Add more tests for coverage

ibireme · ibireme · commit c3b63261b40f · 2025-08-19T00:36:20.000+08:00
diff --git a/src/yyjson.c b/src/yyjson.c
@@ -4659,12 +4659,12 @@ static_inline bool read_num(u8 **ptr, u8 **pre, yyjson_read_flag flg,
 /** Read unicode escape sequence. */
 static_inline bool read_uni_esc(u8 **src_ptr, u8 **dst_ptr, const char **msg) {
 #define return_err(_end, _msg) *msg = _msg; *src_ptr = _end; return false
-    
+
     u8 *src = *src_ptr;
     u8 *dst = *dst_ptr;
     u16 hi, lo;
     u32 uni;
-    
+
     src += 2; /* skip `\u` */
     if (unlikely(!hex_load_4(src, &hi))) {
         return_err(src - 2, "invalid escaped sequence in string");
@@ -6620,9 +6620,6 @@ yyjson_doc *yyjson_incr_read(yyjson_incr_state *state, size_t len,
     if (unlikely(!len)) {
         return_err_inv_param("input length is 0");
     }
-    if (unlikely(len < (usize)(state->cur - state->hdr))) {
-        return_err_inv_param("length is smaller than parsed length");
-    }
     if (unlikely(len > state->buf_len)) {
         return_err_inv_param("length is greater than total input length");
     }
@@ -7247,15 +7244,6 @@ static const u8 dec_trailing_zero_table[] = {
     1, 0, 0, 0, 0, 0, 0, 0, 0, 0
 };
 
-static_inline u8 *write_u32_len_1_to_9(u32 val, u8 *buf) {
-    if (val >= 100000000) {
-        u32 hi = val / 10000000;
-        val = val - hi * 10000000;
-        *buf++ = (u8)(hi + '0');
-    }
-    return write_u32_len_1_to_8((u32)val, buf);
-}
-
 static_inline u8 *write_u64_len_1_to_16(u64 val, u8 *buf) {
     u64 hgh;
     u32 low;
@@ -7860,7 +7848,7 @@ static_noinline u8 *write_f32_raw(u8 *buf, u64 raw_f64,
         f32_bin_to_dec(sig_raw, exp_raw, sig_bin, exp_bin, &sig_dec, &exp_dec);
 
         /* write significand part */
-        end = write_u32_len_1_to_9(sig_dec, buf + 1);
+        end = write_u32_len_1_to_8(sig_dec, buf + 1);
         buf[0] = buf[1];
         buf[1] = '.';
         exp_dec += (i32)(end - buf) - 2;
@@ -8717,11 +8705,10 @@ static_inline u8 *write_str(u8 *cur, bool esc, bool inv,
 #if YYJSON_DISABLE_UTF8_VALIDATION
             byte_copy_2(cur, src);
 #else
-            u32 v4 = 0;
-            u16 v2 = byte_load_2(src);
-            byte_copy_2(&v4, &v2);
-            if (unlikely(!is_utf8_seq2(v4))) goto err_cpy;
-            byte_copy_2(cur, src);
+            u32 uni = 0;
+            byte_copy_2(&uni, src);
+            if (unlikely(!is_utf8_seq2(uni))) goto err_cpy;
+            byte_copy_2(cur, &uni);
 #endif
             cur += 2;
             src += 2;
@@ -8736,15 +8723,15 @@ static_inline u8 *write_str(u8 *cur, bool esc, bool inv,
                 cur[2] = src[2];
             }
 #else
-            u32 v, tmp;
+            u32 uni, tmp;
             if (likely(src + 4 <= end)) {
-                v = byte_load_4(src);
-                if (unlikely(!is_utf8_seq3(v))) goto err_cpy;
+                uni = byte_load_4(src);
+                if (unlikely(!is_utf8_seq3(uni))) goto err_cpy;
                 byte_copy_4(cur, src);
             } else {
-                v = byte_load_3(src);
-                if (unlikely(!is_utf8_seq3(v))) goto err_cpy;
-                byte_copy_4(cur, &v);
+                uni = byte_load_3(src);
+                if (unlikely(!is_utf8_seq3(uni))) goto err_cpy;
+                byte_copy_4(cur, &uni);
             }
 #endif
             cur += 3;
@@ -8755,9 +8742,9 @@ static_inline u8 *write_str(u8 *cur, bool esc, bool inv,
 #if YYJSON_DISABLE_UTF8_VALIDATION
             byte_copy_4(cur, src);
 #else
-            u32 v, tmp;
-            v = byte_load_4(src);
-            if (unlikely(!is_utf8_seq4(v))) goto err_cpy;
+            u32 uni, tmp;
+            uni = byte_load_4(src);
+            if (unlikely(!is_utf8_seq4(uni))) goto err_cpy;
             byte_copy_4(cur, src);
 #endif
             cur += 4;
@@ -8837,7 +8824,7 @@ static_inline u8 *write_str(u8 *cur, bool esc, bool inv,
         case CHAR_ENC_ERR_1: {
             goto err_one;
         }
-        default: break;
+        default: break; /* unreachable */
     }
 
