diff options
Diffstat (limited to 'json-c/src/tests/test_printbuf.c')
| -rw-r--r-- | json-c/src/tests/test_printbuf.c | 166 |
1 files changed, 166 insertions, 0 deletions
diff --git a/json-c/src/tests/test_printbuf.c b/json-c/src/tests/test_printbuf.c new file mode 100644 index 0000000..b363296 --- /dev/null +++ b/json-c/src/tests/test_printbuf.c @@ -0,0 +1,166 @@ +#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, (int)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);
+ free(data);
+ printf("sprintbuf to just after resize(%d+1): %d, [%s], strlen(buf)=%d\n", before_resize, printbuf_length(pb), pb->buf, (int)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;
+}
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