michael@0: // -*- mode: c++ -*-
michael@0: 
michael@0: // Copyright (c) 2010 Google Inc. All Rights Reserved.
michael@0: //
michael@0: // Redistribution and use in source and binary forms, with or without
michael@0: // modification, are permitted provided that the following conditions are
michael@0: // met:
michael@0: //
michael@0: //     * Redistributions of source code must retain the above copyright
michael@0: // notice, this list of conditions and the following disclaimer.
michael@0: //     * Redistributions in binary form must reproduce the above
michael@0: // copyright notice, this list of conditions and the following disclaimer
michael@0: // in the documentation and/or other materials provided with the
michael@0: // distribution.
michael@0: //     * Neither the name of Google Inc. nor the names of its
michael@0: // contributors may be used to endorse or promote products derived from
michael@0: // this software without specific prior written permission.
michael@0: //
michael@0: // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
michael@0: // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
michael@0: // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
michael@0: // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
michael@0: // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
michael@0: // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
michael@0: // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
michael@0: // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
michael@0: // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
michael@0: // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
michael@0: // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
michael@0: 
michael@0: // Original author: Jim Blandy <jimb@mozilla.com> <jimb@red-bean.com>
michael@0: 
michael@0: // dwarf2diehander_unittest.cc: Unit tests for google_breakpad::DIEDispatcher.
michael@0: 
michael@0: #include <string>
michael@0: #include <utility>
michael@0: 
michael@0: #include "breakpad_googletest_includes.h"
michael@0: 
michael@0: #include "common/dwarf/dwarf2diehandler.h"
michael@0: #include "common/using_std_string.h"
michael@0: 
michael@0: using std::make_pair;
michael@0: 
michael@0: using ::testing::_;
michael@0: using ::testing::ContainerEq;
michael@0: using ::testing::ElementsAreArray;
michael@0: using ::testing::Eq;
michael@0: using ::testing::InSequence;
michael@0: using ::testing::Return;
michael@0: using ::testing::Sequence;
michael@0: using ::testing::StrEq;
michael@0: 
michael@0: using dwarf2reader::DIEDispatcher;
michael@0: using dwarf2reader::DIEHandler;
michael@0: using dwarf2reader::DwarfAttribute;
michael@0: using dwarf2reader::DwarfForm;
michael@0: using dwarf2reader::DwarfTag;
michael@0: using dwarf2reader::RootDIEHandler;
michael@0: 
michael@0: class MockDIEHandler: public DIEHandler {
michael@0:  public:
michael@0:   MOCK_METHOD3(ProcessAttributeUnsigned,
michael@0:                void(DwarfAttribute, DwarfForm, uint64));
michael@0:   MOCK_METHOD3(ProcessAttributeSigned,
michael@0:                void(DwarfAttribute, DwarfForm, int64));
michael@0:   MOCK_METHOD3(ProcessAttributeReference,
michael@0:                void(DwarfAttribute, DwarfForm, uint64));
michael@0:   MOCK_METHOD4(ProcessAttributeBuffer,
michael@0:                void(DwarfAttribute, DwarfForm, const char *, uint64));
michael@0:   MOCK_METHOD3(ProcessAttributeString,
michael@0:                void(DwarfAttribute, DwarfForm, const string &));
michael@0:   MOCK_METHOD3(ProcessAttributeSignature,
michael@0:                void(DwarfAttribute, DwarfForm, uint64));
michael@0:   MOCK_METHOD0(EndAttributes, bool());
michael@0:   MOCK_METHOD2(FindChildHandler, DIEHandler *(uint64, DwarfTag));
michael@0:   MOCK_METHOD0(Finish, void());
michael@0: };
michael@0: 
michael@0: class MockRootDIEHandler: public RootDIEHandler {
michael@0:  public:
michael@0:   MOCK_METHOD3(ProcessAttributeUnsigned,
michael@0:                void(DwarfAttribute, DwarfForm, uint64));
michael@0:   MOCK_METHOD3(ProcessAttributeSigned,
michael@0:                void(DwarfAttribute, DwarfForm, int64));
michael@0:   MOCK_METHOD3(ProcessAttributeReference,
michael@0:                void(DwarfAttribute, DwarfForm, uint64));
michael@0:   MOCK_METHOD4(ProcessAttributeBuffer,
michael@0:                void(DwarfAttribute, DwarfForm, const char *, uint64));
michael@0:   MOCK_METHOD3(ProcessAttributeString,
michael@0:                void(DwarfAttribute, DwarfForm, const string &));
michael@0:   MOCK_METHOD3(ProcessAttributeSignature,
michael@0:                void(DwarfAttribute, DwarfForm, uint64));
michael@0:   MOCK_METHOD0(EndAttributes, bool());
michael@0:   MOCK_METHOD2(FindChildHandler, DIEHandler *(uint64, DwarfTag));
michael@0:   MOCK_METHOD0(Finish, void());
michael@0:   MOCK_METHOD5(StartCompilationUnit, bool(uint64, uint8, uint8, uint64, uint8));
michael@0:   MOCK_METHOD2(StartRootDIE, bool(uint64, DwarfTag));
michael@0: };
michael@0: 
michael@0: // If the handler elects to skip the compilation unit, the dispatcher
michael@0: // should tell the reader so.
