| #include <assert.h> |
| #include <stddef.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <limits.h> |
| |
| #include "debug.h" |
| #include "printbuf.h" |
| |
| static void test_basic_printbuf_memset(void); |
| static void test_printbuf_memset_length(void); |
| |
| static void test_basic_printbuf_memset() |
| { |
| struct printbuf *pb; |
| |
| printf("%s: starting test\n", __func__); |
| pb = printbuf_new(); |
| sprintbuf(pb, "blue:%d", 1); |
| printbuf_memset(pb, -1, 'x', 52); |
| printf("Buffer contents:%.*s\n", printbuf_length(pb), pb->buf); |
| printbuf_free(pb); |
| printf("%s: end test\n", __func__); |
| } |
| |
| static void test_printbuf_memset_length() |
| { |
| struct printbuf *pb; |
| |
| printf("%s: starting test\n", __func__); |
| pb = printbuf_new(); |
| printbuf_memset(pb, -1, ' ', 0); |
| printbuf_memset(pb, -1, ' ', 0); |
| printbuf_memset(pb, -1, ' ', 0); |
| printbuf_memset(pb, -1, ' ', 0); |
| printbuf_memset(pb, -1, ' ', 0); |
| printf("Buffer length: %d\n", printbuf_length(pb)); |
| printbuf_memset(pb, -1, ' ', 2); |
| printbuf_memset(pb, -1, ' ', 4); |
| printbuf_memset(pb, -1, ' ', 6); |
| printf("Buffer length: %d\n", printbuf_length(pb)); |
| printbuf_memset(pb, -1, ' ', 6); |
| printf("Buffer length: %d\n", printbuf_length(pb)); |
| printbuf_memset(pb, -1, ' ', 8); |
| printbuf_memset(pb, -1, ' ', 10); |
| printbuf_memset(pb, -1, ' ', 10); |
| printbuf_memset(pb, -1, ' ', 10); |
| printbuf_memset(pb, -1, ' ', 20); |
| printf("Buffer length: %d\n", printbuf_length(pb)); |
| |
| // No length change should occur |
| printbuf_memset(pb, 0, 'x', 30); |
| printf("Buffer length: %d\n", printbuf_length(pb)); |
| |
| // This should extend it by one. |
| printbuf_memset(pb, 0, 'x', printbuf_length(pb) + 1); |
| printf("Buffer length: %d\n", printbuf_length(pb)); |
| |
| printbuf_free(pb); |
| printf("%s: end test\n", __func__); |
| } |
| |
| static void test_printbuf_memappend(int *before_resize); |
| static void test_printbuf_memappend(int *before_resize) |
| { |
| struct printbuf *pb; |
| int initial_size; |
| |
| printf("%s: starting test\n", __func__); |
| pb = printbuf_new(); |
| printf("Buffer length: %d\n", printbuf_length(pb)); |
| |
| initial_size = pb->size; |
| |
| while(pb->size == initial_size) |
| { |
| printbuf_memappend_fast(pb, "x", 1); |
| } |
| *before_resize = printbuf_length(pb) - 1; |
| printf("Appended %d bytes for resize: [%s]\n", *before_resize + 1, pb->buf); |
| |
| printbuf_reset(pb); |
| printbuf_memappend_fast(pb, "bluexyz123", 3); |
| printf("Partial append: %d, [%s]\n", printbuf_length(pb), pb->buf); |
| |
| char with_nulls[] = { 'a', 'b', '\0', 'c' }; |
| printbuf_reset(pb); |
| printbuf_memappend_fast(pb, with_nulls, sizeof(with_nulls)); |
| printf("With embedded \\0 character: %d, [%s]\n", printbuf_length(pb), pb->buf); |
| |
| printbuf_free(pb); |
| pb = printbuf_new(); |
| char *data = malloc(*before_resize); |
| memset(data, 'X', *before_resize); |
| printbuf_memappend_fast(pb, data, *before_resize); |
| printf("Append to just before resize: %d, [%s]\n", printbuf_length(pb), pb->buf); |
| |
| free(data); |
| printbuf_free(pb); |
| |
| pb = printbuf_new(); |
| data = malloc(*before_resize + 1); |
| memset(data, 'X', *before_resize + 1); |
| printbuf_memappend_fast(pb, data, *before_resize + 1); |
| printf("Append to just after resize: %d, [%s]\n", printbuf_length(pb), pb->buf); |
| |
| free(data); |
| |
| printbuf_free(pb); |
| printf("%s: end test\n", __func__); |
| } |
| |
| static void test_sprintbuf(int before_resize); |
| static void test_sprintbuf(int before_resize) |
| { |
| struct printbuf *pb; |
| |
| printf("%s: starting test\n", __func__); |
| pb = printbuf_new(); |
| printf("Buffer length: %d\n", printbuf_length(pb)); |
| |
| char *data = malloc(before_resize + 1 + 1); |
| memset(data, 'X', before_resize + 1 + 1); |
| data[before_resize + 1] = '\0'; |
| sprintbuf(pb, "%s", data); |
| printf("sprintbuf to just after resize(%d+1): %d, [%s], strlen(buf)=%d\n", before_resize, printbuf_length(pb), pb->buf, strlen(pb->buf)); |
| |
| printbuf_reset(pb); |
| sprintbuf(pb, "plain"); |
| printf("%d, [%s]\n", printbuf_length(pb), pb->buf); |
| |
| sprintbuf(pb, "%d", 1); |
| printf("%d, [%s]\n", printbuf_length(pb), pb->buf); |
| |
| sprintbuf(pb, "%d", INT_MAX); |
| printf("%d, [%s]\n", printbuf_length(pb), pb->buf); |
| |
| sprintbuf(pb, "%d", INT_MIN); |
| printf("%d, [%s]\n", printbuf_length(pb), pb->buf); |
| |
| sprintbuf(pb, "%s", "%s"); |
| printf("%d, [%s]\n", printbuf_length(pb), pb->buf); |
| |
| printbuf_free(pb); |
| printf("%s: end test\n", __func__); |
| } |
| |
| int main(int argc, char **argv) |
| { |
| int before_resize = 0; |
| |
| mc_set_debug(1); |
| |
| test_basic_printbuf_memset(); |
| printf("========================================\n"); |
| test_printbuf_memset_length(); |
| printf("========================================\n"); |
| test_printbuf_memappend(&before_resize); |
| printf("========================================\n"); |
| test_sprintbuf(before_resize); |
| printf("========================================\n"); |
| |
| return 0; |
| } |