1 files changed, 89 insertions, 0 deletions
diff --git a/gnu/llvm/lldb/unittests/debugserver/JSONTest.cpp b/gnu/llvm/lldb/unittests/debugserver/JSONTest.cpp
new file mode 100644
index 00000000000..54f6f96068e
--- /dev/null
+++ b/gnu/llvm/lldb/unittests/debugserver/JSONTest.cpp
@@ -0,0 +1,89 @@
+//===-- JSONTest.cpp --------------------------------------------*- C++ -*-===//
+//
+// 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 "gmock/gmock.h"
+#include "gtest/gtest.h"
+
+#include "JSON.h"
+
+template <typename T>
+void TestJSON(JSONValue *json_val, const std::function<void(T &)> &test_func) {
+  ASSERT_THAT(json_val, testing::NotNull());
+  ASSERT_TRUE(T::classof(json_val));
+  test_func(static_cast<T &>(*json_val));
+}
+
+JSONValue::SP ParseJSON(const char *json_string) {
+  return JSONParser(json_string).ParseJSONValue();
+}
+
+template <typename T>
+void ParseAndTestJSON(
+    const char *json_string,
+    const std::function<void(T &)> &test_func = [](T &) {}) {
+  auto json_val = ParseJSON(json_string);
+  TestJSON<T>(json_val.get(), test_func);
+}
+
+TEST(JSON, Parse) {
+  ParseAndTestJSON<JSONString>("\"foo\"", [](JSONString &string_val) {
+    EXPECT_EQ(string_val.GetData(), "foo");
+  });
+  EXPECT_THAT(ParseJSON("\"foo"), testing::IsNull());
+  ParseAndTestJSON<JSONNumber>("3", [](JSONNumber &number_val) {
+    EXPECT_EQ(number_val.GetAsSigned(), 3);
+    EXPECT_EQ(number_val.GetAsUnsigned(), 3u);
+    EXPECT_EQ(number_val.GetAsDouble(), 3.0);
+  });
+  ParseAndTestJSON<JSONNumber>("-5", [](JSONNumber &number_val) {
+    EXPECT_EQ(number_val.GetAsSigned(), -5);
+    EXPECT_EQ(number_val.GetAsDouble(), -5.0);
+  });
+  ParseAndTestJSON<JSONNumber>("-6.4", [](JSONNumber &number_val) {
+    EXPECT_EQ(number_val.GetAsSigned(), -6);
+    EXPECT_EQ(number_val.GetAsDouble(), -6.4);
+  });
+  EXPECT_THAT(ParseJSON("-1.2.3"), testing::IsNull());
+  ParseAndTestJSON<JSONTrue>("true");
+  ParseAndTestJSON<JSONFalse>("false");
+  ParseAndTestJSON<JSONNull>("null");
+  ParseAndTestJSON<JSONObject>(
+      "{ \"key1\": 4, \"key2\": \"foobar\" }", [](JSONObject &obj_val) {
+        TestJSON<JSONNumber>(obj_val.GetObject("key1").get(),
+                             [](JSONNumber &number_val) {
+                               EXPECT_EQ(number_val.GetAsSigned(), 4);
+                               EXPECT_EQ(number_val.GetAsUnsigned(), 4u);
+                               EXPECT_EQ(number_val.GetAsDouble(), 4.0);
+                             });
+        TestJSON<JSONString>(obj_val.GetObject("key2").get(),
+                             [](JSONString &string_val) {
+                               EXPECT_EQ(string_val.GetData(), "foobar");
+                             });
+      });
+  ParseAndTestJSON<JSONArray>("[1, \"bar\", 3.14]", [](JSONArray &array_val) {
+    EXPECT_EQ(array_val.GetNumElements(), 3u);
+    TestJSON<JSONNumber>(array_val.GetObject(0).get(),
+                         [](JSONNumber &number_val) {
+                           EXPECT_EQ(number_val.GetAsSigned(), 1);
+                           EXPECT_EQ(number_val.GetAsUnsigned(), 1u);
+                           EXPECT_EQ(number_val.GetAsDouble(), 1.0);
+                         });
+    TestJSON<JSONString>(
+        array_val.GetObject(1).get(),
+        [](JSONString &string_val) { EXPECT_EQ(string_val.GetData(), "bar"); });
+    TestJSON<JSONNumber>(array_val.GetObject(2).get(),
+                         [](JSONNumber &number_val) {
+                           EXPECT_EQ(number_val.GetAsSigned(), 3);
+                           EXPECT_EQ(number_val.GetAsUnsigned(), 3u);
+                           EXPECT_EQ(number_val.GetAsDouble(), 3.14);
+                         });
+  });
+  ParseAndTestJSON<JSONArray>("[]", [](JSONArray &array_val) {
+    EXPECT_EQ(array_val.GetNumElements(), 0u);
+  });
+}