDictAt(j)->GetArrayFor("Limits");
+ ASSERT(pKidLimits);
+ if (pKidLimits->GetUnicodeTextAt(0).Compare(csNewLeft) < 0)
+ csNewLeft = pKidLimits->GetUnicodeTextAt(0);
+ if (pKidLimits->GetUnicodeTextAt(1).Compare(csNewRight) > 0)
+ csNewRight = pKidLimits->GetUnicodeTextAt(1);
+ }
+ pLimits->SetNewAt<CPDF_String>(0, csNewLeft);
+ pLimits->SetNewAt<CPDF_String>(1, csNewRight);
+ return true;
+ }
+ return false;
+}
+
// Search for |csName| in the tree with root |pNode|. If successful, return the
// value that |csName| points to; |nIndex| will be the index of |csName|,
// |ppFind| will be the leaf array that |csName| is found in, and |pFindIndex|
@@ -69,15 +166,9 @@ CPDF_Object* SearchNameNode(CPDF_Dictionary* pNode,
CPDF_Array* pLimits = pNode->GetArrayFor("Limits");
CPDF_Array* pNames = pNode->GetArrayFor("Names");
if (pLimits) {
- CFX_WideString csLeft = pLimits->GetUnicodeTextAt(0);
- CFX_WideString csRight = pLimits->GetUnicodeTextAt(1);
- // If the lower limit is greater than the higher limit, swap them.
- if (csLeft.Compare(csRight) > 0) {
- pLimits->SetNewAt<CPDF_String>(0, csRight);
- pLimits->SetNewAt<CPDF_String>(1, csLeft);
- csLeft = pLimits->GetUnicodeTextAt(0);
- csRight = pLimits->GetUnicodeTextAt(1);
- }
+ CFX_WideString csLeft;
+ CFX_WideString csRight;
+ std::tie(csLeft, csRight) = GetNodeLimitsMaybeSwap(pLimits);
// Skip this node if the name to look for is smaller than its lower limit.
if (csName.Compare(csLeft) < 0)
return nullptr;
@@ -87,7 +178,6 @@ CPDF_Object* SearchNameNode(CPDF_Dictionary* pNode,
if (csName.Compare(csRight) > 0 && pNames) {
if (ppFind)
*ppFind = pNames;
-
if (pFindIndex)
*pFindIndex = pNames->GetCount() / 2 - 1;
@@ -103,13 +193,10 @@ CPDF_Object* SearchNameNode(CPDF_Dictionary* pNode,
int32_t iCompare = csValue.Compare(csName);
if (iCompare > 0)
break;
-
if (ppFind)
*ppFind = pNames;
-
if (pFindIndex)
*pFindIndex = i;
-
if (iCompare < 0)
continue;
@@ -139,14 +226,16 @@ CPDF_Object* SearchNameNode(CPDF_Dictionary* pNode,
}
// Get the key-value pair at |nIndex| in the tree with root |pNode|. If
-// successful, return the value object; |csName| will be the key, and |ppFind|
-// will be the leaf array that this pair is in.
+// successful, return the value object; |csName| will be the key, |ppFind|
+// will be the leaf array that this pair is in, and |pFindIndex| will be the
+// index of the pair in |pFind|.
CPDF_Object* SearchNameNode(CPDF_Dictionary* pNode,
size_t nIndex,
size_t& nCurIndex,
int nLevel,
CFX_WideString* csName,
- CPDF_Array** ppFind) {
+ CPDF_Array** ppFind,
+ int* pFindIndex) {
if (nLevel > nMaxRecursion)
return nullptr;
@@ -159,18 +248,23 @@ CPDF_Object* SearchNameNode(CPDF_Dictionary* pNode,
}
if (ppFind)
*ppFind = pNames;
+ if (pFindIndex)
+ *pFindIndex = nIndex - nCurIndex;
+
*csName = pNames->GetUnicodeTextAt((nIndex - nCurIndex) * 2);
return pNames->GetDirectObjectAt((nIndex - nCurIndex) * 2 + 1);
}
+
CPDF_Array* pKids = pNode->GetArrayFor("Kids");
if (!pKids)
return nullptr;
+
for (size_t i = 0; i < pKids->GetCount(); i++) {
CPDF_Dictionary* pKid = pKids->GetDictAt(i);
if (!pKid)
continue;
- CPDF_Object* pFound =
- SearchNameNode(pKid, nIndex, nCurIndex, nLevel + 1, csName, ppFind);
+ CPDF_Object* pFound = SearchNameNode(pKid, nIndex, nCurIndex, nLevel + 1,
+ csName, ppFind, pFindIndex);
if (pFound)
return pFound;
}
@@ -254,7 +348,7 @@ bool CPDF_NameTree::AddValueAndName(std::unique_ptr<CPDF_Object> pObj,
if (!pFind) {
size_t nCurIndex = 0;
CFX_WideString csName;
- SearchNameNode(m_pRoot.Get(), 0, nCurIndex, 0, &csName, &pFind);
+ SearchNameNode(m_pRoot.Get(), 0, nCurIndex, 0, &csName, &pFind, nullptr);
}
ASSERT(pFind);
@@ -268,7 +362,7 @@ bool CPDF_NameTree::AddValueAndName(std::unique_ptr<CPDF_Object> pObj,
// Expand the limits that the newly added name is under, if the name falls
// outside of the limits of its leaf array or any arrays above it.
