#!/usr/local/bin/ksh93 -p
#
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# $FreeBSD: releng/12.3/tests/sys/cddl/zfs/tests/nestedfs/nestedfs_001_pos.ksh 329867 2018-02-23 16:31:00Z asomers $

#
# Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
# Use is subject to license terms.
#
# ident	"@(#)nestedfs_001_pos.ksh	1.2	07/01/09 SMI"
#
. $STF_SUITE/include/libtest.kshlib

################################################################################
#
# __stc_assertion_start
#
# ID: nestedfs_001_pos
#
# DESCRIPTION:
# Given a pool create a nested file system and a ZFS file system
# in the nested file system. Populate the file system.
#
# As a sub-assertion, the test verifies that a nested file system with
# a mounted file system cannot be destroyed.
#
# STRATEGY:
# 1. Create a file in the new mountpoint
# 2. Unmount the new mountpoint
# 3. Show a nested file system with file systems cannot be destroyed
#
# TESTABILITY: explicit
#
# TEST_AUTOMATION_LEVEL: automated
#
# CODING_STATUS: COMPLETED (2005-07-04)
#
# __stc_assertion_end
#
################################################################################

verify_runnable "both"

typeset OP=create
typeset -i BLOCKSZ=8192
typeset -i NUM_WRITES=600
typeset -i DATA=0

log_assert "Verify a nested file system can be created/destroyed."

log_must $FILE_WRITE -o $OP -f $TESTDIR1/$TESTFILE0 -b $BLOCKSZ \
    -c $NUM_WRITES -d $DATA

log_must $ZFS unmount $TESTDIR1

log_note "Verify that a nested file system with a mounted file system "\
    "cannot be destroyed."
log_mustnot $ZFS destroy $TESTPOOL/$TESTCTR

log_pass "A nested file system was successfully populated."