michael@0: TEST(Dwarf2DIEHandler, SkipCompilationUnit) {
michael@0:   Sequence s;
michael@0:   MockRootDIEHandler mock_root_handler;
michael@0:   DIEDispatcher die_dispatcher(&mock_root_handler);
michael@0: 
michael@0:   EXPECT_CALL(mock_root_handler,
michael@0:               StartCompilationUnit(0x8d42aed77cfccf3eLL,
michael@0:                                    0x89, 0xdc,
michael@0:                                    0x2ecb4dc778a80f21LL,
michael@0:                                    0x66))
michael@0:       .InSequence(s)
michael@0:       .WillOnce(Return(false));
michael@0: 
michael@0:   EXPECT_FALSE(die_dispatcher.StartCompilationUnit(0x8d42aed77cfccf3eLL,
michael@0:                                                    0x89, 0xdc,
michael@0:                                                    0x2ecb4dc778a80f21LL,
michael@0:                                                    0x66));
michael@0: }
michael@0: 
michael@0: // If the handler elects to skip the root DIE, the dispatcher should
michael@0: // tell the reader so.
michael@0: TEST(Dwarf2DIEHandler, SkipRootDIE) {
michael@0:   Sequence s;
michael@0:   MockRootDIEHandler mock_root_handler;
michael@0:   DIEDispatcher die_dispatcher(&mock_root_handler);
michael@0: 
michael@0:   EXPECT_CALL(mock_root_handler,
michael@0:               StartCompilationUnit(0xde8994029fc8b999LL, 0xf4, 0x02,
michael@0:                                    0xb00febffa76e2b2bLL, 0x5c))
michael@0:       .InSequence(s)
michael@0:       .WillOnce(Return(true));
michael@0:   EXPECT_CALL(mock_root_handler,
michael@0:               StartRootDIE(0x7d08242b4b510cf2LL, (DwarfTag) 0xb4f98da6))
michael@0:       .InSequence(s)
michael@0:       .WillOnce(Return(false));
michael@0: 
michael@0:   EXPECT_TRUE(die_dispatcher.StartCompilationUnit(0xde8994029fc8b999LL, 
michael@0:                                                   0xf4, 0x02,
michael@0:                                                   0xb00febffa76e2b2bLL, 0x5c));
michael@0:   EXPECT_FALSE(die_dispatcher.StartDIE(0x7d08242b4b510cf2LL,
michael@0:                                        (DwarfTag) 0xb4f98da6));
michael@0:   die_dispatcher.EndDIE(0x7d08242b4b510cf2LL);
michael@0: }
michael@0: 
michael@0: // If the handler elects to skip the root DIE's children, the
michael@0: // dispatcher should tell the reader so --- and avoid deleting the
michael@0: // root handler.
