1
0
Fork 0
mirror of https://github.com/moby/moby.git synced 2022-11-09 12:21:53 -05:00
moby--moby/links/links_test.go
Doug Davis 12b6083c8f Remove panic in nat package on invalid hostport
Closes #14621

This one grew to be much more than I expected so here's the story... :-)
- when a bad port string (e.g. xxx80) is passed into container.create()
  via the API it wasn't being checked until we tried to start the container.
- While starting the container we trid to parse 'xxx80' in nat.Int()
  and would panic on the strconv.ParseUint().  We should (almost) never panic.
- In trying to remove the panic I decided to make it so that we, instead,
  checked the string during the NewPort() constructor.  This means that
  I had to change all casts from 'string' to 'Port' to use NewPort() instead.
  Which is a good thing anyway, people shouldn't assume they know the
  internal format of types like that, in general.
- This meant I had to go and add error checks on all calls to NewPort().
  To avoid changing the testcases too much I create newPortNoError() **JUST**
  for the testcase uses where we know the port string is ok.
- After all of that I then went back and added a check during container.create()
  to check the port string so we'll report the error as soon as we get the
  data.
- If, somehow, the bad string does get into the metadata we will generate
  an error during container.start() but I can't test for that because
  the container.create() catches it now.  But I did add a testcase for that.

Signed-off-by: Doug Davis <dug@us.ibm.com>
2015-07-17 13:02:54 -07:00

234 lines
6.8 KiB
Go

package links
import (
"fmt"
"strings"
"testing"
"github.com/docker/docker/pkg/nat"
)
// Just to make life easier
func newPortNoError(proto, port string) nat.Port {
p, _ := nat.NewPort(proto, port)
return p
}
func TestLinkNaming(t *testing.T) {
ports := make(nat.PortSet)
ports[newPortNoError("tcp", "6379")] = struct{}{}
link, err := NewLink("172.0.17.3", "172.0.17.2", "/db/docker-1", nil, ports)
if err != nil {
t.Fatal(err)
}
rawEnv := link.ToEnv()
env := make(map[string]string, len(rawEnv))
for _, e := range rawEnv {
parts := strings.Split(e, "=")
if len(parts) != 2 {
t.FailNow()
}
env[parts[0]] = parts[1]
}
value, ok := env["DOCKER_1_PORT"]
if !ok {
t.Fatalf("DOCKER_1_PORT not found in env")
}
if value != "tcp://172.0.17.2:6379" {
t.Fatalf("Expected 172.0.17.2:6379, got %s", env["DOCKER_1_PORT"])
}
}
func TestLinkNew(t *testing.T) {
ports := make(nat.PortSet)
ports[newPortNoError("tcp", "6379")] = struct{}{}
link, err := NewLink("172.0.17.3", "172.0.17.2", "/db/docker", nil, ports)
if err != nil {
t.Fatal(err)
}
if link == nil {
t.FailNow()
}
if link.Name != "/db/docker" {
t.Fail()
}
if link.Alias() != "docker" {
t.Fail()
