Add even more tests

tests/json_tests_complex.c

@@ -0,0 +1,119 @@
+#include <stdio.h>
+#include <string.h>
+
+#include <unity.h>
+
+#include <json.h>
+
+static FILE* tmp = nullptr;
+static char buffer[1024];
+
+static Json json;
+
+void setUp()
+{
+    tmp = tmpfile();
+    TEST_ASSERT_NOT_NULL(tmp);
+
+    json = json_init(tmp, INDENT_TAB);
+}
+
+void tearDown()
+{
+    json_free(&json);
+
+    if (tmp) {
+        fclose(tmp);
+        tmp = nullptr;
+    }
+}
+
+struct Person
+{
+    const char* name;
+    int age;
+};
+
+struct Status
+{
+    const char* description;
+    bool is_success;
+};
+
+struct PersonsResult
+{
+    struct Status status;
+    int length;
+    struct Person* persons;
+};
+
+void test_json_complex()
+{
+    struct Person persons[4] = {
+        { .name = "Alice", .age = 35 },
+        { .name = "Bob", .age = 67 },
+        { .name = "Patricia", .age = 54 },
+        { .name = "Jake", .age = 16 },
+    };
+
+    struct PersonsResult persons_result = {
+        .status = { .description = "ok", .is_success = true },
+        .length = sizeof(persons) / sizeof(struct Person),
+        .persons = persons,
+    };
+
+    json_begin_object(&json);
+    {
+        json_add_object_field(&json, "status");
+        json_begin_object(&json);
+        {
+            json_add_object_field(&json, "description");
+            json_add_string(&json, persons_result.status.description);
+
+            json_add_object_field(&json, "is_success");
+            json_add_bool(&json, persons_result.status.is_success);
+        }
+        json_end_object(&json);
+
+        json_add_object_field(&json, "length");
+        json_add_long(&json, persons_result.length);
+
+        json_add_object_field(&json, "persons");
+        json_begin_array(&json);
+        {
+            for (auto i = 0; i < persons_result.length; ++i)
+            {
+                auto person = persons_result.persons[i];
+
+                json_begin_object(&json);
+                {
+                    json_add_object_field(&json, "name");
+                    json_add_string(&json, person.name);
+
+                    json_add_object_field(&json, "age");
+                    json_add_long(&json, person.age);
+                }
+                json_end_object(&json);
+            }
+        }
+        json_end_array(&json);
+    }
+    json_end_object(&json);
+    fflush(tmp);
+    rewind(tmp);
+
+    auto n = fread(buffer, 1, sizeof(buffer) - 1, tmp);
+    buffer[n] = '\0';
+
+    TEST_ASSERT_EQUAL_STRING("{\n\t\"status\": {\n\t\t\"description\": \"ok\",\n\t\t\"is_success\": true\n\t},\n\t\"length\": 4,\n\t\"persons\": [\n\t\t{\n\t\t\t\"name\": \"Alice\",\n\t\t\t\"age\": 35\n\t\t},\n\t\t{\n\t\t\t\"name\": \"Bob\",\n\t\t\t\"age\": 67\n\t\t},\n\t\t{\n\t\t\t\"name\": \"Patricia\",\n\t\t\t\"age\": 54\n\t\t},\n\t\t{\n\t\t\t\"name\": \"Jake\",\n\t\t\t\"age\": 16\n\t\t}\n\t]\n}", buffer);
+}
+
+int main()
+{
+    UNITY_BEGIN();
+    {
+        RUN_TEST(test_json_complex);
+    }
+    return UNITY_END();
+}
+