diff --git a/tests/f_collapse_extent_tree/expect.1 b/tests/f_collapse_extent_tree/expect.1
new file mode 100644
index 00000000..e2eb65e0
--- /dev/null
+++ b/tests/f_collapse_extent_tree/expect.1
@@ -0,0 +1,16 @@
+debugfs: ex /a
+Level Entries       Logical      Physical Length Flags
+ 0/ 1   1/  1     0 -     0     9              1
+ 1/ 1   1/  1     0 -     0    10 -    10      1 
+Pass 1: Checking inodes, blocks, and sizes
+Inode 12 extent tree (at level 1) could be shorter.  Fix? yes
+
+Pass 1E: Optimizing extent trees
+Pass 2: Checking directory structure
+Pass 3: Checking directory connectivity
+Pass 4: Checking reference counts
+Pass 5: Checking group summary information
+
+test_filesys: ***** FILE SYSTEM WAS MODIFIED *****
+test_filesys: 12/128 files (0.0% non-contiguous), 19/512 blocks
+Exit status is 1
diff --git a/tests/f_collapse_extent_tree/expect.2 b/tests/f_collapse_extent_tree/expect.2
new file mode 100644
index 00000000..a1d28b1b
--- /dev/null
+++ b/tests/f_collapse_extent_tree/expect.2
@@ -0,0 +1,10 @@
+Pass 1: Checking inodes, blocks, and sizes
+Pass 2: Checking directory structure
+Pass 3: Checking directory connectivity
+Pass 4: Checking reference counts
+Pass 5: Checking group summary information
+test_filesys: 12/128 files (0.0% non-contiguous), 19/512 blocks
+Exit status is 0
+debugfs: ex /a
+Level Entries       Logical      Physical Length Flags
+ 0/ 0   1/  1     0 -     0    10 -    10      1 
diff --git a/tests/f_collapse_extent_tree/image.gz b/tests/f_collapse_extent_tree/image.gz
new file mode 100644
index 00000000..97036cc5
Binary files /dev/null and b/tests/f_collapse_extent_tree/image.gz differ
diff --git a/tests/f_collapse_extent_tree/name b/tests/f_collapse_extent_tree/name
new file mode 100644
index 00000000..83e506fc
--- /dev/null
+++ b/tests/f_collapse_extent_tree/name
@@ -0,0 +1 @@
+extent tree can be collapsed one level
diff --git a/tests/f_collapse_extent_tree/script b/tests/f_collapse_extent_tree/script
new file mode 100644
index 00000000..ee184389
--- /dev/null
+++ b/tests/f_collapse_extent_tree/script
@@ -0,0 +1,118 @@
+if [ "$DESCRIPTION"x != x ]; then
+	test_description="$DESCRIPTION"
+fi
+if [ "$IMAGE"x = x ]; then
+	IMAGE=$test_dir/image.gz
+fi
+
+if [ "$FSCK_OPT"x = x ]; then
+	FSCK_OPT=-yf
+fi
+
+if [ "$SECOND_FSCK_OPT"x = x ]; then
+	SECOND_FSCK_OPT=-yf
+fi
+
+if [ "$OUT1"x = x ]; then
+	OUT1=$test_name.1.log
+fi
+
+if [ "$OUT2"x = x ]; then
+	OUT2=$test_name.2.log
+fi
+
+if [ "$EXP1"x = x ]; then
+	if [ -f $test_dir/expect.1.gz ]; then
+		EXP1=$test_name.1.tmp
+		gunzip < $test_dir/expect.1.gz > $EXP1
+	else
+		EXP1=$test_dir/expect.1
+	fi
+fi
+
+if [ "$EXP2"x = x ]; then
+	if [ -f $test_dir/expect.2.gz ]; then
+		EXP2=$test_name.2.tmp
+		gunzip < $test_dir/expect.2.gz > $EXP2
+	else
+		EXP2=$test_dir/expect.2
+	fi
+fi
+
+if [ "$SKIP_GUNZIP" != "true" ] ; then
+	gunzip < $IMAGE > $TMPFILE
+fi
+
+cp /dev/null $OUT1
+
+eval $PREP_CMD
+
+echo 'ex /a' > $TMPFILE.cmd
+$DEBUGFS -f $TMPFILE.cmd $TMPFILE > $OUT1.new 2>&1
+rm -rf $TMPFILE.cmd
+$FSCK $FSCK_OPT  -N test_filesys $TMPFILE >> $OUT1.new 2>&1
+status=$?
+echo Exit status is $status >> $OUT1.new
+sed -f $cmd_dir/filter.sed -e "s;$TMPFILE;test.img;" $OUT1.new >> $OUT1
+rm -f $OUT1.new
+
+if [ "$ONE_PASS_ONLY" != "true" ]; then
+	$FSCK $SECOND_FSCK_OPT -N test_filesys $TMPFILE > $OUT2.new 2>&1 
+	status=$?
+	echo Exit status is $status >> $OUT2.new
+	echo 'ex /a' > $TMPFILE.cmd
+	$DEBUGFS -f $TMPFILE.cmd $TMPFILE >> $OUT2.new 2>&1
+	rm -rf $TMPFILE.cmd
+	sed -f $cmd_dir/filter.sed -e "s;$TMPFILE;test.img;" $OUT2.new > $OUT2
+	rm -f $OUT2.new
+fi
+
+eval $AFTER_CMD
+
+if [ "$SKIP_VERIFY" != "true" ] ; then
+	rm -f $test_name.ok $test_name.failed
+	cmp -s $OUT1 $EXP1
+	status1=$?
+	if [ "$ONE_PASS_ONLY" != "true" ]; then
+		cmp -s $OUT2 $EXP2
+		status2=$?
+	else
+		status2=0
+	fi
+	if [ "$PASS_ZERO" = "true" ]; then
+		cmp -s $test_name.0.log	$test_dir/expect.0
+		status3=$?
