Another test for more coverage

test/test_read_file.c

@@ -104,7 +104,7 @@ END_TEST
 
 START_TEST (test_read_file_too_big)
     char *content;
-    const char *filename = "test_read_file_simple";
+    const char *filename = "test_read_file_too_big";
     size_t len;
     ssize_t rc;
 
@@ -124,6 +124,32 @@ START_TEST (test_read_file_too_big)
     unlink(filename);
 END_TEST
 
+START_TEST (test_read_file_big)
+    char *content;
+    const char *filename = "test_read_file_big";
+    char buf[4096 * 16];
+    size_t len;
+    ssize_t rc;
+
+    int fd = open(filename, O_WRONLY | O_CREAT | O_TRUNC, 0664);
+    fail_if(fd == -1);
+    memset(buf, 'a', sizeof buf);
+
+    rc = write(fd, buf, sizeof buf);
+    fail_if(rc != sizeof buf, "rc was %ld", (long)rc);
+
+    close(fd);
+
+    content = uc_read_file(filename, &len, 4096*16);
+    fail_if(content == NULL);
+    fail_if(len != sizeof buf);
+    fail_if(memcmp(content, buf, sizeof buf) != 0);
+
+    free(content);
+
+    unlink(filename);
+END_TEST
+
 Suite *read_file_suite(void)
 {
     Suite *s = suite_create("read_file");
@@ -134,6 +160,7 @@ Suite *read_file_suite(void)
     tcase_add_test(tc, test_read_file_boundary);
     tcase_add_test(tc, test_read_file_devnull);
     tcase_add_test(tc, test_read_file_too_big);
+    tcase_add_test(tc, test_read_file_big);
 
 
     suite_add_tcase(s, tc);