| // Copyright 2011 the V8 project authors. All rights reserved. |
| // |
| // Tests for heap profiler |
| |
| #include <ctype.h> |
| |
| #include "v8.h" |
| |
| #include "cctest.h" |
| #include "hashmap.h" |
| #include "heap-profiler.h" |
| #include "snapshot.h" |
| #include "debug.h" |
| #include "utils-inl.h" |
| #include "../include/v8-profiler.h" |
| |
| namespace { |
| |
| class NamedEntriesDetector { |
| public: |
| NamedEntriesDetector() |
| : has_A2(false), has_B2(false), has_C2(false) { |
| } |
| |
| void CheckEntry(i::HeapEntry* entry) { |
| if (strcmp(entry->name(), "A2") == 0) has_A2 = true; |
| if (strcmp(entry->name(), "B2") == 0) has_B2 = true; |
| if (strcmp(entry->name(), "C2") == 0) has_C2 = true; |
| } |
| |
| static bool AddressesMatch(void* key1, void* key2) { |
| return key1 == key2; |
| } |
| |
| void CheckAllReachables(i::HeapEntry* root) { |
| i::HashMap visited(AddressesMatch); |
| i::List<i::HeapEntry*> list(10); |
| list.Add(root); |
| CheckEntry(root); |
| while (!list.is_empty()) { |
| i::HeapEntry* entry = list.RemoveLast(); |
| i::Vector<i::HeapGraphEdge*> children = entry->children(); |
| for (int i = 0; i < children.length(); ++i) { |
| if (children[i]->type() == i::HeapGraphEdge::kShortcut) continue; |
| i::HeapEntry* child = children[i]->to(); |
| i::HashMap::Entry* entry = visited.Lookup( |
| reinterpret_cast<void*>(child), |
| static_cast<uint32_t>(reinterpret_cast<uintptr_t>(child)), |
| true); |
| if (entry->value) |
| continue; |
| entry->value = reinterpret_cast<void*>(1); |
| list.Add(child); |
| CheckEntry(child); |
| } |
| } |
| } |
| |
| bool has_A2; |
| bool has_B2; |
| bool has_C2; |
| }; |
| |
| } // namespace |
| |
| |
| static const v8::HeapGraphNode* GetGlobalObject( |
| const v8::HeapSnapshot* snapshot) { |
| CHECK_EQ(2, snapshot->GetRoot()->GetChildrenCount()); |
| const v8::HeapGraphNode* global_obj = |
| snapshot->GetRoot()->GetChild(0)->GetToNode(); |
| CHECK_EQ(0, strncmp("Object", const_cast<i::HeapEntry*>( |
| reinterpret_cast<const i::HeapEntry*>(global_obj))->name(), 6)); |
| return global_obj; |
| } |
| |
| |
| static const v8::HeapGraphNode* GetProperty(const v8::HeapGraphNode* node, |
| v8::HeapGraphEdge::Type type, |
| const char* name) { |
| for (int i = 0, count = node->GetChildrenCount(); i < count; ++i) { |
| const v8::HeapGraphEdge* prop = node->GetChild(i); |
| v8::String::AsciiValue prop_name(prop->GetName()); |
| if (prop->GetType() == type && strcmp(name, *prop_name) == 0) |
| return prop->GetToNode(); |
| } |
| return NULL; |
| } |
| |
| |
| static bool HasString(const v8::HeapGraphNode* node, const char* contents) { |
| for (int i = 0, count = node->GetChildrenCount(); i < count; ++i) { |
| const v8::HeapGraphEdge* prop = node->GetChild(i); |
| const v8::HeapGraphNode* node = prop->GetToNode(); |
| if (node->GetType() == v8::HeapGraphNode::kString) { |
| v8::String::AsciiValue node_name(node->GetName()); |
| if (strcmp(contents, *node_name) == 0) return true; |
| } |
| } |
| return false; |
| } |
| |
| |
| TEST(HeapSnapshot) { |
| v8::HandleScope scope; |
| LocalContext env2; |
| |
| CompileRun( |
| "function A2() {}\n" |
| "function B2(x) { return function() { return typeof x; }; }\n" |
| "function C2(x) { this.x1 = x; this.x2 = x; this[1] = x; }\n" |
| "var a2 = new A2();\n" |
| "var b2_1 = new B2(a2), b2_2 = new B2(a2);\n" |
| "var c2 = new C2(a2);"); |
| const v8::HeapSnapshot* snapshot_env2 = |
| v8::HeapProfiler::TakeSnapshot(v8_str("env2")); |
| const v8::HeapGraphNode* global_env2 = GetGlobalObject(snapshot_env2); |
| |
| // Verify, that JS global object of env2 has '..2' properties. |
| const v8::HeapGraphNode* a2_node = |
| GetProperty(global_env2, v8::HeapGraphEdge::kProperty, "a2"); |
| CHECK_NE(NULL, a2_node); |
| CHECK_NE( |
| NULL, GetProperty(global_env2, v8::HeapGraphEdge::kProperty, "b2_1")); |
| CHECK_NE( |
| NULL, GetProperty(global_env2, v8::HeapGraphEdge::kProperty, "b2_2")); |
| CHECK_NE(NULL, GetProperty(global_env2, v8::HeapGraphEdge::kProperty, "c2")); |
| |
| NamedEntriesDetector det; |
| det.CheckAllReachables(const_cast<i::HeapEntry*>( |
| reinterpret_cast<const i::HeapEntry*>(global_env2))); |
| CHECK(det.has_A2); |
| CHECK(det.has_B2); |
| CHECK(det.has_C2); |
| } |
| |
| |
| TEST(HeapSnapshotObjectSizes) { |
| v8::HandleScope scope; |
| LocalContext env; |
| |
| // -a-> X1 --a |
| // x -b-> X2 <-| |
| CompileRun( |
| "function X(a, b) { this.a = a; this.b = b; }\n" |
| "x = new X(new X(), new X());\n" |
| "dummy = new X();\n" |
| "(function() { x.a.a = x.b; })();"); |
| const v8::HeapSnapshot* snapshot = |
| v8::HeapProfiler::TakeSnapshot(v8_str("sizes")); |
| const v8::HeapGraphNode* global = GetGlobalObject(snapshot); |
| const v8::HeapGraphNode* x = |
| GetProperty(global, v8::HeapGraphEdge::kProperty, "x"); |
| CHECK_NE(NULL, x); |
| const v8::HeapGraphNode* x1 = |
| GetProperty(x, v8::HeapGraphEdge::kProperty, "a"); |
| CHECK_NE(NULL, x1); |
| const v8::HeapGraphNode* x2 = |
| GetProperty(x, v8::HeapGraphEdge::kProperty, "b"); |
| CHECK_NE(NULL, x2); |
| |
| // Test sizes. |
| CHECK_NE(0, x->GetSelfSize()); |
| CHECK_NE(0, x1->GetSelfSize()); |
| CHECK_NE(0, x2->GetSelfSize()); |
| } |
| |
| |
| TEST(BoundFunctionInSnapshot) { |
| v8::HandleScope scope; |
| LocalContext env; |
| CompileRun( |
| "function myFunction(a, b) { this.a = a; this.b = b; }\n" |
| "function AAAAA() {}\n" |
| "boundFunction = myFunction.bind(new AAAAA(), 20, new Number(12)); \n"); |
| const v8::HeapSnapshot* snapshot = |
| v8::HeapProfiler::TakeSnapshot(v8_str("sizes")); |
| const v8::HeapGraphNode* global = GetGlobalObject(snapshot); |
| const v8::HeapGraphNode* f = |
| GetProperty(global, v8::HeapGraphEdge::kProperty, "boundFunction"); |
| CHECK(f); |
| CHECK_EQ(v8::String::New("native_bind"), f->GetName()); |
| const v8::HeapGraphNode* bindings = |
| GetProperty(f, v8::HeapGraphEdge::kInternal, "bindings"); |
| CHECK_NE(NULL, bindings); |
| CHECK_EQ(v8::HeapGraphNode::kArray, bindings->GetType()); |
| CHECK_EQ(4, bindings->GetChildrenCount()); |
| |
| const v8::HeapGraphNode* bound_this = GetProperty( |
| f, v8::HeapGraphEdge::kShortcut, "bound_this"); |
| CHECK(bound_this); |
| CHECK_EQ(v8::HeapGraphNode::kObject, bound_this->GetType()); |
| |
| const v8::HeapGraphNode* bound_function = GetProperty( |
| f, v8::HeapGraphEdge::kShortcut, "bound_function"); |
| CHECK(bound_function); |
| CHECK_EQ(v8::HeapGraphNode::kClosure, bound_function->GetType()); |
| |
| const v8::HeapGraphNode* bound_argument = GetProperty( |
| f, v8::HeapGraphEdge::kShortcut, "bound_argument_1"); |
| CHECK(bound_argument); |
| CHECK_EQ(v8::HeapGraphNode::kObject, bound_argument->GetType()); |
| } |
| |
| |
| TEST(HeapSnapshotEntryChildren) { |
| v8::HandleScope scope; |
| LocalContext env; |
| |
| CompileRun( |
| "function A() { }\n" |
| "a = new A;"); |
| const v8::HeapSnapshot* snapshot = |
| v8::HeapProfiler::TakeSnapshot(v8_str("children")); |
| const v8::HeapGraphNode* global = GetGlobalObject(snapshot); |
| for (int i = 0, count = global->GetChildrenCount(); i < count; ++i) { |
| const v8::HeapGraphEdge* prop = global->GetChild(i); |
| CHECK_EQ(global, prop->GetFromNode()); |
| } |
| const v8::HeapGraphNode* a = |
| GetProperty(global, v8::HeapGraphEdge::kProperty, "a"); |
| CHECK_NE(NULL, a); |
| for (int i = 0, count = a->GetChildrenCount(); i < count; ++i) { |
| const v8::HeapGraphEdge* prop = a->GetChild(i); |
