diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index bb7c6fa..ff56a92 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -75,4 +75,28 @@ if(ENABLE_CJSON_TEST)
     endforeach()
 
     add_dependencies(check ${unity_tests})
+
+    if (ENABLE_CJSON_UTILS)
+        #copy test files
+        file(MAKE_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/json-patch-tests")
+        file(GLOB test_files "json-patch-tests/*")
+        file(COPY ${test_files} DESTINATION "${CMAKE_CURRENT_BINARY_DIR}/json-patch-tests/")
+
+        set (cjson_utils_tests
+            json_patch_tests)
+
+        foreach (cjson_utils_test ${cjson_utils_tests})
+            add_executable("${cjson_utils_test}" "${cjson_utils_test}.c")
+            target_link_libraries("${cjson_utils_test}" "${CJSON_LIB}" "${CJSON_UTILS_LIB}" unity test-common)
+            if(MEMORYCHECK_COMMAND)
+                add_test(NAME "${cjson_utils_test}"
+                    COMMAND "${MEMORYCHECK_COMMAND}" ${MEMORYCHECK_COMMAND_OPTIONS} "${CMAKE_CURRENT_BINARY_DIR}/${cjson_utils_test}")
+            else()
+                add_test(NAME "${cjson_utils_test}"
+                    COMMAND "./${cjson_utils_test}")
+            endif()
+        endforeach()
+
+        add_dependencies(check ${cjson_utils_tests})
+    endif()
 endif()
diff --git a/tests/json_patch_tests.c b/tests/json_patch_tests.c
new file mode 100644
index 0000000..a1c03eb
--- /dev/null
+++ b/tests/json_patch_tests.c
@@ -0,0 +1,162 @@
+/*
+  Copyright (c) 2009-2017 Dave Gamble and cJSON contributors
+
+  Permission is hereby granted, free of charge, to any person obtaining a copy
+  of this software and associated documentation files (the "Software"), to deal
+  in the Software without restriction, including without limitation the rights
+  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+  copies of the Software, and to permit persons to whom the Software is
+  furnished to do so, subject to the following conditions:
+
+  The above copyright notice and this permission notice shall be included in
+  all copies or substantial portions of the Software.
+
+  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+  THE SOFTWARE.
+*/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "unity/examples/unity_config.h"
+#include "unity/src/unity.h"
+#include "common.h"
+#include "../cJSON_Utils.h"
+
+static cJSON *parse_test_file(const char * const filename)
+{
+    char *file = NULL;
+    cJSON *json = NULL;
+
+    file = read_file(filename);
+    TEST_ASSERT_NOT_NULL_MESSAGE(file, "Failed to read file.");
+
+    json = cJSON_Parse(file);
+    TEST_ASSERT_NOT_NULL_MESSAGE(json, "Failed to parse test json.");
+    TEST_ASSERT_TRUE_MESSAGE(cJSON_IsArray(json), "Json is not an array.");
+
+    free(file);
+
+    return json;
+}
+
+static cJSON_bool test_apply_patch(const cJSON * const test)
+{
+    cJSON *doc = NULL;
+    cJSON *patch = NULL;
+    cJSON *expected = NULL;
+    cJSON *error_element = NULL;
+    cJSON *comment = NULL;
+    cJSON *disabled = NULL;
+
+    cJSON *object = NULL;
+    cJSON_bool successful = false;
+
+    /* extract all the data out of the test */
+    comment = cJSON_GetObjectItem(test, "comment");
+    if (cJSON_IsString(comment))
+    {
+        printf("Testing \"%s\"\n", comment->valuestring);
+    }
+    else
+    {
+        printf("Testing unkown\n");
+    }
+
+    disabled = cJSON_GetObjectItem(test, "disabled");
+    if (cJSON_IsTrue(disabled))
+    {
+        printf("SKIPPED\n");
+        return true;
+    }
+
+    doc = cJSON_GetObjectItem(test, "doc");
+    TEST_ASSERT_NOT_NULL_MESSAGE(doc, "No \"doc\" in the test.");
+    patch = cJSON_GetObjectItem(test, "patch");
+    TEST_ASSERT_NOT_NULL_MESSAGE(patch, "No \"patch\"in the test.");
+    /* Make a working copy of 'doc' */
+    object = cJSON_Duplicate(doc, true);
+    TEST_ASSERT_NOT_NULL(object);
+
+    expected = cJSON_GetObjectItem(test, "expected");
+    error_element = cJSON_GetObjectItem(test, "error");
+    if (error_element != NULL)
+    {
+        /* excepting an error */
+        TEST_ASSERT_TRUE_MESSAGE(0 != cJSONUtils_ApplyPatches(object, patch), "Test didn't fail as it's supposed to.");
+
+        successful = true;
+    }
+    else
+    {
+        /* apply the patch */
+        TEST_ASSERT_EQUAL_INT_MESSAGE(0, cJSONUtils_ApplyPatches(object, patch), "Failed to apply patches.");
+        successful = true;
+
+        if (expected != NULL)
+        {
+            successful = cJSON_Compare(object, expected, true);
+        }
+    }
+
+    cJSON_Delete(object);
+
+    if (successful)
+    {
+        printf("OK\n");
+    }
+    else
+    {
+        printf("FAILED\n");
+    }
+
+    return successful;
+}
+
+static void cjson_utils_should_pass_json_patch_test_tests(void)
+{
+    cJSON *tests = parse_test_file("json-patch-tests/tests.json");
+    cJSON *test = NULL;
+
+    cJSON_bool failed = false;
+    cJSON_ArrayForEach(test, tests)
+    {
+        failed |= !test_apply_patch(test);
+    }
+
+    cJSON_Delete(tests);
+
+    TEST_ASSERT_FALSE_MESSAGE(failed, "Some tests failed.");
+}
+
+static void cjson_utils_should_pass_json_patch_test_spec_tests(void)
+{
+    cJSON *tests = parse_test_file("json-patch-tests/spec_tests.json");
+    cJSON *test = NULL;
+
+    cJSON_bool failed = false;
+    cJSON_ArrayForEach(test, tests)
+    {
+        failed |= !test_apply_patch(test);
+    }
+
+    cJSON_Delete(tests);
+
+    TEST_ASSERT_FALSE_MESSAGE(failed, "Some tests failed.");
+}
+
+int main(void)
+{
+    UNITY_BEGIN();
+
+    RUN_TEST(cjson_utils_should_pass_json_patch_test_tests);
+    RUN_TEST(cjson_utils_should_pass_json_patch_test_spec_tests);
+
+    return UNITY_END();
+}