 copy_end:
diff --git a/test/data/json/test_yyjson/more_spaces.json b/test/data/json/test_yyjson/more_spaces.json
@@ -0,0 +1 @@
+   [   1   ,   ""   ,   true   ,   {   "key"   :   "val"   ,   "key2"   :   "val2"   }   ]   
diff --git a/test/data/json/test_yyjson/num_long_int(bignum).json b/test/data/json/test_yyjson/num_long_int(bignum).json
@@ -0,0 +1 @@
+123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890
diff --git a/test/data/json/test_yyjson/num_long_real(bignum).json b/test/data/json/test_yyjson/num_long_real(bignum).json
@@ -0,0 +1 @@
+123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890.0
diff --git a/test/data/json/test_yyjson/num_long_real.json b/test/data/json/test_yyjson/num_long_real.json
@@ -0,0 +1 @@
+0.123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890
diff --git a/test/data/json/test_yyjson/str_single_quote_err_1(fail).json b/test/data/json/test_yyjson/str_single_quote_err_1(fail).json
@@ -0,0 +1,3 @@
+[
+    'abc"
+]
diff --git a/test/data/json/test_yyjson/str_single_quote_err_1(fail).min.json b/test/data/json/test_yyjson/str_single_quote_err_1(fail).min.json
@@ -0,0 +1 @@
+['abc"]
diff --git a/test/data/json/test_yyjson/str_single_quote_err_2(fail).json b/test/data/json/test_yyjson/str_single_quote_err_2(fail).json
@@ -0,0 +1,3 @@
+{
+    'abc": 123
+}
diff --git a/test/data/json/test_yyjson/str_single_quote_err_2(fail).min.json b/test/data/json/test_yyjson/str_single_quote_err_2(fail).min.json
@@ -0,0 +1 @@
+{'abc":123}
diff --git a/test/data/json/test_yyjson/str_single_quote_err_3(fail).json b/test/data/json/test_yyjson/str_single_quote_err_3(fail).json
@@ -0,0 +1,3 @@
+{
+    "key": 'abc"
+}
diff --git a/test/data/json/test_yyjson/str_single_quote_err_3(fail).min.json b/test/data/json/test_yyjson/str_single_quote_err_3(fail).min.json
@@ -0,0 +1 @@
+{"key":'abc"}
diff --git a/test/data/json/test_yyjson/str_unquoted_err_4(fail).json b/test/data/json/test_yyjson/str_unquoted_err_4(fail).json
@@ -0,0 +1,3 @@
+{
+    abc\u: 1
+}
diff --git a/test/data/json/test_yyjson/str_unquoted_err_4(fail).min.json b/test/data/json/test_yyjson/str_unquoted_err_4(fail).min.json
@@ -0,0 +1 @@
+{abc\u:1}
diff --git a/test/data/json/test_yyjson/unclosed_comment_7(fail).json b/test/data/json/test_yyjson/unclosed_comment_7(fail).json
@@ -0,0 +1,2 @@
+{
+    /* test
diff --git a/test/data/json/test_yyjson/unclosed_comment_7(fail).min.json b/test/data/json/test_yyjson/unclosed_comment_7(fail).min.json
@@ -0,0 +1 @@
+{/* test
diff --git a/test/data/json/test_yyjson/unclosed_comment_8(fail).json b/test/data/json/test_yyjson/unclosed_comment_8(fail).json
@@ -0,0 +1,2 @@
+{
+    "key": /* test
diff --git a/test/data/json/test_yyjson/unclosed_comment_8(fail).min.json b/test/data/json/test_yyjson/unclosed_comment_8(fail).min.json
@@ -0,0 +1 @@
+{"key":/* test
diff --git a/test/data/json/test_yyjson/unclosed_comment_tail_1(garbage).json b/test/data/json/test_yyjson/unclosed_comment_tail_1(garbage).json
diff --git a/test/data/json/test_yyjson/unclosed_comment_tail_2(garbage).json b/test/data/json/test_yyjson/unclosed_comment_tail_2(garbage).json
@@ -0,0 +1,4 @@
+{
+    "key": "val"
+}
+/* test
diff --git a/test/data/json/test_yyjson/unclosed_comment_tail_2(garbage).min.json b/test/data/json/test_yyjson/unclosed_comment_tail_2(garbage).min.json
@@ -0,0 +1 @@
+{"key":"val"}/* test
diff --git a/test/test_err_code.c b/test/test_err_code.c
@@ -562,6 +562,13 @@ static void test_read_err_code(void) {
     yy_assert(err.code == YYJSON_READ_ERROR_FILE_OPEN);
     yy_assert(err.pos == 0);
     
