diff options
Diffstat (limited to 'src/format.c')
-rw-r--r-- | src/format.c | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/src/format.c b/src/format.c index db903e3..f9d0ed4 100644 --- a/src/format.c +++ b/src/format.c @@ -321,3 +321,103 @@ fmt_pid (rp_window_elem *elem, struct sbuf *buf) else sbuf_concat (buf, "?"); } + +#ifdef RUN_FORMAT_TEST + +#include <assert.h> +#include <locale.h> + +void rtp_test_concat_width(void); + +int main(void) +{ + /* We need to set up locale information for multibyte functions to work + correctly. */ + setlocale(LC_ALL, ""); + + rtp_test_concat_width(); + return 0; +} + +void rtp_test_concat_width(void) +{ + struct sbuf *buf = NULL; + + /* Zero length string, no limit. */ + + buf = sbuf_new(0); + concat_width(buf, "", -1); + assert(strcmp(sbuf_get(buf), "") == 0); + sbuf_free(buf); + + /* Zero length string, non-zero limit. */ + + buf = sbuf_new(0); + concat_width(buf, "", 5); + assert(strcmp(sbuf_get(buf), "") == 0); + sbuf_free(buf); + + /* ASCII string, no limit. */ + + buf = sbuf_new(0); + concat_width(buf, "hi there", -1); + assert(strcmp(sbuf_get(buf), "hi there") == 0); + concat_width(buf, " you", -1); + assert(strcmp(sbuf_get(buf), "hi there you") == 0); + sbuf_free(buf); + + /* ASCII string, non-zero limit, truncated. */ + + buf = sbuf_new(0); + concat_width(buf, "hi there", 4); + assert(strcmp(sbuf_get(buf), "hi t") == 0); + sbuf_free(buf); + + /* ASCII string, non-zero limit, not truncated. */ + + buf = sbuf_new(0); + concat_width(buf, "hi", 4); + assert(strcmp(sbuf_get(buf), "hi") == 0); + sbuf_free(buf); + + /* UTF-8 string, no limit. */ + + buf = sbuf_new(0); + /* 0xe2 0x84 0xa2 is U+2122, the trademark symbol. */ + concat_width(buf, "hi \xe2\x84\xa2 there", -1); + assert(strcmp(sbuf_get(buf), "hi \xe2\x84\xa2 there") == 0); + sbuf_free(buf); + + /* UTF-8 string, non-zero limit, truncated at an okay spot counting either + by bytes or by characters. */ + + buf = sbuf_new(0); + concat_width(buf, "hi \xe2\x84\xa2 there you", 11); + assert(strcmp(sbuf_get(buf), "hi \xe2\x84\xa2 there ") == 0); + sbuf_free(buf); + + /* UTF-8 string, non-zero limit, truncated such that if the limit were in + bytes that we would cut in the middle of a character. */ + + buf = sbuf_new(0); + concat_width(buf, "hi \xe2\x84\xa2 there you", 5); + assert(strcmp(sbuf_get(buf), "hi \xe2\x84\xa2 ") == 0); + sbuf_free(buf); + + /* UTF-8 string, non-zero limit, not truncated. */ + + buf = sbuf_new(0); + concat_width(buf, "hi \xe2\x84\xa2 there you", 20); + assert(strcmp(sbuf_get(buf), "hi \xe2\x84\xa2 there you") == 0); + sbuf_free(buf); + + /* Invalid character. */ + + buf = sbuf_new(0); + /* This is an invalid UTF-8 sequence. It's missing 0xa2. */ + concat_width(buf, "hi \xe2\x84 there you", 20); + assert(strcmp(sbuf_get(buf), "hi ") == 0); + sbuf_free(buf); +} + +#endif |