ccan/cdump/test/run-02-parse.c

   1 #include <ccan/cdump/cdump_parse.c>
   2 #include <ccan/tap/tap.h>
   3 #include <sys/types.h>
   4 #include <sys/stat.h>
   5 #include <fcntl.h>
   6 #include <unistd.h>
   7
   8 static size_t diffoff(const char *a, const char *b)
   9 {
  10         size_t i;
  11
  12         for (i = 0; a[i]; i++)
  13                 if (b[i] != a[i])
  14                         break;
  15         return i;
  16 }
  17
  18 static char *read_file(const void *ctx, const char *fname)
  19 {
  20         int fd = open(fname, O_RDONLY);
  21         off_t len = lseek(fd, 0, SEEK_END);
  22         char *ret = talloc_array(ctx, char, len + 1);
  23         lseek(fd, 0, SEEK_SET);
  24         read(fd, ret, len);
  25         ret[len] = '\0';
  26         close(fd);
  27         return ret;
  28 }
  29
  30 int main(int argc, char *argv[])
  31 {
  32         char *ret, *decls, *defs;
  33         char *toplevel = talloc_strdup(NULL, "toplevel");
  34         char *header, *definitions, *declarations;
  35
  36         plan_tests(5);
  37         header = read_file(toplevel, "test/test_header.h");
  38         declarations = read_file(toplevel, "test/example_generated-decls.h");
  39         definitions = read_file(toplevel, "test/example_generated-defs.h");
  40
  41         ret = cdump_parse(toplevel, header, &decls, &defs);
  42         ok1(ret == NULL);
  43         ok(streq(decls, declarations),
  44            "Declarations differ at %zu: ...'%.*s' vs ...'%.*s'",
  45            diffoff(decls, declarations),
  46            30, decls + diffoff(decls, declarations),
  47            30, declarations + diffoff(decls, declarations));
  48         ok(streq(defs, definitions),
  49            "Definitions differ at %zu: ...'%.*s' vs ...'%.*s'",
  50            diffoff(defs, definitions),
  51            30, defs + diffoff(defs, definitions),
  52            30, definitions + diffoff(defs, definitions));
  53
  54         ok1(talloc_find_parent_byname(decls, "toplevel") == toplevel);
  55         ok1(talloc_find_parent_byname(defs, "toplevel") == toplevel);
  56
  57         talloc_free(toplevel);
  58         return exit_status();
  59 }