+	else
+		status3=0
+	fi
+
+	if [ -z "$test_description" ] ; then
+		description="$test_name"
+	else
+		description="$test_name: $test_description"
+	fi
+
+	if [ "$status1" -eq 0 -a "$status2" -eq 0 -a "$status3" -eq 0 ] ; then
+		echo "$description: ok"
+		touch $test_name.ok
+	else
+		echo "$description: failed"
+		rm -f $test_name.failed
+		if [ "$PASS_ZERO" = "true" ]; then
+			diff $DIFF_OPTS $test_dir/expect.0 \
+				$test_name.0.log >> $test_name.failed
+		fi
+		diff $DIFF_OPTS $EXP1 $OUT1 >> $test_name.failed
+		if [ "$ONE_PASS_ONLY" != "true" ]; then
+			diff $DIFF_OPTS $EXP2 $OUT2 >> $test_name.failed
+		fi
+	fi
+	rm -f tmp_expect
+fi
+
+if [ "$SKIP_CLEANUP" != "true" ] ; then
+	unset IMAGE FSCK_OPT SECOND_FSCK_OPT OUT1 OUT2 EXP1 EXP2 
+	unset SKIP_VERIFY SKIP_CLEANUP SKIP_GUNZIP ONE_PASS_ONLY PREP_CMD
+	unset DESCRIPTION SKIP_UNLINK AFTER_CMD PASS_ZERO
+fi
+
diff --git a/tests/f_compress_extent_tree_level/expect.1 b/tests/f_compress_extent_tree_level/expect.1
new file mode 100644
index 00000000..1159f24d
--- /dev/null
+++ b/tests/f_compress_extent_tree_level/expect.1
@@ -0,0 +1,23 @@
+debugfs: ex /a
+Level Entries       Logical      Physical Length Flags
+ 0/ 1   1/  2     0 -    16     9             17
+ 1/ 1   1/  4     0 -     0    10 -    10      1 
+ 1/ 1   2/  4    11 -    11   100 -   100      1 
+ 1/ 1   3/  4    13 -    13   101 -   101      1 
+ 1/ 1   4/  4    15 -    15   102 -   102      1 
+ 0/ 1   2/  2    17 -    21    12              5
+ 1/ 1   1/  3    17 -    17   103 -   103      1 
+ 1/ 1   2/  3    19 -    19   104 -   104      1 
+ 1/ 1   3/  3    21 -    21   105 -   105      1 
+Pass 1: Checking inodes, blocks, and sizes
+Inode 12 extent tree (at (level 1) could be narrower.  Fix? yes
+
+Pass 1E: Optimizing extent trees
+Pass 2: Checking directory structure
+Pass 3: Checking directory connectivity
+Pass 4: Checking reference counts
+Pass 5: Checking group summary information
+
+test_filesys: ***** FILE SYSTEM WAS MODIFIED *****
+test_filesys: 12/128 files (8.3% non-contiguous), 26/512 blocks
+Exit status is 1
diff --git a/tests/f_compress_extent_tree_level/expect.2 b/tests/f_compress_extent_tree_level/expect.2
new file mode 100644
index 00000000..07d10829
--- /dev/null
+++ b/tests/f_compress_extent_tree_level/expect.2
@@ -0,0 +1,17 @@
+Pass 1: Checking inodes, blocks, and sizes
+Pass 2: Checking directory structure
+Pass 3: Checking directory connectivity
+Pass 4: Checking reference counts
+Pass 5: Checking group summary information
+test_filesys: 12/128 files (8.3% non-contiguous), 26/512 blocks
+Exit status is 0
+debugfs: ex /a
+Level Entries       Logical      Physical Length Flags
+ 0/ 1   1/  1     0 -    21     9             22
+ 1/ 1   1/  7     0 -     0    10 -    10      1 
+ 1/ 1   2/  7    11 -    11   100 -   100      1 
+ 1/ 1   3/  7    13 -    13   101 -   101      1 
+ 1/ 1   4/  7    15 -    15   102 -   102      1 
+ 1/ 1   5/  7    17 -    17   103 -   103      1 
+ 1/ 1   6/  7    19 -    19   104 -   104      1 
+ 1/ 1   7/  7    21 -    21   105 -   105      1 
diff --git a/tests/f_compress_extent_tree_level/image.gz b/tests/f_compress_extent_tree_level/image.gz
new file mode 100644
index 00000000..a552a586
Binary files /dev/null and b/tests/f_compress_extent_tree_level/image.gz differ
diff --git a/tests/f_compress_extent_tree_level/name b/tests/f_compress_extent_tree_level/name
new file mode 100644
index 00000000..fde4f4ad
--- /dev/null
+++ b/tests/f_compress_extent_tree_level/name
@@ -0,0 +1 @@
+compress an extent tree level
diff --git a/tests/f_compress_extent_tree_level/script b/tests/f_compress_extent_tree_level/script
new file mode 100644
index 00000000..ee184389
--- /dev/null
+++ b/tests/f_compress_extent_tree_level/script
@@ -0,0 +1,118 @@
+if [ "$DESCRIPTION"x != x ]; then
+	test_description="$DESCRIPTION"
+fi
+if [ "$IMAGE"x = x ]; then
+	IMAGE=$test_dir/image.gz
+fi
+
+if [ "$FSCK_OPT"x = x ]; then
+	FSCK_OPT=-yf
+fi
+
+if [ "$SECOND_FSCK_OPT"x = x ]; then
+	SECOND_FSCK_OPT=-yf
+fi
+
+if [ "$OUT1"x = x ]; then
+	OUT1=$test_name.1.log
+fi
+
+if [ "$OUT2"x = x ]; then
+	OUT2=$test_name.2.log
+fi
+
+if [ "$EXP1"x = x ]; then
+	if [ -f $test_dir/expect.1.gz ]; then
+		EXP1=$test_name.1.tmp
+		gunzip < $test_dir/expect.1.gz > $EXP1
+	else
+		EXP1=$test_dir/expect.1
+	fi
+fi
+
+if [ "$EXP2"x = x ]; then
+	if [ -f $test_dir/expect.2.gz ]; then
+		EXP2=$test_name.2.tmp
+		gunzip < $test_dir/expect.2.gz > $EXP2
+	else
+		EXP2=$test_dir/expect.2
+	fi
+fi
+
+if [ "$SKIP_GUNZIP" != "true" ] ; then
+	gunzip < $IMAGE > $TMPFILE
+fi
+
+cp /dev/null $OUT1
+
+eval $PREP_CMD
+
+echo 'ex /a' > $TMPFILE.cmd
+$DEBUGFS -f $TMPFILE.cmd $TMPFILE > $OUT1.new 2>&1
+rm -rf $TMPFILE.cmd
+$FSCK $FSCK_OPT  -N test_filesys $TMPFILE >> $OUT1.new 2>&1
+status=$?
