jsmn_test.c

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

static int test_passed = 0;
static int test_failed = 0;

/* Terminate current test with error */
#define fail()  return __LINE__

/* Successfull end of the test case */
#define done() return 0

/* Check single condition */
#define check(cond) do { if (!(cond)) fail(); } while (0)

/* Test runner */
static void test(int (*func)(void), const char *name) {
  int r = func();
  if (r == 0) {
    test_passed++;
  } else {
    test_failed++;
    printf("FAILED: %s (at line %d)\n", name, r);
  }
}

#define TOKEN_EQ(t, tok_start, tok_end, tok_type) \
  ((t).start == tok_start \
   && (t).end == tok_end  \
   && (t).type == (tok_type))

#define TOKEN_STRING(js, t, s) \
  (strncmp(js+(t).start, s, (t).end - (t).start) == 0 \
   && strlen(s) == (t).end - (t).start)

#define TOKEN_PRINT(t) \
  printf("start: %d, end: %d, type: %d, size: %d\n", \
      (t).start, (t).end, (t).type, (t).size)

#define JSMN_STRICT
#include "jsmn.c"

int test_empty() {
  const char *js;
  int r;
  jsmn_parser p;
  jsmntok_t t[10];

  js = "{}";
  jsmn_init(&p);
  r = jsmn_parse(&p, js, strlen(js), t, 10);
  check(r >= 0);
  check(t[0].type == JSMN_OBJECT);
  check(t[0].start == 0 && t[0].end == 2);

  js = "[]";
  jsmn_init(&p);
  r = jsmn_parse(&p, js, strlen(js), t, 10);
  check(r >= 0);
  check(t[0].type == JSMN_ARRAY);
  check(t[0].start == 0 && t[0].end == 2);

  js = "{\"a\":[]}";
  jsmn_init(&p);
  r = jsmn_parse(&p, js, strlen(js), t, 10);
  check(r >= 0);
  check(t[0].type == JSMN_OBJECT && t[0].start == 0 && t[0].end == 8);
  check(t[1].type == JSMN_STRING && t[1].start == 2 && t[1].end == 3);
  check(t[2].type == JSMN_ARRAY && t[2].start == 5 && t[2].end == 7);

  js = "[{},{}]";
  jsmn_init(&p);
  r = jsmn_parse(&p, js, strlen(js), t, 10);
  check(r >= 0);
  check(t[0].type == JSMN_ARRAY && t[0].start == 0 && t[0].end == 7);
  check(t[1].type == JSMN_OBJECT && t[1].start == 1 && t[1].end == 3);
  check(t[2].type == JSMN_OBJECT && t[2].start == 4 && t[2].end == 6);
  return 0;
}

int test_simple() {
  const char *js;
  int r;
  jsmn_parser p;
  jsmntok_t tokens[10];

  js = "{\"a\": 0}";

  jsmn_init(&p);
  r = jsmn_parse(&p, js, strlen(js), tokens, 10);
  check(r >= 0);
  check(TOKEN_EQ(tokens[0], 0, 8, JSMN_OBJECT));
  check(TOKEN_EQ(tokens[1], 2, 3, JSMN_STRING));
  check(TOKEN_EQ(tokens[2], 6, 7, JSMN_PRIMITIVE));

  check(TOKEN_STRING(js, tokens[0], js));
  check(TOKEN_STRING(js, tokens[1], "a"));
  check(TOKEN_STRING(js, tokens[2], "0"));

  jsmn_init(&p);
  js = "[\"a\":{},\"b\":{}]";
  r = jsmn_parse(&p, js, strlen(js), tokens, 10);
  check(r >= 0);

  jsmn_init(&p);
  js = "{\n \"Day\": 26,\n \"Month\": 9,\n \"Year\": 12\n }";
  r = jsmn_parse(&p, js, strlen(js), tokens, 10);
  check(r >= 0);

