+ fix tests

t/t_logfile.c

@@ -4,5 +4,39 @@
 #include "../src/logfile.h"
 
 int main() {
+  f2b_logfile_t file;
+  char filename[] = "/tmp/f2b-test.XXXXXX";
+  int fd = 0;
+  FILE *wfd = NULL;
+  char buf[2048];
+
+  assert((fd = mkstemp(filename)) > 0);
+  assert((wfd = fdopen(fd, "a")) != NULL);
+  assert(fputs("test1\n", wfd) > 0);
+  assert(fflush(wfd) == 0);
+
+  assert(f2b_logfile_open(&file, filename) == true);
+  assert(f2b_logfile_getline(&file, buf, sizeof(buf)) == false);
+
+  assert(fputs("test2\n", wfd) > 0);
+  assert(fflush(wfd) == 0);
+
+  assert(f2b_logfile_getline(&file, buf, sizeof(buf)) == true);
+  assert(strncmp(buf, "test2\n", sizeof(buf)) == 0);
+
+  assert(f2b_logfile_getline(&file, buf, sizeof(buf)) == false);
+
+  fclose(wfd);
+  close(fd);
+  unlink(filename);
+
+  assert((wfd = fopen(filename, "a")) != 0);
+
+  assert(f2b_logfile_rotated(&file) == true);
+
+  f2b_logfile_close(&file);
+  fclose(wfd);
+  unlink(filename);
+
   exit(0);
 }