package utils
import (
"bytes"
"io"
"io/ioutil"
"os"
"testing"
)
func TestBufReader(t *testing.T) {
reader, writer := io.Pipe()
bufreader := NewBufReader(reader)
// Write everything down to a Pipe
// Usually, a pipe should block but because of the buffered reader,
// the writes will go through
done := make(chan bool)
go func() {
writer.Write([]byte("hello world"))
writer.Close()
done <- true
}()
// Drain the reader *after* everything has been written, just to verify
// it is indeed buffering
<-done
output, err := ioutil.ReadAll(bufreader)
if err != nil {
t.Fatal(err)
}
if !bytes.Equal(output, []byte("hello world")) {
t.Error(string(output))
}
}
func assertKernelVersion(t *testing.T, a, b *KernelVersionInfo, result int) {
if r := CompareKernelVersion(a, b); r != result {
t.Fatalf("Unexpected kernel version comparison result. Found %d, expected %d", r, result)
}
}
func TestCompareKernelVersion(t *testing.T) {
assertKernelVersion(t,
&KernelVersionInfo{Kernel: 3, Major: 8, Minor: 0},
&KernelVersionInfo{Kernel: 3, Major: 8, Minor: 0},
0)
assertKernelVersion(t,
&KernelVersionInfo{Kernel: 2, Major: 6, Minor: 0},
&KernelVersionInfo{Kernel: 3, Major: 8, Minor: 0},
-1)
assertKernelVersion(t,
&KernelVersionInfo{Kernel: 3, Major: 8, Minor: 0},
&KernelVersionInfo{Kernel: 2, Major: 6, Minor: 0},
1)
assertKernelVersion(t,
&KernelVersionInfo{Kernel: 3, Major: 8, Minor: 0},
&KernelVersionInfo{Kernel: 3, Major: 8, Minor: 0},
0)
assertKernelVersion(t,
&KernelVersionInfo{Kernel: 3, Major: 8, Minor: 5},
&KernelVersionInfo{Kernel: 3, Major: 8, Minor: 0},
1)
assertKernelVersion(t,
&KernelVersionInfo{Kernel: 3, Major: 0, Minor: 20},
&KernelVersionInfo{Kernel: 3, Major: 8, Minor: 0},
-1)
}
func TestParseHost(t *testing.T) {
var (
defaultHttpHost = "127.0.0.1"
defaultUnix = "/var/run/docker.sock"
)
if addr, err := ParseHost(defaultHttpHost, defaultUnix, "0.0.0.0"); err == nil {
t.Errorf("tcp 0.0.0.0 address expected error return, but err == nil, got %s", addr)
}
if addr, err := ParseHost(defaultHttpHost, defaultUnix, "tcp://"); err == nil {
t.Errorf("default tcp:// address expected error return, but err == nil, got %s", addr)
}
if addr, err := ParseHost(defaultHttpHost, defaultUnix, "0.0.0.1:5555"); err != nil || addr != "tcp://0.0.0.1:5555" {
t.Errorf("0.0.0.1:5555 -> expected tcp://0.0.0.1:5555, got %s", addr)
}
if addr, err := ParseHost(defaultHttpHost, defaultUnix, ":6666"); err != nil || addr != "tcp://127.0.0.1:6666" {
t.Errorf(":6666 -> expected tcp://127.0.0.1:6666, got %s", addr)
}
if addr, err := ParseHost(defaultHttpHost, defaultUnix, "tcp://:7777"); err != nil || addr != "tcp://127.0.0.1:7777" {
t.Errorf("tcp://:7777 -> expected tcp://127.0.0.1:7777, got %s", addr)
}
if addr, err := ParseHost(defaultHttpHost, defaultUnix, ""); err != nil || addr != "unix:///var/run/docker.sock" {
t.Errorf("empty argument -> expected unix:///var/run/docker.sock, got %s", addr)
}
if addr, err := ParseHost(defaultHttpHost, defaultUnix, "unix:///var/run/docker.sock"); err != nil || addr != "unix:///var/run/docker.sock" {
t.Errorf("unix:///var/run/docker.sock -> expected unix:///var/run/docker.sock, got %s", addr)
