tests/encode_unittests.c

   1 #include <stdio.h>
   2 #include <string.h>
   3 #include "pb_encode.h"
   4 #include "unittests.h"
   5 #include "unittestproto.pb.h"
   6
   7 bool streamcallback(pb_ostream_t *stream, const uint8_t *buf, size_t count)
   8 {
   9     /* Allow only 'x' to be written */
  10     while (count--)
  11     {
  12         if (*buf++ != 'x')
  13             return false;
  14     }
  15     return true;
  16 }
  17
  18 bool fieldcallback(pb_ostream_t *stream, const pb_field_t *field, const void *arg)
  19 {
  20     int value = 0x55;
  21     if (!pb_encode_tag_for_field(stream, field))
  22         return false;
  23     return pb_encode_varint(stream, value);
  24 }
  25
  26 bool crazyfieldcallback(pb_ostream_t *stream, const pb_field_t *field, const void *arg)
  27 {
  28     /* This callback writes different amount of data the second time. */
  29     uint32_t *state = (uint32_t*)arg;
  30     *state <<= 8;
  31     if (!pb_encode_tag_for_field(stream, field))
  32         return false;
  33     return pb_encode_varint(stream, *state);
  34 }
  35
  36 /* Check that expression x writes data y.
  37  * Y is a string, which may contain null bytes. Null terminator is ignored.
  38  */
  39 #define WRITES(x, y) \
  40 memset(buffer, 0xAA, sizeof(buffer)), \
  41 s = pb_ostream_from_buffer(buffer, sizeof(buffer)), \
  42 (x) && \
  43 memcmp(buffer, y, sizeof(y) - 1) == 0 && \
  44 buffer[sizeof(y) - 1] == 0xAA
  45
  46 int main()
  47 {
  48     int status = 0;
  49
  50     {
  51         uint8_t buffer1[] = "foobartest1234";
  52         uint8_t buffer2[sizeof(buffer1)];
  53         pb_ostream_t stream = pb_ostream_from_buffer(buffer2, sizeof(buffer1));
  54
  55         COMMENT("Test pb_write and pb_ostream_t");
  56         TEST(pb_write(&stream, buffer1, sizeof(buffer1)));
  57         TEST(memcmp(buffer1, buffer2, sizeof(buffer1)) == 0);
  58         TEST(!pb_write(&stream, buffer1, 1));
  59         TEST(stream.bytes_written == sizeof(buffer1));
  60     }
  61
  62     {
  63         uint8_t buffer1[] = "xxxxxxx";
  64         pb_ostream_t stream = {&streamcallback, 0, SIZE_MAX, 0};
  65
  66         COMMENT("Test pb_write with custom callback");
  67         TEST(pb_write(&stream, buffer1, 5));
  68         buffer1[0] = 'a';
  69         TEST(!pb_write(&stream, buffer1, 5));
  70     }
  71
  72     {
  73         uint8_t buffer[30];
  74         pb_ostream_t s;
  75
  76         COMMENT("Test pb_encode_varint")
  77         TEST(WRITES(pb_encode_varint(&s, 0), "\0"));
  78         TEST(WRITES(pb_encode_varint(&s, 1), "\1"));
  79         TEST(WRITES(pb_encode_varint(&s, 0x7F), "\x7F"));
  80         TEST(WRITES(pb_encode_varint(&s, 0x80), "\x80\x01"));
  81         TEST(WRITES(pb_encode_varint(&s, UINT32_MAX), "\xFF\xFF\xFF\xFF\x0F"));
  82         TEST(WRITES(pb_encode_varint(&s, UINT64_MAX), "\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\x01"));
  83     }
  84
  85     {
  86         uint8_t buffer[30];
  87         pb_ostream_t s;
  88
  89         COMMENT("Test pb_encode_tag")
  90         TEST(WRITES(pb_encode_tag(&s, PB_WT_STRING, 5), "\x2A"));
  91         TEST(WRITES(pb_encode_tag(&s, PB_WT_VARINT, 99), "\x98\x06"));
  92     }
  93
  94     {
  95         uint8_t buffer[30];
  96         pb_ostream_t s;
  97         pb_field_t field = {10, PB_LTYPE_SVARINT};
  98