+    // Failed to parse a file.
+    yy_path_combine(dir, YYJSON_TEST_DATA_PATH, "data", "json", "test_yyjson", "comment_multiline_empty(fail).json", NULL);
+    memset(&err, -1, sizeof(err));
+    yyjson_doc_free(yyjson_read_file(dir, 0, NULL, &err));
+    yy_assert(err.code == YYJSON_READ_ERROR_UNEXPECTED_CHARACTER);
+    yy_assert(err.pos == 0);
+    
 #endif
 }
 
diff --git a/test/test_json_mut_val.c b/test/test_json_mut_val.c
@@ -120,13 +120,34 @@ static void test_json_mut_val_api(void) {
     yy_assert(validate_mut_val_type(val, YYJSON_TYPE_RAW, YYJSON_SUBTYPE_NONE));
     yy_assert(strcmp(yyjson_mut_get_type_desc(val), "raw") == 0);
     yy_assert(strcmp(yyjson_mut_get_raw(val), "abc") == 0);
+    yy_assert(yyjson_mut_get_len(val) == 3);
     
     yy_assert(yyjson_mut_rawcpy(NULL, NULL) == NULL);
     yy_assert(yyjson_mut_rawcpy(NULL, "abc") == NULL);
     yy_assert(yyjson_mut_rawcpy(doc, NULL) == NULL);
     val = yyjson_mut_rawcpy(doc, "abc");
     yy_assert(validate_mut_val_type(val, YYJSON_TYPE_RAW, YYJSON_SUBTYPE_NONE));
     yy_assert(strcmp(yyjson_mut_get_type_desc(val), "raw") == 0);
+    yy_assert(strcmp(yyjson_mut_get_raw(val), "abc") == 0);
+    yy_assert(yyjson_mut_get_len(val) == 3);
+    
+    yy_assert(yyjson_mut_rawn(NULL, NULL, 0) == NULL);
+    yy_assert(yyjson_mut_rawn(NULL, "abc", 3) == NULL);
+    yy_assert(yyjson_mut_rawn(doc, NULL, 0) == NULL);
+    val = yyjson_mut_rawn(doc, "abc(garbage)", 3);
+    yy_assert(validate_mut_val_type(val, YYJSON_TYPE_RAW, YYJSON_SUBTYPE_NONE));
+    yy_assert(strcmp(yyjson_mut_get_type_desc(val), "raw") == 0);
+    yy_assert(strncmp(yyjson_mut_get_raw(val), "abc", 3) == 0);
+    yy_assert(yyjson_mut_get_len(val) == 3);
+    
+    yy_assert(yyjson_mut_rawncpy(NULL, NULL, 0) == NULL);
+    yy_assert(yyjson_mut_rawncpy(NULL, "abc", 3) == NULL);
+    yy_assert(yyjson_mut_rawncpy(doc, NULL, 3) == NULL);
+    val = yyjson_mut_rawncpy(doc, "abc(garbage)", 3);
+    yy_assert(validate_mut_val_type(val, YYJSON_TYPE_RAW, YYJSON_SUBTYPE_NONE));
+    yy_assert(strcmp(yyjson_mut_get_type_desc(val), "raw") == 0);
+    yy_assert(strncmp(yyjson_mut_get_raw(val), "abc", 3) == 0);
+    yy_assert(yyjson_mut_get_len(val) == 3);
 
