Modify test for dynstr_fwrite to check that it wrote correctly.

1 files changed, 11 insertions, 1 deletions

diff --git a/unittests.c b/unittests.c
index 95ce355..aea00e5 100644
--- a/unittests.c
+++ b/unittests.c
@@ -966,13 +966,15 @@ static int test_fwrite_writes_string(void)
     int fd;
     size_t num_bytes;
     Dynstr *dynstr;
+    Dynstr *dynstr2;
+    char buf[1024];
+    int read_bytes;
     
     dynstr = new_from_cstring("life is too short for str* and mem* in apps");
     
     fd = mkstemp(tempname);
     if (fd == -1)
         abort();
-    close(fd);
 
     f = fopen(tempname, "w");
     num_bytes = dynstr_fwrite(f, dynstr);
@@ -981,6 +983,14 @@ static int test_fwrite_writes_string(void)
     FAIL_UNLESS_EQUAL(num_bytes, dynstr_len(dynstr));
     
     /* FIXME: should compare contents of strings, too */
+    read_bytes = read(fd, buf, sizeof(buf));
+    if (read_bytes == -1)
+        abort();
+    close(fd);
+    dynstr2 = dynstr_new_from_memory(buf, read_bytes);
+    FAIL_UNLESS_EQUAL(read_bytes, dynstr_len(dynstr));
+    FAIL_UNLESS_EQUAL(dynstr_cmp(dynstr, dynstr2), 0);
+    dynstr_free(dynstr2);
 
     return true;
 }