+echo Exit status is $status >> $OUT1.new
+sed -f $cmd_dir/filter.sed -e "s;$TMPFILE;test.img;" $OUT1.new >> $OUT1
+rm -f $OUT1.new
+
+if [ "$ONE_PASS_ONLY" != "true" ]; then
+	$FSCK $SECOND_FSCK_OPT -N test_filesys $TMPFILE > $OUT2.new 2>&1 
+	status=$?
+	echo Exit status is $status >> $OUT2.new
+	echo 'ex /a' > $TMPFILE.cmd
+	$DEBUGFS -f $TMPFILE.cmd $TMPFILE >> $OUT2.new 2>&1
+	rm -rf $TMPFILE.cmd
+	sed -f $cmd_dir/filter.sed -e "s;$TMPFILE;test.img;" $OUT2.new > $OUT2
+	rm -f $OUT2.new
+fi
+
+eval $AFTER_CMD
+
+if [ "$SKIP_VERIFY" != "true" ] ; then
+	rm -f $test_name.ok $test_name.failed
+	cmp -s $OUT1 $EXP1
+	status1=$?
+	if [ "$ONE_PASS_ONLY" != "true" ]; then
+		cmp -s $OUT2 $EXP2
+		status2=$?
+	else
+		status2=0
+	fi
+	if [ "$PASS_ZERO" = "true" ]; then
+		cmp -s $test_name.0.log	$test_dir/expect.0
+		status3=$?
+	else
+		status3=0
+	fi
+
+	if [ -z "$test_description" ] ; then
+		description="$test_name"
+	else
+		description="$test_name: $test_description"
+	fi
+
+	if [ "$status1" -eq 0 -a "$status2" -eq 0 -a "$status3" -eq 0 ] ; then
+		echo "$description: ok"
+		touch $test_name.ok
+	else
+		echo "$description: failed"
+		rm -f $test_name.failed
+		if [ "$PASS_ZERO" = "true" ]; then
+			diff $DIFF_OPTS $test_dir/expect.0 \
+				$test_name.0.log >> $test_name.failed
+		fi
+		diff $DIFF_OPTS $EXP1 $OUT1 >> $test_name.failed
+		if [ "$ONE_PASS_ONLY" != "true" ]; then
+			diff $DIFF_OPTS $EXP2 $OUT2 >> $test_name.failed
+		fi
+	fi
+	rm -f tmp_expect
+fi
+
+if [ "$SKIP_CLEANUP" != "true" ] ; then
+	unset IMAGE FSCK_OPT SECOND_FSCK_OPT OUT1 OUT2 EXP1 EXP2 
+	unset SKIP_VERIFY SKIP_CLEANUP SKIP_GUNZIP ONE_PASS_ONLY PREP_CMD
+	unset DESCRIPTION SKIP_UNLINK AFTER_CMD PASS_ZERO
+fi
+
diff --git a/tests/f_convert_bmap/expect.1 b/tests/f_convert_bmap/expect.1
new file mode 100644
index 00000000..7d2ca86e
--- /dev/null
+++ b/tests/f_convert_bmap/expect.1
@@ -0,0 +1,26 @@
+debugfs: stat /a
+Inode: 12   Type: regular    Mode:  0644   Flags: 0x0
+Generation: 1573716129    Version: 0x00000000:00000001
+User:     0   Group:     0   Size: 524288
+File ACL: 0    Directory ACL: 0
+Links: 1   Blockcount: 1030
+Fragment:  Address: 0    Number: 0    Size: 0
+ ctime: 0x5457f87a:62ae2980 -- Mon Nov  3 21:49:46 2014
+ atime: 0x5457f87a:61ba0598 -- Mon Nov  3 21:49:46 2014
+ mtime: 0x5457f87a:62ae2980 -- Mon Nov  3 21:49:46 2014
+crtime: 0x5457f87a:61ba0598 -- Mon Nov  3 21:49:46 2014
+Size of extra inode fields: 28
+BLOCKS:
+(0-11):1025-1036, (IND):24, (12-267):1037-1292, (DIND):25, (IND):41, (268-511):1293-1536
+TOTAL: 515
+
+Pass 1: Checking inodes, blocks, and sizes
+Pass 1E: Optimizing extent trees
+Pass 2: Checking directory structure
+Pass 3: Checking directory connectivity
+Pass 4: Checking reference counts
+Pass 5: Checking group summary information
+
+test_filesys: ***** FILE SYSTEM WAS MODIFIED *****
+test_filesys: 12/128 files (8.3% non-contiguous), 570/2048 blocks
+Exit status is 1
diff --git a/tests/f_convert_bmap/expect.2 b/tests/f_convert_bmap/expect.2
new file mode 100644
index 00000000..632d411e
--- /dev/null
+++ b/tests/f_convert_bmap/expect.2
@@ -0,0 +1,10 @@
+Pass 1: Checking inodes, blocks, and sizes
+Pass 2: Checking directory structure
+Pass 3: Checking directory connectivity
+Pass 4: Checking reference counts
+Pass 5: Checking group summary information
+test_filesys: 12/128 files (0.0% non-contiguous), 570/2048 blocks
+Exit status is 0
+debugfs: ex /a
+Level Entries       Logical      Physical Length Flags
+ 0/ 0   1/  1     0 -   511  1025 -  1536    512 
diff --git a/tests/f_convert_bmap/image.gz b/tests/f_convert_bmap/image.gz
new file mode 100644
index 00000000..7c225323
Binary files /dev/null and b/tests/f_convert_bmap/image.gz differ
diff --git a/tests/f_convert_bmap/name b/tests/f_convert_bmap/name
new file mode 100644
index 00000000..67e0d476
--- /dev/null
+++ b/tests/f_convert_bmap/name
@@ -0,0 +1 @@
+convert blockmap file to extents file
diff --git a/tests/f_convert_bmap/script b/tests/f_convert_bmap/script
new file mode 100644
index 00000000..f6b6f622
--- /dev/null
+++ b/tests/f_convert_bmap/script
@@ -0,0 +1,117 @@
+if [ "$DESCRIPTION"x != x ]; then
+	test_description="$DESCRIPTION"
+fi
+if [ "$IMAGE"x = x ]; then
+	IMAGE=$test_dir/image.gz
+fi
+
+if [ "$FSCK_OPT"x = x ]; then
+	FSCK_OPT=-yf
+fi
+
+if [ "$SECOND_FSCK_OPT"x = x ]; then
+	SECOND_FSCK_OPT=-yf
+fi
+
+if [ "$OUT1"x = x ]; then
+	OUT1=$test_name.1.log
+fi
+
+if [ "$OUT2"x = x ]; then
+	OUT2=$test_name.2.log
+fi
+
+if [ "$EXP1"x = x ]; then
+	if [ -f $test_dir/expect.1.gz ]; then
+		EXP1=$test_name.1.tmp
+		gunzip < $test_dir/expect.1.gz > $EXP1
+	else
+		EXP1=$test_dir/expect.1
+	fi
+fi
+
+if [ "$EXP2"x = x ]; then
+	if [ -f $test_dir/expect.2.gz ]; then
+		EXP2=$test_name.2.tmp
+		gunzip < $test_dir/expect.2.gz > $EXP2
+	else
+		EXP2=$test_dir/expect.2
+	fi
+fi
+
+if [ "$SKIP_GUNZIP" != "true" ] ; then
+	gunzip < $IMAGE > $TMPFILE
+fi
+
+cp /dev/null $OUT1
+
+eval $PREP_CMD
+
+echo 'stat /a' > $TMPFILE.cmd
+$DEBUGFS -f $TMPFILE.cmd $TMPFILE > $OUT1.new 2>&1
+rm -rf $TMPFILE.cmd
+$TUNE2FS -O extent $TMPFILE >> $OUT1.new 2>&1
+$FSCK $FSCK_OPT -E bmap2extent -N test_filesys $TMPFILE >> $OUT1.new 2>&1
+status=$?
