json: add JSON encoder

Part-of: <https://gitlab.freedesktop.org/pulseaudio/pulseaudio/-/merge_requests/525>
This commit is contained in:
Igor V. Kovalenko 2021-03-13 11:23:43 +03:00 committed by PulseAudio Marge Bot
parent 1df4a311d4
commit 0ba768b2e9
5 changed files with 1135 additions and 0 deletions

View file

@ -24,6 +24,7 @@
#include <check.h>
#include <pulse/json.h>
#include <pulse/xmalloc.h>
#include <pulsecore/core-util.h>
START_TEST (string_test) {
@ -50,6 +51,48 @@ START_TEST (string_test) {
}
END_TEST
START_TEST (encoder_string_test) {
const char *test_strings[] = {
"", "test", "test123", "123", "newline\n", " spaces ",
"lots of spaces", "esc\nape", "escape a \" quote",
};
pa_json_object *o;
unsigned int i;
pa_json_encoder *encoder;
const pa_json_object *v;
char *received;
encoder = pa_json_encoder_new();
pa_json_encoder_begin_element_array(encoder);
for (i = 0; i < PA_ELEMENTSOF(test_strings); i++) {
pa_json_encoder_add_element_string(encoder, test_strings[i]);
}
pa_json_encoder_end_array(encoder);
received = pa_json_encoder_to_string_free(encoder);
o = pa_json_parse(received);
pa_xfree(received);
fail_unless(o != NULL);
fail_unless(pa_json_object_get_type(o) == PA_JSON_TYPE_ARRAY);
fail_unless(pa_json_object_get_array_length(o) == PA_ELEMENTSOF(test_strings));
for (i = 0; i < PA_ELEMENTSOF(test_strings); i++) {
v = pa_json_object_get_array_member(o, i);
fail_unless(v != NULL);
fail_unless(pa_json_object_get_type(v) == PA_JSON_TYPE_STRING);
fail_unless(pa_streq(pa_json_object_get_string(v), test_strings[i]));
}
pa_json_object_free(o);
}
END_TEST
START_TEST(int_test) {
pa_json_object *o;
unsigned int i;
@ -75,6 +118,45 @@ START_TEST(int_test) {
}
END_TEST
START_TEST(encoder_int_test) {
const int64_t test_ints[] = { 1, -1, 1234, 0, LONG_MIN, LONG_MAX };
pa_json_object *o;
unsigned int i;
pa_json_encoder *encoder;
const pa_json_object *v;
char *received;
encoder = pa_json_encoder_new();
pa_json_encoder_begin_element_array(encoder);
for (i = 0; i < PA_ELEMENTSOF(test_ints); i++) {
pa_json_encoder_add_element_int(encoder, test_ints[i]);
}
pa_json_encoder_end_array(encoder);
received = pa_json_encoder_to_string_free(encoder);
o = pa_json_parse(received);
pa_xfree(received);
fail_unless(o != NULL);
fail_unless(pa_json_object_get_type(o) == PA_JSON_TYPE_ARRAY);
fail_unless(pa_json_object_get_array_length(o) == PA_ELEMENTSOF(test_ints));
for (i = 0; i < PA_ELEMENTSOF(test_ints); i++) {
v = pa_json_object_get_array_member(o, i);
fail_unless(v != NULL);
fail_unless(pa_json_object_get_type(v) == PA_JSON_TYPE_INT);
fail_unless(pa_json_object_get_int(v) == test_ints[i]);
}
pa_json_object_free(o);
}
END_TEST
START_TEST(double_test) {
pa_json_object *o;
unsigned int i;
@ -104,6 +186,46 @@ START_TEST(double_test) {
}
END_TEST
START_TEST(encoder_double_test) {
const double test_doubles[] = {
1.0, -1.1, 123400.0, 1234.0, 0.1234, -0.1234, 123.4, 123.45, 123450.0,
};
pa_json_object *o;
unsigned int i;
pa_json_encoder *encoder;
const pa_json_object *v;
char *received;
encoder = pa_json_encoder_new();
pa_json_encoder_begin_element_array(encoder);
for (i = 0; i < PA_ELEMENTSOF(test_doubles); i++) {
pa_json_encoder_add_element_double(encoder, test_doubles[i], 6);
}
pa_json_encoder_end_array(encoder);
received = pa_json_encoder_to_string_free(encoder);
o = pa_json_parse(received);
pa_xfree(received);
fail_unless(o != NULL);
fail_unless(pa_json_object_get_type(o) == PA_JSON_TYPE_ARRAY);
fail_unless(pa_json_object_get_array_length(o) == PA_ELEMENTSOF(test_doubles));
for (i = 0; i < PA_ELEMENTSOF(test_doubles); i++) {
