Unittests for encode

git-svn-id: https://svn.kapsi.fi/jpa/nanopb@952 e3a754e5-d11d-0410-8d38-ebb782a927b9

tests/encode_unittests.c

@@ -0,0 +1,123 @@
+#include <stdio.h>
+#include <string.h>
+#include "pb_encode.h"
+#include "unittests.h"
+
+bool streamcallback(pb_ostream_t *stream, const uint8_t *buf, size_t count)
+{
+    /* Allow only 'x' to be written */
+    while (count--)
+    {
+        if (*buf++ != 'x')
+            return false;
+    }
+    return true;
+}
+
+/* Check that expression x writes data y.
+ * Y is a string, which may contain null bytes. Null terminator is ignored.
+ */
+#define WRITES(x, y) \
+memset(buffer, 0xAA, sizeof(buffer)), \
+s = pb_ostream_from_buffer(buffer, sizeof(buffer)), \
+(x) && \
+memcmp(buffer, y, sizeof(y) - 1) == 0 && \
+buffer[sizeof(y) - 1] == 0xAA
+
+int main()
+{
+    int status = 0;
+    
+    {
+        uint8_t buffer1[] = "foobartest1234";
+        uint8_t buffer2[sizeof(buffer1)];
+        pb_ostream_t stream = pb_ostream_from_buffer(buffer2, sizeof(buffer1));
+        
+        COMMENT("Test pb_write and pb_ostream_t");
+        TEST(pb_write(&stream, buffer1, sizeof(buffer1)));
+        TEST(memcmp(buffer1, buffer2, sizeof(buffer1)) == 0);
+        TEST(!pb_write(&stream, buffer1, 1));
+        TEST(stream.bytes_written == sizeof(buffer1));
+    }
+    
+    {
+        uint8_t buffer1[] = "xxxxxxx";
+        pb_ostream_t stream = {&streamcallback, 0, SIZE_MAX, 0};
+        
+        COMMENT("Test pb_write with custom callback");
+        TEST(pb_write(&stream, buffer1, 5));
+        buffer1[0] = 'a';
+        TEST(!pb_write(&stream, buffer1, 5));
+    }
+    
+    {
+        uint8_t buffer[30];
+        pb_ostream_t s;
+        
+        COMMENT("Test pb_encode_varint")
+        TEST(WRITES(pb_encode_varint(&s, 0), "\0"));
+        TEST(WRITES(pb_encode_varint(&s, 1), "\1"));
+        TEST(WRITES(pb_encode_varint(&s, 0x7F), "\x7F"));
+        TEST(WRITES(pb_encode_varint(&s, 0x80), "\x80\x01"));
+        TEST(WRITES(pb_encode_varint(&s, UINT32_MAX), "\xFF\xFF\xFF\xFF\x0F"));
+        TEST(WRITES(pb_encode_varint(&s, UINT64_MAX), "\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\x01"));
+    }
+    
+    {
+        uint8_t buffer[30];
+        pb_ostream_t s;
+        
+        COMMENT("Test pb_encode_tag")
+        TEST(WRITES(pb_encode_tag(&s, PB_WT_STRING, 5), "\x2A"));
+        TEST(WRITES(pb_encode_tag(&s, PB_WT_VARINT, 99), "\x98\x06"));
+    }
+    
+    {
+        uint8_t buffer[30];
+        pb_ostream_t s;
+        pb_field_t field = {10, PB_LTYPE_SVARINT};
+        
+        COMMENT("Test pb_encode_tag_for_field")
+        TEST(WRITES(pb_encode_tag_for_field(&s, &field), "\x50"));
+    }
+    
+    {
+        uint8_t buffer[30];
+        pb_ostream_t s;
+        
+        COMMENT("Test pb_encode_string")
+        TEST(WRITES(pb_encode_string(&s, (const uint8_t*)"abcd", 4), "\x04""abcd"));
+        TEST(WRITES(pb_encode_string(&s, (const uint8_t*)"abcd\x00", 5), "\x05""abcd\x00"));
+        TEST(WRITES(pb_encode_string(&s, (const uint8_t*)"", 0), "\x00"));
+    }
+    
+    {
+        uint8_t buffer[30];
+        pb_ostream_t s;
+        uint8_t value = 1;
+        int8_t svalue = -1;
+        int32_t max = INT32_MAX;
+        int32_t min = INT32_MIN;
+        int64_t lmax = INT64_MAX;
+        int64_t lmin = INT64_MIN;
+        pb_field_t field = {1, PB_LTYPE_VARINT, 0, 0, sizeof(value)};
+        
+        COMMENT("Test pb_enc_varint and pb_enc_svarint")
+        TEST(WRITES(pb_enc_varint(&s, &field, &value), "\x01"));
+        TEST(WRITES(pb_enc_svarint(&s, &field, &svalue), "\x01"));
+        TEST(WRITES(pb_enc_svarint(&s, &field, &value), "\x02"));
+        
+        field.data_size = sizeof(max);
+        TEST(WRITES(pb_enc_svarint(&s, &field, &max), "\xfe\xff\xff\xff\x0f"));
+        TEST(WRITES(pb_enc_svarint(&s, &field, &min), "\xff\xff\xff\xff\x0f"));
+        
+        field.data_size = sizeof(lmax);
+        TEST(WRITES(pb_enc_svarint(&s, &field, &lmax), "\xFE\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\x01"));
+        TEST(WRITES(pb_enc_svarint(&s, &field, &lmin), "\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\x01"));
+    }
+    
+    if (status != 0)
+        fprintf(stdout, "\n\nSome tests FAILED!\n");
+    
+    return status;
+}