michael@0: TEST(Dwarf2DIEHandler, SkipRootDIEChildren) {
michael@0:   MockRootDIEHandler mock_root_handler;
michael@0:   DIEDispatcher die_dispatcher(&mock_root_handler);
michael@0: 
michael@0:   {
michael@0:     InSequence s;
michael@0: 
michael@0:     EXPECT_CALL(mock_root_handler,
michael@0:                 StartCompilationUnit(0x15d6897480cc65a7LL, 0x26, 0xa0,
michael@0:                                      0x09f8bf0767f91675LL, 0xdb))
michael@0:       .WillOnce(Return(true));
michael@0:     EXPECT_CALL(mock_root_handler,
michael@0:                 StartRootDIE(0x7d08242b4b510cf2LL, (DwarfTag) 0xb4f98da6))
michael@0:       .WillOnce(Return(true));
michael@0:     // Please don't tell me about my children.
michael@0:     EXPECT_CALL(mock_root_handler, EndAttributes())
michael@0:       .WillOnce(Return(false));
michael@0:     EXPECT_CALL(mock_root_handler, Finish())
michael@0:       .WillOnce(Return());
michael@0:   }
michael@0: 
michael@0:   EXPECT_TRUE(die_dispatcher.StartCompilationUnit(0x15d6897480cc65a7LL,
michael@0:                                                   0x26, 0xa0,
michael@0:                                                   0x09f8bf0767f91675LL, 0xdb));
michael@0:   EXPECT_TRUE(die_dispatcher.StartDIE(0x7d08242b4b510cf2LL,
michael@0:                                       (DwarfTag) 0xb4f98da6));
michael@0:   EXPECT_FALSE(die_dispatcher.StartDIE(0x435150ceedccda18LL,
michael@0:                                        (DwarfTag) 0xc3a17bba));
michael@0:   die_dispatcher.EndDIE(0x435150ceedccda18LL);
michael@0:   die_dispatcher.EndDIE(0x7d08242b4b510cf2LL);
michael@0: }
michael@0: 
michael@0: // The dispatcher should pass attribute values through to the die
michael@0: // handler accurately.
michael@0: TEST(Dwarf2DIEHandler, PassAttributeValues) {
michael@0:   MockRootDIEHandler mock_root_handler;
michael@0:   DIEDispatcher die_dispatcher(&mock_root_handler);
michael@0: 
michael@0:   const char buffer[10] = { 0x24, 0x24, 0x35, 0x9a, 0xca,
michael@0:                             0xcf, 0xa8, 0x84, 0xa7, 0x18 };
michael@0:   string str = "\xc8\x26\x2e\x0d\xa4\x9c\x37\xd6\xfb\x1d";
michael@0: 
michael@0:   // Set expectations.
michael@0:   {
michael@0:     InSequence s;
michael@0: 
michael@0:     // We'll like the compilation unit header.
michael@0:     EXPECT_CALL(mock_root_handler,
michael@0:                 StartCompilationUnit(0x8d42aed77cfccf3eLL, 0x89, 0xdc,
michael@0:                                      0x2ecb4dc778a80f21LL, 0x66))
michael@0:       .WillOnce(Return(true));
michael@0: 
michael@0:     // We'll like the root DIE.
michael@0:     EXPECT_CALL(mock_root_handler,
michael@0:                 StartRootDIE(0xe2222da01e29f2a9LL, (DwarfTag) 0x9829445c))
michael@0:       .WillOnce(Return(true));
michael@0: 
michael@0:     // Expect some attribute values.