std::vector<CPDF_Array*> pLimits;
- GetNodeLimits(m_pRoot.Get(), pFind, 0, &pLimits);
+ GetNodeAncestorsLimits(m_pRoot.Get(), pFind, 0, &pLimits);
for (auto* pLimit : pLimits) {
if (!pLimit)
continue;
@@ -282,6 +376,29 @@ bool CPDF_NameTree::AddValueAndName(std::unique_ptr<CPDF_Object> pObj,
return true;
}
+bool CPDF_NameTree::DeleteValueAndName(int nIndex) {
+ if (!m_pRoot)
+ return false;
+
+ size_t nCurIndex = 0;
+ CFX_WideString csName;
+ CPDF_Array* pFind = nullptr;
+ int nFindIndex = -1;
+ // Fail if the tree does not contain |nIndex|.
+ if (!SearchNameNode(m_pRoot.Get(), nIndex, nCurIndex, 0, &csName, &pFind,
+ &nFindIndex)) {
+ return false;
+ }
+
+ // Remove the name and the object from the leaf array |pFind|.
+ pFind->RemoveAt(nFindIndex * 2);
+ pFind->RemoveAt(nFindIndex * 2);
+
+ // Delete empty nodes and update the limits of |pFind|'s ancestors as needed.
+ UpdateNodesAndLimitsUponDeletion(m_pRoot.Get(), pFind, csName, 0);
+ return true;
+}
+
CPDF_Object* CPDF_NameTree::LookupValueAndName(int nIndex,
CFX_WideString* csName) const {
csName->clear();
@@ -289,7 +406,8 @@ CPDF_Object* CPDF_NameTree::LookupValueAndName(int nIndex,
return nullptr;
size_t nCurIndex = 0;
- return SearchNameNode(m_pRoot.Get(), nIndex, nCurIndex, 0, csName, nullptr);
+ return SearchNameNode(m_pRoot.Get(), nIndex, nCurIndex, 0, csName, nullptr,
+ nullptr);
}
CPDF_Object* CPDF_NameTree::LookupValue(const CFX_WideString& csName) const {
diff --git a/core/fpdfdoc/cpdf_nametree.h b/core/fpdfdoc/cpdf_nametree.h
index 28239233ea..8c26c9380e 100644
--- a/core/fpdfdoc/cpdf_nametree.h
+++ b/core/fpdfdoc/cpdf_nametree.h
@@ -25,6 +25,7 @@ class CPDF_NameTree {
bool AddValueAndName(std::unique_ptr<CPDF_Object> pObj,
const CFX_WideString& name);
+ bool DeleteValueAndName(int nIndex);
CPDF_Object* LookupValueAndName(int nIndex, CFX_WideString* csName) const;
CPDF_Object* LookupValue(const CFX_WideString& csName) const;
diff --git a/core/fpdfdoc/cpdf_nametree_unittest.cpp b/core/fpdfdoc/cpdf_nametree_unittest.cpp
index 4842f06a8e..e6e188a72c 100644
--- a/core/fpdfdoc/cpdf_nametree_unittest.cpp
+++ b/core/fpdfdoc/cpdf_nametree_unittest.cpp
@@ -41,6 +41,37 @@ void CheckLimitsArray(CPDF_Dictionary* pNode,
EXPECT_STREQ(greatest, pLimits->GetStringAt(1).c_str());
}
+void FillNameTreeDict(CPDF_Dictionary* pRootDict) {
+ CPDF_Array* pKids = pRootDict->SetNewFor<CPDF_Array>("Kids");
+ CPDF_Dictionary* pKid1 = pKids->AddNew<CPDF_Dictionary>();
+
+ // Make the lower and upper limit out of order on purpose.