+echo Exit status is $status >> $OUT1.new
+sed -f $cmd_dir/filter.sed -e "s;$TMPFILE;test.img;" $OUT1.new >> $OUT1
+rm -f $OUT1.new
+
+$FSCK $SECOND_FSCK_OPT -N test_filesys $TMPFILE > $OUT2.new 2>&1 
+status=$?
+echo Exit status is $status >> $OUT2.new
+echo 'ex /a' > $TMPFILE.cmd
+$DEBUGFS -f $TMPFILE.cmd $TMPFILE >> $OUT2.new 2>&1
+rm -rf $TMPFILE.cmd
+sed -f $cmd_dir/filter.sed -e "s;$TMPFILE;test.img;" $OUT2.new > $OUT2
+rm -f $OUT2.new
+
+eval $AFTER_CMD
+
+if [ "$SKIP_VERIFY" != "true" ] ; then
+	rm -f $test_name.ok $test_name.failed
+	cmp -s $OUT1 $EXP1
+	status1=$?
+	if [ "$ONE_PASS_ONLY" != "true" ]; then
+		cmp -s $OUT2 $EXP2
+		status2=$?
+	else
+		status2=0
+	fi
+	if [ "$PASS_ZERO" = "true" ]; then
+		cmp -s $test_name.0.log	$test_dir/expect.0
+		status3=$?
+	else
+		status3=0
+	fi
+
+	if [ -z "$test_description" ] ; then
+		description="$test_name"
+	else
+		description="$test_name: $test_description"
+	fi
+
+	if [ "$status1" -eq 0 -a "$status2" -eq 0 -a "$status3" -eq 0 ] ; then
+		echo "$description: ok"
+		touch $test_name.ok
+	else
+		echo "$description: failed"
+		rm -f $test_name.failed
+		if [ "$PASS_ZERO" = "true" ]; then
+			diff $DIFF_OPTS $test_dir/expect.0 \
+				$test_name.0.log >> $test_name.failed
+		fi
+		diff $DIFF_OPTS $EXP1 $OUT1 >> $test_name.failed
+		if [ "$ONE_PASS_ONLY" != "true" ]; then
+			diff $DIFF_OPTS $EXP2 $OUT2 >> $test_name.failed
+		fi
+	fi
+	rm -f tmp_expect
+fi
+
+if [ "$SKIP_CLEANUP" != "true" ] ; then
+	unset IMAGE FSCK_OPT SECOND_FSCK_OPT OUT1 OUT2 EXP1 EXP2 
+	unset SKIP_VERIFY SKIP_CLEANUP SKIP_GUNZIP ONE_PASS_ONLY PREP_CMD
+	unset DESCRIPTION SKIP_UNLINK AFTER_CMD PASS_ZERO
+fi
+
diff --git a/tests/f_convert_bmap_and_extent/expect.1 b/tests/f_convert_bmap_and_extent/expect.1
new file mode 100644
index 00000000..7af91aa3
--- /dev/null
+++ b/tests/f_convert_bmap_and_extent/expect.1
@@ -0,0 +1,33 @@
+debugfs: stat /a
+Inode: 12   Type: regular    Mode:  0644   Flags: 0x0
+Generation: 1573716129    Version: 0x00000000:00000001
+User:     0   Group:     0   Size: 524288
+File ACL: 0    Directory ACL: 0
+Links: 1   Blockcount: 1030
+Fragment:  Address: 0    Number: 0    Size: 0
+ ctime: 0x5457f87a:62ae2980 -- Mon Nov  3 21:49:46 2014
+ atime: 0x5457f87a:61ba0598 -- Mon Nov  3 21:49:46 2014
+ mtime: 0x5457f87a:62ae2980 -- Mon Nov  3 21:49:46 2014
+crtime: 0x5457f87a:61ba0598 -- Mon Nov  3 21:49:46 2014
+Size of extra inode fields: 28
+BLOCKS:
+(0-11):1025-1036, (IND):24, (12-267):1037-1292, (DIND):25, (IND):41, (268-511):1293-1536
+TOTAL: 515
+
+debugfs: ex /zero
+Level Entries       Logical      Physical Length Flags
+ 0/ 1   1/  1     0 -     8    28              9
+ 1/ 1   1/  4     0 -     0    27 -    27      1 
+ 1/ 1   2/  4     2 -     2    29 -    29      1 
+ 1/ 1   3/  4     4 -     4    31 -    31      1 
+ 1/ 1   4/  4     6 -     6    33 -    33      1 
+Pass 1: Checking inodes, blocks, and sizes
+Pass 1E: Optimizing extent trees
+Pass 2: Checking directory structure
+Pass 3: Checking directory connectivity
+Pass 4: Checking reference counts
+Pass 5: Checking group summary information
+
+test_filesys: ***** FILE SYSTEM WAS MODIFIED *****
+test_filesys: 13/128 files (15.4% non-contiguous), 574/2048 blocks
+Exit status is 1
diff --git a/tests/f_convert_bmap_and_extent/expect.2 b/tests/f_convert_bmap_and_extent/expect.2
new file mode 100644
index 00000000..73765eaa