| CHECK_EQ(a, prop->GetFromNode()); |
| } |
| } |
| |
| |
| TEST(HeapSnapshotCodeObjects) { |
| v8::HandleScope scope; |
| LocalContext env; |
| |
| CompileRun( |
| "function lazy(x) { return x - 1; }\n" |
| "function compiled(x) { return x + 1; }\n" |
| "var anonymous = (function() { return function() { return 0; } })();\n" |
| "compiled(1)"); |
| const v8::HeapSnapshot* snapshot = |
| v8::HeapProfiler::TakeSnapshot(v8_str("code")); |
| |
| const v8::HeapGraphNode* global = GetGlobalObject(snapshot); |
| const v8::HeapGraphNode* compiled = |
| GetProperty(global, v8::HeapGraphEdge::kProperty, "compiled"); |
| CHECK_NE(NULL, compiled); |
| CHECK_EQ(v8::HeapGraphNode::kClosure, compiled->GetType()); |
| const v8::HeapGraphNode* lazy = |
| GetProperty(global, v8::HeapGraphEdge::kProperty, "lazy"); |
| CHECK_NE(NULL, lazy); |
| CHECK_EQ(v8::HeapGraphNode::kClosure, lazy->GetType()); |
| const v8::HeapGraphNode* anonymous = |
| GetProperty(global, v8::HeapGraphEdge::kProperty, "anonymous"); |
| CHECK_NE(NULL, anonymous); |
| CHECK_EQ(v8::HeapGraphNode::kClosure, anonymous->GetType()); |
| v8::String::AsciiValue anonymous_name(anonymous->GetName()); |
| CHECK_EQ("", *anonymous_name); |
| |
| // Find references to code. |
| const v8::HeapGraphNode* compiled_code = |
| GetProperty(compiled, v8::HeapGraphEdge::kInternal, "shared"); |
| CHECK_NE(NULL, compiled_code); |
| const v8::HeapGraphNode* lazy_code = |
| GetProperty(lazy, v8::HeapGraphEdge::kInternal, "shared"); |
| CHECK_NE(NULL, lazy_code); |
| |
| // Verify that non-compiled code doesn't contain references to "x" |
| // literal, while compiled code does. The scope info is stored in FixedArray |
| // objects attached to the SharedFunctionInfo. |
| bool compiled_references_x = false, lazy_references_x = false; |
| for (int i = 0, count = compiled_code->GetChildrenCount(); i < count; ++i) { |
| const v8::HeapGraphEdge* prop = compiled_code->GetChild(i); |
| const v8::HeapGraphNode* node = prop->GetToNode(); |
| if (node->GetType() == v8::HeapGraphNode::kArray) { |
| if (HasString(node, "x")) { |
| compiled_references_x = true; |
| break; |
| } |
| } |
| } |
| for (int i = 0, count = lazy_code->GetChildrenCount(); i < count; ++i) { |
| const v8::HeapGraphEdge* prop = lazy_code->GetChild(i); |
| const v8::HeapGraphNode* node = prop->GetToNode(); |
| if (node->GetType() == v8::HeapGraphNode::kArray) { |
| if (HasString(node, "x")) { |
| lazy_references_x = true; |
| break; |
| } |
| } |
| } |
| CHECK(compiled_references_x); |
| CHECK(!lazy_references_x); |
| } |
| |
| |
| TEST(HeapSnapshotHeapNumbers) { |
| v8::HandleScope scope; |
| LocalContext env; |
| CompileRun( |
| "a = 1; // a is Smi\n" |
| "b = 2.5; // b is HeapNumber"); |
| const v8::HeapSnapshot* snapshot = |
| v8::HeapProfiler::TakeSnapshot(v8_str("numbers")); |
| const v8::HeapGraphNode* global = GetGlobalObject(snapshot); |
| CHECK_EQ(NULL, GetProperty(global, v8::HeapGraphEdge::kProperty, "a")); |
| const v8::HeapGraphNode* b = |
| GetProperty(global, v8::HeapGraphEdge::kProperty, "b"); |
| CHECK_NE(NULL, b); |
| CHECK_EQ(v8::HeapGraphNode::kHeapNumber, b->GetType()); |
| } |
| |
| TEST(HeapSnapshotSlicedString) { |
| v8::HandleScope scope; |
| LocalContext env; |
| CompileRun( |
| "parent_string = \"123456789.123456789.123456789.123456789.123456789." |
| "123456789.123456789.123456789.123456789.123456789." |
| "123456789.123456789.123456789.123456789.123456789." |
| "123456789.123456789.123456789.123456789.123456789.\";" |
| "child_string = parent_string.slice(100);"); |
| const v8::HeapSnapshot* snapshot = |
| v8::HeapProfiler::TakeSnapshot(v8_str("strings")); |
| const v8::HeapGraphNode* global = GetGlobalObject(snapshot); |
| const v8::HeapGraphNode* parent_string = |
| GetProperty(global, v8::HeapGraphEdge::kProperty, "parent_string"); |
| CHECK_NE(NULL, parent_string); |
| const v8::HeapGraphNode* child_string = |
| GetProperty(global, v8::HeapGraphEdge::kProperty, "child_string"); |
| CHECK_NE(NULL, child_string); |
| const v8::HeapGraphNode* parent = |
| GetProperty(child_string, v8::HeapGraphEdge::kInternal, "parent"); |
| CHECK_EQ(parent_string, parent); |
| } |
| |
| TEST(HeapSnapshotInternalReferences) { |
| v8::HandleScope scope; |
| v8::Local<v8::ObjectTemplate> global_template = v8::ObjectTemplate::New(); |
| global_template->SetInternalFieldCount(2); |
| LocalContext env(NULL, global_template); |
| v8::Handle<v8::Object> global_proxy = env->Global(); |
| v8::Handle<v8::Object> global = global_proxy->GetPrototype().As<v8::Object>(); |
| CHECK_EQ(2, global->InternalFieldCount()); |
| v8::Local<v8::Object> obj = v8::Object::New(); |
| global->SetInternalField(0, v8_num(17)); |
| global->SetInternalField(1, obj); |
| const v8::HeapSnapshot* snapshot = |
| v8::HeapProfiler::TakeSnapshot(v8_str("internals")); |
| const v8::HeapGraphNode* global_node = GetGlobalObject(snapshot); |
| // The first reference will not present, because it's a Smi. |
| CHECK_EQ(NULL, GetProperty(global_node, v8::HeapGraphEdge::kInternal, "0")); |
| // The second reference is to an object. |
| CHECK_NE(NULL, GetProperty(global_node, v8::HeapGraphEdge::kInternal, "1")); |
| } |
| |
| |
| // Trying to introduce a check helper for uint32_t causes many |
| // overloading ambiguities, so it seems easier just to cast |
| // them to a signed type. |
| #define CHECK_EQ_SNAPSHOT_OBJECT_ID(a, b) \ |
| CHECK_EQ(static_cast<int32_t>(a), static_cast<int32_t>(b)) |
| #define CHECK_NE_SNAPSHOT_OBJECT_ID(a, b) \ |
| CHECK((a) != (b)) // NOLINT |
| |
| TEST(HeapEntryIdsAndArrayShift) { |
| v8::HandleScope scope; |
| LocalContext env; |
| |
| CompileRun( |
| "function AnObject() {\n" |
| " this.first = 'first';\n" |
| " this.second = 'second';\n" |
| "}\n" |
| "var a = new Array();\n" |
| "for (var i = 0; i < 10; ++i)\n" |
| " a.push(new AnObject());\n"); |
| const v8::HeapSnapshot* snapshot1 = |
| v8::HeapProfiler::TakeSnapshot(v8_str("s1")); |
| |
| CompileRun( |
| "for (var i = 0; i < 1; ++i)\n" |
| " a.shift();\n"); |
| |
| HEAP->CollectAllGarbage(i::Heap::kNoGCFlags); |
| |
| const v8::HeapSnapshot* snapshot2 = |
| v8::HeapProfiler::TakeSnapshot(v8_str("s2")); |
| |
| const v8::HeapGraphNode* global1 = GetGlobalObject(snapshot1); |
| const v8::HeapGraphNode* global2 = GetGlobalObject(snapshot2); |
| CHECK_NE_SNAPSHOT_OBJECT_ID(0, global1->GetId()); |
| CHECK_EQ_SNAPSHOT_OBJECT_ID(global1->GetId(), global2->GetId()); |
| |
| const v8::HeapGraphNode* a1 = |
| GetProperty(global1, v8::HeapGraphEdge::kProperty, "a"); |
| CHECK_NE(NULL, a1); |
| const v8::HeapGraphNode* k1 = |
| GetProperty(a1, v8::HeapGraphEdge::kInternal, "elements"); |
| CHECK_NE(NULL, k1); |
| const v8::HeapGraphNode* a2 = |
| GetProperty(global2, v8::HeapGraphEdge::kProperty, "a"); |
| CHECK_NE(NULL, a2); |
| const v8::HeapGraphNode* k2 = |
| GetProperty(a2, v8::HeapGraphEdge::kInternal, "elements"); |
| CHECK_NE(NULL, k2); |
| |
| CHECK_EQ_SNAPSHOT_OBJECT_ID(a1->GetId(), a2->GetId()); |
| CHECK_EQ_SNAPSHOT_OBJECT_ID(k1->GetId(), k2->GetId()); |
| } |
| |
| TEST(HeapEntryIdsAndGC) { |
| v8::HandleScope scope; |
| LocalContext env; |
| |
| CompileRun( |
| "function A() {}\n" |
| "function B(x) { this.x = x; }\n" |
| "var a = new A();\n" |
| "var b = new B(a);"); |
| v8::Local<v8::String> s1_str = v8_str("s1"); |
| v8::Local<v8::String> s2_str = v8_str("s2"); |
| const v8::HeapSnapshot* snapshot1 = |
