diff --git a/test/JsonArray_Invalid_Tests.cpp b/test/JsonArray_Invalid_Tests.cpp
new file mode 100644
index 00000000..a07f74cc
--- /dev/null
+++ b/test/JsonArray_Invalid_Tests.cpp
@@ -0,0 +1,36 @@
+// Copyright Benoit Blanchon 2014
+// MIT License
+//
+// Arduino JSON library
+// https://github.com/bblanchon/ArduinoJson
+
+#include <gtest/gtest.h>
+#include <ArduinoJson.h>
+
+TEST(JsonArray_Invalid_Tests, AtFails) {
+  ASSERT_FALSE(JsonArray::invalid().at(0).success());
+}
+
+TEST(JsonArray_Invalid_Tests, SubscriptFails) {
+  ASSERT_FALSE(JsonArray::invalid()[0].success());
+}
+
+TEST(JsonArray_Invalid_Tests, AddFails) {
+  JsonArray& array = JsonArray::invalid();
+  array.add(1);
+  ASSERT_EQ(0, array.size());
+}
+
+TEST(JsonArray_Invalid_Tests, CreateNestedArrayFails) {
+  ASSERT_FALSE(JsonArray::invalid().createNestedArray().success());
+}
+
+TEST(JsonArray_Invalid_Tests, CreateNestedObjectFails) {
+  ASSERT_FALSE(JsonArray::invalid().createNestedObject().success());
+}
+
+TEST(JsonArray_Invalid_Tests, PrintToWritesBrackets) {
+  char buffer[32];
+  JsonArray::invalid().printTo(buffer, sizeof(buffer));
+  ASSERT_STREQ("[]", buffer);
+}
\ No newline at end of file
diff --git a/test/JsonObject_Invalid_Tests.cpp b/test/JsonObject_Invalid_Tests.cpp
new file mode 100644
index 00000000..1a5a0afe
--- /dev/null
+++ b/test/JsonObject_Invalid_Tests.cpp
@@ -0,0 +1,36 @@
+// Copyright Benoit Blanchon 2014
+// MIT License
+//
+// Arduino JSON library
+// https://github.com/bblanchon/ArduinoJson
+
+#include <gtest/gtest.h>
+#include <ArduinoJson.h>
+
+TEST(JsonObject_Invalid_Tests, AtFails) {
+  ASSERT_FALSE(JsonObject::invalid().at(0).success());
+}
+
+TEST(JsonObject_Invalid_Tests, SubscriptFails) {
+  ASSERT_FALSE(JsonObject::invalid()[0].success());
+}
+
+TEST(JsonObject_Invalid_Tests, AddFails) {
+  JsonObject& array = JsonObject::invalid();
+  array.add("hello", "world");
+  ASSERT_EQ(0, array.size());
+}
+
+TEST(JsonObject_Invalid_Tests, CreateNestedArrayFails) {
+  ASSERT_FALSE(JsonObject::invalid().createNestedArray("hello").success());
+}
+
+TEST(JsonObject_Invalid_Tests, CreateNestedObjectFails) {
+  ASSERT_FALSE(JsonObject::invalid().createNestedObject("world").success());
+}
+
+TEST(JsonObject_Invalid_Tests, PrintToWritesBraces) {
+  char buffer[32];
+  JsonObject::invalid().printTo(buffer, sizeof(buffer));
+  ASSERT_STREQ("{}", buffer);
+}
\ No newline at end of file