--- /dev/null
+++ b/tests/f_convert_bmap_and_extent/expect.2
@@ -0,0 +1,16 @@
+Pass 1: Checking inodes, blocks, and sizes
+Pass 2: Checking directory structure
+Pass 3: Checking directory connectivity
+Pass 4: Checking reference counts
+Pass 5: Checking group summary information
+test_filesys: 13/128 files (7.7% non-contiguous), 574/2048 blocks
+Exit status is 0
+debugfs: ex /a
+Level Entries       Logical      Physical Length Flags
+ 0/ 0   1/  1     0 -   511  1025 -  1536    512 
+debugfs: ex /zero
+Level Entries       Logical      Physical Length Flags
+ 0/ 0   1/  4     0 -     0    27 -    27      1 
+ 0/ 0   2/  4     2 -     2    29 -    29      1 
+ 0/ 0   3/  4     4 -     4    31 -    31      1 
+ 0/ 0   4/  4     6 -     6    33 -    33      1 
diff --git a/tests/f_convert_bmap_and_extent/image.gz b/tests/f_convert_bmap_and_extent/image.gz
new file mode 100644
index 00000000..916b493c
Binary files /dev/null and b/tests/f_convert_bmap_and_extent/image.gz differ
diff --git a/tests/f_convert_bmap_and_extent/name b/tests/f_convert_bmap_and_extent/name
new file mode 100644
index 00000000..c9394c62
--- /dev/null
+++ b/tests/f_convert_bmap_and_extent/name
@@ -0,0 +1 @@
+convert blockmap and extents files to extents files
diff --git a/tests/f_convert_bmap_and_extent/script b/tests/f_convert_bmap_and_extent/script
new file mode 100644
index 00000000..203ab25c
--- /dev/null
+++ b/tests/f_convert_bmap_and_extent/script
@@ -0,0 +1,119 @@
+if [ "$DESCRIPTION"x != x ]; then
+	test_description="$DESCRIPTION"
+fi
+if [ "$IMAGE"x = x ]; then
+	IMAGE=$test_dir/image.gz
+fi
+
+if [ "$FSCK_OPT"x = x ]; then
+	FSCK_OPT=-yf
+fi
+
+if [ "$SECOND_FSCK_OPT"x = x ]; then
+	SECOND_FSCK_OPT=-yf
+fi
+
+if [ "$OUT1"x = x ]; then
+	OUT1=$test_name.1.log
+fi
+
+if [ "$OUT2"x = x ]; then
+	OUT2=$test_name.2.log
+fi
+
+if [ "$EXP1"x = x ]; then
+	if [ -f $test_dir/expect.1.gz ]; then
+		EXP1=$test_name.1.tmp
+		gunzip < $test_dir/expect.1.gz > $EXP1
+	else
+		EXP1=$test_dir/expect.1
+	fi
+fi
+
+if [ "$EXP2"x = x ]; then
+	if [ -f $test_dir/expect.2.gz ]; then
+		EXP2=$test_name.2.tmp
+		gunzip < $test_dir/expect.2.gz > $EXP2
+	else
+		EXP2=$test_dir/expect.2
+	fi
+fi
+
+if [ "$SKIP_GUNZIP" != "true" ] ; then
+	gunzip < $IMAGE > $TMPFILE
+fi
+
+cp /dev/null $OUT1
+
+eval $PREP_CMD
+
+echo 'stat /a' > $TMPFILE.cmd
+echo 'ex /zero' >> $TMPFILE.cmd
+$DEBUGFS -f $TMPFILE.cmd $TMPFILE > $OUT1.new 2>&1
+rm -rf $TMPFILE.cmd
+$TUNE2FS -O extent $TMPFILE >> $OUT1.new 2>&1
+$FSCK $FSCK_OPT -E bmap2extent -N test_filesys $TMPFILE >> $OUT1.new 2>&1
+status=$?
+echo Exit status is $status >> $OUT1.new
+sed -f $cmd_dir/filter.sed -e "s;$TMPFILE;test.img;" $OUT1.new >> $OUT1
+rm -f $OUT1.new
+
+$FSCK $SECOND_FSCK_OPT -N test_filesys $TMPFILE > $OUT2.new 2>&1 
+status=$?
+echo Exit status is $status >> $OUT2.new
+echo 'ex /a' > $TMPFILE.cmd
+echo 'ex /zero' >> $TMPFILE.cmd
+$DEBUGFS -f $TMPFILE.cmd $TMPFILE >> $OUT2.new 2>&1
+rm -rf $TMPFILE.cmd
+sed -f $cmd_dir/filter.sed -e "s;$TMPFILE;test.img;" $OUT2.new > $OUT2
+rm -f $OUT2.new
+
+eval $AFTER_CMD
+
+if [ "$SKIP_VERIFY" != "true" ] ; then
+	rm -f $test_name.ok $test_name.failed
+	cmp -s $OUT1 $EXP1
+	status1=$?
+	if [ "$ONE_PASS_ONLY" != "true" ]; then
+		cmp -s $OUT2 $EXP2
+		status2=$?
+	else
+		status2=0
+	fi
+	if [ "$PASS_ZERO" = "true" ]; then
+		cmp -s $test_name.0.log	$test_dir/expect.0
+		status3=$?