michael@0:     EXPECT_CALL(mock_root_handler,
michael@0:                 ProcessAttributeUnsigned((DwarfAttribute) 0x1cc0bfed,
michael@0:                                          (DwarfForm) 0x424f1468,
michael@0:                                          0xa592571997facda1ULL))
michael@0:       .WillOnce(Return());
michael@0:     EXPECT_CALL(mock_root_handler,
michael@0:                 ProcessAttributeSigned((DwarfAttribute) 0x43694dc9,
michael@0:                                        (DwarfForm) 0xf6f78901L,
michael@0:                                        0x92602a4e3bf1f446LL))
michael@0:       .WillOnce(Return());
michael@0:     EXPECT_CALL(mock_root_handler,
michael@0:                 ProcessAttributeReference((DwarfAttribute) 0x4033e8cL,
michael@0:                                           (DwarfForm) 0xf66fbe0bL,
michael@0:                                           0x50fddef44734fdecULL))
michael@0:       .WillOnce(Return());
michael@0:     EXPECT_CALL(mock_root_handler,
michael@0:                 ProcessAttributeBuffer((DwarfAttribute) 0x25d7e0af,
michael@0:                                        (DwarfForm) 0xe99a539a,
michael@0:                                        buffer, sizeof(buffer)))
michael@0:       .WillOnce(Return());
michael@0:     EXPECT_CALL(mock_root_handler,
michael@0:                 ProcessAttributeString((DwarfAttribute) 0x310ed065,
michael@0:                                        (DwarfForm) 0x15762fec,
michael@0:                                        StrEq(str)))
michael@0:       .WillOnce(Return());
michael@0:     EXPECT_CALL(mock_root_handler,
michael@0:                 ProcessAttributeSignature((DwarfAttribute) 0x58790d72,
michael@0:                                           (DwarfForm) 0x4159f138,
michael@0:                                           0x94682463613e6a5fULL))
michael@0:       .WillOnce(Return());
michael@0:     EXPECT_CALL(mock_root_handler, EndAttributes())
michael@0:       .WillOnce(Return(true));
michael@0:     EXPECT_CALL(mock_root_handler, FindChildHandler(_, _))
michael@0:       .Times(0);
michael@0:     EXPECT_CALL(mock_root_handler, Finish())
michael@0:       .WillOnce(Return());
michael@0:   }
michael@0: 
michael@0:   // Drive the dispatcher.
michael@0: 
michael@0:   // Report the CU header.
michael@0:   EXPECT_TRUE(die_dispatcher.StartCompilationUnit(0x8d42aed77cfccf3eLL,
michael@0:                                                   0x89, 0xdc,
michael@0:                                                   0x2ecb4dc778a80f21LL,
michael@0:                                                   0x66));
michael@0:   // Report the root DIE.
michael@0:   EXPECT_TRUE(die_dispatcher.StartDIE(0xe2222da01e29f2a9LL,
michael@0:                                       (DwarfTag) 0x9829445c));
michael@0: 
michael@0:   // Report some attribute values.
michael@0:   die_dispatcher.ProcessAttributeUnsigned(0xe2222da01e29f2a9LL,
michael@0:                                           (DwarfAttribute) 0x1cc0bfed,
michael@0:                                           (DwarfForm) 0x424f1468,
michael@0:                                           0xa592571997facda1ULL);
michael@0:   die_dispatcher.ProcessAttributeSigned(0xe2222da01e29f2a9LL,
michael@0:                                         (DwarfAttribute) 0x43694dc9,
michael@0:                                         (DwarfForm) 0xf6f78901,
michael@0:                                         0x92602a4e3bf1f446LL);
michael@0:   die_dispatcher.ProcessAttributeReference(0xe2222da01e29f2a9LL,
michael@0:                                            (DwarfAttribute) 0x4033e8c,
michael@0:                                            (DwarfForm) 0xf66fbe0b,
michael@0:                                            0x50fddef44734fdecULL);
michael@0:   die_dispatcher.ProcessAttributeBuffer(0xe2222da01e29f2a9LL,
michael@0:                                         (DwarfAttribute) 0x25d7e0af,
michael@0:                                         (DwarfForm) 0xe99a539a,
michael@0:                                         buffer, sizeof(buffer));
michael@0:   die_dispatcher.ProcessAttributeString(0xe2222da01e29f2a9LL,
michael@0:                                         (DwarfAttribute) 0x310ed065,
michael@0:                                         (DwarfForm) 0x15762fec,
michael@0:                                         str);
michael@0:   die_dispatcher.ProcessAttributeSignature(0xe2222da01e29f2a9LL,
michael@0:                                            (DwarfAttribute) 0x58790d72,
michael@0:                                            (DwarfForm) 0x4159f138,
michael@0:                                            0x94682463613e6a5fULL);
michael@0: 
michael@0:   // Finish the root DIE (and thus the CU).
michael@0:   die_dispatcher.EndDIE(0xe2222da01e29f2a9LL);
michael@0: }
michael@0: 
michael@0: TEST(Dwarf2DIEHandler, FindAndSkipChildren) {
michael@0:   MockRootDIEHandler mock_root_handler;
michael@0:   MockDIEHandler *mock_child1_handler = new(MockDIEHandler);
michael@0:   MockDIEHandler *mock_child3_handler = new(MockDIEHandler);
michael@0:   DIEDispatcher die_dispatcher(&mock_root_handler);
michael@0: 
michael@0:   {
michael@0:     InSequence s;
michael@0: 
michael@0:     // We'll like the compilation unit header.