| v8::HeapProfiler::TakeSnapshot(s1_str); |
| |
| HEAP->CollectAllGarbage(i::Heap::kNoGCFlags); |
| |
| const v8::HeapSnapshot* snapshot2 = |
| v8::HeapProfiler::TakeSnapshot(s2_str); |
| |
| CHECK_GT(snapshot1->GetMaxSnapshotJSObjectId(), 7000); |
| CHECK(snapshot1->GetMaxSnapshotJSObjectId() <= |
| snapshot2->GetMaxSnapshotJSObjectId()); |
| |
| const v8::HeapGraphNode* global1 = GetGlobalObject(snapshot1); |
| const v8::HeapGraphNode* global2 = GetGlobalObject(snapshot2); |
| CHECK_NE_SNAPSHOT_OBJECT_ID(0, global1->GetId()); |
| CHECK_EQ_SNAPSHOT_OBJECT_ID(global1->GetId(), global2->GetId()); |
| const v8::HeapGraphNode* A1 = |
| GetProperty(global1, v8::HeapGraphEdge::kProperty, "A"); |
| CHECK_NE(NULL, A1); |
| const v8::HeapGraphNode* A2 = |
| GetProperty(global2, v8::HeapGraphEdge::kProperty, "A"); |
| CHECK_NE(NULL, A2); |
| CHECK_NE_SNAPSHOT_OBJECT_ID(0, A1->GetId()); |
| CHECK_EQ_SNAPSHOT_OBJECT_ID(A1->GetId(), A2->GetId()); |
| const v8::HeapGraphNode* B1 = |
| GetProperty(global1, v8::HeapGraphEdge::kProperty, "B"); |
| CHECK_NE(NULL, B1); |
| const v8::HeapGraphNode* B2 = |
| GetProperty(global2, v8::HeapGraphEdge::kProperty, "B"); |
| CHECK_NE(NULL, B2); |
| CHECK_NE_SNAPSHOT_OBJECT_ID(0, B1->GetId()); |
| CHECK_EQ_SNAPSHOT_OBJECT_ID(B1->GetId(), B2->GetId()); |
| const v8::HeapGraphNode* a1 = |
| GetProperty(global1, v8::HeapGraphEdge::kProperty, "a"); |
| CHECK_NE(NULL, a1); |
| const v8::HeapGraphNode* a2 = |
| GetProperty(global2, v8::HeapGraphEdge::kProperty, "a"); |
| CHECK_NE(NULL, a2); |
| CHECK_NE_SNAPSHOT_OBJECT_ID(0, a1->GetId()); |
| CHECK_EQ_SNAPSHOT_OBJECT_ID(a1->GetId(), a2->GetId()); |
| const v8::HeapGraphNode* b1 = |
| GetProperty(global1, v8::HeapGraphEdge::kProperty, "b"); |
| CHECK_NE(NULL, b1); |
| const v8::HeapGraphNode* b2 = |
| GetProperty(global2, v8::HeapGraphEdge::kProperty, "b"); |
| CHECK_NE(NULL, b2); |
| CHECK_NE_SNAPSHOT_OBJECT_ID(0, b1->GetId()); |
| CHECK_EQ_SNAPSHOT_OBJECT_ID(b1->GetId(), b2->GetId()); |
| } |
| |
| |
| TEST(HeapSnapshotRootPreservedAfterSorting) { |
| v8::HandleScope scope; |
| LocalContext env; |
| const v8::HeapSnapshot* snapshot = |
| v8::HeapProfiler::TakeSnapshot(v8_str("s")); |
| const v8::HeapGraphNode* root1 = snapshot->GetRoot(); |
| const_cast<i::HeapSnapshot*>(reinterpret_cast<const i::HeapSnapshot*>( |
| snapshot))->GetSortedEntriesList(); |
| const v8::HeapGraphNode* root2 = snapshot->GetRoot(); |
| CHECK_EQ(root1, root2); |
| } |
| |
| |
| namespace { |
| |
| class TestJSONStream : public v8::OutputStream { |
| public: |
| TestJSONStream() : eos_signaled_(0), abort_countdown_(-1) {} |
| explicit TestJSONStream(int abort_countdown) |
| : eos_signaled_(0), abort_countdown_(abort_countdown) {} |
| virtual ~TestJSONStream() {} |
| virtual void EndOfStream() { ++eos_signaled_; } |
| virtual WriteResult WriteAsciiChunk(char* buffer, int chars_written) { |
| if (abort_countdown_ > 0) --abort_countdown_; |
| if (abort_countdown_ == 0) return kAbort; |
| CHECK_GT(chars_written, 0); |
| i::Vector<char> chunk = buffer_.AddBlock(chars_written, '\0'); |
| memcpy(chunk.start(), buffer, chars_written); |
| return kContinue; |
| } |
| virtual WriteResult WriteUint32Chunk(uint32_t* buffer, int chars_written) { |
| ASSERT(false); |
| return kAbort; |
| } |
| void WriteTo(i::Vector<char> dest) { buffer_.WriteTo(dest); } |
| int eos_signaled() { return eos_signaled_; } |
| int size() { return buffer_.size(); } |
| |
| private: |
| i::Collector<char> buffer_; |
| int eos_signaled_; |
| int abort_countdown_; |
| }; |
| |
| class AsciiResource: public v8::String::ExternalAsciiStringResource { |
| public: |
| explicit AsciiResource(i::Vector<char> string): data_(string.start()) { |
| length_ = string.length(); |
| } |
| virtual const char* data() const { return data_; } |
| virtual size_t length() const { return length_; } |
| private: |
| const char* data_; |
| size_t length_; |
| }; |
| |
| } // namespace |
| |
| TEST(HeapSnapshotJSONSerialization) { |
| v8::HandleScope scope; |
| LocalContext env; |
| |
| #define STRING_LITERAL_FOR_TEST \ |
| "\"String \\n\\r\\u0008\\u0081\\u0101\\u0801\\u8001\"" |
| CompileRun( |
| "function A(s) { this.s = s; }\n" |
| "function B(x) { this.x = x; }\n" |
| "var a = new A(" STRING_LITERAL_FOR_TEST ");\n" |
| "var b = new B(a);"); |
| const v8::HeapSnapshot* snapshot = |
| v8::HeapProfiler::TakeSnapshot(v8_str("json")); |
| TestJSONStream stream; |
| snapshot->Serialize(&stream, v8::HeapSnapshot::kJSON); |
| CHECK_GT(stream.size(), 0); |
| CHECK_EQ(1, stream.eos_signaled()); |
| i::ScopedVector<char> json(stream.size()); |
| stream.WriteTo(json); |
| |
| // Verify that snapshot string is valid JSON. |
| AsciiResource json_res(json); |
| v8::Local<v8::String> json_string = v8::String::NewExternal(&json_res); |
| env->Global()->Set(v8_str("json_snapshot"), json_string); |
| v8::Local<v8::Value> snapshot_parse_result = CompileRun( |
| "var parsed = JSON.parse(json_snapshot); true;"); |
| CHECK(!snapshot_parse_result.IsEmpty()); |
| |
| // Verify that snapshot object has required fields. |
| v8::Local<v8::Object> parsed_snapshot = |
| env->Global()->Get(v8_str("parsed"))->ToObject(); |
| CHECK(parsed_snapshot->Has(v8_str("snapshot"))); |
| CHECK(parsed_snapshot->Has(v8_str("nodes"))); |
| CHECK(parsed_snapshot->Has(v8_str("edges"))); |
| CHECK(parsed_snapshot->Has(v8_str("strings"))); |
| |
| // Get node and edge "member" offsets. |
| v8::Local<v8::Value> meta_analysis_result = CompileRun( |
| "var meta = parsed.snapshot.meta;\n" |
| "var edge_count_offset = meta.node_fields.indexOf('edge_count');\n" |
| "var node_fields_count = meta.node_fields.length;\n" |
| "var edge_fields_count = meta.edge_fields.length;\n" |
| "var edge_type_offset = meta.edge_fields.indexOf('type');\n" |
| "var edge_name_offset = meta.edge_fields.indexOf('name_or_index');\n" |
| "var edge_to_node_offset = meta.edge_fields.indexOf('to_node');\n" |
| "var property_type =" |
| " meta.edge_types[edge_type_offset].indexOf('property');\n" |
| "var shortcut_type =" |
| " meta.edge_types[edge_type_offset].indexOf('shortcut');\n" |
| "var node_count = parsed.nodes.length / node_fields_count;\n" |
| "var first_edge_indexes = parsed.first_edge_indexes = [];\n" |
| "for (var i = 0, first_edge_index = 0; i < node_count; ++i) {\n" |
| " first_edge_indexes[i] = first_edge_index;\n" |
| " first_edge_index += edge_fields_count *\n" |
| " parsed.nodes[i * node_fields_count + edge_count_offset];\n" |
| "}\n"); |
| CHECK(!meta_analysis_result.IsEmpty()); |
| |
| // A helper function for processing encoded nodes. |
| CompileRun( |
| "function GetChildPosByProperty(pos, prop_name, prop_type) {\n" |
| " var nodes = parsed.nodes;\n" |
| " var edges = parsed.edges;\n" |
| " var strings = parsed.strings;\n" |
| " var node_ordinal = pos / node_fields_count;\n" |
| " for (var i = parsed.first_edge_indexes[node_ordinal],\n" |
| " count = parsed.first_edge_indexes[node_ordinal + 1];\n" |
| " i < count; i += edge_fields_count) {\n" |
| " if (edges[i + edge_type_offset] === prop_type\n" |
| " && strings[edges[i + edge_name_offset]] === prop_name)\n" |
| " return edges[i + edge_to_node_offset];\n" |
| " }\n" |
| " return null;\n" |
| "}\n"); |
| // Get the string index using the path: <root> -> <global>.b.x.s |
| v8::Local<v8::Value> string_obj_pos_val = CompileRun( |
| "GetChildPosByProperty(\n" |
| " GetChildPosByProperty(\n" |
| " GetChildPosByProperty(" |