+ AddLimitsArray(pKid1, "9.txt", "1.txt");
+ pKids = pKid1->SetNewFor<CPDF_Array>("Kids");
+ CPDF_Dictionary* pKid2 = pKids->AddNew<CPDF_Dictionary>();
+ CPDF_Dictionary* pKid3 = pKids->AddNew<CPDF_Dictionary>();
+
+ AddLimitsArray(pKid2, "1.txt", "5.txt");
+ pKids = pKid2->SetNewFor<CPDF_Array>("Kids");
+ CPDF_Dictionary* pKid4 = pKids->AddNew<CPDF_Dictionary>();
+ CPDF_Dictionary* pKid5 = pKids->AddNew<CPDF_Dictionary>();
+
+ AddLimitsArray(pKid3, "9.txt", "9.txt");
+ CPDF_Array* pNames = pKid3->SetNewFor<CPDF_Array>("Names");
+ AddNameKeyValue(pNames, "9.txt", 999);
+
+ // Make the lower and upper limit out of order on purpose.
+ AddLimitsArray(pKid4, "2.txt", "1.txt");
+ pNames = pKid4->SetNewFor<CPDF_Array>("Names");
+ AddNameKeyValue(pNames, "1.txt", 111);
+ AddNameKeyValue(pNames, "2.txt", 222);
+
+ AddLimitsArray(pKid5, "3.txt", "5.txt");
+ pNames = pKid5->SetNewFor<CPDF_Array>("Names");
+ AddNameKeyValue(pNames, "3.txt", 333);
+ AddNameKeyValue(pNames, "5.txt", 555);
+}
+
} // namespace
TEST(cpdf_nametree, GetUnicodeNameWithBOM) {
@@ -106,33 +137,7 @@ TEST(cpdf_nametree, AddIntoNames) {
TEST(cpdf_nametree, AddIntoKids) {
// Set up a name tree with five nodes of three levels.
auto pRootDict = pdfium::MakeUnique<CPDF_Dictionary>();
- CPDF_Array* pKids = pRootDict->SetNewFor<CPDF_Array>("Kids");
- CPDF_Dictionary* pKid1 = pKids->AddNew<CPDF_Dictionary>();
-
- AddLimitsArray(pKid1, "1.txt", "9.txt");
- pKids = pKid1->SetNewFor<CPDF_Array>("Kids");
- CPDF_Dictionary* pKid2 = pKids->AddNew<CPDF_Dictionary>();
- CPDF_Dictionary* pKid3 = pKids->AddNew<CPDF_Dictionary>();
-
- AddLimitsArray(pKid2, "1.txt", "5.txt");
- pKids = pKid2->SetNewFor<CPDF_Array>("Kids");
- CPDF_Dictionary* pKid4 = pKids->AddNew<CPDF_Dictionary>();
- CPDF_Dictionary* pKid5 = pKids->AddNew<CPDF_Dictionary>();
-
- AddLimitsArray(pKid3, "9.txt", "9.txt");
- CPDF_Array* pNames = pKid3->SetNewFor<CPDF_Array>("Names");
- AddNameKeyValue(pNames, "9.txt", 999);
-
- AddLimitsArray(pKid4, "1.txt", "2.txt");
- pNames = pKid4->SetNewFor<CPDF_Array>("Names");
- AddNameKeyValue(pNames, "1.txt", 111);
- AddNameKeyValue(pNames, "2.txt", 222);
-
- AddLimitsArray(pKid5, "3.txt", "5.txt");
- pNames = pKid5->SetNewFor<CPDF_Array>("Names");
- AddNameKeyValue(pNames, "3.txt", 333);
- AddNameKeyValue(pNames, "5.txt", 555);
-
+ FillNameTreeDict(pRootDict.get());
CPDF_NameTree nameTree(pRootDict.get());
// Check that adding an existing name would fail.
@@ -164,25 +169,26 @@ TEST(cpdf_nametree, AddIntoKids) {
EXPECT_EQ(-5, nameTree.LookupValue(L"0.txt")->GetInteger());
// Check that the node on the first level has the expected limits.