+	else
+		status3=0
+	fi
+
+	if [ -z "$test_description" ] ; then
+		description="$test_name"
+	else
+		description="$test_name: $test_description"
+	fi
+
+	if [ "$status1" -eq 0 -a "$status2" -eq 0 -a "$status3" -eq 0 ] ; then
+		echo "$description: ok"
+		touch $test_name.ok
+	else
+		echo "$description: failed"
+		rm -f $test_name.failed
+		if [ "$PASS_ZERO" = "true" ]; then
+			diff $DIFF_OPTS $test_dir/expect.0 \
+				$test_name.0.log >> $test_name.failed
+		fi
+		diff $DIFF_OPTS $EXP1 $OUT1 >> $test_name.failed
+		if [ "$ONE_PASS_ONLY" != "true" ]; then
+			diff $DIFF_OPTS $EXP2 $OUT2 >> $test_name.failed
+		fi
+	fi
+	rm -f tmp_expect
+fi
+
+if [ "$SKIP_CLEANUP" != "true" ] ; then
+	unset IMAGE FSCK_OPT SECOND_FSCK_OPT OUT1 OUT2 EXP1 EXP2 
+	unset SKIP_VERIFY SKIP_CLEANUP SKIP_GUNZIP ONE_PASS_ONLY PREP_CMD
+	unset DESCRIPTION SKIP_UNLINK AFTER_CMD PASS_ZERO
+fi
+
diff --git a/tests/f_extent_too_deep/expect.1 b/tests/f_extent_too_deep/expect.1
new file mode 100644
index 00000000..a595482f
--- /dev/null
+++ b/tests/f_extent_too_deep/expect.1
@@ -0,0 +1,23 @@
+debugfs: ex /a
+Level Entries       Logical      Physical Length Flags
+ 0/ 7   1/  1     0 -     0    12              1
+ 1/ 7   1/  1     0 -     0    13              1
+ 2/ 7   1/  1     0 -     0    14              1
+ 3/ 7   1/  1     0 -     0    15              1
+ 4/ 7   1/  1     0 -     0    16              1
+ 5/ 7   1/  1     0 -     0    17              1
+ 6/ 7   1/  1     0 -     0     9              1
+ 7/ 7   1/  1     0 -     0    10 -    10      1 
+Pass 1: Checking inodes, blocks, and sizes
+Inode 12 extent tree could be more shallow (7; could be <= 4)
+Fix? yes
+
+Pass 1E: Optimizing extent trees
+Pass 2: Checking directory structure
+Pass 3: Checking directory connectivity
+Pass 4: Checking reference counts
+Pass 5: Checking group summary information
+
+test_filesys: ***** FILE SYSTEM WAS MODIFIED *****
+test_filesys: 12/128 files (0.0% non-contiguous), 19/512 blocks
+Exit status is 1
diff --git a/tests/f_extent_too_deep/expect.2 b/tests/f_extent_too_deep/expect.2
new file mode 100644
index 00000000..a1d28b1b
--- /dev/null
+++ b/tests/f_extent_too_deep/expect.2
@@ -0,0 +1,10 @@
+Pass 1: Checking inodes, blocks, and sizes
+Pass 2: Checking directory structure
+Pass 3: Checking directory connectivity
+Pass 4: Checking reference counts
+Pass 5: Checking group summary information
+test_filesys: 12/128 files (0.0% non-contiguous), 19/512 blocks
+Exit status is 0
+debugfs: ex /a
+Level Entries       Logical      Physical Length Flags
+ 0/ 0   1/  1     0 -     0    10 -    10      1 
diff --git a/tests/f_extent_too_deep/image.gz b/tests/f_extent_too_deep/image.gz
new file mode 100644
index 00000000..0f5adff5
Binary files /dev/null and b/tests/f_extent_too_deep/image.gz differ
diff --git a/tests/f_extent_too_deep/name b/tests/f_extent_too_deep/name
new file mode 100644
index 00000000..7e8654ac
--- /dev/null
+++ b/tests/f_extent_too_deep/name
@@ -0,0 +1 @@
+extent tree is deeper than it needs to be
diff --git a/tests/f_extent_too_deep/script b/tests/f_extent_too_deep/script
new file mode 100644
index 00000000..ee184389
--- /dev/null
+++ b/tests/f_extent_too_deep/script
@@ -0,0 +1,118 @@
+if [ "$DESCRIPTION"x != x ]; then
+	test_description="$DESCRIPTION"
+fi
+if [ "$IMAGE"x = x ]; then
+	IMAGE=$test_dir/image.gz
+fi
+
+if [ "$FSCK_OPT"x = x ]; then
+	FSCK_OPT=-yf
+fi
+
+if [ "$SECOND_FSCK_OPT"x = x ]; then
+	SECOND_FSCK_OPT=-yf
+fi
+
+if [ "$OUT1"x = x ]; then
+	OUT1=$test_name.1.log
+fi
+
+if [ "$OUT2"x = x ]; then
+	OUT2=$test_name.2.log
+fi
+
+if [ "$EXP1"x = x ]; then
+	if [ -f $test_dir/expect.1.gz ]; then
+		EXP1=$test_name.1.tmp
+		gunzip < $test_dir/expect.1.gz > $EXP1
+	else
+		EXP1=$test_dir/expect.1
+	fi
+fi
+
+if [ "$EXP2"x = x ]; then
+	if [ -f $test_dir/expect.2.gz ]; then
+		EXP2=$test_name.2.tmp
+		gunzip < $test_dir/expect.2.gz > $EXP2
+	else
+		EXP2=$test_dir/expect.2
+	fi
+fi
+
+if [ "$SKIP_GUNZIP" != "true" ] ; then
+	gunzip < $IMAGE > $TMPFILE
+fi
+
+cp /dev/null $OUT1
+
+eval $PREP_CMD
+
+echo 'ex /a' > $TMPFILE.cmd
+$DEBUGFS -f $TMPFILE.cmd $TMPFILE > $OUT1.new 2>&1
+rm -rf $TMPFILE.cmd
+$FSCK $FSCK_OPT  -N test_filesys $TMPFILE >> $OUT1.new 2>&1
+status=$?
+echo Exit status is $status >> $OUT1.new
+sed -f $cmd_dir/filter.sed -e "s;$TMPFILE;test.img;" $OUT1.new >> $OUT1
+rm -f $OUT1.new
+
+if [ "$ONE_PASS_ONLY" != "true" ]; then
+	$FSCK $SECOND_FSCK_OPT -N test_filesys $TMPFILE > $OUT2.new 2>&1 
+	status=$?
+	echo Exit status is $status >> $OUT2.new
+	echo 'ex /a' > $TMPFILE.cmd
+	$DEBUGFS -f $TMPFILE.cmd $TMPFILE >> $OUT2.new 2>&1
+	rm -rf $TMPFILE.cmd
+	sed -f $cmd_dir/filter.sed -e "s;$TMPFILE;test.img;" $OUT2.new > $OUT2
+	rm -f $OUT2.new
+fi
+
+eval $AFTER_CMD
+
+if [ "$SKIP_VERIFY" != "true" ] ; then
+	rm -f $test_name.ok $test_name.failed
+	cmp -s $OUT1 $EXP1
+	status1=$?