  return 0;
}

int test_primitive() {
  int r;
  jsmn_parser p;
  jsmntok_t tok[10];
  const char *js;
#ifndef JSMN_STRICT
  js = "\"boolVar\" : true";
  jsmn_init(&p);
  r = jsmn_parse(&p, js, strlen(js), tok, 10);
  check(r >= 0 && tok[0].type == JSMN_STRING
      && tok[1].type == JSMN_PRIMITIVE);
  check(TOKEN_STRING(js, tok[0], "boolVar"));
  check(TOKEN_STRING(js, tok[1], "true"));

  js = "\"boolVar\" : false";
  jsmn_init(&p);
  r = jsmn_parse(&p, js, strlen(js), tok, 10);
  check(r >= 0 && tok[0].type == JSMN_STRING
      && tok[1].type == JSMN_PRIMITIVE);
  check(TOKEN_STRING(js, tok[0], "boolVar"));
  check(TOKEN_STRING(js, tok[1], "false"));

  js = "\"intVar\" : 12345";
  jsmn_init(&p);
  r = jsmn_parse(&p, js, strlen(js), tok, 10);
  check(r >= 0 && tok[0].type == JSMN_STRING
      && tok[1].type == JSMN_PRIMITIVE);
  check(TOKEN_STRING(js, tok[0], "intVar"));
  check(TOKEN_STRING(js, tok[1], "12345"));

  js = "\"floatVar\" : 12.345";
  jsmn_init(&p);
  r = jsmn_parse(&p, js, strlen(js), tok, 10);
  check(r >= 0 && tok[0].type == JSMN_STRING
      && tok[1].type == JSMN_PRIMITIVE);
  check(TOKEN_STRING(js, tok[0], "floatVar"));
  check(TOKEN_STRING(js, tok[1], "12.345"));

  js = "\"nullVar\" : null";
  jsmn_init(&p);
  r = jsmn_parse(&p, js, strlen(js), tok, 10);
  check(r >= 0 && tok[0].type == JSMN_STRING
      && tok[1].type == JSMN_PRIMITIVE);
  check(TOKEN_STRING(js, tok[0], "nullVar"));
  check(TOKEN_STRING(js, tok[1], "null"));
#endif
  return 0;
}

int test_string() {
  int r;
  jsmn_parser p;
  jsmntok_t tok[10];
  const char *js;

  js = "\"strVar\" : \"hello world\"";
  jsmn_init(&p);
  r = jsmn_parse(&p, js, strlen(js), tok, 10);
  check(r >= 0 && tok[0].type == JSMN_STRING
      && tok[1].type == JSMN_STRING);
  check(TOKEN_STRING(js, tok[0], "strVar"));
  check(TOKEN_STRING(js, tok[1], "hello world"));

  js = "\"strVar\" : \"escapes: \\/\\r\\n\\t\\b\\f\\\"\\\\\"";
  jsmn_init(&p);
  r = jsmn_parse(&p, js, strlen(js), tok, 10);
  check(r >= 0 && tok[0].type == JSMN_STRING
      && tok[1].type == JSMN_STRING);
  check(TOKEN_STRING(js, tok[0], "strVar"));
  check(TOKEN_STRING(js, tok[1], "escapes: \\/\\r\\n\\t\\b\\f\\\"\\\\"));

  js = "\"strVar\" : \"\"";
  jsmn_init(&p);
  r = jsmn_parse(&p, js, strlen(js), tok, 10);
  check(r >= 0 && tok[0].type == JSMN_STRING
      && tok[1].type == JSMN_STRING);
  check(TOKEN_STRING(js, tok[0], "strVar"));
  check(TOKEN_STRING(js, tok[1], ""));

  return 0;
}

int test_partial_string() {
  int r;
  jsmn_parser p;
  jsmntok_t tok[10];
  const char *js;

  jsmn_init(&p);
  js = "\"x\": \"va";
  r = jsmn_parse(&p, js, strlen(js), tok, 10);
  check(r == JSMN_ERROR_PART && tok[0].type == JSMN_STRING);
  check(TOKEN_STRING(js, tok[0], "x"));
  check(p.toknext == 1);

