dive-zfs/filetree_test.go
2018-05-31 18:10:38 -04:00

302 lines
6.7 KiB
Go

package main
import (
"testing"
"fmt"
)
func TestPrintTree(t *testing.T) {
tree := NewTree()
tree.Root().AddChild("first node!", nil)
two := tree.Root().AddChild("second node!", nil)
tree.Root().AddChild("third node!", nil)
two.AddChild("forth, one level down...", nil)
expected := `.
├── first node!
├── second node!
│ └── forth, one level down...
└── third node!
`
actual := tree.String()
if expected != actual {
t.Errorf("Expected tree string:\n--->%s<---\nGot:\n--->%s<---", expected, actual)
}
}
func TestAddPath(t *testing.T) {
tree := NewTree()
tree.AddPath("/etc/nginx/nginx.conf", nil)
tree.AddPath("/etc/nginx/public", nil)
tree.AddPath("/var/run/systemd", nil)
tree.AddPath("/var/run/bashful", nil)
tree.AddPath("/tmp", nil)
tree.AddPath("/tmp/nonsense", nil)
expected := `.
├── etc
│ └── nginx
│ ├── nginx.conf
│ └── public
├── tmp
│ └── nonsense
└── var
└── run
├── bashful
└── systemd
`
actual := tree.String()
if expected != actual {
t.Errorf("Expected tree string:\n--->%s<---\nGot:\n--->%s<---", expected, actual)
}
}
func TestRemovePath(t *testing.T) {
tree := NewTree()
tree.AddPath("/etc/nginx/nginx.conf", nil)
tree.AddPath("/etc/nginx/public", nil)
tree.AddPath("/var/run/systemd", nil)
tree.AddPath("/var/run/bashful", nil)
tree.AddPath("/tmp", nil)
tree.AddPath("/tmp/nonsense", nil)
tree.RemovePath("/var/run/bashful")
tree.RemovePath("/tmp")
expected := `.
├── etc
│ └── nginx
│ ├── nginx.conf
│ └── public
└── var
└── run
└── systemd
`
actual := tree.String()
if expected != actual {
t.Errorf("Expected tree string:\n--->%s<---\nGot:\n--->%s<---", expected, actual)
}
}
func TestStack(t *testing.T) {
payloadKey := "/var/run/systemd"
payloadValue := FileChangeInfo{
path: "yup",
}
tree1 := NewTree()
tree1.AddPath("/etc/nginx/public", nil)
tree1.AddPath(payloadKey, nil)
tree1.AddPath("/var/run/bashful", nil)
tree1.AddPath("/tmp", nil)
tree1.AddPath("/tmp/nonsense", nil)
tree2 := NewTree()
// add new files
tree2.AddPath("/etc/nginx/nginx.conf", nil)
// modify current files
tree2.AddPath(payloadKey, &payloadValue)
// whiteout the following files
tree2.AddPath("/var/run/.wh.bashful", nil)
tree2.AddPath("/.wh.tmp", nil)
err := tree1.Stack(tree2)
if err != nil {
t.Errorf("Could not stack trees: %v", err)
}
expected := `.
├── etc
│ └── nginx
│ ├── nginx.conf
│ └── public
└── var
└── run
└── systemd
`
node, err := tree1.GetNode(payloadKey)
if err != nil {
t.Errorf("Expected '%s' to still exist, but it doesn't", payloadKey)
}
if *node.data != payloadValue {
t.Errorf("Expected '%s' value to be %+v but got %+v", payloadKey, payloadValue, node.data)
}
actual := tree1.String()
if expected != actual {
t.Errorf("Expected tree string:\n--->%s<---\nGot:\n--->%s<---", expected, actual)
}
}
func TestCopy(t *testing.T) {
tree := NewTree()
tree.AddPath("/etc/nginx/nginx.conf", nil)
tree.AddPath("/etc/nginx/public", nil)
tree.AddPath("/var/run/systemd", nil)
tree.AddPath("/var/run/bashful", nil)
tree.AddPath("/tmp", nil)
tree.AddPath("/tmp/nonsense", nil)
tree.RemovePath("/var/run/bashful")
tree.RemovePath("/tmp")
expected := `.