  99         COMMENT("Test pb_encode_tag_for_field")
 100         TEST(WRITES(pb_encode_tag_for_field(&s, &field), "\x50"));
 101
 102         field.type = PB_LTYPE_FIXED64;
 103         TEST(WRITES(pb_encode_tag_for_field(&s, &field), "\x51"));
 104
 105         field.type = PB_LTYPE_STRING;
 106         TEST(WRITES(pb_encode_tag_for_field(&s, &field), "\x52"));
 107
 108         field.type = PB_LTYPE_FIXED32;
 109         TEST(WRITES(pb_encode_tag_for_field(&s, &field), "\x55"));
 110     }
 111
 112     {
 113         uint8_t buffer[30];
 114         pb_ostream_t s;
 115
 116         COMMENT("Test pb_encode_string")
 117         TEST(WRITES(pb_encode_string(&s, (const uint8_t*)"abcd", 4), "\x04""abcd"));
 118         TEST(WRITES(pb_encode_string(&s, (const uint8_t*)"abcd\x00", 5), "\x05""abcd\x00"));
 119         TEST(WRITES(pb_encode_string(&s, (const uint8_t*)"", 0), "\x00"));
 120     }
 121
 122     {
 123         uint8_t buffer[30];
 124         pb_ostream_t s;
 125         uint8_t value = 1;
 126         int8_t svalue = -1;
 127         int32_t max = INT32_MAX;
 128         int32_t min = INT32_MIN;
 129         int64_t lmax = INT64_MAX;
 130         int64_t lmin = INT64_MIN;
 131         pb_field_t field = {1, PB_LTYPE_VARINT, 0, 0, sizeof(value)};
 132
 133         COMMENT("Test pb_enc_varint and pb_enc_svarint")
 134         TEST(WRITES(pb_enc_varint(&s, &field, &value), "\x01"));
 135         TEST(WRITES(pb_enc_svarint(&s, &field, &svalue), "\x01"));
 136         TEST(WRITES(pb_enc_svarint(&s, &field, &value), "\x02"));
 137
 138         field.data_size = sizeof(max);
 139         TEST(WRITES(pb_enc_svarint(&s, &field, &max), "\xfe\xff\xff\xff\x0f"));
 140         TEST(WRITES(pb_enc_svarint(&s, &field, &min), "\xff\xff\xff\xff\x0f"));
 141
 142         field.data_size = sizeof(lmax);
 143         TEST(WRITES(pb_enc_svarint(&s, &field, &lmax), "\xFE\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\x01"));
 144         TEST(WRITES(pb_enc_svarint(&s, &field, &lmin), "\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\x01"));
 145     }
 146
 147     {
 148         uint8_t buffer[30];
 149         pb_ostream_t s;
 150         float fvalue;
 151         double dvalue;
 152
 153         COMMENT("Test pb_enc_fixed32 using float")
 154         fvalue = 0.0f;
 155         TEST(WRITES(pb_enc_fixed32(&s, NULL, &fvalue), "\x00\x00\x00\x00"))
 156         fvalue = 99.0f;
 157         TEST(WRITES(pb_enc_fixed32(&s, NULL, &fvalue), "\x00\x00\xc6\x42"))
 158         fvalue = -12345678.0f;
 159         TEST(WRITES(pb_enc_fixed32(&s, NULL, &fvalue), "\x4e\x61\x3c\xcb"))
 160
 161         COMMENT("Test pb_enc_fixed64 using double")
 162         dvalue = 0.0;
 163         TEST(WRITES(pb_enc_fixed64(&s, NULL, &dvalue), "\x00\x00\x00\x00\x00\x00\x00\x00"))
 164         dvalue = 99.0;
 165         TEST(WRITES(pb_enc_fixed64(&s, NULL, &dvalue), "\x00\x00\x00\x00\x00\xc0\x58\x40"))
 166         dvalue = -12345678.0;
 167         TEST(WRITES(pb_enc_fixed64(&s, NULL, &dvalue), "\x00\x00\x00\xc0\x29\x8c\x67\xc1"))
 168     }
 169
 170     {
 171         uint8_t buffer[30];
 172         pb_ostream_t s;
 173         struct { size_t size; uint8_t bytes[5]; } value = {5, {'x', 'y', 'z', 'z', 'y'}};
 174
 175         COMMENT("Test pb_enc_bytes")
 176         TEST(WRITES(pb_enc_bytes(&s, NULL, &value), "\x05xyzzy"))
 177         value.size = 0;