michael@0:     EXPECT_CALL(mock_root_handler,
michael@0:                 StartCompilationUnit(0x9ec1e6d05e434a0eLL, 0xeb, 0x21,
michael@0:                                      0x47dd3c764275a216LL, 0xa5))
michael@0:       .WillOnce(Return(true));
michael@0: 
michael@0:     // Root DIE.
michael@0:     {
michael@0:       EXPECT_CALL(mock_root_handler,
michael@0:                   StartRootDIE(0x15f0e06bdfe3c372LL, (DwarfTag) 0xf5d60c59))
michael@0:         .WillOnce(Return(true));
michael@0:       EXPECT_CALL(mock_root_handler,
michael@0:                   ProcessAttributeSigned((DwarfAttribute) 0xf779a642,
michael@0:                                          (DwarfForm) 0x2cb63027,
michael@0:                                          0x18e744661769d08fLL))
michael@0:         .WillOnce(Return());
michael@0:       EXPECT_CALL(mock_root_handler, EndAttributes())
michael@0:         .WillOnce(Return(true));
michael@0: 
michael@0:       // First child DIE.
michael@0:       EXPECT_CALL(mock_root_handler,
michael@0:                   FindChildHandler(0x149f644f8116fe8cLL,
michael@0:                                    (DwarfTag) 0xac2cbd8c))
michael@0:         .WillOnce(Return(mock_child1_handler));
michael@0:       {
michael@0:         EXPECT_CALL(*mock_child1_handler,
michael@0:                     ProcessAttributeSigned((DwarfAttribute) 0xa6fd6f65,
michael@0:                                            (DwarfForm) 0xe4f64c41,
michael@0:                                            0x1b04e5444a55fe67LL))
michael@0:           .WillOnce(Return());
michael@0:         EXPECT_CALL(*mock_child1_handler, EndAttributes())
michael@0:           .WillOnce(Return(false));
michael@0:         // Skip first grandchild DIE and first great-grandchild DIE.
michael@0:         EXPECT_CALL(*mock_child1_handler, Finish())
michael@0:           .WillOnce(Return());
michael@0:       }
michael@0: 
michael@0:       // Second child DIE.  Root handler will decline to return a handler
michael@0:       // for this child.
michael@0:       EXPECT_CALL(mock_root_handler,
michael@0:                   FindChildHandler(0x97412be24875de9dLL,
michael@0:                                    (DwarfTag) 0x505a068b))
michael@0:         .WillOnce(Return((DIEHandler *) NULL));
michael@0: 
michael@0:       // Third child DIE.
michael@0:       EXPECT_CALL(mock_root_handler,
michael@0:                   FindChildHandler(0x753c964c8ab538aeLL,
michael@0:                                    (DwarfTag) 0x8c22970e))
michael@0:         .WillOnce(Return(mock_child3_handler));
michael@0:       {
michael@0:         EXPECT_CALL(*mock_child3_handler,
michael@0:                     ProcessAttributeSigned((DwarfAttribute) 0x4e2b7cfb,
michael@0:                                            (DwarfForm) 0x610b7ae1,
michael@0:                                            0x3ea5c609d7d7560fLL))
michael@0:           .WillOnce(Return());
michael@0:         EXPECT_CALL(*mock_child3_handler, EndAttributes())
michael@0:           .WillOnce(Return(true));
michael@0:         EXPECT_CALL(*mock_child3_handler, Finish())
michael@0:           .WillOnce(Return());
michael@0:       }
michael@0: 
michael@0:       EXPECT_CALL(mock_root_handler, Finish())
michael@0:         .WillOnce(Return());
michael@0:     }
michael@0:   }
michael@0: 
michael@0:     
michael@0:   // Drive the dispatcher.
michael@0: 
michael@0:   // Report the CU header.
michael@0:   EXPECT_TRUE(die_dispatcher
michael@0:               .StartCompilationUnit(0x9ec1e6d05e434a0eLL, 0xeb, 0x21,
michael@0:                                     0x47dd3c764275a216LL, 0xa5));
michael@0:   // Report the root DIE.