- pKid1 = nameTree.GetRoot()->GetArrayFor("Kids")->GetDictAt(0);
+ CPDF_Dictionary* pKid1 =
+ nameTree.GetRoot()->GetArrayFor("Kids")->GetDictAt(0);
ASSERT_TRUE(pKid1);
CheckLimitsArray(pKid1, "0.txt", "99.txt");
// Check that the nodes on the second level has the expected limits and names.
- pKid2 = pKid1->GetArrayFor("Kids")->GetDictAt(0);
+ CPDF_Dictionary* pKid2 = pKid1->GetArrayFor("Kids")->GetDictAt(0);
ASSERT_TRUE(pKid2);
CheckLimitsArray(pKid2, "0.txt", "6.txt");
- pKid3 = pKid1->GetArrayFor("Kids")->GetDictAt(1);
+ CPDF_Dictionary* pKid3 = pKid1->GetArrayFor("Kids")->GetDictAt(1);
ASSERT_TRUE(pKid3);
CheckLimitsArray(pKid3, "9.txt", "99.txt");
- pNames = pKid3->GetArrayFor("Names");
+ CPDF_Array* pNames = pKid3->GetArrayFor("Names");
ASSERT_TRUE(pNames);
CheckNameKeyValue(pNames, 0, "9.txt", 999);
CheckNameKeyValue(pNames, 1, "99.txt", 99);
// Check that the nodes on the third level has the expected limits and names.
- pKid4 = pKid2->GetArrayFor("Kids")->GetDictAt(0);
+ CPDF_Dictionary* pKid4 = pKid2->GetArrayFor("Kids")->GetDictAt(0);
ASSERT_TRUE(pKid4);
CheckLimitsArray(pKid4, "0.txt", "2.txt");
pNames = pKid4->GetArrayFor("Names");
@@ -191,7 +197,7 @@ TEST(cpdf_nametree, AddIntoKids) {
CheckNameKeyValue(pNames, 1, "1.txt", 111);
CheckNameKeyValue(pNames, 2, "2.txt", 222);
- pKid5 = pKid2->GetArrayFor("Kids")->GetDictAt(1);
+ CPDF_Dictionary* pKid5 = pKid2->GetArrayFor("Kids")->GetDictAt(1);
ASSERT_TRUE(pKid5);
CheckLimitsArray(pKid5, "3.txt", "6.txt");
pNames = pKid5->GetArrayFor("Names");
@@ -201,3 +207,91 @@ TEST(cpdf_nametree, AddIntoKids) {
CheckNameKeyValue(pNames, 2, "5.txt", 555);
CheckNameKeyValue(pNames, 3, "6.txt", 666);
}
+
+TEST(cpdf_nametree, DeleteFromKids) {
+ // Set up a name tree with five nodes of three levels.
+ auto pRootDict = pdfium::MakeUnique<CPDF_Dictionary>();
+ FillNameTreeDict(pRootDict.get());
+ CPDF_NameTree nameTree(pRootDict.get());
+
+ // Retrieve the kid dictionaries.
+ CPDF_Dictionary* pKid1 =
+ nameTree.GetRoot()->GetArrayFor("Kids")->GetDictAt(0);
+ ASSERT_TRUE(pKid1);
+ CPDF_Dictionary* pKid2 = pKid1->GetArrayFor("Kids")->GetDictAt(0);
+ ASSERT_TRUE(pKid2);
+ CPDF_Dictionary* pKid3 = pKid1->GetArrayFor("Kids")->GetDictAt(1);
+ ASSERT_TRUE(pKid3);
+ CPDF_Dictionary* pKid4 = pKid2->GetArrayFor("Kids")->GetDictAt(0);
+ ASSERT_TRUE(pKid4);
+ CPDF_Dictionary* pKid5 = pKid2->GetArrayFor("Kids")->GetDictAt(1);
+ ASSERT_TRUE(pKid5);
+
+ // Check that deleting an out-of-bound index would fail.
+ EXPECT_FALSE(nameTree.DeleteValueAndName(5));
+
+ // Delete the name "9.txt", and check that its node gets deleted and its
+ // parent node's limits get updated.
