Add simple unit tests as an example

Author: JDevlieghere

lldb/tools/lldb-dap/CMakeLists.txt

@@ -5,9 +5,6 @@ set(LLVM_TARGET_DEFINITIONS Options.td)
 tablegen(LLVM Options.inc -gen-opt-parser-defs)
 add_public_tablegen_target(LLDBDAPOptionsTableGen)
 
-include_directories(${CMAKE_CURRENT_SOURCE_DIR})
-include_directories(${CMAKE_CURRENT_BINARY_DIR})
-
 add_lldb_library(lldbDAP
   Breakpoint.cpp
   BreakpointBase.cpp
@@ -79,6 +76,9 @@ add_lldb_library(lldbDAP
     Support
   )
 
+target_include_directories(lldbDAP
+  PUBLIC ${CMAKE_CURRENT_SOURCE_DIR} ${CMAKE_CURRENT_BINARY_DIR_DIR})
+
 if(LLDB_DAP_WELCOME_MESSAGE)
   target_compile_definitions(lldbDAP
     PRIVATE

lldb/unittests/CMakeLists.txt

@@ -54,6 +54,7 @@ endif()
 add_subdirectory(Breakpoint)
 add_subdirectory(Callback)
 add_subdirectory(Core)
+add_subdirectory(DAP)
 add_subdirectory(DataFormatter)
 add_subdirectory(Disassembler)
 add_subdirectory(Editline)

lldb/unittests/DAP/CMakeLists.txt

@@ -0,0 +1,8 @@
+add_lldb_unittest(DAPTests
+  JSONUtilsTest.cpp
+
+  LINK_LIBS
+    lldbDAP
+  LINK_COMPONENTS
+    Support
+  )

lldb/unittests/DAP/JSONUtilsTest.cpp

@@ -0,0 +1,33 @@
+//===-- JSONUtilsTest.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 "JSONUtils.h"
+#include "lldb/API/SBModule.h"
+#include "lldb/API/SBTarget.h"
+#include "gtest/gtest.h"
+
+using namespace llvm;
+using namespace lldb;
+using namespace lldb_dap;
+
+TEST(JSONUtilsTest, GetAsString) {
+  StringRef str = "foo";
+  json::Value value("foo");
+  EXPECT_EQ(str, GetAsString(value));
+}
+
+TEST(JSONUtilsTest, CreateModule) {
+  SBTarget target;
+  SBModule module;
+
+  json::Value value = CreateModule(target, module);
+  json::Object *object = value.getAsObject();
+
+  ASSERT_NE(object, nullptr);
+  EXPECT_EQ(object->size(), 0UL);
+}