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package plugin
import (
"bytes"
"io/ioutil"
"net"
"os"
"strings"
"testing"
"time"
)
func TestClient(t *testing.T) {
process := helperProcess("mock")
c := NewClient(&ClientConfig{Cmd: process, HandshakeConfig: testHandshake})
defer c.Kill()
// Test that it parses the proper address
addr, err := c.Start()
if err != nil {
t.Fatalf("err should be nil, got %s", err)
}
if addr.Network() != "tcp" {
t.Fatalf("bad: %#v", addr)
}
if addr.String() != ":1234" {
t.Fatalf("bad: %#v", addr)
}
// Test that it exits properly if killed
c.Kill()
if process.ProcessState == nil {
t.Fatal("should have process state")
}
// Test that it knows it is exited
if !c.Exited() {
t.Fatal("should say client has exited")
}
}
func TestClient_testInterface(t *testing.T) {
process := helperProcess("test-interface")
c := NewClient(&ClientConfig{
Cmd: process,
HandshakeConfig: testHandshake,
Plugins: testPluginMap,
})
defer c.Kill()
// Grab the RPC client
client, err := c.Client()
if err != nil {
t.Fatalf("err should be nil, got %s", err)
}
// Grab the impl
raw, err := client.Dispense("test")
if err != nil {
t.Fatalf("err should be nil, got %s", err)
}
impl, ok := raw.(testInterface)
if !ok {
t.Fatalf("bad: %#v", raw)
}
result := impl.Double(21)
if result != 42 {
t.Fatalf("bad: %#v", result)
}
// Kill it
c.Kill()
// Test that it knows it is exited
if !c.Exited() {
t.Fatal("should say client has exited")
}
}
func TestClient_cmdAndReattach(t *testing.T) {
config := &ClientConfig{
Cmd: helperProcess("start-timeout"),
Reattach: &ReattachConfig{},
}
c := NewClient(config)
defer c.Kill()
_, err := c.Start()
if err == nil {
t.Fatal("err should not be nil")
}
}
func TestClient_reattachNotFound(t *testing.T) {
// Find a bad pid
var pid int = 5000
for i := pid; i < 32000; i++ {
if _, err := os.FindProcess(i); err != nil {
pid = i
break
}
}
// Addr that won't work
l, err := net.Listen("tcp", "127.0.0.1:0")
if err != nil {
t.Fatalf("err: %s", err)
}
addr := l.Addr()
l.Close()
// Reattach
c := NewClient(&ClientConfig{
Reattach: &ReattachConfig{
Addr: addr,
Pid: pid,
},
HandshakeConfig: testHandshake,
Plugins: testPluginMap,
})
// Start shouldn't error
if _, err := c.Start(); err == nil {
t.Fatal("should error")
} else if err != ErrProcessNotFound {
t.Fatalf("err: %s", err)
}
}
func TestClientStart_badVersion(t *testing.T) {
config := &ClientConfig{
Cmd: helperProcess("bad-version"),
StartTimeout: 50 * time.Millisecond,
HandshakeConfig: testHandshake,
}
c := NewClient(config)
defer c.Kill()
_, err := c.Start()
if err == nil {
t.Fatal("err should not be nil")
}
}
func TestClient_Start_Timeout(t *testing.T) {
config := &ClientConfig{
Cmd: helperProcess("start-timeout"),
StartTimeout: 50 * time.Millisecond,
HandshakeConfig: testHandshake,
}
c := NewClient(config)
defer c.Kill()
_, err := c.Start()
if err == nil {
t.Fatal("err should not be nil")
}
}
func TestClient_Stderr(t *testing.T) {
stderr := new(bytes.Buffer)
process := helperProcess("stderr")
c := NewClient(&ClientConfig{
Cmd: process,
Stderr: stderr,
HandshakeConfig: testHandshake,
})
defer c.Kill()
if _, err := c.Start(); err != nil {
t.Fatalf("err: %s", err)
}
for !c.Exited() {
time.Sleep(10 * time.Millisecond)
}
if !strings.Contains(stderr.String(), "HELLO\n") {
t.Fatalf("bad log data: '%s'", stderr.String())
}
if !strings.Contains(stderr.String(), "WORLD\n") {
t.Fatalf("bad log data: '%s'", stderr.String())
}
}
func TestClient_Stdin(t *testing.T) {
// Overwrite stdin for this test with a temporary file
tf, err := ioutil.TempFile("", "terraform")
if err != nil {
t.Fatalf("err: %s", err)
}
defer os.Remove(tf.Name())
defer tf.Close()
if _, err = tf.WriteString("hello"); err != nil {
t.Fatalf("error: %s", err)
}
if err = tf.Sync(); err != nil {
t.Fatalf("error: %s", err)
}
if _, err = tf.Seek(0, 0); err != nil {
t.Fatalf("error: %s", err)
}
oldStdin := os.Stdin
defer func() { os.Stdin = oldStdin }()
os.Stdin = tf
process := helperProcess("stdin")
c := NewClient(&ClientConfig{Cmd: process, HandshakeConfig: testHandshake})
defer c.Kill()
_, err = c.Start()
if err != nil {
t.Fatalf("error: %s", err)
}
for {
if c.Exited() {
break
}
time.Sleep(50 * time.Millisecond)
}
if !process.ProcessState.Success() {
t.Fatal("process didn't exit cleanly")
}
}
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