}
if addr, err := ParseHost(defaultHttpHost, defaultUnix, "unix://"); err != nil || addr != "unix:///var/run/docker.sock" {
t.Errorf("unix:///var/run/docker.sock -> expected unix:///var/run/docker.sock, got %s", addr)
}
if addr, err := ParseHost(defaultHttpHost, defaultUnix, "udp://127.0.0.1"); err == nil {
t.Errorf("udp protocol address expected error return, but err == nil. Got %s", addr)
}
if addr, err := ParseHost(defaultHttpHost, defaultUnix, "udp://127.0.0.1:2375"); err == nil {
t.Errorf("udp protocol address expected error return, but err == nil. Got %s", addr)
}
}
func TestParseRepositoryTag(t *testing.T) {
if repo, tag := ParseRepositoryTag("root"); repo != "root" || tag != "" {
t.Errorf("Expected repo: '%s' and tag: '%s', got '%s' and '%s'", "root", "", repo, tag)
}
if repo, tag := ParseRepositoryTag("root:tag"); repo != "root" || tag != "tag" {
t.Errorf("Expected repo: '%s' and tag: '%s', got '%s' and '%s'", "root", "tag", repo, tag)
}
if repo, tag := ParseRepositoryTag("user/repo"); repo != "user/repo" || tag != "" {
t.Errorf("Expected repo: '%s' and tag: '%s', got '%s' and '%s'", "user/repo", "", repo, tag)
}
if repo, tag := ParseRepositoryTag("user/repo:tag"); repo != "user/repo" || tag != "tag" {
t.Errorf("Expected repo: '%s' and tag: '%s', got '%s' and '%s'", "user/repo", "tag", repo, tag)
}
if repo, tag := ParseRepositoryTag("url:5000/repo"); repo != "url:5000/repo" || tag != "" {
t.Errorf("Expected repo: '%s' and tag: '%s', got '%s' and '%s'", "url:5000/repo", "", repo, tag)
}
if repo, tag := ParseRepositoryTag("url:5000/repo:tag"); repo != "url:5000/repo" || tag != "tag" {
t.Errorf("Expected repo: '%s' and tag: '%s', got '%s' and '%s'", "url:5000/repo", "tag", repo, tag)
}
}
func TestCheckLocalDns(t *testing.T) {
for resolv, result := range map[string]bool{`# Dynamic
nameserver 10.0.2.3
search docker.com`: false,
`# Dynamic
#nameserver 127.0.0.1
nameserver 10.0.2.3
search docker.com`: false,
`# Dynamic
nameserver 10.0.2.3 #not used 127.0.1.1
search docker.com`: false,
`# Dynamic
#nameserver 10.0.2.3
#search docker.com`: true,
`# Dynamic
nameserver 127.0.0.1
search docker.com`: true,
`# Dynamic
nameserver 127.0.1.1
search docker.com`: true,
`# Dynamic
`: true,
``: true,
} {
if CheckLocalDns([]byte(resolv)) != result {
t.Fatalf("Wrong local dns detection: {%s} should be %v", resolv, result)
}
}
}
func assertParseRelease(t *testing.T, release string, b *KernelVersionInfo, result int) {
var (
a *KernelVersionInfo
)
a, _ = ParseRelease(release)
if r := CompareKernelVersion(a, b); r != result {
t.Fatalf("Unexpected kernel version comparison result. Found %d, expected %d", r, result)
}
if a.Flavor != b.Flavor {
t.Fatalf("Unexpected parsed kernel flavor. Found %s, expected %s", a.Flavor, b.Flavor)
}
}
func TestParseRelease(t *testing.T) {
assertParseRelease(t, "3.8.0", &KernelVersionInfo{Kernel: 3, Major: 8, Minor: 0}, 0)
assertParseRelease(t, "3.4.54.longterm-1", &KernelVersionInfo{Kernel: 3, Major: 4, Minor: 54, Flavor: ".longterm-1"}, 0)
assertParseRelease(t, "3.4.54.longterm-1", &KernelVersionInfo{Kernel: 3, Major: 4, Minor: 54, Flavor: ".longterm-1"}, 0)