+	if [ "$ONE_PASS_ONLY" != "true" ]; then
+		cmp -s $OUT2 $EXP2
+		status2=$?
+	else
+		status2=0
+	fi
+	if [ "$PASS_ZERO" = "true" ]; then
+		cmp -s $test_name.0.log	$test_dir/expect.0
+		status3=$?
+	else
+		status3=0
+	fi
+
+	if [ -z "$test_description" ] ; then
+		description="$test_name"
+	else
+		description="$test_name: $test_description"
+	fi
+
+	if [ "$status1" -eq 0 -a "$status2" -eq 0 -a "$status3" -eq 0 ] ; then
+		echo "$description: ok"
+		touch $test_name.ok
+	else
+		echo "$description: failed"
+		rm -f $test_name.failed
+		if [ "$PASS_ZERO" = "true" ]; then
+			diff $DIFF_OPTS $test_dir/expect.0 \
+				$test_name.0.log >> $test_name.failed
+		fi
+		diff $DIFF_OPTS $EXP1 $OUT1 >> $test_name.failed
+		if [ "$ONE_PASS_ONLY" != "true" ]; then
+			diff $DIFF_OPTS $EXP2 $OUT2 >> $test_name.failed
+		fi
+	fi
+	rm -f tmp_expect
+fi
+
+if [ "$SKIP_CLEANUP" != "true" ] ; then
+	unset IMAGE FSCK_OPT SECOND_FSCK_OPT OUT1 OUT2 EXP1 EXP2 
+	unset SKIP_VERIFY SKIP_CLEANUP SKIP_GUNZIP ONE_PASS_ONLY PREP_CMD
+	unset DESCRIPTION SKIP_UNLINK AFTER_CMD PASS_ZERO
+fi
+
diff --git a/tests/f_opt_extent/expect b/tests/f_opt_extent/expect
new file mode 100644
index 00000000..6d4863b5
--- /dev/null
+++ b/tests/f_opt_extent/expect
@@ -0,0 +1,55 @@
+tune2fs metadata_csum test
+Creating filesystem with 524288 1k blocks and 65536 inodes
+Superblock backups stored on blocks: 
+	8193, 24577, 40961, 57345, 73729, 204801, 221185, 401409
+
+Allocating group tables:      done                            
+Writing inode tables:      done                            
+Creating journal (16384 blocks): done
+Creating 477 huge file(s) with 1024 blocks each: done
+Writing superblocks and filesystem accounting information:      done
+
+Pass 1: Checking inodes, blocks, and sizes
+Pass 2: Checking directory structure
+Pass 3: Checking directory connectivity
+Pass 4: Checking reference counts
+Pass 5: Checking group summary information
+
+Exit status is 0
+Pass 1: Checking inodes, blocks, and sizes
+Pass 2: Checking directory structure
+Pass 3: Checking directory connectivity
+Pass 3A: Optimizing directories
+Pass 4: Checking reference counts
+Pass 5: Checking group summary information
+
+
+
+Change in FS metadata:
+@@ -10,7 +10,7 @@
+ Inode count:              65536
+ Block count:              524288
+ Reserved block count:     26214
+-Free blocks:              570
++Free blocks:              567
+ Free inodes:              65047
+ First block:              1
+ Block size:               1024
+@@ -47,8 +47,8 @@
+   Block bitmap at 262 (+261)
+   Inode bitmap at 278 (+277)
+   Inode table at 294-549 (+293)
+-  21 free blocks, 535 free inodes, 3 directories, 535 unused inodes
+-  Free blocks: 4414-4434
++  18 free blocks, 535 free inodes, 3 directories, 535 unused inodes
++  Free blocks: 4417-4434
+   Free inodes: 490-1024
+ Group 1: (Blocks 8193-16384) [INODE_UNINIT]
+   Backup superblock at 8193, Group descriptors at 8194-8197
+Pass 1: Checking inodes, blocks, and sizes
+Pass 2: Checking directory structure
+Pass 3: Checking directory connectivity
+Pass 4: Checking reference counts
+Pass 5: Checking group summary information
+
+Exit status is 0
diff --git a/tests/f_opt_extent/name b/tests/f_opt_extent/name
new file mode 100644
index 00000000..7d4389cc
--- /dev/null
+++ b/tests/f_opt_extent/name
@@ -0,0 +1 @@
+optimize extent tree
diff --git a/tests/f_opt_extent/script b/tests/f_opt_extent/script
new file mode 100644
index 00000000..2da5e919
--- /dev/null
+++ b/tests/f_opt_extent/script
@@ -0,0 +1,64 @@
+FSCK_OPT=-fn
+OUT=$test_name.log
+EXP=$test_dir/expect
+CONF=$TMPFILE.conf
+
+cat > $CONF << ENDL
+[fs_types]
+	ext4h = {
+		features = has_journal,extent,huge_file,flex_bg,uninit_bg,dir_nlink,extra_isize,sparse_super,filetype,dir_index,ext_attr,resize_inode,64bit,metadata_csum
+		blocksize = 1024
+		inode_size = 256
+		make_hugefiles = true
+		hugefiles_dir = /xyz
+		hugefiles_slack = 0
+		hugefiles_name = aaaaa
+		hugefiles_digits = 4
+		hugefiles_size = 1M
+		zero_hugefiles = false
+	}
+ENDL
+
+echo "tune2fs metadata_csum test" > $OUT
+
+MKE2FS_CONFIG=$CONF $MKE2FS -F -T ext4h $TMPFILE 524288 >> $OUT 2>&1
+rm -rf $CONF
+
+# dump and check
+$DUMPE2FS $TMPFILE 2> /dev/null | grep '^Group 0:' -B99 -A20 | sed -f $cmd_dir/filter.sed > $OUT.before
+$FSCK $FSCK_OPT -N test_filesys $TMPFILE >> $OUT 2>&1
+status=$?
