diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt index 01496f8..7967292 100644 --- a/tests/CMakeLists.txt +++ b/tests/CMakeLists.txt @@ -56,6 +56,7 @@ if(ENABLE_CJSON_TEST) parse_with_opts compare_tests cjson_add + readme_examples ) option(ENABLE_VALGRIND OFF "Enable the valgrind memory checker for the tests.") diff --git a/tests/readme_examples.c b/tests/readme_examples.c new file mode 100644 index 0000000..f3fa443 --- /dev/null +++ b/tests/readme_examples.c @@ -0,0 +1,258 @@ +/* + 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 +#include +#include + +#include "unity/examples/unity_config.h" +#include "unity/src/unity.h" +#include "common.h" + +static const char *json = "{\n\ +\t\"name\":\t\"Awesome 4K\",\n\ +\t\"resolutions\":\t[{\n\ +\t\t\t\"width\":\t1280,\n\ +\t\t\t\"height\":\t720\n\ +\t\t}, {\n\ +\t\t\t\"width\":\t1920,\n\ +\t\t\t\"height\":\t1080\n\ +\t\t}, {\n\ +\t\t\t\"width\":\t3840,\n\ +\t\t\t\"height\":\t2160\n\ +\t\t}]\n\ +}"; + +static char* create_monitor(void) +{ + const unsigned int resolution_numbers[3][2] = { + {1280, 720}, + {1920, 1080}, + {3840, 2160} + }; + char *string = NULL; + cJSON *name = NULL; + cJSON *resolutions = NULL; + cJSON *resolution = NULL; + cJSON *width = NULL; + cJSON *height = NULL; + size_t index = 0; + + cJSON *monitor = cJSON_CreateObject(); + if (monitor == NULL) + { + goto end; + } + + name = cJSON_CreateString("Awesome 4K"); + if (name == NULL) + { + goto end; + } + /* after creation was successful, immediately add it to the monitor, + * thereby transfering ownership of the pointer to it */ + cJSON_AddItemToObject(monitor, "name", name); + + resolutions = cJSON_CreateArray(); + if (resolutions == NULL) + { + goto end; + } + cJSON_AddItemToObject(monitor, "resolutions", resolutions); + + for (index = 0; index < (sizeof(resolution_numbers) / (2 * sizeof(int))); ++index) + { + resolution = cJSON_CreateObject(); + if (resolution == NULL) + { + goto end; + } + cJSON_AddItemToArray(resolutions, resolution); + + width = cJSON_CreateNumber(resolution_numbers[index][0]); + if (width == NULL) + { + goto end; + } + cJSON_AddItemToObject(resolution, "width", width); + + height = cJSON_CreateNumber(resolution_numbers[index][1]); + if (height == NULL) + { + goto end; + } + cJSON_AddItemToObject(resolution, "height", height); + } + + string = cJSON_Print(monitor); + if (string == NULL) + { + fprintf(stderr, "Failed to print monitor.\n"); + } + +end: + cJSON_Delete(monitor); + return string; +} + +static char *create_monitor_with_helpers(void) +{ + const unsigned int resolution_numbers[3][2] = { + {1280, 720}, + {1920, 1080}, + {3840, 2160} + }; + char *string = NULL; + cJSON *resolutions = NULL; + size_t index = 0; + + cJSON *monitor = cJSON_CreateObject(); + + if (cJSON_AddStringToObject(monitor, "name", "Awesome 4K") == NULL) + { + goto end; + } + + resolutions = cJSON_AddArrayToObject(monitor, "resolutions"); + if (resolutions == NULL) + { + goto end; + } + + for (index = 0; index < (sizeof(resolution_numbers) / (2 * sizeof(int))); ++index) + { + cJSON *resolution = cJSON_CreateObject(); + + if (cJSON_AddNumberToObject(resolution, "width", resolution_numbers[index][0]) == NULL) + { + goto end; + } + + if(cJSON_AddNumberToObject(resolution, "height", resolution_numbers[index][1]) == NULL) + { + goto end; + } + + cJSON_AddItemToArray(resolutions, resolution); + } + + string = cJSON_Print(monitor); + if (string == NULL) { + fprintf(stderr, "Failed to print monitor.\n"); + } + +end: + cJSON_Delete(monitor); + return string; +} + +/* return 1 if the monitor supports full hd, 0 otherwise */ +static int supports_full_hd(const char * const monitor) +{ + const cJSON *resolution = NULL; + const cJSON *resolutions = NULL; + const cJSON *name = NULL; + int status = 0; + cJSON *monitor_json = cJSON_Parse(monitor); + if (monitor_json == NULL) + { + const char *error_ptr = cJSON_GetErrorPtr(); + if (error_ptr != NULL) + { + fprintf(stderr, "Error before: %s\n", error_ptr); + } + status = 0; + goto end; + } + + name = cJSON_GetObjectItemCaseSensitive(monitor_json, "name"); + if (cJSON_IsString(name) && (name->valuestring != NULL)) + { + printf("Checking monitor \"%s\"\n", name->valuestring); + } + + resolutions = cJSON_GetObjectItemCaseSensitive(monitor_json, "resolutions"); + cJSON_ArrayForEach(resolution, resolutions) + { + cJSON *width = cJSON_GetObjectItemCaseSensitive(resolution, "width"); + cJSON *height = cJSON_GetObjectItemCaseSensitive(resolution, "height"); + + if (!cJSON_IsNumber(width) || !cJSON_IsNumber(height)) + { + status = 0; + goto end; + } + + if ((width->valuedouble == 1920) && (height->valuedouble == 1080)) + { + status = 1; + goto end; + } + } + +end: + cJSON_Delete(monitor_json); + return status; +} + +static void create_monitor_should_create_a_monitor(void) +{ + char *monitor = create_monitor(); + + TEST_ASSERT_EQUAL_STRING(monitor, json); + + free(monitor); +} + +static void create_monitor_with_helpers_should_create_a_monitor(void) +{ + char *monitor = create_monitor_with_helpers(); + + TEST_ASSERT_EQUAL_STRING(json, monitor); + + free(monitor); +} + +static void supports_full_hd_should_check_for_full_hd_support(void) +{ + static const char *monitor_without_hd = "{\n\ +\t\t\"name\": \"lame monitor\",\n\ +\t\t\"resolutions\":\t[{\n\ +\t\t\t\"width\":\t640,\n\ +\t\t\t\"height\":\t480\n\ +\t\t}]\n\ +}"; + + TEST_ASSERT(supports_full_hd(json)); + TEST_ASSERT_FALSE(supports_full_hd(monitor_without_hd)); +} + +int main(void) +{ + UNITY_BEGIN(); + + RUN_TEST(create_monitor_should_create_a_monitor); + RUN_TEST(create_monitor_with_helpers_should_create_a_monitor); + RUN_TEST(supports_full_hd_should_check_for_full_hd_support); + + return UNITY_END(); +}