michael@0:   {
michael@0:     EXPECT_TRUE(die_dispatcher.StartDIE(0x15f0e06bdfe3c372LL,
michael@0:                                         (DwarfTag) 0xf5d60c59));
michael@0:     die_dispatcher.ProcessAttributeSigned(0x15f0e06bdfe3c372LL,
michael@0:                                           (DwarfAttribute) 0xf779a642,
michael@0:                                           (DwarfForm) 0x2cb63027,
michael@0:                                           0x18e744661769d08fLL);
michael@0: 
michael@0:     // First child DIE.
michael@0:     {
michael@0:       EXPECT_TRUE(die_dispatcher.StartDIE(0x149f644f8116fe8cLL,
michael@0:                                           (DwarfTag) 0xac2cbd8c));
michael@0:       die_dispatcher.ProcessAttributeSigned(0x149f644f8116fe8cLL,
michael@0:                                             (DwarfAttribute) 0xa6fd6f65,
michael@0:                                             (DwarfForm) 0xe4f64c41,
michael@0:                                             0x1b04e5444a55fe67LL);
michael@0: 
michael@0:       // First grandchild DIE.  Will be skipped.
michael@0:       {
michael@0:         EXPECT_FALSE(die_dispatcher.StartDIE(0xd68de1ee0bd29419LL,
michael@0:                                             (DwarfTag) 0x22f05a15));
michael@0:         // First great-grandchild DIE.  Will be skipped without being
michael@0:         // mentioned to any handler.
michael@0:         {
michael@0:           EXPECT_FALSE(die_dispatcher
michael@0:                        .StartDIE(0xb3076285d25cac25LL,
michael@0:                                  (DwarfTag) 0xcff4061b));
michael@0:           die_dispatcher.EndDIE(0xb3076285d25cac25LL);          
michael@0:         }
michael@0:         die_dispatcher.EndDIE(0xd68de1ee0bd29419LL);
michael@0:       }
michael@0:       die_dispatcher.EndDIE(0x149f644f8116fe8cLL);
michael@0:     }
michael@0: 
michael@0:     // Second child DIE.  Root handler will decline to find a handler for it.
michael@0:     {
michael@0:       EXPECT_FALSE(die_dispatcher.StartDIE(0x97412be24875de9dLL,
michael@0:                                            (DwarfTag) 0x505a068b));
michael@0:       die_dispatcher.EndDIE(0x97412be24875de9dLL);
michael@0:     }
michael@0:     
michael@0:     // Third child DIE.
michael@0:     {
michael@0:       EXPECT_TRUE(die_dispatcher.StartDIE(0x753c964c8ab538aeLL,
michael@0:                                           (DwarfTag) 0x8c22970e));
michael@0:       die_dispatcher.ProcessAttributeSigned(0x753c964c8ab538aeLL,
michael@0:                                             (DwarfAttribute) 0x4e2b7cfb,
michael@0:                                             (DwarfForm) 0x610b7ae1,
michael@0:                                             0x3ea5c609d7d7560fLL);
michael@0:       die_dispatcher.EndDIE(0x753c964c8ab538aeLL);
michael@0:     }
michael@0:     
michael@0:     // Finish the root DIE (and thus the CU).
michael@0:     die_dispatcher.EndDIE(0x15f0e06bdfe3c372LL);
michael@0:   }
michael@0: }
michael@0: 
michael@0: // The DIEDispatcher destructor is supposed to delete all handlers on
michael@0: // the stack, except for the root.
michael@0: TEST(Dwarf2DIEHandler, FreeHandlersOnStack) {
michael@0:   MockRootDIEHandler mock_root_handler;
michael@0:   MockDIEHandler *mock_child_handler = new(MockDIEHandler);
michael@0:   MockDIEHandler *mock_grandchild_handler = new(MockDIEHandler);
michael@0: 
michael@0:   {
michael@0:     InSequence s;
michael@0: 
michael@0:     // We'll like the compilation unit header.
michael@0:     EXPECT_CALL(mock_root_handler,
michael@0:                 StartCompilationUnit(0x87b41ba8381cd71cLL, 0xff, 0x89,
michael@0:                                      0x76d392ff393ddda2LL, 0xbf))
michael@0:       .WillOnce(Return(true));
michael@0: 
michael@0:     // Root DIE.