  js = "\"x\": \"valu";
  r = jsmn_parse(&p, js, strlen(js), tok, 10);
  check(r == JSMN_ERROR_PART && tok[0].type == JSMN_STRING);
  check(TOKEN_STRING(js, tok[0], "x"));
  check(p.toknext == 1);

  js = "\"x\": \"value\"";
  r = jsmn_parse(&p, js, strlen(js), tok, 10);
  check(r >= 0 && tok[0].type == JSMN_STRING
      && tok[1].type == JSMN_STRING);
  check(TOKEN_STRING(js, tok[0], "x"));
  check(TOKEN_STRING(js, tok[1], "value"));

  js = "\"x\": \"value\", \"y\": \"value y\"";
  r = jsmn_parse(&p, js, strlen(js), tok, 10);
  check(r >= 0 && tok[0].type == JSMN_STRING
      && tok[1].type == JSMN_STRING && tok[2].type == JSMN_STRING
      && tok[3].type == JSMN_STRING);
  check(TOKEN_STRING(js, tok[0], "x"));
  check(TOKEN_STRING(js, tok[1], "value"));
  check(TOKEN_STRING(js, tok[2], "y"));
  check(TOKEN_STRING(js, tok[3], "value y"));

  return 0;
}

int test_unquoted_keys() {
#ifndef JSMN_STRICT
  int r;
  jsmn_parser p;
  jsmntok_t tok[10];
  const char *js;

  jsmn_init(&p);
  js = "key1: \"value\"\nkey2 : 123";

  r = jsmn_parse(&p, js, strlen(js), tok, 10);
  check(r >= 0 && tok[0].type == JSMN_PRIMITIVE
      && tok[1].type == JSMN_STRING && tok[2].type == JSMN_PRIMITIVE
      && tok[3].type == JSMN_PRIMITIVE);
  check(TOKEN_STRING(js, tok[0], "key1"));
  check(TOKEN_STRING(js, tok[1], "value"));
  check(TOKEN_STRING(js, tok[2], "key2"));
  check(TOKEN_STRING(js, tok[3], "123"));
#endif
  return 0;
}

int test_partial_array() {
  int r;
  jsmn_parser p;
  jsmntok_t tok[10];
  const char *js;

  jsmn_init(&p);
  js = "  [ 1, true, ";
  r = jsmn_parse(&p, js, strlen(js), tok, 10);
  check(r == JSMN_ERROR_PART && tok[0].type == JSMN_ARRAY
      && tok[1].type == JSMN_PRIMITIVE && tok[2].type == JSMN_PRIMITIVE);

  js = "  [ 1, true, [123, \"hello";
  r = jsmn_parse(&p, js, strlen(js), tok, 10);
  check(r == JSMN_ERROR_PART && tok[0].type == JSMN_ARRAY
      && tok[1].type == JSMN_PRIMITIVE && tok[2].type == JSMN_PRIMITIVE
      && tok[3].type == JSMN_ARRAY && tok[4].type == JSMN_PRIMITIVE);

  js = "  [ 1, true, [123, \"hello\"]";
  r = jsmn_parse(&p, js, strlen(js), tok, 10);
  check(r == JSMN_ERROR_PART && tok[0].type == JSMN_ARRAY
      && tok[1].type == JSMN_PRIMITIVE && tok[2].type == JSMN_PRIMITIVE
      && tok[3].type == JSMN_ARRAY && tok[4].type == JSMN_PRIMITIVE
      && tok[5].type == JSMN_STRING);
  /* check child nodes of the 2nd array */
  check(tok[3].size == 2);

  js = "  [ 1, true, [123, \"hello\"]]";
  r = jsmn_parse(&p, js, strlen(js), tok, 10);
  check(r >= 0 && tok[0].type == JSMN_ARRAY
      && tok[1].type == JSMN_PRIMITIVE && tok[2].type == JSMN_PRIMITIVE
      && tok[3].type == JSMN_ARRAY && tok[4].type == JSMN_PRIMITIVE
      && tok[5].type == JSMN_STRING);
  check(tok[3].size == 2);
  check(tok[0].size == 3);
  return 0;
}

int test_array_nomem() {
  int i;
  int r;
  jsmn_parser p;
  jsmntok_t toksmall[10], toklarge[10];
  const char *js;

