diff --git a/tests/tempfile.c b/tests/tempfile.c
index 371121a..f52b916 100644
--- a/tests/tempfile.c
+++ b/tests/tempfile.c
@@ -8,18 +8,29 @@
 #warning O_TMPFILE is missing, either too old GLIBC, Linux, or non-Linux system
 #endif
 
+#define READBACK "Reality is frequently inaccurate.\n"
+
+
 int main(void)
 {
+	int ret;
 	FILE *fp;
+	char buf[80] = "";
 
 	printf("Before tempfile():\n");
-	system("ls -lrt " _PATH_TMP " | tail -3");
+	ret = system("ls -lrt " _PATH_TMP " | tail -3");
 
 	fp = tempfile();
 	fail_unless(fp != NULL);
 
+	ret = fputs(READBACK, fp);
+	rewind(fp);
+	if (fgets(buf, sizeof(buf), fp))
+		fprintf(stderr, "\nRead-back from tempfile: %s", buf);
+	fail_unless(!strcmp(buf, READBACK));
+
 	printf("\nAfter tempfile(), should be same list:\n");
-	system("ls -lrt " _PATH_TMP " | tail -3");
+	ret = system("ls -lrt " _PATH_TMP " | tail -3");
 
 	return fclose(fp);
 }