| " parsed.edges[edge_to_node_offset]," |
| " \"b\", property_type),\n" |
| " \"x\", property_type)," |
| " \"s\", property_type)"); |
| CHECK(!string_obj_pos_val.IsEmpty()); |
| int string_obj_pos = |
| static_cast<int>(string_obj_pos_val->ToNumber()->Value()); |
| v8::Local<v8::Object> nodes_array = |
| parsed_snapshot->Get(v8_str("nodes"))->ToObject(); |
| int string_index = static_cast<int>( |
| nodes_array->Get(string_obj_pos + 1)->ToNumber()->Value()); |
| CHECK_GT(string_index, 0); |
| v8::Local<v8::Object> strings_array = |
| parsed_snapshot->Get(v8_str("strings"))->ToObject(); |
| v8::Local<v8::String> string = strings_array->Get(string_index)->ToString(); |
| v8::Local<v8::String> ref_string = |
| CompileRun(STRING_LITERAL_FOR_TEST)->ToString(); |
| #undef STRING_LITERAL_FOR_TEST |
| CHECK_EQ(*v8::String::Utf8Value(ref_string), |
| *v8::String::Utf8Value(string)); |
| } |
| |
| |
| TEST(HeapSnapshotJSONSerializationAborting) { |
| v8::HandleScope scope; |
| LocalContext env; |
| const v8::HeapSnapshot* snapshot = |
| v8::HeapProfiler::TakeSnapshot(v8_str("abort")); |
| TestJSONStream stream(5); |
| snapshot->Serialize(&stream, v8::HeapSnapshot::kJSON); |
| CHECK_GT(stream.size(), 0); |
| CHECK_EQ(0, stream.eos_signaled()); |
| } |
| |
| namespace { |
| |
| class TestStatsStream : public v8::OutputStream { |
| public: |
| TestStatsStream() |
| : eos_signaled_(0), |
| updates_written_(0), |
| entries_count_(0), |
| entries_size_(0), |
| intervals_count_(0), |
| first_interval_index_(-1) { } |
| TestStatsStream(const TestStatsStream& stream) |
| : v8::OutputStream(stream), |
| eos_signaled_(stream.eos_signaled_), |
| updates_written_(stream.updates_written_), |
| entries_count_(stream.entries_count_), |
| entries_size_(stream.entries_size_), |
| intervals_count_(stream.intervals_count_), |
| first_interval_index_(stream.first_interval_index_) { } |
| virtual ~TestStatsStream() {} |
| virtual void EndOfStream() { ++eos_signaled_; } |
| virtual WriteResult WriteAsciiChunk(char* buffer, int chars_written) { |
| ASSERT(false); |
| return kAbort; |
| } |
| virtual WriteResult WriteHeapStatsChunk(v8::HeapStatsUpdate* buffer, |
| int updates_written) { |
| ++intervals_count_; |
| ASSERT(updates_written); |
| updates_written_ += updates_written; |
| entries_count_ = 0; |
| if (first_interval_index_ == -1 && updates_written != 0) |
| first_interval_index_ = buffer[0].index; |
| for (int i = 0; i < updates_written; ++i) { |
| entries_count_ += buffer[i].count; |
| entries_size_ += buffer[i].size; |
| } |
| |
| return kContinue; |
| } |
| int eos_signaled() { return eos_signaled_; } |
| int updates_written() { return updates_written_; } |
| uint32_t entries_count() const { return entries_count_; } |
| uint32_t entries_size() const { return entries_size_; } |
| int intervals_count() const { return intervals_count_; } |
| int first_interval_index() const { return first_interval_index_; } |
| |
| private: |
| int eos_signaled_; |
| int updates_written_; |
| uint32_t entries_count_; |
| uint32_t entries_size_; |
| int intervals_count_; |
| int first_interval_index_; |
| }; |
| |
| } // namespace |
| |
| static TestStatsStream GetHeapStatsUpdate( |
| v8::SnapshotObjectId* object_id = NULL) { |
| TestStatsStream stream; |
| v8::SnapshotObjectId last_seen_id = |
| v8::HeapProfiler::PushHeapObjectsStats(&stream); |
| if (object_id) |
| *object_id = last_seen_id; |
| CHECK_EQ(1, stream.eos_signaled()); |
| return stream; |
| } |
| |
| |
| TEST(HeapSnapshotObjectsStats) { |
| v8::HandleScope scope; |
| LocalContext env; |
| |
| v8::HeapProfiler::StartHeapObjectsTracking(); |
| // We have to call GC 6 times. In other case the garbage will be |
| // the reason of flakiness. |
| for (int i = 0; i < 6; ++i) { |
| HEAP->CollectAllGarbage(i::Heap::kNoGCFlags); |
| } |
| |
| v8::SnapshotObjectId initial_id; |
| { |
| // Single chunk of data expected in update. Initial data. |
| TestStatsStream stats_update = GetHeapStatsUpdate(&initial_id); |
| CHECK_EQ(1, stats_update.intervals_count()); |
| CHECK_EQ(1, stats_update.updates_written()); |
| CHECK_LT(0, stats_update.entries_size()); |
| CHECK_EQ(0, stats_update.first_interval_index()); |
| } |
| |
| // No data expected in update because nothing has happened. |
| v8::SnapshotObjectId same_id; |
| CHECK_EQ(0, GetHeapStatsUpdate(&same_id).updates_written()); |
| CHECK_EQ_SNAPSHOT_OBJECT_ID(initial_id, same_id); |
| |
| { |
| v8::SnapshotObjectId additional_string_id; |
| v8::HandleScope inner_scope_1; |
| v8_str("string1"); |
| { |
| // Single chunk of data with one new entry expected in update. |
| TestStatsStream stats_update = GetHeapStatsUpdate(&additional_string_id); |
| CHECK_LT(same_id, additional_string_id); |
| CHECK_EQ(1, stats_update.intervals_count()); |
| CHECK_EQ(1, stats_update.updates_written()); |
| CHECK_LT(0, stats_update.entries_size()); |
| CHECK_EQ(1, stats_update.entries_count()); |
| CHECK_EQ(2, stats_update.first_interval_index()); |
| } |
| |
| // No data expected in update because nothing happened. |
| v8::SnapshotObjectId last_id; |
| CHECK_EQ(0, GetHeapStatsUpdate(&last_id).updates_written()); |
| CHECK_EQ_SNAPSHOT_OBJECT_ID(additional_string_id, last_id); |
| |
| { |
| v8::HandleScope inner_scope_2; |
| v8_str("string2"); |
| |
| uint32_t entries_size; |
| { |
| v8::HandleScope inner_scope_3; |
| v8_str("string3"); |
| v8_str("string4"); |
| |
| { |
| // Single chunk of data with three new entries expected in update. |
| TestStatsStream stats_update = GetHeapStatsUpdate(); |
| CHECK_EQ(1, stats_update.intervals_count()); |
| CHECK_EQ(1, stats_update.updates_written()); |
| CHECK_LT(0, entries_size = stats_update.entries_size()); |
| CHECK_EQ(3, stats_update.entries_count()); |
| CHECK_EQ(4, stats_update.first_interval_index()); |
| } |
| } |
| |
| { |
| // Single chunk of data with two left entries expected in update. |
| TestStatsStream stats_update = GetHeapStatsUpdate(); |
| CHECK_EQ(1, stats_update.intervals_count()); |
| CHECK_EQ(1, stats_update.updates_written()); |
| CHECK_GT(entries_size, stats_update.entries_size()); |
| CHECK_EQ(1, stats_update.entries_count()); |
| // Two strings from forth interval were released. |
| CHECK_EQ(4, stats_update.first_interval_index()); |
| } |
| } |
| |
| { |
| // Single chunk of data with 0 left entries expected in update. |
| TestStatsStream stats_update = GetHeapStatsUpdate(); |
| CHECK_EQ(1, stats_update.intervals_count()); |
| CHECK_EQ(1, stats_update.updates_written()); |
| CHECK_EQ(0, stats_update.entries_size()); |
| CHECK_EQ(0, stats_update.entries_count()); |
| // The last string from forth interval was released. |
| CHECK_EQ(4, stats_update.first_interval_index()); |
| } |
| } |
| { |
| // Single chunk of data with 0 left entries expected in update. |
| TestStatsStream stats_update = GetHeapStatsUpdate(); |
| CHECK_EQ(1, stats_update.intervals_count()); |
| CHECK_EQ(1, stats_update.updates_written()); |
| CHECK_EQ(0, stats_update.entries_size()); |
| CHECK_EQ(0, stats_update.entries_count()); |
| // The only string from the second interval was released. |
| CHECK_EQ(2, stats_update.first_interval_index()); |
| } |
| |
| v8::Local<v8::Array> array = v8::Array::New(); |
| CHECK_EQ(0, array->Length()); |
| // Force array's buffer allocation. |
| array->Set(2, v8_num(7)); |
| |
| uint32_t entries_size; |
| { |
| // Single chunk of data with 2 entries expected in update. |