  js = "  [ 1, true, [123, \"hello\"]]";

  for (i = 0; i < 6; i++) {
    jsmn_init(&p);
    memset(toksmall, 0, sizeof(toksmall));
    memset(toklarge, 0, sizeof(toklarge));
    r = jsmn_parse(&p, js, strlen(js), toksmall, i);
    check(r == JSMN_ERROR_NOMEM);

    memcpy(toklarge, toksmall, sizeof(toksmall));

    r = jsmn_parse(&p, js, strlen(js), toklarge, 10);
    check(r >= 0);

    check(toklarge[0].type == JSMN_ARRAY && toklarge[0].size == 3);
    check(toklarge[3].type == JSMN_ARRAY && toklarge[3].size == 2);
  }
  return 0;
}

int test_objects_arrays() {
  int i;
  int r;
  jsmn_parser p;
  jsmntok_t tokens[10];
  const char *js;

  js = "[10}";
  jsmn_init(&p);
  r = jsmn_parse(&p, js, strlen(js), tokens, 10);
  check(r == JSMN_ERROR_INVAL);

  js = "[10]";
  jsmn_init(&p);
  r = jsmn_parse(&p, js, strlen(js), tokens, 10);
  check(r >= 0);

  js = "{\"a\": 1]";
  jsmn_init(&p);
  r = jsmn_parse(&p, js, strlen(js), tokens, 10);
  check(r == JSMN_ERROR_INVAL);

  js = "{\"a\": 1}";
  jsmn_init(&p);
  r = jsmn_parse(&p, js, strlen(js), tokens, 10);
  check(r >= 0);

  return 0;
}

int test_issue_22() {
  int i;
  int r;
  jsmn_parser p;
  jsmntok_t tokens[128];
  const char *js;

  js = "{ \"height\":10, \"layers\":[ { \"data\":[6,6], \"height\":10, "
    "\"name\":\"Calque de Tile 1\", \"opacity\":1, \"type\":\"tilelayer\", "
    "\"visible\":true, \"width\":10, \"x\":0, \"y\":0 }], "
    "\"orientation\":\"orthogonal\", \"properties\": { }, \"tileheight\":32, "
    "\"tilesets\":[ { \"firstgid\":1, \"image\":\"..\\/images\\/tiles.png\", "
    "\"imageheight\":64, \"imagewidth\":160, \"margin\":0, \"name\":\"Tiles\", "
    "\"properties\":{}, \"spacing\":0, \"tileheight\":32, \"tilewidth\":32 }], "
    "\"tilewidth\":32, \"version\":1, \"width\":10 }";
  jsmn_init(&p);
  r = jsmn_parse(&p, js, strlen(js), tokens, 128);
  check(r >= 0);
#if 0
  for (i = 1; tokens[i].end < tokens[0].end; i++) {
    if (tokens[i].type == JSMN_STRING || tokens[i].type == JSMN_PRIMITIVE) {
      printf("%.*s\n", tokens[i].end - tokens[i].start, js + tokens[i].start);
    } else if (tokens[i].type == JSMN_ARRAY) {
      printf("[%d elems]\n", tokens[i].size);
    } else if (tokens[i].type == JSMN_OBJECT) {
      printf("{%d elems}\n", tokens[i].size);
    } else {
      TOKEN_PRINT(tokens[i]);
    }
  }
#endif
  return 0;
}

int test_unicode_characters() {
  jsmn_parser p;
  jsmntok_t tokens[10];
  const char *js;

  int r;
  js = "{\"a\":\"\\uAbcD\"}";
  jsmn_init(&p);
  r = jsmn_parse(&p, js, strlen(js), tokens, 10);
  check(r >= 0);

  js = "{\"a\":\"str\\u0000\"}";
  jsmn_init(&p);
  r = jsmn_parse(&p, js, strlen(js), tokens, 10);
  check(r >= 0);

  js = "{\"a\":\"\\uFFFFstr\"}";
  jsmn_init(&p);
  r = jsmn_parse(&p, js, strlen(js), tokens, 10);
  check(r >= 0);

