More test cases, especially when opening the stream in append an write

modes.

1 files changed, 113 insertions, 8 deletions

diff --git a/src/regress/lib/libc/fmemopen/fmemopentest.c b/src/regress/lib/libc/fmemopen/fmemopentest.c
index ef7e9ff64f..57063aeb0a 100644
--- a/src/regress/lib/libc/fmemopen/fmemopentest.c
+++ b/src/regress/lib/libc/fmemopen/fmemopentest.c
@@ -1,4 +1,5 @@
-/*      $OpenBSD: fmemopentest.c,v 1.1 2013/01/01 17:43:07 mpi Exp $ */
+/*      $OpenBSD: fmemopentest.c,v 1.2 2013/03/27 15:08:13 mpi Exp $ */
+
 /*
  * Copyright (c) 2011 Martin Pieuchot <mpi@openbsd.org>
  *
@@ -22,15 +23,15 @@
 #include <unistd.h>
 
 int
-main(void)
+simpletest(void)
 {
         FILE    *s1, *s2;
-        char     c, string[] = "fmemopen test string!";
+        char     string[] = "fmemopen test string!";
         char     buffer[1024], *buf = NULL;
         size_t   len;
-        int      failures = 0;
+        int      c, failures = 0;
 
-        s1 = fmemopen(string, strlen(string), "r");
+        s1 = fmemopen(string, strlen(string) + 1, "r");
         if (s1 == NULL) {
                 warn("unable to open a stream s1");
                 return (1);
@@ -46,7 +47,7 @@ main(void)
         while ((c = fgetc(s1)) != EOF)
                 fputc(c, s2);
 
-        if (ftell(s2) != strlen(string)) {
+        if (ftell(s2) != strlen(string) + 1) {
                 warnx("failed copy test (1)");
                 failures++;
         }
@@ -59,10 +60,114 @@ main(void)
         }
 
         len = fread(buffer, 1, sizeof(buffer) - 1, s2);
-        if (len != strlen(string)) {
-                warnx("failed read test (3)");
+        if (len != strlen(string) + 1) {
+                warnx("failed read test (3) %zu != %zu",
+                    len, strlen(string) + 1);
+                failures++;
+        }
+
+        return (failures);
+}
+
+int
+updatetest(void)
+{
+        FILE    *s1;
+        char     string[] = "hello\0 test number 2";
+        char     buffer[256];
+        size_t   len;
+        int      failures = 0;
+
+        s1 = fmemopen(string, 19, "a+");
+        if (s1 == NULL)
+                return (1);
+
+        len = fwrite(" world", 1, 6, s1);
+        if (len != 6) {
+                warnx("failed write test (4)");
+                failures++;
+        }
+
+        fseek(s1, 0, SEEK_SET);
+        if (ftell(s1) != 0) {
+                warnx("failed seek test (5)");
+                failures++;
+        }
+
+        len = fread(buffer, 1, sizeof(buffer) - 1, s1);
+        if (strncmp(string, buffer, len)) {
+                warnx("failed compare test (6)");
+                failures++;
+        }
+
+        if (strcmp(string, "hello world")) {
+                warnx("failed compare test (7)");
+                failures++;
+        }
+
+        if (strcmp(string + strlen(string) + 1, "number 2")) {
+                warnx("failed compare test (8)");
                 failures++;
         }
 
         return (failures);
 }
+
+int
+writetest(void)
+{
+        FILE    *s1;
+        char     string[] = "super test number 3";
+        char     buffer[256];
+        size_t   len, slen;
+        int      failures = 0;
+
+        slen = strlen(string) + 1;
+
+        s1 = fmemopen(string, slen, "w");
+        if (s1 == NULL)
+                return (1);
+
+        len = fwrite("short", 1, 5, s1);
+        if (len != strlen("short")) {
+                warnx("failed write test (9)");
+                failures++;
+        }
+        fclose(s1);
+
+        s1 = fmemopen(string, slen, "r");
+        if (s1 == NULL) {
+                warnx("failed open test (10)");
+                failures++;
+        }
+
+        len = fread(buffer, 1, sizeof(buffer) - 1, s1);
+        if (strncmp(string, buffer, len)) {
+                warnx("failed compare test (11)");
+                failures++;
+        }
+
+        if (strcmp(string, "short")) {
+                warnx("failed compare test (12)");
+                failures++;
+        }
+
+        if (strcmp(string + strlen(string) + 1, "test number 3")) {
+                warnx("failed compare test (13)");
+                failures++;
+        }
+
+        return (failures);
+}
+
+int
+main(void)
+{
+        int      failures = 0;
+
+        failures += simpletest();
+        failures += updatetest();
+        failures += writetest();
+
+        return (failures);
+}