├── etc
│ └── nginx
│ ├── nginx.conf
│ └── public
└── var
└── run
└── systemd
`
newTree := tree.Copy()
actual := newTree.String()
if expected != actual {
t.Errorf("Expected tree string:\n--->%s<---\nGot:\n--->%s<---", expected, actual)
}
}
func TestCompareWithNoChanges(t *testing.T) {
lowerTree := NewTree()
upperTree := NewTree()
paths := [...]string{"/etc", "/etc/sudoers", "/etc/hosts", "/usr/bin", "/usr/bin/bash", "/usr"}
for _, value := range paths {
fakeData := FileChangeInfo{
path: value,
typeflag: 1,
md5sum: [16]byte{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
diffType: Unchanged,
}
lowerTree.AddPath(value, &fakeData)
upperTree.AddPath(value, &fakeData)
}
lowerTree.compare(upperTree)
asserter := func(n *FileNode) error {
if n.Path() == "/" {
return nil
}
if n.data == nil {
t.Errorf("Expected *FileChangeInfo but got nil")
return fmt.Errorf("expected *FileChangeInfo but got nil")
}
if (n.data.diffType) != Unchanged {
t.Errorf("Expecting node at %s to have DiffType unchanged, but had %v", n.Path(), n.data.diffType)
}
return nil
}
err := lowerTree.Visit(asserter)
if err != nil {
t.Error(err)
}
}
func TestCompareWithAdds(t *testing.T) {
lowerTree := NewTree()
upperTree := NewTree()
lowerPaths := [...]string{"/etc", "/etc/sudoers", "/usr", "/etc/hosts", "/usr/bin"}
upperPaths := [...]string{"/etc", "/etc/sudoers", "/usr", "/etc/hosts", "/usr/bin", "/usr/bin/bash"}
for _, value := range lowerPaths {
fakeData := FileChangeInfo{
path: value,
typeflag: 1,
md5sum: [16]byte{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
diffType: Unchanged,
}
lowerTree.AddPath(value, &fakeData)
}
for _, value := range upperPaths {
fakeData := FileChangeInfo{
path: value,
typeflag: 1,
md5sum: [16]byte{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
diffType: Unchanged,
}
upperTree.AddPath(value, &fakeData)
}
lowerTree.compare(upperTree)
asserter := func(n *FileNode) error {
p := n.Path()
if p == "/" {
return nil
}
// Adding a file changes the folders it's in
if p == "/usr/bin/bash" {
return AssertDiffType(n, Added, t)
}
if p == "/usr/bin" {
return AssertDiffType(n, Changed, t)
}
if p == "/usr" {
return AssertDiffType(n, Changed, t)
}
return AssertDiffType(n, Unchanged, t)
}
err := lowerTree.Visit(asserter)
if err != nil {
t.Error(err)
}
}
func TestCompareWithChanges(t *testing.T) {
lowerTree := NewTree()
upperTree := NewTree()
lowerPaths := [...]string{"/etc", "/usr", "/etc/hosts", "/etc/sudoers", "/usr/bin"}
upperPaths := [...]string{"/etc", "/usr", "/etc/hosts", "/etc/sudoers", "/usr/bin"}
for _, value := range lowerPaths {
fakeData := FileChangeInfo{
path: value,
typeflag: 1,
md5sum: [16]byte{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
diffType: Unchanged,
}
lowerTree.AddPath(value, &fakeData)
}
for _, value := range upperPaths {
fakeData := FileChangeInfo{
path: value,
typeflag: 1,
md5sum: [16]byte{1, 1, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0},
diffType: Unchanged,
}
upperTree.AddPath(value, &fakeData)
}
lowerTree.compare(upperTree)
asserter := func(n *FileNode) error {
p := n.Path()
if p == "/" {
return nil
}
return AssertDiffType(n, Changed, t)
}
err := lowerTree.Visit(asserter)
if err != nil {
t.Error(err)
}
}