1 files changed, 0 insertions, 185 deletions
diff --git a/pkg/sentry/fs/ext/extent_test.go b/pkg/sentry/fs/ext/extent_test.go
deleted file mode 100644
index b3f342c8e..000000000
--- a/pkg/sentry/fs/ext/extent_test.go
+++ /dev/null
@@ -1,185 +0,0 @@
-// Copyright 2019 The gVisor Authors.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package ext
-
-import (
-	"bytes"
-	"testing"
-
-	"github.com/google/go-cmp/cmp"
-	"github.com/google/go-cmp/cmp/cmpopts"
-	"gvisor.dev/gvisor/pkg/binary"
-	"gvisor.dev/gvisor/pkg/sentry/fs/ext/disklayout"
-)
-
-// TestExtentTree tests the extent tree building logic.
-//
-// Test tree:
-//            0.{Head}[Idx][Idx]
-//                     /     \
-//                    /       \
-//      1.{Head}[Ext][Ext]  2.{Head}[Idx]
-//               /    |               \
-//           [Phy]  [Phy, Phy]    3.{Head}[Ext]
-//                                          |
-//                                    [Phy, Phy, Phy]
-//
-// Legend:
-//   - Head = ExtentHeader
-//   - Idx  = ExtentIdx
-//   - Ext  = Extent
-//   - Phy  = Physical Block
-//
-// Please note that ext4 might not construct extent trees looking like this.
-// This is purely for testing the tree traversal logic.
-func TestExtentTree(t *testing.T) {
-	blkSize := uint64(64) // No block has more than 1 header + 4 entries.
-	mockDisk := make([]byte, blkSize*10)
-	mockInode := &inode{diskInode: &disklayout.InodeNew{}}
-
-	node3 := &disklayout.ExtentNode{
-		Header: disklayout.ExtentHeader{
-			Magic:      disklayout.ExtentMagic,
-			NumEntries: 1,
-			MaxEntries: 4,
-			Height:     0,
-		},
-		Entries: []disklayout.ExtentEntryPair{
-			{
-				Entry: &disklayout.Extent{
-					FirstFileBlock: 3,
-					Length:         3,
-					StartBlockLo:   6,
-				},
-				Node: nil,
-			},
-		},
-	}
-
-	node2 := &disklayout.ExtentNode{
-		Header: disklayout.ExtentHeader{
-			Magic:      disklayout.ExtentMagic,
-			NumEntries: 1,
-			MaxEntries: 4,
-			Height:     1,
-		},
-		Entries: []disklayout.ExtentEntryPair{
-			{
-				Entry: &disklayout.ExtentIdx{
-					FirstFileBlock: 3,
-					ChildBlockLo:   2,
-				},
-				Node: node3,
-			},
-		},
-	}
-
-	node1 := &disklayout.ExtentNode{
-		Header: disklayout.ExtentHeader{
-			Magic:      disklayout.ExtentMagic,
-			NumEntries: 2,
-			MaxEntries: 4,
-			Height:     0,
-		},
-		Entries: []disklayout.ExtentEntryPair{
-			{
-				Entry: &disklayout.Extent{
-					FirstFileBlock: 0,
-					Length:         1,
-					StartBlockLo:   3,
-				},
-				Node: nil,
-			},
-			{
-				Entry: &disklayout.Extent{
-					FirstFileBlock: 1,
-					Length:         2,
-					StartBlockLo:   4,
-				},
-				Node: nil,
-			},
-		},
-	}
-
-	node0 := &disklayout.ExtentNode{
-		Header: disklayout.ExtentHeader{
-			Magic:      disklayout.ExtentMagic,
-			NumEntries: 2,
-			MaxEntries: 4,
-			Height:     2,
-		},
-		Entries: []disklayout.ExtentEntryPair{
-			{
-				Entry: &disklayout.ExtentIdx{
-					FirstFileBlock: 0,
-					ChildBlockLo:   0,
-				},
-				Node: node1,
-			},
-			{
-				Entry: &disklayout.ExtentIdx{
-					FirstFileBlock: 3,
-					ChildBlockLo:   1,
-				},
-				Node: node2,
-			},
-		},
-	}
-
-	writeTree(mockInode, mockDisk, node0, blkSize)
-
-	r := bytes.NewReader(mockDisk)
-	if err := mockInode.buildExtTree(r, blkSize); err != nil {
-		t.Fatalf("inode.buildExtTree failed: %v", err)
-	}
-
-	opt := cmpopts.IgnoreUnexported(disklayout.ExtentIdx{}, disklayout.ExtentHeader{})
-	if diff := cmp.Diff(mockInode.root, node0, opt); diff != "" {
-		t.Errorf("extent tree mismatch (-want +got):\n%s", diff)
-	}
-}
-
-// writeTree writes the tree represented by `root` to the inode and disk passed.
-func writeTree(in *inode, disk []byte, root *disklayout.ExtentNode, blkSize uint64) {
-	rootData := binary.Marshal(nil, binary.LittleEndian, root.Header)
-	for _, ep := range root.Entries {
-		rootData = binary.Marshal(rootData, binary.LittleEndian, ep.Entry)
-	}
-
-	copy(in.diskInode.Data(), rootData)
-
-	if root.Header.Height > 0 {
-		for _, ep := range root.Entries {
-			writeTreeToDisk(disk, ep, blkSize)
-		}
-	}
-}
-
-// writeTreeToDisk is the recursive step for writeTree which writes the tree
-// on the disk only.
-func writeTreeToDisk(disk []byte, curNode disklayout.ExtentEntryPair, blkSize uint64) {
-	nodeData := binary.Marshal(nil, binary.LittleEndian, curNode.Node.Header)
-	for _, ep := range curNode.Node.Entries {
-		nodeData = binary.Marshal(nodeData, binary.LittleEndian, ep.Entry)
-	}
-
-	copy(disk[curNode.Entry.PhysicalBlock()*blkSize:], nodeData)
-
-	if curNode.Node.Header.Height > 0 {
-		for _, ep := range curNode.Node.Entries {
-			writeTreeToDisk(disk, ep, blkSize)
-		}
-	}
-}