v = pa_json_object_get_array_member(o, i);
fail_unless(v != NULL);
fail_unless(pa_json_object_get_type(v) == PA_JSON_TYPE_DOUBLE);
fail_unless(PA_DOUBLE_IS_EQUAL(pa_json_object_get_double(v), test_doubles[i]));
}
pa_json_object_free(o);
}
END_TEST
START_TEST(null_test) {
pa_json_object *o;
@ -116,6 +238,25 @@ START_TEST(null_test) {
}
END_TEST
START_TEST(encoder_null_test) {
pa_json_object *o;
pa_json_encoder *encoder;
char *received;
encoder = pa_json_encoder_new();
pa_json_encoder_add_element_null(encoder);
received = pa_json_encoder_to_string_free(encoder);
o = pa_json_parse(received);
pa_xfree(received);
fail_unless(o != NULL);
fail_unless(pa_json_object_get_type(o) == PA_JSON_TYPE_NULL);
pa_json_object_free(o);
}
END_TEST
START_TEST(bool_test) {
pa_json_object *o;
@ -137,6 +278,46 @@ START_TEST(bool_test) {
}
END_TEST
START_TEST(encoder_bool_test) {
const bool test_bools[] = {
true, false
};
pa_json_object *o;
unsigned int i;
pa_json_encoder *encoder;
const pa_json_object *v;
char *received;
encoder = pa_json_encoder_new();
pa_json_encoder_begin_element_array(encoder);
for (i = 0; i < PA_ELEMENTSOF(test_bools); i++) {
pa_json_encoder_add_element_bool(encoder, test_bools[i]);
}
pa_json_encoder_end_array(encoder);
received = pa_json_encoder_to_string_free(encoder);
o = pa_json_parse(received);
pa_xfree(received);
fail_unless(o != NULL);
fail_unless(pa_json_object_get_type(o) == PA_JSON_TYPE_ARRAY);
fail_unless(pa_json_object_get_array_length(o) == PA_ELEMENTSOF(test_bools));
for (i = 0; i < PA_ELEMENTSOF(test_bools); i++) {
v = pa_json_object_get_array_member(o, i);
fail_unless(v != NULL);
fail_unless(pa_json_object_get_type(v) == PA_JSON_TYPE_BOOL);
fail_unless(PA_DOUBLE_IS_EQUAL(pa_json_object_get_bool(v), test_bools[i]));
}
pa_json_object_free(o);
}
END_TEST
START_TEST(object_test) {
pa_json_object *o;
const pa_json_object *v;
@ -192,6 +373,165 @@ START_TEST(object_test) {
}
END_TEST
START_TEST(object_member_iterator_test) {
pa_json_object *o;
const pa_json_object *v;
const char *k;
void *state;
size_t i;
struct {
bool visited;
const char *key;
pa_json_type type;
union {
const char *str;
int64_t n;
} value;
} expected_entries[] = {
{ .key = "name", .type = PA_JSON_TYPE_STRING, .value.str = "sample 1" },
{ .key = "number", .type = PA_JSON_TYPE_INT, .value.n = 42 },
};
o = pa_json_parse(" { \"name\" : \"sample 1\", \"number\": 42 } ");
fail_unless(o != NULL);
fail_unless(pa_json_object_get_type(o) == PA_JSON_TYPE_OBJECT);
PA_HASHMAP_FOREACH_KV(k, v, pa_json_object_get_object_member_hashmap(o), state) {
fail_unless(k != NULL);
fail_unless(v != NULL);
for (i = 0; i < PA_ELEMENTSOF(expected_entries); ++i) {
if (pa_streq(expected_entries[i].key, k)) {
fail_unless(!expected_entries[i].visited);
fail_unless(expected_entries[i].type == pa_json_object_get_type(v));
switch (expected_entries[i].type) {
case PA_JSON_TYPE_STRING:
fail_unless(pa_streq(expected_entries[i].value.str, pa_json_object_get_string(v)));
break;
case PA_JSON_TYPE_INT:
fail_unless(expected_entries[i].value.n == pa_json_object_get_int(v));
break;
default:
/* unreachable */
fail_unless(false);
break;
}
expected_entries[i].visited = true;
}
}
}
pa_json_object_free(o);
}
END_TEST
START_TEST(encoder_object_test) {
pa_json_object *o;
const pa_json_object *v;
pa_json_encoder *encoder;
char *received;
/* { "name" : "A Person" } */
encoder = pa_json_encoder_new();
pa_json_encoder_begin_element_object(encoder);
pa_json_encoder_add_member_string(encoder, "name", "A Person");
pa_json_encoder_end_object(encoder);