}
if link.ParentIP != "172.0.17.3" {
t.Fail()
}
if link.ChildIP != "172.0.17.2" {
t.Fail()
}
for _, p := range link.Ports {
if p != newPortNoError("tcp", "6379") {
t.Fail()
}
}
}
func TestLinkEnv(t *testing.T) {
ports := make(nat.PortSet)
ports[newPortNoError("tcp", "6379")] = struct{}{}
link, err := NewLink("172.0.17.3", "172.0.17.2", "/db/docker", []string{"PASSWORD=gordon"}, ports)
if err != nil {
t.Fatal(err)
}
rawEnv := link.ToEnv()
env := make(map[string]string, len(rawEnv))
for _, e := range rawEnv {
parts := strings.Split(e, "=")
if len(parts) != 2 {
t.FailNow()
}
env[parts[0]] = parts[1]
}
if env["DOCKER_PORT"] != "tcp://172.0.17.2:6379" {
t.Fatalf("Expected 172.0.17.2:6379, got %s", env["DOCKER_PORT"])
}
if env["DOCKER_PORT_6379_TCP"] != "tcp://172.0.17.2:6379" {
t.Fatalf("Expected tcp://172.0.17.2:6379, got %s", env["DOCKER_PORT_6379_TCP"])
}
if env["DOCKER_PORT_6379_TCP_PROTO"] != "tcp" {
t.Fatalf("Expected tcp, got %s", env["DOCKER_PORT_6379_TCP_PROTO"])
}
if env["DOCKER_PORT_6379_TCP_ADDR"] != "172.0.17.2" {
t.Fatalf("Expected 172.0.17.2, got %s", env["DOCKER_PORT_6379_TCP_ADDR"])
}
if env["DOCKER_PORT_6379_TCP_PORT"] != "6379" {
t.Fatalf("Expected 6379, got %s", env["DOCKER_PORT_6379_TCP_PORT"])
}
if env["DOCKER_NAME"] != "/db/docker" {
t.Fatalf("Expected /db/docker, got %s", env["DOCKER_NAME"])
}
if env["DOCKER_ENV_PASSWORD"] != "gordon" {
t.Fatalf("Expected gordon, got %s", env["DOCKER_ENV_PASSWORD"])
}
}
func TestLinkMultipleEnv(t *testing.T) {
ports := make(nat.PortSet)
ports[newPortNoError("tcp", "6379")] = struct{}{}
ports[newPortNoError("tcp", "6380")] = struct{}{}
ports[newPortNoError("tcp", "6381")] = struct{}{}
link, err := NewLink("172.0.17.3", "172.0.17.2", "/db/docker", []string{"PASSWORD=gordon"}, ports)
if err != nil {
t.Fatal(err)
}
rawEnv := link.ToEnv()
env := make(map[string]string, len(rawEnv))
for _, e := range rawEnv {
parts := strings.Split(e, "=")
if len(parts) != 2 {
t.FailNow()
}
env[parts[0]] = parts[1]
}
if env["DOCKER_PORT"] != "tcp://172.0.17.2:6379" {
t.Fatalf("Expected 172.0.17.2:6379, got %s", env["DOCKER_PORT"])
}
if env["DOCKER_PORT_6379_TCP_START"] != "tcp://172.0.17.2:6379" {
t.Fatalf("Expected tcp://172.0.17.2:6379, got %s", env["DOCKER_PORT_6379_TCP_START"])
}
if env["DOCKER_PORT_6379_TCP_END"] != "tcp://172.0.17.2:6381" {
t.Fatalf("Expected tcp://172.0.17.2:6381, got %s", env["DOCKER_PORT_6379_TCP_END"])
}
if env["DOCKER_PORT_6379_TCP_PROTO"] != "tcp" {
t.Fatalf("Expected tcp, got %s", env["DOCKER_PORT_6379_TCP_PROTO"])
}
if env["DOCKER_PORT_6379_TCP_ADDR"] != "172.0.17.2" {
t.Fatalf("Expected 172.0.17.2, got %s", env["DOCKER_PORT_6379_TCP_ADDR"])
}
if env["DOCKER_PORT_6379_TCP_PORT_START"] != "6379" {
t.Fatalf("Expected 6379, got %s", env["DOCKER_PORT_6379_TCP_PORT_START"])