 178         TEST(WRITES(pb_enc_bytes(&s, NULL, &value), "\x00"))
 179     }
 180
 181     {
 182         uint8_t buffer[30];
 183         pb_ostream_t s;
 184         char value[] = "xyzzy";
 185
 186         COMMENT("Test pb_enc_string")
 187         TEST(WRITES(pb_enc_string(&s, NULL, &value), "\x05xyzzy"))
 188         value[0] = '\0';
 189         TEST(WRITES(pb_enc_string(&s, NULL, &value), "\x00"))
 190     }
 191
 192     {
 193         uint8_t buffer[10];
 194         pb_ostream_t s;
 195         IntegerArray msg = {5, {1, 2, 3, 4, 5}};
 196
 197         COMMENT("Test pb_encode with int32 array")
 198
 199         TEST(WRITES(pb_encode(&s, IntegerArray_fields, &msg), "\x0A\x05\x01\x02\x03\x04\x05"))
 200
 201         msg.data_count = 0;
 202         TEST(WRITES(pb_encode(&s, IntegerArray_fields, &msg), ""))
 203
 204         msg.data_count = 10;
 205         TEST(!pb_encode(&s, IntegerArray_fields, &msg))
 206     }
 207
 208     {
 209         uint8_t buffer[10];
 210         pb_ostream_t s;
 211         FloatArray msg = {1, {99.0f}};
 212
 213         COMMENT("Test pb_encode with float array")
 214
 215         TEST(WRITES(pb_encode(&s, FloatArray_fields, &msg),
 216                     "\x0A\x04\x00\x00\xc6\x42"))
 217
 218         msg.data_count = 0;
 219         TEST(WRITES(pb_encode(&s, FloatArray_fields, &msg), ""))
 220
 221         msg.data_count = 3;
 222         TEST(!pb_encode(&s, FloatArray_fields, &msg))
 223     }
 224
 225     {
 226         uint8_t buffer[10];
 227         pb_ostream_t s;
 228         CallbackArray msg;
 229
 230         msg.data.funcs.encode = &fieldcallback;
 231
 232         COMMENT("Test pb_encode with callback field.")
 233         TEST(WRITES(pb_encode(&s, CallbackArray_fields, &msg), "\x08\x55"))
 234     }
 235
 236     {
 237         uint8_t buffer[10];
 238         pb_ostream_t s;
 239         IntegerContainer msg = {{5, {1,2,3,4,5}}};
 240
 241         COMMENT("Test pb_encode with packed array in a submessage.")
 242         TEST(WRITES(pb_encode(&s, IntegerContainer_fields, &msg),
 243                     "\x0A\x07\x0A\x05\x01\x02\x03\x04\x05"))
 244     }
 245
 246     {
 247         uint8_t buffer[10];
 248         pb_ostream_t s;
 249         CallbackContainer msg;
 250         CallbackContainerContainer msg2;
 251         uint32_t state = 1;
 252
 253         msg.submsg.data.funcs.encode = &fieldcallback;
 254         msg2.submsg.submsg.data.funcs.encode = &fieldcallback;
 255
 256         COMMENT("Test pb_encode with callback field in a submessage.")
 257         TEST(WRITES(pb_encode(&s, CallbackContainer_fields, &msg), "\x0A\x02\x08\x55"))
 258         TEST(WRITES(pb_encode(&s, CallbackContainerContainer_fields, &msg2),
 259                     "\x0A\x04\x0A\x02\x08\x55"))
 260
 261         /* Misbehaving callback: varying output between calls */
 262         msg.submsg.data.funcs.encode = &crazyfieldcallback;
 263         msg.submsg.data.arg = &state;
 264         msg2.submsg.submsg.data.funcs.encode = &crazyfieldcallback;
 265         msg2.submsg.submsg.data.arg = &state;
 266
 267         TEST(!pb_encode(&s, CallbackContainer_fields, &msg))
 268         state = 1;
 269         TEST(!pb_encode(&s, CallbackContainerContainer_fields, &msg2))
 270     }
 271
 272     if (status != 0)
 273         fprintf(stdout, "\n\nSome tests FAILED!\n");
 274
 275     return status;
 276 }