+echo Exit status is $status >> $OUT
+
+# check
+$FSCK -fyD -N test_filesys $TMPFILE >> $OUT 2>&1
+
+# dump and check
+$DUMPE2FS $TMPFILE 2> /dev/null | grep '^Group 0:' -B99 -A20 | sed -f $cmd_dir/filter.sed > $OUT.after
+echo "Change in FS metadata:" >> $OUT
+diff -u $OUT.before $OUT.after | tail -n +3 >> $OUT
+$FSCK $FSCK_OPT -N test_filesys $TMPFILE >> $OUT 2>&1
+status=$?
+echo Exit status is $status >> $OUT
+
+rm $TMPFILE $OUT.before $OUT.after
+
+#
+# Do the verification
+#
+
+sed -f $cmd_dir/filter.sed -e "s;$TMPFILE;test.img;" -e 's/test_filesys:.*//g' < $OUT > $OUT.new
+mv $OUT.new $OUT
+
+cmp -s $OUT $EXP
+status=$?
+
+if [ "$status" = 0 ] ; then
+	echo "$test_name: $test_description: ok"
+	touch $test_name.ok
+else
+	echo "$test_name: $test_description: failed"
+	diff $DIFF_OPTS $EXP $OUT > $test_name.failed
+fi
+
+unset IMAGE FSCK_OPT OUT EXP CONF
diff --git a/tests/f_opt_extent_ext3/expect b/tests/f_opt_extent_ext3/expect
new file mode 100644
index 00000000..17614715
--- /dev/null
+++ b/tests/f_opt_extent_ext3/expect
@@ -0,0 +1,44 @@
+rebuild extent metadata_csum test
+Creating filesystem with 524288 1k blocks and 65536 inodes
+Superblock backups stored on blocks: 
+	8193, 24577, 40961, 57345, 73729, 204801, 221185, 401409
+
+Allocating group tables:      done                            
+Writing inode tables:      done                            
+Creating journal (16384 blocks): done
+mke2fs: Operation not supported for inodes containing extents while creating huge files
+Writing superblocks and filesystem accounting information:      done
+
+Pass 1: Checking inodes, blocks, and sizes
+Pass 2: Checking directory structure
+Pass 3: Checking directory connectivity
+Pass 4: Checking reference counts
+Pass 5: Checking group summary information
+
+Exit status is 0
+Pass 1: Checking inodes, blocks, and sizes
+Pass 2: Checking directory structure
+Pass 3: Checking directory connectivity
+Pass 3A: Optimizing directories
+Pass 4: Checking reference counts
+Pass 5: Checking group summary information
+
+
+
+Change in FS metadata:
+@@ -2,7 +2,7 @@
+ Last mounted on:          <not available>
+ Filesystem magic number:  0xEF53
+ Filesystem revision #:    1 (dynamic)
+-Filesystem features:      has_journal ext_attr resize_inode dir_index filetype sparse_super large_file huge_file dir_nlink
++Filesystem features:      has_journal ext_attr resize_inode dir_index filetype extent sparse_super large_file huge_file dir_nlink
+ Default mount options:    user_xattr acl
+ Filesystem state:         clean
+ Errors behavior:          Continue
+Pass 1: Checking inodes, blocks, and sizes
+Pass 2: Checking directory structure
+Pass 3: Checking directory connectivity
+Pass 4: Checking reference counts
+Pass 5: Checking group summary information
+
+Exit status is 0
diff --git a/tests/f_opt_extent_ext3/name b/tests/f_opt_extent_ext3/name
new file mode 100644
index 00000000..b3696851
--- /dev/null
+++ b/tests/f_opt_extent_ext3/name
@@ -0,0 +1 @@
+convert ext3 to extent tree
diff --git a/tests/f_opt_extent_ext3/script b/tests/f_opt_extent_ext3/script
new file mode 100644
index 00000000..931eae77
--- /dev/null
+++ b/tests/f_opt_extent_ext3/script
@@ -0,0 +1,65 @@
+FSCK_OPT=-fn
+OUT=$test_name.log
+EXP=$test_dir/expect
+CONF=$TMPFILE.conf
+
+cat > $CONF << ENDL
+[fs_types]
+	ext4h = {
+		features = has_journal,^extent,huge_file,^flex_bg,^uninit_bg,dir_nlink,^extra_isize,sparse_super,filetype,dir_index,ext_attr,resize_inode,^64bit,^metadata_csum
+		blocksize = 1024
+		inode_size = 256
+		make_hugefiles = true
+		hugefiles_dir = /
+		num_hugefiles = 100
+		hugefiles_slack = 0
+		hugefiles_name = aaaaa
+		hugefiles_digits = 4
+		hugefiles_size = 1M
+		zero_hugefiles = false
+	}
+ENDL
+
+echo "rebuild extent metadata_csum test" > $OUT
+
+MKE2FS_CONFIG=$CONF $MKE2FS -F -T ext4h $TMPFILE 524288 >> $OUT 2>&1
+rm -rf $CONF
+
+# dump and check
+$DUMPE2FS $TMPFILE 2> /dev/null | grep '^Group 0:' -B99 -A20 | sed -f $cmd_dir/filter.sed > $OUT.before
+$FSCK $FSCK_OPT -N test_filesys $TMPFILE >> $OUT 2>&1
+status=$?
+echo Exit status is $status >> $OUT
+
+# check
+$FSCK -fyD -N test_filesys -E bmap2extent $TMPFILE >> $OUT 2>&1
+
+# dump and check
+$DUMPE2FS $TMPFILE 2> /dev/null | grep '^Group 0:' -B99 -A20 | sed -f $cmd_dir/filter.sed > $OUT.after
+echo "Change in FS metadata:" >> $OUT
+diff -u $OUT.before $OUT.after | tail -n +3 >> $OUT
+$FSCK $FSCK_OPT -N test_filesys $TMPFILE >> $OUT 2>&1
+status=$?
+echo Exit status is $status >> $OUT
+
+rm $TMPFILE $OUT.before $OUT.after
+
+#
+# Do the verification
+#
+
+sed -f $cmd_dir/filter.sed -e "s;$TMPFILE;test.img;" -e 's/test_filesys:.*//g' < $OUT > $OUT.new
+mv $OUT.new $OUT
+
+cmp -s $OUT $EXP
+status=$?
+
+if [ "$status" = 0 ] ; then
+	echo "$test_name: $test_description: ok"
+	touch $test_name.ok
+else
+	echo "$test_name: $test_description: failed"
+	diff $DIFF_OPTS $EXP $OUT > $test_name.failed
+fi
+
+unset IMAGE FSCK_OPT OUT EXP CONF