michael@0:     {
michael@0:       EXPECT_CALL(mock_root_handler,
michael@0:                   StartRootDIE(0xbf13b761691ddc91LL, (DwarfTag) 0x98980361))
michael@0:         .WillOnce(Return(true));
michael@0:       EXPECT_CALL(mock_root_handler, EndAttributes())
michael@0:         .WillOnce(Return(true));
michael@0:       
michael@0:       // Child DIE.
michael@0:       EXPECT_CALL(mock_root_handler,
michael@0:                   FindChildHandler(0x058f09240c5fc8c9LL,
michael@0:                                    (DwarfTag) 0x898bf0d0))
michael@0:         .WillOnce(Return(mock_child_handler));
michael@0:       {
michael@0:         EXPECT_CALL(*mock_child_handler, EndAttributes())
michael@0:           .WillOnce(Return(true));
michael@0: 
michael@0:         // Grandchild DIE.
michael@0:         EXPECT_CALL(*mock_child_handler,
michael@0:                     FindChildHandler(0x32dc00c9945dc0c8LL,
michael@0:                                      (DwarfTag) 0x2802d007))
michael@0:           .WillOnce(Return(mock_grandchild_handler));
michael@0:         {
michael@0:           EXPECT_CALL(*mock_grandchild_handler,
michael@0:                       ProcessAttributeSigned((DwarfAttribute) 0x4e2b7cfb,
michael@0:                                              (DwarfForm) 0x610b7ae1,
michael@0:                                              0x3ea5c609d7d7560fLL))
michael@0:             .WillOnce(Return());
michael@0: 
michael@0:           // At this point, we abandon the traversal, so none of the
michael@0:           // usual stuff should get called.
michael@0:           EXPECT_CALL(*mock_grandchild_handler, EndAttributes())
michael@0:             .Times(0);
michael@0:           EXPECT_CALL(*mock_grandchild_handler, Finish())
michael@0:             .Times(0);
michael@0:         }
michael@0: 
michael@0:         EXPECT_CALL(*mock_child_handler, Finish())
michael@0:           .Times(0);
michael@0:       }
michael@0: 
michael@0:       EXPECT_CALL(mock_root_handler, Finish())
michael@0:         .Times(0);
michael@0:     }
michael@0:   }
michael@0: 
michael@0:   // The dispatcher.
michael@0:   DIEDispatcher die_dispatcher(&mock_root_handler);
michael@0:   
michael@0:   // Report the CU header.
michael@0:   EXPECT_TRUE(die_dispatcher
michael@0:               .StartCompilationUnit(0x87b41ba8381cd71cLL, 0xff, 0x89,
michael@0:                                     0x76d392ff393ddda2LL, 0xbf));
michael@0:   // Report the root DIE.
michael@0:   {
michael@0:     EXPECT_TRUE(die_dispatcher.StartDIE(0xbf13b761691ddc91LL,
michael@0:                                         (DwarfTag) 0x98980361));
michael@0: 
michael@0:     // Child DIE.
michael@0:     {
michael@0:       EXPECT_TRUE(die_dispatcher.StartDIE(0x058f09240c5fc8c9LL,
michael@0:                                           (DwarfTag) 0x898bf0d0));
michael@0: 
michael@0:       // Grandchild DIE.
michael@0:       {
michael@0:         EXPECT_TRUE(die_dispatcher.StartDIE(0x32dc00c9945dc0c8LL,
michael@0:                                             (DwarfTag) 0x2802d007));
michael@0:         die_dispatcher.ProcessAttributeSigned(0x32dc00c9945dc0c8LL,
michael@0:                                               (DwarfAttribute) 0x4e2b7cfb,
michael@0:                                               (DwarfForm) 0x610b7ae1,
michael@0:                                               0x3ea5c609d7d7560fLL);
michael@0: 
michael@0:         // Stop the traversal abruptly, so that there will still be
michael@0:         // handlers on the stack when the dispatcher is destructed.
michael@0: 
michael@0:         // No EndDIE call...
michael@0:       }
michael@0:       // No EndDIE call...
michael@0:     }
michael@0:     // No EndDIE call...
michael@0:   }
michael@0: }