received = pa_json_encoder_to_string_free(encoder);
o = pa_json_parse(received);
pa_xfree(received);
fail_unless(o != NULL);
fail_unless(pa_json_object_get_type(o) == PA_JSON_TYPE_OBJECT);
v = pa_json_object_get_object_member(o, "name");
fail_unless(v != NULL);
fail_unless(pa_json_object_get_type(v) == PA_JSON_TYPE_STRING);
fail_unless(pa_streq(pa_json_object_get_string(v), "A Person"));
pa_json_object_free(o);
/* { "age" : -45.3e-0 } */
encoder = pa_json_encoder_new();
pa_json_encoder_begin_element_object(encoder);
pa_json_encoder_add_member_double(encoder, "age", -45.3e-0, 2);
pa_json_encoder_end_object(encoder);
received = pa_json_encoder_to_string_free(encoder);
o = pa_json_parse(received);
pa_xfree(received);
fail_unless(o != NULL);
fail_unless(pa_json_object_get_type(o) == PA_JSON_TYPE_OBJECT);
v = pa_json_object_get_object_member(o, "age");
fail_unless(v != NULL);
fail_unless(pa_json_object_get_type(v) == PA_JSON_TYPE_DOUBLE);
fail_unless(PA_DOUBLE_IS_EQUAL(pa_json_object_get_double(v), -45.3));
pa_json_object_free(o);
/* {"person":true} */
encoder = pa_json_encoder_new();
pa_json_encoder_begin_element_object(encoder);
pa_json_encoder_add_member_bool(encoder, "person", true);
pa_json_encoder_end_object(encoder);
received = pa_json_encoder_to_string_free(encoder);
o = pa_json_parse(received);
pa_xfree(received);
fail_unless(o != NULL);
fail_unless(pa_json_object_get_type(o) == PA_JSON_TYPE_OBJECT);
v = pa_json_object_get_object_member(o, "person");
fail_unless(v != NULL);
fail_unless(pa_json_object_get_type(v) == PA_JSON_TYPE_BOOL);
fail_unless(pa_json_object_get_bool(v) == true);
pa_json_object_free(o);
}
END_TEST
START_TEST(encoder_member_object_test) {
pa_json_object *o;
const pa_json_object *v;
pa_json_encoder *encoder;
char *received;
/* { "parent": { "child": false } } */
encoder = pa_json_encoder_new();
pa_json_encoder_begin_element_object(encoder);
pa_json_encoder_begin_member_object(encoder, "parent");
pa_json_encoder_add_member_bool(encoder, "child", false);
pa_json_encoder_end_object(encoder);
pa_json_encoder_end_object(encoder);
received = pa_json_encoder_to_string_free(encoder);
o = pa_json_parse(received);
pa_xfree(received);
fail_unless(o != NULL);
fail_unless(pa_json_object_get_type(o) == PA_JSON_TYPE_OBJECT);
v = pa_json_object_get_object_member(o, "parent");
fail_unless(v != NULL);
fail_unless(pa_json_object_get_type(v) == PA_JSON_TYPE_OBJECT);
v = pa_json_object_get_object_member(v, "child");
fail_unless(pa_json_object_get_type(v) == PA_JSON_TYPE_BOOL);
fail_unless(pa_json_object_get_bool(v) == false);
pa_json_object_free(o);
}
END_TEST
START_TEST(array_test) {
pa_json_object *o;
const pa_json_object *v, *v2;
@ -243,6 +583,231 @@ START_TEST(array_test) {
}
END_TEST
START_TEST(encoder_element_array_test) {
pa_json_object *o;
const pa_json_object *v, *v2;
pa_json_encoder *encoder;
char *received;
pa_json_encoder *subobject;
char *subobject_string;
/* [ ] */
encoder = pa_json_encoder_new();
pa_json_encoder_begin_element_array(encoder);
pa_json_encoder_end_array(encoder);
received = pa_json_encoder_to_string_free(encoder);
o = pa_json_parse(received);
pa_xfree(received);
fail_unless(o != NULL);
fail_unless(pa_json_object_get_type(o) == PA_JSON_TYPE_ARRAY);
fail_unless(pa_json_object_get_array_length(o) == 0);
pa_json_object_free(o);
/* ["a member"] */
encoder = pa_json_encoder_new();
pa_json_encoder_begin_element_array(encoder);
pa_json_encoder_add_element_string(encoder, "a member");
pa_json_encoder_end_array(encoder);
received = pa_json_encoder_to_string_free(encoder);