  js = "{\"a\":\"str\\uFFGFstr\"}";
  jsmn_init(&p);
  r = jsmn_parse(&p, js, strlen(js), tokens, 10);
  check(r == JSMN_ERROR_INVAL);

  js = "{\"a\":\"str\\u@FfF\"}";
  jsmn_init(&p);
  r = jsmn_parse(&p, js, strlen(js), tokens, 10);
  check(r == JSMN_ERROR_INVAL);

  js = "{\"a\":[\"\\u028\"]}";
  jsmn_init(&p);
  r = jsmn_parse(&p, js, strlen(js), tokens, 10);
  check(r == JSMN_ERROR_INVAL);

  js = "{\"a\":[\"\\u0280\"]}";
  jsmn_init(&p);
  r = jsmn_parse(&p, js, strlen(js), tokens, 10);
  check(r >= 0);

  return 0;
}

int test_input_length() {
  const char *js;
  int r;
  jsmn_parser p;
  jsmntok_t tokens[10];

  js = "{\"a\": 0}garbage";

  jsmn_init(&p);
  r = jsmn_parse(&p, js, 8, tokens, 10);
  check(r == 3);
  check(TOKEN_STRING(js, tokens[0], "{\"a\": 0}"));
  check(TOKEN_STRING(js, tokens[1], "a"));
  check(TOKEN_STRING(js, tokens[2], "0"));

  return 0;
}

int test_jwk() {
  const char *js;
  int i, r, num_tokens;
  jsmn_parser p;
  jsmntok_t* tokens;

  js = "{\"keys\":"
          "[{ \"kty\":\"oct\""
          "\"alg\":\"A128KW1\""
          "\"kid\":\"1-67ef0gd8pvfd0=\""
          "\"k\":\"1-GawgguFyGrWKav7AX4VKUg\""
          "}"
          "{ \"kty\":\"oct\""
          "\"alg\":\"A128KW2\""
          "\"kid\":\"2-67ef0gd8pvfd0=\""
          "\"k\":\"2-GawgguFyGrWKav7AX4VKUg\""
          "}" \
          "{ \"kty\":\"oct\""
          "\"alg\":\"A128KW3\""
          "\"kid\""
          "\"k\":\"3-GawgguFyGrWKav7AX4VKUg\""
          "}]"
  "}";

  jsmn_init(&p);
  num_tokens = jsmn_parse(&p, js, strlen(js), NULL, 0);
  printf("num_tokens=%d, len=%lu\n", num_tokens, strlen(js));

  unsigned int tokens_size = num_tokens * sizeof(jsmntok_t);
  tokens = malloc(tokens_size);
  if (tokens == NULL) {
    printf("!!! failed to alloc for %d tokens, size=%u\n", num_tokens,
        tokens_size);
    return -1;
  }
  jsmn_init(&p);
  memset(tokens, 0, tokens_size);
  r = jsmn_parse(&p, js, strlen(js), tokens, num_tokens);

  for (i = 0; i < num_tokens; ++i) {
    int j;
    const char *pjs = js + tokens[i].start;
    if (tokens[i].type == JSMN_STRING || tokens[i].type == JSMN_PRIMITIVE) {
      for (j = 0; j < tokens[i].end - tokens[i].start; ++j) {
        printf("%c", *pjs++);
      }
      printf("\n");
    }
  }

  free(tokens);
  return 0;
}

int test_count() {
  jsmn_parser p;
  const char *js;
  int r;

  js = "{}";
  jsmn_init(&p);
  r = jsmn_parse(&p, js, strlen(js), NULL, 0);
  check(r == 1);

  js = "[]";
  jsmn_init(&p);
  r = jsmn_parse(&p, js, strlen(js), NULL, 0);
  check(r == 1);

  js = "[[]]";
  jsmn_init(&p);
  r = jsmn_parse(&p, js, strlen(js), NULL, 0);
  check(r == 2);

  js = "[[], []]";
  jsmn_init(&p);
  r = jsmn_parse(&p, js, strlen(js), NULL, 0);
  check(r == 3);