assertParseRelease(t, "3.8.0-19-generic", &KernelVersionInfo{Kernel: 3, Major: 8, Minor: 0, Flavor: "-19-generic"}, 0)
assertParseRelease(t, "3.12.8tag", &KernelVersionInfo{Kernel: 3, Major: 12, Minor: 8, Flavor: "tag"}, 0)
assertParseRelease(t, "3.12-1-amd64", &KernelVersionInfo{Kernel: 3, Major: 12, Minor: 0, Flavor: "-1-amd64"}, 0)
}
func TestParsePortMapping(t *testing.T) {
data, err := PartParser("ip:public:private", "192.168.1.1:80:8080")
if err != nil {
t.Fatal(err)
}
if len(data) != 3 {
t.FailNow()
}
if data["ip"] != "192.168.1.1" {
t.Fail()
}
if data["public"] != "80" {
t.Fail()
}
if data["private"] != "8080" {
t.Fail()
}
}
func TestReplaceAndAppendEnvVars(t *testing.T) {
var (
d = []string{"HOME=/"}
o = []string{"HOME=/root", "TERM=xterm"}
)
env := ReplaceOrAppendEnvValues(d, o)
if len(env) != 2 {
t.Fatalf("expected len of 2 got %d", len(env))
}
if env[0] != "HOME=/root" {
t.Fatalf("expected HOME=/root got '%s'", env[0])
}
if env[1] != "TERM=xterm" {
t.Fatalf("expected TERM=xterm got '%s'", env[1])
}
}
// Reading a symlink to a directory must return the directory
func TestReadSymlinkedDirectoryExistingDirectory(t *testing.T) {
var err error
if err = os.Mkdir("/tmp/testReadSymlinkToExistingDirectory", 0777); err != nil {
t.Errorf("failed to create directory: %s", err)
}
if err = os.Symlink("/tmp/testReadSymlinkToExistingDirectory", "/tmp/dirLinkTest"); err != nil {
t.Errorf("failed to create symlink: %s", err)
}
var path string
if path, err = ReadSymlinkedDirectory("/tmp/dirLinkTest"); err != nil {
t.Fatalf("failed to read symlink to directory: %s", err)
}
if path != "/tmp/testReadSymlinkToExistingDirectory" {
t.Fatalf("symlink returned unexpected directory: %s", path)
}
if err = os.Remove("/tmp/testReadSymlinkToExistingDirectory"); err != nil {
t.Errorf("failed to remove temporary directory: %s", err)
}
if err = os.Remove("/tmp/dirLinkTest"); err != nil {
t.Errorf("failed to remove symlink: %s", err)
}
}
// Reading a non-existing symlink must fail
func TestReadSymlinkedDirectoryNonExistingSymlink(t *testing.T) {
var path string
var err error
if path, err = ReadSymlinkedDirectory("/tmp/test/foo/Non/ExistingPath"); err == nil {
t.Fatalf("error expected for non-existing symlink")
}
if path != "" {
t.Fatalf("expected empty path, but '%s' was returned", path)
}
}
// Reading a symlink to a file must fail
func TestReadSymlinkedDirectoryToFile(t *testing.T) {
var err error
var file *os.File
if file, err = os.Create("/tmp/testReadSymlinkToFile"); err != nil {
t.Fatalf("failed to create file: %s", err)
}
file.Close()
if err = os.Symlink("/tmp/testReadSymlinkToFile", "/tmp/fileLinkTest"); err != nil {
t.Errorf("failed to create symlink: %s", err)
}
var path string
if path, err = ReadSymlinkedDirectory("/tmp/fileLinkTest"); err == nil {
t.Fatalf("ReadSymlinkedDirectory on a symlink to a file should've failed")
}
if path != "" {
t.Fatalf("path should've been empty: %s", path)
}
if err = os.Remove("/tmp/testReadSymlinkToFile"); err != nil {
t.Errorf("failed to remove file: %s", err)
}
if err = os.Remove("/tmp/fileLinkTest"); err != nil {
t.Errorf("failed to remove symlink: %s", err)
}
}