     yy_assert(yyjson_mut_null(NULL) == NULL);
     val = yyjson_mut_null(doc);
diff --git a/test/test_json_reader.c b/test/test_json_reader.c
@@ -134,6 +134,11 @@ static void test_read_data(const char *path, char *dat, usize len,
 restart_incr_read:
     state = yyjson_incr_new((char *)dat, len, flg, NULL);
     yy_assert(state != NULL);
+    yy_assert(!yyjson_incr_read(NULL, read_len, &err));
+    yy_assert(!yyjson_incr_read(state, 0, &err));
+    yy_assert(!yyjson_incr_read(state, 0, NULL));
+    yy_assert(!yyjson_incr_read(state, len + 1, NULL));
+    
     while (read_len < len || len == 0) {
         read_len += chunk_len;
         if (read_len > len) {
@@ -303,7 +308,9 @@ static void test_json_yyjson(void) {
     yyjson_alc alc_small;
     char alc_buf[64];
     yy_assert(yyjson_alc_pool_init(&alc_small, alc_buf, sizeof(void *) * 8));
-    yy_assert(!yyjson_read_opts("", 64, 0, &alc_small, NULL));
+    yy_assert(!yyjson_read_opts("[]", 2, 0, &alc_small, NULL));
+    yy_assert(!yyjson_read_opts("[  ]", 4, 0, &alc_small, NULL));
+    yy_assert(!yyjson_read_opts("123", 3, 0, &alc_small, NULL));
     yy_assert(!yyjson_read_file(dir, 0, &alc_small, NULL));
 }
 
diff --git a/test/test_json_writer.c b/test/test_json_writer.c
@@ -976,6 +976,7 @@ yy_test_case(test_json_writer) {
         yyjson_mut_set_int(&code, 200);
         yyjson_mut_set_str(&msg_key, "msg");
         yyjson_mut_set_str(&msg, "success");
+        yyjson_mut_set_str_noesc(&msg, true);
         yyjson_mut_set_str(&arr_key, "arr");
         yyjson_mut_set_arr(&arr);
         yyjson_mut_set_bool(&vals[0], true);
diff --git a/test/test_number.c b/test/test_number.c
@@ -1015,6 +1015,7 @@ static void test_special_real(void) {
 }
 
 /// Test all float32 number read/write.
+/// It takes about 13 minutes on Apple M1/M2 (release build).
 static void test_all_float(void) {
     char alc_buf[4096];
     yyjson_alc alc;
@@ -1034,6 +1035,7 @@ static void test_all_float(void) {
             f64 remaining = expected - elapsed;
             printf("progress: %.2f%%, remaining: %.1f minutes\n",
                    progress * 100, remaining / 60);
+            fflush(NULL);
         }
     }
     printf("--- end test all float ---\n");
@@ -1518,6 +1520,16 @@ static void test_write_flags(void) {
         yy_assert((usize)(end - flt_buf) == strlen(str));
         free(str);
         
+        /// extra flag bits
+        memset(&val, 0, sizeof(val));
+        yyjson_set_double(&val, 1.23456789);
+        val.tag |= (u64)1 << (64 - 6);
+        str = yyjson_val_write(&val, 0, NULL);
+        end = yyjson_write_number(&val, flt_buf);
+        yy_assert(!strcmp(str, flt_buf));
+        yy_assert((usize)(end - flt_buf) == strlen(str));
+        free(str);
+        
         /// inf
         memset(&val, 0, sizeof(val));
         yyjson_set_double(&val, INFINITY);

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1 @@`
	`1`	`+ [ 1 , "" , true , { "key" : "val" , "key2" : "val2" } ]`
Original file line number	Diff line number	Diff line change
`@@ -0,0 +1 @@`
	`1`	+123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890
Original file line number	Diff line number	Diff line change
`@@ -0,0 +1 @@`
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