o = pa_json_parse(received);
pa_xfree(received);
fail_unless(o != NULL);
fail_unless(pa_json_object_get_type(o) == PA_JSON_TYPE_ARRAY);
fail_unless(pa_json_object_get_array_length(o) == 1);
v = pa_json_object_get_array_member(o, 0);
fail_unless(v != NULL);
fail_unless(pa_json_object_get_type(v) == PA_JSON_TYPE_STRING);
fail_unless(pa_streq(pa_json_object_get_string(v), "a member"));
pa_json_object_free(o);
/* [\"a member\", 1234.5, { \"another\": true } ] */
subobject = pa_json_encoder_new();
pa_json_encoder_begin_element_object(subobject);
pa_json_encoder_add_member_bool(subobject, "another", true);
pa_json_encoder_end_object(subobject);
subobject_string = pa_json_encoder_to_string_free(subobject);
encoder = pa_json_encoder_new();
pa_json_encoder_begin_element_array(encoder);
pa_json_encoder_add_element_string(encoder, "a member");
pa_json_encoder_add_element_double(encoder, 1234.5, 1);
pa_json_encoder_add_element_raw_json(encoder, subobject_string);
pa_xfree(subobject_string);
pa_json_encoder_end_array(encoder);
received = pa_json_encoder_to_string_free(encoder);
o = pa_json_parse(received);
pa_xfree(received);
fail_unless(o != NULL);
fail_unless(pa_json_object_get_type(o) == PA_JSON_TYPE_ARRAY);
fail_unless(pa_json_object_get_array_length(o) == 3);
v = pa_json_object_get_array_member(o, 0);
fail_unless(v != NULL);
fail_unless(pa_json_object_get_type(v) == PA_JSON_TYPE_STRING);
fail_unless(pa_streq(pa_json_object_get_string(v), "a member"));
v = pa_json_object_get_array_member(o, 1);
fail_unless(v != NULL);
fail_unless(pa_json_object_get_type(v) == PA_JSON_TYPE_DOUBLE);
fail_unless(PA_DOUBLE_IS_EQUAL(pa_json_object_get_double(v), 1234.5));
v = pa_json_object_get_array_member(o, 2);
fail_unless(v != NULL);
fail_unless(pa_json_object_get_type(v) == PA_JSON_TYPE_OBJECT);
v2 =pa_json_object_get_object_member(v, "another");
fail_unless(v2 != NULL);
fail_unless(pa_json_object_get_type(v2) == PA_JSON_TYPE_BOOL);
fail_unless(pa_json_object_get_bool(v2) == true);
pa_json_object_free(o);
}
END_TEST
START_TEST(encoder_member_array_test) {
pa_json_object *o;
unsigned int i;
const pa_json_object *v;
const pa_json_object *e;
pa_json_encoder *encoder;
char *received;
const int64_t test_ints[] = { 1, -1, 1234, 0, LONG_MIN, LONG_MAX };
/* { "parameters": [ 1, -1, 1234, 0, -9223372036854775808, 9223372036854775807 ] } */
encoder = pa_json_encoder_new();
pa_json_encoder_begin_element_object(encoder);
pa_json_encoder_begin_member_array(encoder, "parameters");
for (i = 0; i < PA_ELEMENTSOF(test_ints); i++) {
pa_json_encoder_add_element_int(encoder, test_ints[i]);
}
pa_json_encoder_end_array(encoder);
pa_json_encoder_end_object(encoder);
received = pa_json_encoder_to_string_free(encoder);
o = pa_json_parse(received);
pa_xfree(received);
fail_unless(o != NULL);
fail_unless(pa_json_object_get_type(o) == PA_JSON_TYPE_OBJECT);
v = pa_json_object_get_object_member(o, "parameters");
fail_unless(v != NULL);
fail_unless(pa_json_object_get_type(v) == PA_JSON_TYPE_ARRAY);
fail_unless(pa_json_object_get_array_length(v) == PA_ELEMENTSOF(test_ints));
for (i = 0; i < PA_ELEMENTSOF(test_ints); i++) {
e = pa_json_object_get_array_member(v, i);
fail_unless(e != NULL);
fail_unless(pa_json_object_get_type(e) == PA_JSON_TYPE_INT);
fail_unless(pa_json_object_get_int(e) == test_ints[i]);
}
pa_json_object_free(o);
}
END_TEST
START_TEST(encoder_member_raw_json_test) {
pa_json_object *o;
const pa_json_object *v;
const pa_json_object *e;
pa_json_encoder *encoder;
char *received;
pa_json_encoder *subobject;