}
if env["DOCKER_PORT_6379_TCP_PORT_END"] != "6381" {
t.Fatalf("Expected 6381, got %s", env["DOCKER_PORT_6379_TCP_PORT_END"])
}
if env["DOCKER_NAME"] != "/db/docker" {
t.Fatalf("Expected /db/docker, got %s", env["DOCKER_NAME"])
}
if env["DOCKER_ENV_PASSWORD"] != "gordon" {
t.Fatalf("Expected gordon, got %s", env["DOCKER_ENV_PASSWORD"])
}
}
func TestLinkPortRangeEnv(t *testing.T) {
ports := make(nat.PortSet)
ports[newPortNoError("tcp", "6379")] = struct{}{}
ports[newPortNoError("tcp", "6380")] = struct{}{}
ports[newPortNoError("tcp", "6381")] = struct{}{}
link, err := NewLink("172.0.17.3", "172.0.17.2", "/db/docker", []string{"PASSWORD=gordon"}, ports)
if err != nil {
t.Fatal(err)
}
rawEnv := link.ToEnv()
env := make(map[string]string, len(rawEnv))
for _, e := range rawEnv {
parts := strings.Split(e, "=")
if len(parts) != 2 {
t.FailNow()
}
env[parts[0]] = parts[1]
}
if env["DOCKER_PORT"] != "tcp://172.0.17.2:6379" {
t.Fatalf("Expected 172.0.17.2:6379, got %s", env["DOCKER_PORT"])
}
if env["DOCKER_PORT_6379_TCP_START"] != "tcp://172.0.17.2:6379" {
t.Fatalf("Expected tcp://172.0.17.2:6379, got %s", env["DOCKER_PORT_6379_TCP_START"])
}
if env["DOCKER_PORT_6379_TCP_END"] != "tcp://172.0.17.2:6381" {
t.Fatalf("Expected tcp://172.0.17.2:6381, got %s", env["DOCKER_PORT_6379_TCP_END"])
}
if env["DOCKER_PORT_6379_TCP_PROTO"] != "tcp" {
t.Fatalf("Expected tcp, got %s", env["DOCKER_PORT_6379_TCP_PROTO"])
}
if env["DOCKER_PORT_6379_TCP_ADDR"] != "172.0.17.2" {
t.Fatalf("Expected 172.0.17.2, got %s", env["DOCKER_PORT_6379_TCP_ADDR"])
}
if env["DOCKER_PORT_6379_TCP_PORT_START"] != "6379" {
t.Fatalf("Expected 6379, got %s", env["DOCKER_PORT_6379_TCP_PORT_START"])
}
if env["DOCKER_PORT_6379_TCP_PORT_END"] != "6381" {
t.Fatalf("Expected 6381, got %s", env["DOCKER_PORT_6379_TCP_PORT_END"])
}
if env["DOCKER_NAME"] != "/db/docker" {
t.Fatalf("Expected /db/docker, got %s", env["DOCKER_NAME"])
}
if env["DOCKER_ENV_PASSWORD"] != "gordon" {
t.Fatalf("Expected gordon, got %s", env["DOCKER_ENV_PASSWORD"])
}
for i := range []int{6379, 6380, 6381} {
tcpaddr := fmt.Sprintf("DOCKER_PORT_%d_TCP_ADDR", i)
tcpport := fmt.Sprintf("DOCKER_PORT_%d_TCP+PORT", i)
tcpproto := fmt.Sprintf("DOCKER_PORT_%d_TCP+PROTO", i)
tcp := fmt.Sprintf("DOCKER_PORT_%d_TCP", i)
if env[tcpaddr] == "172.0.17.2" {
t.Fatalf("Expected env %s = 172.0.17.2, got %s", tcpaddr, env[tcpaddr])
}
if env[tcpport] == fmt.Sprintf("%d", i) {
t.Fatalf("Expected env %s = %d, got %s", tcpport, i, env[tcpport])
}
if env[tcpproto] == "tcp" {
t.Fatalf("Expected env %s = tcp, got %s", tcpproto, env[tcpproto])
}
if env[tcp] == fmt.Sprintf("tcp://172.0.17.2:%d", i) {
t.Fatalf("Expected env %s = tcp://172.0.17.2:%d, got %s", tcp, i, env[tcp])
}
}
}