| TestStatsStream stats_update = GetHeapStatsUpdate(); |
| CHECK_EQ(1, stats_update.intervals_count()); |
| CHECK_EQ(1, stats_update.updates_written()); |
| CHECK_LT(0, entries_size = stats_update.entries_size()); |
| // They are the array and its buffer. |
| CHECK_EQ(2, stats_update.entries_count()); |
| CHECK_EQ(8, stats_update.first_interval_index()); |
| } |
| |
| for (int i = 0; i < 100; ++i) |
| array->Set(i, v8_num(i)); |
| |
| { |
| // Single chunk of data with 1 entry expected in update. |
| TestStatsStream stats_update = GetHeapStatsUpdate(); |
| CHECK_EQ(1, stats_update.intervals_count()); |
| // The first interval was changed because old buffer was collected. |
| // The second interval was changed because new buffer was allocated. |
| CHECK_EQ(2, stats_update.updates_written()); |
| CHECK_LT(entries_size, stats_update.entries_size()); |
| CHECK_EQ(2, stats_update.entries_count()); |
| CHECK_EQ(8, stats_update.first_interval_index()); |
| } |
| |
| v8::HeapProfiler::StopHeapObjectsTracking(); |
| } |
| |
| |
| static void CheckChildrenIds(const v8::HeapSnapshot* snapshot, |
| const v8::HeapGraphNode* node, |
| int level, int max_level) { |
| if (level > max_level) return; |
| CHECK_EQ(node, snapshot->GetNodeById(node->GetId())); |
| for (int i = 0, count = node->GetChildrenCount(); i < count; ++i) { |
| const v8::HeapGraphEdge* prop = node->GetChild(i); |
| const v8::HeapGraphNode* child = |
| snapshot->GetNodeById(prop->GetToNode()->GetId()); |
| CHECK_EQ_SNAPSHOT_OBJECT_ID(prop->GetToNode()->GetId(), child->GetId()); |
| CHECK_EQ(prop->GetToNode(), child); |
| CheckChildrenIds(snapshot, child, level + 1, max_level); |
| } |
| } |
| |
| |
| TEST(HeapSnapshotGetNodeById) { |
| v8::HandleScope scope; |
| LocalContext env; |
| |
| const v8::HeapSnapshot* snapshot = |
| v8::HeapProfiler::TakeSnapshot(v8_str("id")); |
| const v8::HeapGraphNode* root = snapshot->GetRoot(); |
| CheckChildrenIds(snapshot, root, 0, 3); |
| // Check a big id, which should not exist yet. |
| CHECK_EQ(NULL, snapshot->GetNodeById(0x1000000UL)); |
| } |
| |
| |
| TEST(HeapSnapshotGetSnapshotObjectId) { |
| v8::HandleScope scope; |
| LocalContext env; |
| CompileRun("globalObject = {};\n"); |
| const v8::HeapSnapshot* snapshot = |
| v8::HeapProfiler::TakeSnapshot(v8_str("get_snapshot_object_id")); |
| const v8::HeapGraphNode* global = GetGlobalObject(snapshot); |
| const v8::HeapGraphNode* global_object = |
| GetProperty(global, v8::HeapGraphEdge::kProperty, "globalObject"); |
| CHECK(global_object); |
| |
| v8::Local<v8::Value> globalObjectHandle = |
| env->Global()->Get(v8::String::New("globalObject")); |
| CHECK(!globalObjectHandle.IsEmpty()); |
| CHECK(globalObjectHandle->IsObject()); |
| |
| v8::SnapshotObjectId id = |
| v8::HeapProfiler::GetSnapshotObjectId(globalObjectHandle); |
| CHECK_NE(static_cast<int>(v8::HeapProfiler::kUnknownObjectId), |
| id); |
| CHECK_EQ(static_cast<int>(id), global_object->GetId()); |
| } |
| |
| |
| TEST(HeapSnapshotUnknownSnapshotObjectId) { |
| v8::HandleScope scope; |
| LocalContext env; |
| CompileRun("globalObject = {};\n"); |
| const v8::HeapSnapshot* snapshot = |
| v8::HeapProfiler::TakeSnapshot(v8_str("unknown_object_id")); |
| const v8::HeapGraphNode* node = |
| snapshot->GetNodeById(v8::HeapProfiler::kUnknownObjectId); |
| CHECK_EQ(NULL, node); |
| } |
| |
| |
| namespace { |
| |
| class TestActivityControl : public v8::ActivityControl { |
| public: |
| explicit TestActivityControl(int abort_count) |
| : done_(0), total_(0), abort_count_(abort_count) {} |
| ControlOption ReportProgressValue(int done, int total) { |
| done_ = done; |
| total_ = total; |
| return --abort_count_ != 0 ? kContinue : kAbort; |
| } |
| int done() { return done_; } |
| int total() { return total_; } |
| |
| private: |
| int done_; |
| int total_; |
| int abort_count_; |
| }; |
| } |
| |
| TEST(TakeHeapSnapshotAborting) { |
| v8::HandleScope scope; |
| LocalContext env; |
| |
| const int snapshots_count = v8::HeapProfiler::GetSnapshotsCount(); |
| TestActivityControl aborting_control(1); |
| const v8::HeapSnapshot* no_snapshot = |
| v8::HeapProfiler::TakeSnapshot(v8_str("abort"), |
| v8::HeapSnapshot::kFull, |
| &aborting_control); |
| CHECK_EQ(NULL, no_snapshot); |
| CHECK_EQ(snapshots_count, v8::HeapProfiler::GetSnapshotsCount()); |
| CHECK_GT(aborting_control.total(), aborting_control.done()); |
| |
| TestActivityControl control(-1); // Don't abort. |
| const v8::HeapSnapshot* snapshot = |
| v8::HeapProfiler::TakeSnapshot(v8_str("full"), |
| v8::HeapSnapshot::kFull, |
| &control); |
| CHECK_NE(NULL, snapshot); |
| CHECK_EQ(snapshots_count + 1, v8::HeapProfiler::GetSnapshotsCount()); |
| CHECK_EQ(control.total(), control.done()); |
| CHECK_GT(control.total(), 0); |
| } |
| |
| |
| namespace { |
| |
| class TestRetainedObjectInfo : public v8::RetainedObjectInfo { |
| public: |
| TestRetainedObjectInfo(int hash, |
| const char* group_label, |
| const char* label, |
| intptr_t element_count = -1, |
| intptr_t size = -1) |
| : disposed_(false), |
| hash_(hash), |
| group_label_(group_label), |
| label_(label), |
| element_count_(element_count), |
| size_(size) { |
| instances.Add(this); |
| } |
| virtual ~TestRetainedObjectInfo() {} |
| virtual void Dispose() { |
| CHECK(!disposed_); |
| disposed_ = true; |
| } |
| virtual bool IsEquivalent(RetainedObjectInfo* other) { |
| return GetHash() == other->GetHash(); |
| } |
| virtual intptr_t GetHash() { return hash_; } |
| virtual const char* GetGroupLabel() { return group_label_; } |
| virtual const char* GetLabel() { return label_; } |
| virtual intptr_t GetElementCount() { return element_count_; } |
| virtual intptr_t GetSizeInBytes() { return size_; } |
| bool disposed() { return disposed_; } |
| |
| static v8::RetainedObjectInfo* WrapperInfoCallback( |
| uint16_t class_id, v8::Handle<v8::Value> wrapper) { |
| if (class_id == 1) { |
| if (wrapper->IsString()) { |
| v8::String::AsciiValue ascii(wrapper); |
| if (strcmp(*ascii, "AAA") == 0) |
| return new TestRetainedObjectInfo(1, "aaa-group", "aaa", 100); |
| else if (strcmp(*ascii, "BBB") == 0) |
| return new TestRetainedObjectInfo(1, "aaa-group", "aaa", 100); |
| } |
| } else if (class_id == 2) { |
| if (wrapper->IsString()) { |
| v8::String::AsciiValue ascii(wrapper); |
| if (strcmp(*ascii, "CCC") == 0) |
| return new TestRetainedObjectInfo(2, "ccc-group", "ccc"); |
| } |
| } |
| CHECK(false); |
| return NULL; |
| } |
| |
| static i::List<TestRetainedObjectInfo*> instances; |
| |
| private: |
| bool disposed_; |
| int category_; |
| int hash_; |
| const char* group_label_; |
| const char* label_; |
| intptr_t element_count_; |
| intptr_t size_; |
| }; |
| |
| |
| i::List<TestRetainedObjectInfo*> TestRetainedObjectInfo::instances; |
| } |
| |
| |
| static const v8::HeapGraphNode* GetNode(const v8::HeapGraphNode* parent, |
| v8::HeapGraphNode::Type type, |
| const char* name) { |
| for (int i = 0, count = parent->GetChildrenCount(); i < count; ++i) { |
| const v8::HeapGraphNode* node = parent->GetChild(i)->GetToNode(); |
| if (node->GetType() == type && strcmp(name, |
| const_cast<i::HeapEntry*>( |
| reinterpret_cast<const i::HeapEntry*>(node))->name()) == 0) { |
| return node; |
| } |
| } |
| return NULL; |
| } |
| |
| |
| TEST(HeapSnapshotRetainedObjectInfo) { |
| v8::HandleScope scope; |
| LocalContext env; |
| |
| v8::HeapProfiler::DefineWrapperClass( |
