add unit test for breakpoint::setcallback

Author: chelcassanova

lldb/unittests/Breakpoint/CMakeLists.txt

@@ -5,6 +5,9 @@ add_lldb_unittest(LLDBBreakpointTests
   LINK_LIBS
     lldbBreakpoint
     lldbCore
+    LLVMTestingSupport
+    lldbUtilityHelpers
+    lldbPluginPlatformMacOSX
   LINK_COMPONENTS
     Support
   )

lldb/unittests/CMakeLists.txt

@@ -52,6 +52,7 @@ if (NOT CMAKE_SYSTEM_NAME MATCHES "Windows")
   add_subdirectory(API)
 endif()
 add_subdirectory(Breakpoint)
+add_subdirectory(Callback)
 add_subdirectory(Core)
 add_subdirectory(DataFormatter)
 add_subdirectory(Disassembler)

lldb/unittests/Callback/CMakeLists.txt

@@ -0,0 +1,12 @@
+add_lldb_unittest(LLDBCallbackTests
+  TestBreakpointSetCallback.cpp
+
+	LINK_LIBS
+    lldbBreakpoint
+    lldbCore
+    LLVMTestingSupport
+    lldbUtilityHelpers
+    lldbPluginPlatformMacOSX
+  LINK_COMPONENTS
+    Support
+  )

lldb/unittests/Callback/TestBreakpointSetCallback.cpp

@@ -0,0 +1,89 @@
+//===-- TestBreakpointSetCallback.cpp
+//--------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "Plugins/Platform/MacOSX/PlatformMacOSX.h"
+#include "Plugins/Platform/MacOSX/PlatformRemoteMacOSX.h"
+#include "TestingSupport/SubsystemRAII.h"
+#include "TestingSupport/TestUtilities.h"
+#include "lldb/Breakpoint/StoppointCallbackContext.h"
+#include "lldb/Core/Debugger.h"
+#include "lldb/Core/Progress.h"
+#include "lldb/Host/FileSystem.h"
+#include "lldb/Host/HostInfo.h"
+#include "lldb/Target/ExecutionContext.h"
+#include "lldb/lldb-private-enumerations.h"
+#include "lldb/lldb-types.h"
+#include "gtest/gtest.h"
+#include <iostream>
+#include <memory>
+#include <mutex>
+
+using namespace lldb_private;
+using namespace lldb;
+
+class BreakpointSetCallbackTest : public ::testing::Test {
+public:
+  static void CheckCallbackArgs(void *baton, StoppointCallbackContext *context,
+                                lldb::user_id_t break_id,
+                                lldb::user_id_t break_loc_id,
+                                lldb::user_id_t expected_breakpoint_id,
+                                lldb::user_id_t expected_breakpoint_loc_id) {
+    EXPECT_TRUE(baton);
+    EXPECT_TRUE(context);
+    EXPECT_EQ(break_id, expected_breakpoint_id);
+    EXPECT_EQ(break_loc_id, expected_breakpoint_loc_id);
+  }
+
+protected:
+  // The debugger's initialization function can't be called with no arguments
+  // so calling it using SubsystemRAII will cause the test build to fail as
+  // SubsystemRAII will call Initialize with no arguments. As such we set it up
+  // here the usual way.
+  void SetUp() override {
+    std::call_once(TestUtilities::g_debugger_initialize_flag,
+                   []() { Debugger::Initialize(nullptr); });
+
+    // Set up the debugger, make sure that was done properly.
+    ArchSpec arch("x86_64-apple-macosx-");
+    Platform::SetHostPlatform(
+        PlatformRemoteMacOSX::CreateInstance(true, &arch));
+
+    m_debugger_sp = Debugger::CreateInstance();
+    m_debugger_sp->GetTargetList().CreateTarget(*m_debugger_sp, "", arch,
+                                                lldb_private::eLoadDependentsNo,
+                                                m_platform_sp, m_target_sp);
+    m_breakpoint_sp = m_target_sp->CreateBreakpoint(0xDEADBEEF, false, false);
+  };
+
+  static bool callback(void *baton, StoppointCallbackContext *context,
+                       lldb::user_id_t break_id, lldb::user_id_t break_loc_id) {
+    BreakpointSetCallbackTest::CheckCallbackArgs(baton, context, break_id,
+                                                 break_loc_id, 0, 0);
+    return true;
+  }
+
+  DebuggerSP m_debugger_sp;
+  PlatformSP m_platform_sp;
+  TargetSP m_target_sp;
+  BreakpointSP m_breakpoint_sp;
+  Event *m_event;
+  const ExecutionContext m_exe_ctx;
+  lldb::user_id_t expected_breakpoint_id;
+  lldb::user_id_t expected_breakpoint_loc_id;
+  SubsystemRAII<FileSystem, HostInfo, PlatformMacOSX, ProgressManager>
+      subsystems;
+};
+
+TEST_F(BreakpointSetCallbackTest, TestBreakpointSetCallback) {
+  void *baton = (void *)"hello";
+  StoppointCallbackContext context(m_event, m_exe_ctx, true);
+  m_breakpoint_sp->SetCallback(BreakpointSetCallbackTest::callback, baton,
+                               false);
+  m_breakpoint_sp->InvokeCallback(&context, 0);
+}