[lldb-dap] DataBreakpointInfoArguments make frameId optional. (llvm#162845)

Add unittest for `DataBreakpointInfoArguments`

(cherry picked from commit 92f1af3)

Author: da-viper

lldb/tools/lldb-dap/Protocol/ProtocolRequests.cpp

@@ -461,7 +461,7 @@ bool fromJSON(const json::Value &Params, DataBreakpointInfoArguments &DBIA,
               json::Path P) {
   json::ObjectMapper O(Params, P);
   return O && O.map("variablesReference", DBIA.variablesReference) &&
-         O.map("name", DBIA.name) && O.map("frameId", DBIA.frameId) &&
+         O.map("name", DBIA.name) && O.mapOptional("frameId", DBIA.frameId) &&
          O.map("bytes", DBIA.bytes) && O.map("asAddress", DBIA.asAddress) &&
          O.map("mode", DBIA.mode);
 }

lldb/unittests/DAP/ProtocolTypesTest.cpp

@@ -1101,3 +1101,28 @@ TEST(ProtocolTypesTest, MemoryEventBody) {
 })";
   EXPECT_EQ(json, pp(body));
 }
+
+TEST(ProtocolTypesTest, DataBreakpointInfoArguments) {
+  llvm::Expected<DataBreakpointInfoArguments> expected =
+      parse<DataBreakpointInfoArguments>(R"({
+    "name": "data",
+    "variablesReference": 8,
+    "frameId": 9,
+    "bytes": 10,
+    "asAddress": false,
+    "mode": "source"
+  })");
+  ASSERT_THAT_EXPECTED(expected, llvm::Succeeded());
+  EXPECT_EQ(expected->name, "data");
+  EXPECT_EQ(expected->variablesReference, 8);
+  EXPECT_EQ(expected->frameId, 9u);
+  EXPECT_EQ(expected->bytes, 10);
+  EXPECT_EQ(expected->asAddress, false);
+  EXPECT_EQ(expected->mode, "source");
+
+  // Check required keys.
+  EXPECT_THAT_EXPECTED(parse<DataBreakpointInfoArguments>(R"({})"),
+                       FailedWithMessage("missing value at (root).name"));
+  EXPECT_THAT_EXPECTED(parse<DataBreakpointInfoArguments>(R"({"name":"data"})"),
+                       llvm::Succeeded());
+}