| 1, TestRetainedObjectInfo::WrapperInfoCallback); |
| v8::HeapProfiler::DefineWrapperClass( |
| 2, TestRetainedObjectInfo::WrapperInfoCallback); |
| v8::Persistent<v8::String> p_AAA = |
| v8::Persistent<v8::String>::New(v8_str("AAA")); |
| p_AAA.SetWrapperClassId(1); |
| v8::Persistent<v8::String> p_BBB = |
| v8::Persistent<v8::String>::New(v8_str("BBB")); |
| p_BBB.SetWrapperClassId(1); |
| v8::Persistent<v8::String> p_CCC = |
| v8::Persistent<v8::String>::New(v8_str("CCC")); |
| p_CCC.SetWrapperClassId(2); |
| CHECK_EQ(0, TestRetainedObjectInfo::instances.length()); |
| const v8::HeapSnapshot* snapshot = |
| v8::HeapProfiler::TakeSnapshot(v8_str("retained")); |
| |
| CHECK_EQ(3, TestRetainedObjectInfo::instances.length()); |
| for (int i = 0; i < TestRetainedObjectInfo::instances.length(); ++i) { |
| CHECK(TestRetainedObjectInfo::instances[i]->disposed()); |
| delete TestRetainedObjectInfo::instances[i]; |
| } |
| |
| const v8::HeapGraphNode* native_group_aaa = GetNode( |
| snapshot->GetRoot(), v8::HeapGraphNode::kSynthetic, "aaa-group"); |
| CHECK_NE(NULL, native_group_aaa); |
| CHECK_EQ(1, native_group_aaa->GetChildrenCount()); |
| const v8::HeapGraphNode* aaa = GetNode( |
| native_group_aaa, v8::HeapGraphNode::kNative, "aaa / 100 entries"); |
| CHECK_NE(NULL, aaa); |
| CHECK_EQ(2, aaa->GetChildrenCount()); |
| |
| const v8::HeapGraphNode* native_group_ccc = GetNode( |
| snapshot->GetRoot(), v8::HeapGraphNode::kSynthetic, "ccc-group"); |
| const v8::HeapGraphNode* ccc = GetNode( |
| native_group_ccc, v8::HeapGraphNode::kNative, "ccc"); |
| CHECK_NE(NULL, ccc); |
| |
| const v8::HeapGraphNode* n_AAA = GetNode( |
| aaa, v8::HeapGraphNode::kString, "AAA"); |
| CHECK_NE(NULL, n_AAA); |
| const v8::HeapGraphNode* n_BBB = GetNode( |
| aaa, v8::HeapGraphNode::kString, "BBB"); |
| CHECK_NE(NULL, n_BBB); |
| CHECK_EQ(1, ccc->GetChildrenCount()); |
| const v8::HeapGraphNode* n_CCC = GetNode( |
| ccc, v8::HeapGraphNode::kString, "CCC"); |
| CHECK_NE(NULL, n_CCC); |
| |
| CHECK_EQ(aaa, GetProperty(n_AAA, v8::HeapGraphEdge::kInternal, "native")); |
| CHECK_EQ(aaa, GetProperty(n_BBB, v8::HeapGraphEdge::kInternal, "native")); |
| CHECK_EQ(ccc, GetProperty(n_CCC, v8::HeapGraphEdge::kInternal, "native")); |
| } |
| |
| |
| class GraphWithImplicitRefs { |
| public: |
| static const int kObjectsCount = 4; |
| explicit GraphWithImplicitRefs(LocalContext* env) { |
| CHECK_EQ(NULL, instance_); |
| instance_ = this; |
| for (int i = 0; i < kObjectsCount; i++) { |
| objects_[i] = v8::Persistent<v8::Object>::New(v8::Object::New()); |
| } |
| (*env)->Global()->Set(v8_str("root_object"), objects_[0]); |
| } |
| ~GraphWithImplicitRefs() { |
| instance_ = NULL; |
| } |
| |
| static void gcPrologue() { |
| instance_->AddImplicitReferences(); |
| } |
| |
| private: |
| void AddImplicitReferences() { |
| // 0 -> 1 |
| v8::V8::AddImplicitReferences( |
| v8::Persistent<v8::Object>::Cast(objects_[0]), &objects_[1], 1); |
| // Adding two more references(note length=2 in params): 1 -> 2, 1 -> 3 |
| v8::V8::AddImplicitReferences( |
| v8::Persistent<v8::Object>::Cast(objects_[1]), &objects_[2], 2); |
| } |
| |
| v8::Persistent<v8::Value> objects_[kObjectsCount]; |
| static GraphWithImplicitRefs* instance_; |
| }; |
| |
| GraphWithImplicitRefs* GraphWithImplicitRefs::instance_ = NULL; |
| |
| |
| TEST(HeapSnapshotImplicitReferences) { |
| v8::HandleScope scope; |
| LocalContext env; |
| |
| GraphWithImplicitRefs graph(&env); |
| v8::V8::SetGlobalGCPrologueCallback(&GraphWithImplicitRefs::gcPrologue); |
| |
| const v8::HeapSnapshot* snapshot = |
| v8::HeapProfiler::TakeSnapshot(v8_str("implicit_refs")); |
| |
| const v8::HeapGraphNode* global_object = GetGlobalObject(snapshot); |
| const v8::HeapGraphNode* obj0 = GetProperty( |
| global_object, v8::HeapGraphEdge::kProperty, "root_object"); |
| CHECK(obj0); |
| CHECK_EQ(v8::HeapGraphNode::kObject, obj0->GetType()); |
| const v8::HeapGraphNode* obj1 = GetProperty( |
| obj0, v8::HeapGraphEdge::kInternal, "native"); |
| CHECK(obj1); |
| int implicit_targets_count = 0; |
| for (int i = 0, count = obj1->GetChildrenCount(); i < count; ++i) { |
| const v8::HeapGraphEdge* prop = obj1->GetChild(i); |
| v8::String::AsciiValue prop_name(prop->GetName()); |
| if (prop->GetType() == v8::HeapGraphEdge::kInternal && |
| strcmp("native", *prop_name) == 0) { |
| ++implicit_targets_count; |
| } |
| } |
| CHECK_EQ(2, implicit_targets_count); |
| v8::V8::SetGlobalGCPrologueCallback(NULL); |
| } |
| |
| |
| TEST(DeleteAllHeapSnapshots) { |
| v8::HandleScope scope; |
| LocalContext env; |
| |
| CHECK_EQ(0, v8::HeapProfiler::GetSnapshotsCount()); |
| v8::HeapProfiler::DeleteAllSnapshots(); |
| CHECK_EQ(0, v8::HeapProfiler::GetSnapshotsCount()); |
| CHECK_NE(NULL, v8::HeapProfiler::TakeSnapshot(v8_str("1"))); |
| CHECK_EQ(1, v8::HeapProfiler::GetSnapshotsCount()); |
| v8::HeapProfiler::DeleteAllSnapshots(); |
| CHECK_EQ(0, v8::HeapProfiler::GetSnapshotsCount()); |
| CHECK_NE(NULL, v8::HeapProfiler::TakeSnapshot(v8_str("1"))); |
| CHECK_NE(NULL, v8::HeapProfiler::TakeSnapshot(v8_str("2"))); |
| CHECK_EQ(2, v8::HeapProfiler::GetSnapshotsCount()); |
| v8::HeapProfiler::DeleteAllSnapshots(); |
| CHECK_EQ(0, v8::HeapProfiler::GetSnapshotsCount()); |
| } |
| |
| |
| TEST(DeleteHeapSnapshot) { |
| v8::HandleScope scope; |
| LocalContext env; |
| |
| CHECK_EQ(0, v8::HeapProfiler::GetSnapshotsCount()); |
| const v8::HeapSnapshot* s1 = |
| v8::HeapProfiler::TakeSnapshot(v8_str("1")); |
| CHECK_NE(NULL, s1); |
| CHECK_EQ(1, v8::HeapProfiler::GetSnapshotsCount()); |
| unsigned uid1 = s1->GetUid(); |
| CHECK_EQ(s1, v8::HeapProfiler::FindSnapshot(uid1)); |
| const_cast<v8::HeapSnapshot*>(s1)->Delete(); |
| CHECK_EQ(0, v8::HeapProfiler::GetSnapshotsCount()); |
| CHECK_EQ(NULL, v8::HeapProfiler::FindSnapshot(uid1)); |
| |
| const v8::HeapSnapshot* s2 = |
| v8::HeapProfiler::TakeSnapshot(v8_str("2")); |
| CHECK_NE(NULL, s2); |
| CHECK_EQ(1, v8::HeapProfiler::GetSnapshotsCount()); |
| unsigned uid2 = s2->GetUid(); |
| CHECK_NE(static_cast<int>(uid1), static_cast<int>(uid2)); |
| CHECK_EQ(s2, v8::HeapProfiler::FindSnapshot(uid2)); |
| const v8::HeapSnapshot* s3 = |
| v8::HeapProfiler::TakeSnapshot(v8_str("3")); |
| CHECK_NE(NULL, s3); |
| CHECK_EQ(2, v8::HeapProfiler::GetSnapshotsCount()); |
| unsigned uid3 = s3->GetUid(); |
| CHECK_NE(static_cast<int>(uid1), static_cast<int>(uid3)); |
| CHECK_EQ(s3, v8::HeapProfiler::FindSnapshot(uid3)); |
| const_cast<v8::HeapSnapshot*>(s2)->Delete(); |
| CHECK_EQ(1, v8::HeapProfiler::GetSnapshotsCount()); |
| CHECK_EQ(NULL, v8::HeapProfiler::FindSnapshot(uid2)); |
| CHECK_EQ(s3, v8::HeapProfiler::FindSnapshot(uid3)); |
| const_cast<v8::HeapSnapshot*>(s3)->Delete(); |
| CHECK_EQ(0, v8::HeapProfiler::GetSnapshotsCount()); |
| CHECK_EQ(NULL, v8::HeapProfiler::FindSnapshot(uid3)); |
| } |
| |
| |
| TEST(DocumentURL) { |
| v8::HandleScope scope; |
| LocalContext env; |
| |
| CompileRun("document = { URL:\"abcdefgh\" };"); |
| |
| const v8::HeapSnapshot* snapshot = |
| v8::HeapProfiler::TakeSnapshot(v8_str("document")); |
| const v8::HeapGraphNode* global = GetGlobalObject(snapshot); |
| CHECK_NE(NULL, global); |
| CHECK_EQ("Object / abcdefgh", |
| const_cast<i::HeapEntry*>( |
| reinterpret_cast<const i::HeapEntry*>(global))->name()); |
| } |
| |
| |
| TEST(DocumentWithException) { |
| v8::HandleScope scope; |
| LocalContext env; |
| |
| CompileRun( |