char *subobject_string;
/* { "parameters": [1, "a", 2.0] } */
subobject = pa_json_encoder_new();
pa_json_encoder_begin_element_array(subobject);
pa_json_encoder_add_element_int(subobject, 1);
pa_json_encoder_add_element_string(subobject, "a");
pa_json_encoder_add_element_double(subobject, 2.0, 6);
pa_json_encoder_end_array(subobject);
subobject_string = pa_json_encoder_to_string_free(subobject);
encoder = pa_json_encoder_new();
pa_json_encoder_begin_element_object(encoder);
pa_json_encoder_add_member_raw_json(encoder, "parameters", subobject_string);
pa_xfree(subobject_string);
pa_json_encoder_end_object(encoder);
received = pa_json_encoder_to_string_free(encoder);
o = pa_json_parse(received);
pa_xfree(received);
fail_unless(o != NULL);
fail_unless(pa_json_object_get_type(o) == PA_JSON_TYPE_OBJECT);
v = pa_json_object_get_object_member(o, "parameters");
fail_unless(v != NULL);
fail_unless(pa_json_object_get_type(v) == PA_JSON_TYPE_ARRAY);
fail_unless(pa_json_object_get_array_length(v) == 3);
e = pa_json_object_get_array_member(v, 0);
fail_unless(e != NULL);
fail_unless(pa_json_object_get_type(e) == PA_JSON_TYPE_INT);
fail_unless(pa_json_object_get_int(e) == 1);
e = pa_json_object_get_array_member(v, 1);
fail_unless(e != NULL);
fail_unless(pa_json_object_get_type(e) == PA_JSON_TYPE_STRING);
fail_unless(pa_streq(pa_json_object_get_string(e), "a"));
e = pa_json_object_get_array_member(v, 2);
fail_unless(e != NULL);
fail_unless(pa_json_object_get_type(e) == PA_JSON_TYPE_DOUBLE);
fail_unless(PA_DOUBLE_IS_EQUAL(pa_json_object_get_double(e), 2.0));
pa_json_object_free(o);
/* { "parent": { "child": false } } */
subobject = pa_json_encoder_new();
pa_json_encoder_begin_element_object(subobject);
pa_json_encoder_add_member_bool(subobject, "child", false);
pa_json_encoder_end_object(subobject);
subobject_string = pa_json_encoder_to_string_free(subobject);
encoder = pa_json_encoder_new();
pa_json_encoder_begin_element_object(encoder);
pa_json_encoder_add_member_raw_json(encoder, "parent", subobject_string);
pa_xfree(subobject_string);
pa_json_encoder_end_object(encoder);
received = pa_json_encoder_to_string_free(encoder);
o = pa_json_parse(received);
pa_xfree(received);
fail_unless(o != NULL);
fail_unless(pa_json_object_get_type(o) == PA_JSON_TYPE_OBJECT);
v = pa_json_object_get_object_member(o, "parent");
fail_unless(v != NULL);
fail_unless(pa_json_object_get_type(v) == PA_JSON_TYPE_OBJECT);
v = pa_json_object_get_object_member(v, "child");
fail_unless(pa_json_object_get_type(v) == PA_JSON_TYPE_BOOL);
fail_unless(pa_json_object_get_bool(v) == false);
pa_json_object_free(o);
}
END_TEST
START_TEST(bad_test) {
unsigned int i;
const char *bad_parse[] = {
@ -283,12 +848,23 @@ int main(int argc, char *argv[]) {
s = suite_create("JSON");
tc = tcase_create("json");
tcase_add_test(tc, string_test);
tcase_add_test(tc, encoder_string_test);
tcase_add_test(tc, int_test);
tcase_add_test(tc, encoder_int_test);
tcase_add_test(tc, double_test);
tcase_add_test(tc, encoder_double_test);
tcase_add_test(tc, null_test);
tcase_add_test(tc, encoder_null_test);
tcase_add_test(tc, bool_test);
tcase_add_test(tc, encoder_bool_test);
tcase_add_test(tc, object_test);
tcase_add_test(tc, encoder_member_object_test);
tcase_add_test(tc, object_member_iterator_test);
tcase_add_test(tc, encoder_object_test);
tcase_add_test(tc, array_test);
tcase_add_test(tc, encoder_element_array_test);
tcase_add_test(tc, encoder_member_array_test);
tcase_add_test(tc, encoder_member_raw_json_test);
tcase_add_test(tc, bad_test);
suite_add_tcase(s, tc);