+ CFX_WideString csName;
+ ASSERT_TRUE(nameTree.LookupValue(L"9.txt"));
+ EXPECT_EQ(999, nameTree.LookupValue(L"9.txt")->GetInteger());
+ EXPECT_TRUE(nameTree.LookupValueAndName(4, &csName));
+ EXPECT_STREQ(L"9.txt", csName.c_str());
+ EXPECT_EQ(2u, pKid1->GetArrayFor("Kids")->GetCount());
+ EXPECT_TRUE(nameTree.DeleteValueAndName(4));
+ EXPECT_EQ(1u, pKid1->GetArrayFor("Kids")->GetCount());
+ CheckLimitsArray(pKid1, "1.txt", "5.txt");
+
+ // Delete the name "2.txt", and check that its node does not get deleted, its
+ // node's limits get updated, and no other limits get updated.
+ ASSERT_TRUE(nameTree.LookupValue(L"2.txt"));
+ EXPECT_EQ(222, nameTree.LookupValue(L"2.txt")->GetInteger());
+ EXPECT_TRUE(nameTree.LookupValueAndName(1, &csName));
+ EXPECT_STREQ(L"2.txt", csName.c_str());
+ EXPECT_EQ(4u, pKid4->GetArrayFor("Names")->GetCount());
+ EXPECT_TRUE(nameTree.DeleteValueAndName(1));
+ EXPECT_EQ(2u, pKid4->GetArrayFor("Names")->GetCount());
+ CheckLimitsArray(pKid4, "1.txt", "1.txt");
+ CheckLimitsArray(pKid2, "1.txt", "5.txt");
+ CheckLimitsArray(pKid1, "1.txt", "5.txt");
+
+ // Delete the name "1.txt", and check that its node gets deleted, and its
+ // parent's and gradparent's limits get updated.
+ ASSERT_TRUE(nameTree.LookupValue(L"1.txt"));
+ EXPECT_EQ(111, nameTree.LookupValue(L"1.txt")->GetInteger());
+ EXPECT_TRUE(nameTree.LookupValueAndName(0, &csName));
+ EXPECT_STREQ(L"1.txt", csName.c_str());
+ EXPECT_EQ(2u, pKid2->GetArrayFor("Kids")->GetCount());
+ EXPECT_TRUE(nameTree.DeleteValueAndName(0));
+ EXPECT_EQ(1u, pKid2->GetArrayFor("Kids")->GetCount());
+ CheckLimitsArray(pKid2, "3.txt", "5.txt");
+ CheckLimitsArray(pKid1, "3.txt", "5.txt");
+
+ // Delete the name "3.txt", and check that its node does not get deleted, and
+ // its node's, its parent's, and its grandparent's limits get updated.
+ ASSERT_TRUE(nameTree.LookupValue(L"3.txt"));
+ EXPECT_EQ(333, nameTree.LookupValue(L"3.txt")->GetInteger());
+ EXPECT_TRUE(nameTree.LookupValueAndName(0, &csName));
+ EXPECT_STREQ(L"3.txt", csName.c_str());
+ EXPECT_EQ(4u, pKid5->GetArrayFor("Names")->GetCount());
+ EXPECT_TRUE(nameTree.DeleteValueAndName(0));
+ EXPECT_EQ(2u, pKid5->GetArrayFor("Names")->GetCount());
+ CheckLimitsArray(pKid5, "5.txt", "5.txt");
+ CheckLimitsArray(pKid2, "5.txt", "5.txt");
+ CheckLimitsArray(pKid1, "5.txt", "5.txt");
+
+ // Delete the name "5.txt", and check that all nodes in the tree get deleted
+ // since they are now all empty.
+ ASSERT_TRUE(nameTree.LookupValue(L"5.txt"));
+ EXPECT_EQ(555, nameTree.LookupValue(L"5.txt")->GetInteger());
+ EXPECT_TRUE(nameTree.LookupValueAndName(0, &csName));
+ EXPECT_STREQ(L"5.txt", csName.c_str());
+ EXPECT_EQ(1u, nameTree.GetRoot()->GetArrayFor("Kids")->GetCount());
+ EXPECT_TRUE(nameTree.DeleteValueAndName(0));
+ EXPECT_EQ(0u, nameTree.GetRoot()->GetArrayFor("Kids")->GetCount());
+
+ // Check that the tree is now empty.
+ EXPECT_EQ(0u, nameTree.GetCount());
+ EXPECT_FALSE(nameTree.LookupValueAndName(0, &csName));
+ EXPECT_FALSE(nameTree.DeleteValueAndName(0));
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-01 19:15:32 +0000