| "this.__defineGetter__(\"document\", function() { throw new Error(); })"); |
| const v8::HeapSnapshot* snapshot = |
| v8::HeapProfiler::TakeSnapshot(v8_str("document")); |
| const v8::HeapGraphNode* global = GetGlobalObject(snapshot); |
| CHECK_NE(NULL, global); |
| CHECK_EQ("Object", |
| const_cast<i::HeapEntry*>( |
| reinterpret_cast<const i::HeapEntry*>(global))->name()); |
| } |
| |
| |
| TEST(DocumentURLWithException) { |
| v8::HandleScope scope; |
| LocalContext env; |
| |
| CompileRun( |
| "function URLWithException() {}\n" |
| "URLWithException.prototype = { get URL() { throw new Error(); } };\n" |
| "document = { URL: new URLWithException() };"); |
| const v8::HeapSnapshot* snapshot = |
| v8::HeapProfiler::TakeSnapshot(v8_str("document")); |
| const v8::HeapGraphNode* global = GetGlobalObject(snapshot); |
| CHECK_NE(NULL, global); |
| CHECK_EQ("Object", |
| const_cast<i::HeapEntry*>( |
| reinterpret_cast<const i::HeapEntry*>(global))->name()); |
| } |
| |
| |
| TEST(NoHandleLeaks) { |
| v8::HandleScope scope; |
| LocalContext env; |
| |
| CompileRun("document = { URL:\"abcdefgh\" };"); |
| |
| v8::Handle<v8::String> name(v8_str("leakz")); |
| int count_before = i::HandleScope::NumberOfHandles(); |
| v8::HeapProfiler::TakeSnapshot(name); |
| int count_after = i::HandleScope::NumberOfHandles(); |
| CHECK_EQ(count_before, count_after); |
| } |
| |
| |
| TEST(NodesIteration) { |
| v8::HandleScope scope; |
| LocalContext env; |
| const v8::HeapSnapshot* snapshot = |
| v8::HeapProfiler::TakeSnapshot(v8_str("iteration")); |
| const v8::HeapGraphNode* global = GetGlobalObject(snapshot); |
| CHECK_NE(NULL, global); |
| // Verify that we can find this object by iteration. |
| const int nodes_count = snapshot->GetNodesCount(); |
| int count = 0; |
| for (int i = 0; i < nodes_count; ++i) { |
| if (snapshot->GetNode(i) == global) |
| ++count; |
| } |
| CHECK_EQ(1, count); |
| } |
| |
| |
| TEST(GetHeapValue) { |
| v8::HandleScope scope; |
| LocalContext env; |
| |
| CompileRun("a = { s_prop: \'value\', n_prop: 0.1 };"); |
| const v8::HeapSnapshot* snapshot = |
| v8::HeapProfiler::TakeSnapshot(v8_str("value")); |
| const v8::HeapGraphNode* global = GetGlobalObject(snapshot); |
| CHECK(global->GetHeapValue()->IsObject()); |
| v8::Local<v8::Object> js_global = |
| env->Global()->GetPrototype().As<v8::Object>(); |
| CHECK(js_global == global->GetHeapValue()); |
| const v8::HeapGraphNode* obj = GetProperty( |
| global, v8::HeapGraphEdge::kProperty, "a"); |
| CHECK(obj->GetHeapValue()->IsObject()); |
| v8::Local<v8::Object> js_obj = js_global->Get(v8_str("a")).As<v8::Object>(); |
| CHECK(js_obj == obj->GetHeapValue()); |
| const v8::HeapGraphNode* s_prop = |
| GetProperty(obj, v8::HeapGraphEdge::kProperty, "s_prop"); |
| v8::Local<v8::String> js_s_prop = |
| js_obj->Get(v8_str("s_prop")).As<v8::String>(); |
| CHECK(js_s_prop == s_prop->GetHeapValue()); |
| const v8::HeapGraphNode* n_prop = |
| GetProperty(obj, v8::HeapGraphEdge::kProperty, "n_prop"); |
| v8::Local<v8::Number> js_n_prop = |
| js_obj->Get(v8_str("n_prop")).As<v8::Number>(); |
| CHECK(js_n_prop == n_prop->GetHeapValue()); |
| } |
| |
| |
| TEST(GetHeapValueForDeletedObject) { |
| v8::HandleScope scope; |
| LocalContext env; |
| |
| // It is impossible to delete a global property, so we are about to delete a |
| // property of the "a" object. Also, the "p" object can't be an empty one |
| // because the empty object is static and isn't actually deleted. |
| CompileRun("a = { p: { r: {} } };"); |
| const v8::HeapSnapshot* snapshot = |
| v8::HeapProfiler::TakeSnapshot(v8_str("snapshot")); |
| const v8::HeapGraphNode* global = GetGlobalObject(snapshot); |
| const v8::HeapGraphNode* obj = GetProperty( |
| global, v8::HeapGraphEdge::kProperty, "a"); |
| const v8::HeapGraphNode* prop = GetProperty( |
| obj, v8::HeapGraphEdge::kProperty, "p"); |
| { |
| // Perform the check inside a nested local scope to avoid creating a |
| // reference to the object we are deleting. |
| v8::HandleScope scope; |
| CHECK(prop->GetHeapValue()->IsObject()); |
| } |
| CompileRun("delete a.p;"); |
| CHECK(prop->GetHeapValue()->IsUndefined()); |
| } |
| |
| |
| static int StringCmp(const char* ref, i::String* act) { |
| i::SmartArrayPointer<char> s_act = act->ToCString(); |
| int result = strcmp(ref, *s_act); |
| if (result != 0) |
| fprintf(stderr, "Expected: \"%s\", Actual: \"%s\"\n", ref, *s_act); |
| return result; |
| } |
| |
| |
| TEST(GetConstructorName) { |
| v8::HandleScope scope; |
| LocalContext env; |
| |
| CompileRun( |
| "function Constructor1() {};\n" |
| "var obj1 = new Constructor1();\n" |
| "var Constructor2 = function() {};\n" |
| "var obj2 = new Constructor2();\n" |
| "var obj3 = {};\n" |
| "obj3.constructor = function Constructor3() {};\n" |
| "var obj4 = {};\n" |
| "// Slow properties\n" |
| "for (var i=0; i<2000; ++i) obj4[\"p\" + i] = i;\n" |
| "obj4.constructor = function Constructor4() {};\n" |
| "var obj5 = {};\n" |
| "var obj6 = {};\n" |
| "obj6.constructor = 6;"); |
| v8::Local<v8::Object> js_global = |
| env->Global()->GetPrototype().As<v8::Object>(); |
| v8::Local<v8::Object> obj1 = js_global->Get(v8_str("obj1")).As<v8::Object>(); |
| i::Handle<i::JSObject> js_obj1 = v8::Utils::OpenHandle(*obj1); |
| CHECK_EQ(0, StringCmp( |
| "Constructor1", i::V8HeapExplorer::GetConstructorName(*js_obj1))); |
| v8::Local<v8::Object> obj2 = js_global->Get(v8_str("obj2")).As<v8::Object>(); |
| i::Handle<i::JSObject> js_obj2 = v8::Utils::OpenHandle(*obj2); |
| CHECK_EQ(0, StringCmp( |
| "Constructor2", i::V8HeapExplorer::GetConstructorName(*js_obj2))); |
| v8::Local<v8::Object> obj3 = js_global->Get(v8_str("obj3")).As<v8::Object>(); |
| i::Handle<i::JSObject> js_obj3 = v8::Utils::OpenHandle(*obj3); |
| CHECK_EQ(0, StringCmp( |
| "Constructor3", i::V8HeapExplorer::GetConstructorName(*js_obj3))); |
| v8::Local<v8::Object> obj4 = js_global->Get(v8_str("obj4")).As<v8::Object>(); |
| i::Handle<i::JSObject> js_obj4 = v8::Utils::OpenHandle(*obj4); |
| CHECK_EQ(0, StringCmp( |
| "Constructor4", i::V8HeapExplorer::GetConstructorName(*js_obj4))); |
| v8::Local<v8::Object> obj5 = js_global->Get(v8_str("obj5")).As<v8::Object>(); |
| i::Handle<i::JSObject> js_obj5 = v8::Utils::OpenHandle(*obj5); |
| CHECK_EQ(0, StringCmp( |
| "Object", i::V8HeapExplorer::GetConstructorName(*js_obj5))); |
| v8::Local<v8::Object> obj6 = js_global->Get(v8_str("obj6")).As<v8::Object>(); |
| i::Handle<i::JSObject> js_obj6 = v8::Utils::OpenHandle(*obj6); |
| CHECK_EQ(0, StringCmp( |
| "Object", i::V8HeapExplorer::GetConstructorName(*js_obj6))); |
| } |
| |
| |
| TEST(FastCaseGetter) { |
| v8::HandleScope scope; |
| LocalContext env; |
| |
| CompileRun("var obj1 = {};\n" |
| "obj1.__defineGetter__('propWithGetter', function Y() {\n" |
| " return 42;\n" |
| "});\n" |
| "obj1.__defineSetter__('propWithSetter', function Z(value) {\n" |
| " return this.value_ = value;\n" |
| "});\n"); |
| const v8::HeapSnapshot* snapshot = |
| v8::HeapProfiler::TakeSnapshot(v8_str("fastCaseGetter")); |
| |
| const v8::HeapGraphNode* global = GetGlobalObject(snapshot); |
| CHECK_NE(NULL, global); |
| const v8::HeapGraphNode* obj1 = |
| GetProperty(global, v8::HeapGraphEdge::kProperty, "obj1"); |
| CHECK_NE(NULL, obj1); |
| const v8::HeapGraphNode* getterFunction = |
| GetProperty(obj1, v8::HeapGraphEdge::kProperty, "get-propWithGetter"); |
| CHECK_NE(NULL, getterFunction); |