  js = "[[], []]";
  jsmn_init(&p);
  r = jsmn_parse(&p, js, strlen(js), NULL, 0);
  check(r == 3);

  js = "[[], [[]], [[], []]]";
  jsmn_init(&p);
  r = jsmn_parse(&p, js, strlen(js), NULL, 0);
  check(r == 7);

  js = "[\"a\", [[], []]]";
  jsmn_init(&p);
  r = jsmn_parse(&p, js, strlen(js), NULL, 0);
  check(r == 5);

  js = "[[], \"[], [[]]\", [[]]]";
  jsmn_init(&p);
  r = jsmn_parse(&p, js, strlen(js), NULL, 0);
  check(r == 5);

  js = "[1, 2, 3]";
  jsmn_init(&p);
  r = jsmn_parse(&p, js, strlen(js), NULL, 0);
  check(r == 4);

  js = "[1, 2, [3, \"a\"], null]";
  jsmn_init(&p);
  r = jsmn_parse(&p, js, strlen(js), NULL, 0);
  check(r == 7);

  return 0;
}

/** A huge redefinition of everything to include jsmn in non-script mode */
#define jsmn_init jsmn_init_nonstrict
#define jsmn_parse jsmn_parse_nonstrict
#define jsmn_parser jsmn_parser_nonstrict
#define jsmn_alloc_token jsmn_alloc_token_nonstrict
#define jsmn_fill_token jsmn_fill_token_nonstrict
#define jsmn_parse_primitive jsmn_parse_primitive_nonstrict
#define jsmn_parse_string jsmn_parse_string_nonstrict
#define jsmntype_t jsmntype_nonstrict_t
#define jsmnerr_t jsmnerr_nonstrict_t
#define jsmntok_t jsmntok_nonstrict_t
#define JSMN_PRIMITIVE JSMN_PRIMITIVE_NONSTRICT
#define JSMN_OBJECT JSMN_OBJECT_NONSTRICT
#define JSMN_ARRAY JSMN_ARRAY_NONSTRICT
#define JSMN_STRING JSMN_STRING_NONSTRICT
#define JSMN_ERROR_NOMEM JSMN_ERROR_NOMEM_NONSTRICT
#define JSMN_ERROR_INVAL JSMN_ERROR_INVAL_NONSTRICT
#define JSMN_ERROR_PART JSMN_ERROR_PART_NONSTRICT
#undef __JSMN_H_
#undef JSMN_STRICT
#include "jsmn.c"

int test_nonstrict() {
  const char *js;
  int r;
  jsmn_parser p;
  jsmntok_t tokens[10];

  js = "a: 0garbage";

  jsmn_init(&p);
  r = jsmn_parse(&p, js, 4, tokens, 10);
  check(r == 2);
  check(TOKEN_STRING(js, tokens[0], "a"));
  check(TOKEN_STRING(js, tokens[1], "0"));

  js = "Day : 26\nMonth : Sep\n\nYear: 12";
  jsmn_init(&p);
  r = jsmn_parse(&p, js, strlen(js), tokens, 10);
  check(r == 6);
  return 0;
}

int main() {

  test(test_empty, "general test for a empty JSON objects/arrays");
  test(test_simple, "general test for a simple JSON string");
  test(test_primitive, "test primitive JSON data types");
  test(test_string, "test string JSON data types");
  test(test_partial_string, "test partial JSON string parsing");
  test(test_partial_array, "test partial array reading");
  test(test_array_nomem, "test array reading with a smaller number of tokens");
  test(test_unquoted_keys, "test unquoted keys (like in JavaScript)");
  test(test_objects_arrays, "test objects and arrays");
  test(test_unicode_characters, "test unicode characters");
  test(test_input_length, "test strings that are not null-terminated");
  test(test_issue_22, "test issue #22");
  test(test_count, "test tokens count estimation");
  test(test_nonstrict, "test for non-strict mode");

  test(test_jwk, "test jwk");
  printf("\nPASSED: %d\nFAILED: %d\n", test_passed, test_failed);
  return 0;
}