| const v8::HeapGraphNode* setterFunction = |
| GetProperty(obj1, v8::HeapGraphEdge::kProperty, "set-propWithSetter"); |
| CHECK_NE(NULL, setterFunction); |
| } |
| |
| TEST(HiddenPropertiesFastCase) { |
| v8::HandleScope scope; |
| LocalContext env; |
| |
| CompileRun( |
| "function C(x) { this.a = this; this.b = x; }\n" |
| "c = new C(2012);\n"); |
| const v8::HeapSnapshot* snapshot = |
| v8::HeapProfiler::TakeSnapshot(v8_str("HiddenPropertiesFastCase1")); |
| const v8::HeapGraphNode* global = GetGlobalObject(snapshot); |
| const v8::HeapGraphNode* c = |
| GetProperty(global, v8::HeapGraphEdge::kProperty, "c"); |
| CHECK_NE(NULL, c); |
| const v8::HeapGraphNode* hidden_props = |
| GetProperty(c, v8::HeapGraphEdge::kInternal, "hidden_properties"); |
| CHECK_EQ(NULL, hidden_props); |
| |
| v8::Handle<v8::Value> cHandle = env->Global()->Get(v8::String::New("c")); |
| CHECK(!cHandle.IsEmpty() && cHandle->IsObject()); |
| cHandle->ToObject()->GetIdentityHash(); |
| |
| snapshot = v8::HeapProfiler::TakeSnapshot( |
| v8_str("HiddenPropertiesFastCase2")); |
| global = GetGlobalObject(snapshot); |
| c = GetProperty(global, v8::HeapGraphEdge::kProperty, "c"); |
| CHECK_NE(NULL, c); |
| hidden_props = GetProperty(c, v8::HeapGraphEdge::kInternal, |
| "hidden_properties"); |
| CHECK_NE(NULL, hidden_props); |
| } |
| |
| bool HasWeakEdge(const v8::HeapGraphNode* node) { |
| for (int i = 0; i < node->GetChildrenCount(); ++i) { |
| const v8::HeapGraphEdge* handle_edge = node->GetChild(i); |
| if (handle_edge->GetType() == v8::HeapGraphEdge::kWeak) return true; |
| } |
| return false; |
| } |
| |
| |
| bool HasWeakGlobalHandle() { |
| const v8::HeapSnapshot* snapshot = |
| v8::HeapProfiler::TakeSnapshot(v8_str("weaks")); |
| const v8::HeapGraphNode* gc_roots = GetNode( |
| snapshot->GetRoot(), v8::HeapGraphNode::kObject, "(GC roots)"); |
| CHECK_NE(NULL, gc_roots); |
| const v8::HeapGraphNode* global_handles = GetNode( |
| gc_roots, v8::HeapGraphNode::kObject, "(Global handles)"); |
| CHECK_NE(NULL, global_handles); |
| return HasWeakEdge(global_handles); |
| } |
| |
| |
| static void PersistentHandleCallback(v8::Persistent<v8::Value> handle, void*) { |
| handle.Dispose(); |
| } |
| |
| |
| TEST(WeakGlobalHandle) { |
| v8::HandleScope scope; |
| LocalContext env; |
| |
| CHECK(!HasWeakGlobalHandle()); |
| |
| v8::Persistent<v8::Object> handle = |
| v8::Persistent<v8::Object>::New(v8::Object::New()); |
| handle.MakeWeak(NULL, PersistentHandleCallback); |
| |
| CHECK(HasWeakGlobalHandle()); |
| } |
| |
| |
| TEST(WeakGlobalContextRefs) { |
| v8::HandleScope scope; |
| LocalContext env; |
| |
| const v8::HeapSnapshot* snapshot = |
| v8::HeapProfiler::TakeSnapshot(v8_str("weaks")); |
| const v8::HeapGraphNode* gc_roots = GetNode( |
| snapshot->GetRoot(), v8::HeapGraphNode::kObject, "(GC roots)"); |
| CHECK_NE(NULL, gc_roots); |
| const v8::HeapGraphNode* global_handles = GetNode( |
| gc_roots, v8::HeapGraphNode::kObject, "(Global handles)"); |
| CHECK_NE(NULL, global_handles); |
| const v8::HeapGraphNode* global_context = GetNode( |
| global_handles, v8::HeapGraphNode::kHidden, "system / GlobalContext"); |
| CHECK_NE(NULL, global_context); |
| CHECK(HasWeakEdge(global_context)); |
| } |
| |
| |
| TEST(SfiAndJsFunctionWeakRefs) { |
| v8::HandleScope scope; |
| LocalContext env; |
| |
| CompileRun( |
| "fun = (function (x) { return function () { return x + 1; } })(1);"); |
| const v8::HeapSnapshot* snapshot = |
| v8::HeapProfiler::TakeSnapshot(v8_str("fun")); |
| const v8::HeapGraphNode* global = GetGlobalObject(snapshot); |
| CHECK_NE(NULL, global); |
| const v8::HeapGraphNode* fun = |
| GetProperty(global, v8::HeapGraphEdge::kProperty, "fun"); |
| CHECK(HasWeakEdge(fun)); |
| const v8::HeapGraphNode* shared = |
| GetProperty(fun, v8::HeapGraphEdge::kInternal, "shared"); |
| CHECK(HasWeakEdge(shared)); |
| } |
| |
| |
| TEST(NoDebugObjectInSnapshot) { |
| v8::HandleScope scope; |
| LocalContext env; |
| |
| v8::internal::Isolate::Current()->debug()->Load(); |
| CompileRun("foo = {};"); |
| const v8::HeapSnapshot* snapshot = |
| v8::HeapProfiler::TakeSnapshot(v8_str("snapshot")); |
| const v8::HeapGraphNode* root = snapshot->GetRoot(); |
| int globals_count = 0; |
| for (int i = 0; i < root->GetChildrenCount(); ++i) { |
| const v8::HeapGraphEdge* edge = root->GetChild(i); |
| if (edge->GetType() == v8::HeapGraphEdge::kShortcut) { |
| ++globals_count; |
| const v8::HeapGraphNode* global = edge->GetToNode(); |
| const v8::HeapGraphNode* foo = |
| GetProperty(global, v8::HeapGraphEdge::kProperty, "foo"); |
| CHECK_NE(NULL, foo); |
| } |
| } |
| CHECK_EQ(1, globals_count); |
| } |
| |
| |
| TEST(PersistentHandleCount) { |
| v8::HandleScope scope; |
| LocalContext env; |
| |
| // V8 also uses global handles internally, so we can't test for an absolute |
| // number. |
| int global_handle_count = v8::HeapProfiler::GetPersistentHandleCount(); |
| |
| // Create some persistent handles. |
| v8::Persistent<v8::String> p_AAA = |
| v8::Persistent<v8::String>::New(v8_str("AAA")); |
| CHECK_EQ(global_handle_count + 1, |
| v8::HeapProfiler::GetPersistentHandleCount()); |
| v8::Persistent<v8::String> p_BBB = |
| v8::Persistent<v8::String>::New(v8_str("BBB")); |
| CHECK_EQ(global_handle_count + 2, |
| v8::HeapProfiler::GetPersistentHandleCount()); |
| v8::Persistent<v8::String> p_CCC = |
| v8::Persistent<v8::String>::New(v8_str("CCC")); |
| CHECK_EQ(global_handle_count + 3, |
| v8::HeapProfiler::GetPersistentHandleCount()); |
| |
| // Dipose the persistent handles in a different order. |
| p_AAA.Dispose(); |
| CHECK_EQ(global_handle_count + 2, |
| v8::HeapProfiler::GetPersistentHandleCount()); |
| p_CCC.Dispose(); |
| CHECK_EQ(global_handle_count + 1, |
| v8::HeapProfiler::GetPersistentHandleCount()); |
| p_BBB.Dispose(); |
| CHECK_EQ(global_handle_count, v8::HeapProfiler::GetPersistentHandleCount()); |
| } |
| |
| |
| TEST(AllStrongGcRootsHaveNames) { |
| v8::HandleScope scope; |
| LocalContext env; |
| |
| CompileRun("foo = {};"); |
| const v8::HeapSnapshot* snapshot = |
| v8::HeapProfiler::TakeSnapshot(v8_str("snapshot")); |
| const v8::HeapGraphNode* gc_roots = GetNode( |
| snapshot->GetRoot(), v8::HeapGraphNode::kObject, "(GC roots)"); |
| CHECK_NE(NULL, gc_roots); |
| const v8::HeapGraphNode* strong_roots = GetNode( |
| gc_roots, v8::HeapGraphNode::kObject, "(Strong roots)"); |
| CHECK_NE(NULL, strong_roots); |
| for (int i = 0; i < strong_roots->GetChildrenCount(); ++i) { |
| const v8::HeapGraphEdge* edge = strong_roots->GetChild(i); |
| CHECK_EQ(v8::HeapGraphEdge::kInternal, edge->GetType()); |
| v8::String::AsciiValue name(edge->GetName()); |
| CHECK(isalpha(**name)); |
| } |
| } |
| |
| |
| TEST(NoRefsToNonEssentialEntries) { |
| v8::HandleScope scope; |
| LocalContext env; |
| CompileRun("global_object = {};\n"); |
| const v8::HeapSnapshot* snapshot = |
| v8::HeapProfiler::TakeSnapshot(v8_str("snapshot")); |
| const v8::HeapGraphNode* global = GetGlobalObject(snapshot); |
| const v8::HeapGraphNode* global_object = |
| GetProperty(global, v8::HeapGraphEdge::kProperty, "global_object"); |
| CHECK_NE(NULL, global_object); |
| const v8::HeapGraphNode* properties = |
| GetProperty(global_object, v8::HeapGraphEdge::kInternal, "properties"); |
| CHECK_EQ(NULL, properties); |
| const v8::HeapGraphNode* elements = |
| GetProperty(global_object, v8::HeapGraphEdge::kInternal, "elements"); |
| CHECK_EQ(NULL, elements); |
| } |