888 lines
18 KiB
Go
888 lines
18 KiB
Go
package plugin
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import (
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"bytes"
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"crypto/sha256"
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"io"
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"io/ioutil"
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"net"
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"os"
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"path/filepath"
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"strings"
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"testing"
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"time"
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hclog "github.com/hashicorp/go-hclog"
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)
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func TestClient(t *testing.T) {
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process := helperProcess("mock")
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c := NewClient(&ClientConfig{Cmd: process, HandshakeConfig: testHandshake})
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defer c.Kill()
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// Test that it parses the proper address
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addr, err := c.Start()
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if err != nil {
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t.Fatalf("err should be nil, got %s", err)
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}
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if addr.Network() != "tcp" {
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t.Fatalf("bad: %#v", addr)
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}
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if addr.String() != ":1234" {
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t.Fatalf("bad: %#v", addr)
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}
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// Test that it exits properly if killed
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c.Kill()
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if process.ProcessState == nil {
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t.Fatal("should have process state")
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}
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// Test that it knows it is exited
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if !c.Exited() {
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t.Fatal("should say client has exited")
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}
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}
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// This tests a bug where Kill would start
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func TestClient_killStart(t *testing.T) {
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// Create a temporary dir to store the result file
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td, err := ioutil.TempDir("", "plugin")
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if err != nil {
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t.Fatalf("err: %s", err)
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}
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defer os.RemoveAll(td)
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// Start the client
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path := filepath.Join(td, "booted")
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process := helperProcess("bad-version", path)
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c := NewClient(&ClientConfig{Cmd: process, HandshakeConfig: testHandshake})
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defer c.Kill()
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// Verify our path doesn't exist
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if _, err := os.Stat(path); err == nil || !os.IsNotExist(err) {
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t.Fatalf("bad: %s", err)
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}
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// Test that it parses the proper address
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if _, err := c.Start(); err == nil {
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t.Fatal("expected error")
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}
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// Verify we started
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if _, err := os.Stat(path); err != nil {
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t.Fatalf("bad: %s", err)
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}
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if err := os.Remove(path); err != nil {
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t.Fatalf("bad: %s", err)
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}
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// Test that Kill does nothing really
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c.Kill()
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// Test that it knows it is exited
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if !c.Exited() {
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t.Fatal("should say client has exited")
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}
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if process.ProcessState == nil {
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t.Fatal("should have no process state")
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}
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// Verify our path doesn't exist
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if _, err := os.Stat(path); err == nil || !os.IsNotExist(err) {
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t.Fatalf("bad: %s", err)
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}
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}
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func TestClient_testCleanup(t *testing.T) {
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// Create a temporary dir to store the result file
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td, err := ioutil.TempDir("", "plugin")
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if err != nil {
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t.Fatalf("err: %s", err)
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}
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defer os.RemoveAll(td)
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// Create a path that the helper process will write on cleanup
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path := filepath.Join(td, "output")
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// Test the cleanup
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process := helperProcess("cleanup", path)
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c := NewClient(&ClientConfig{
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Cmd: process,
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HandshakeConfig: testHandshake,
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Plugins: testPluginMap,
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})
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// Grab the client so the process starts
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if _, err := c.Client(); err != nil {
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c.Kill()
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t.Fatalf("err: %s", err)
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}
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// Kill it gracefully
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c.Kill()
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// Test for the file
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if _, err := os.Stat(path); err != nil {
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t.Fatalf("err: %s", err)
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}
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}
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func TestClient_testInterface(t *testing.T) {
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process := helperProcess("test-interface")
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c := NewClient(&ClientConfig{
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Cmd: process,
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HandshakeConfig: testHandshake,
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Plugins: testPluginMap,
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})
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defer c.Kill()
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// Grab the RPC client
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client, err := c.Client()
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if err != nil {
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t.Fatalf("err should be nil, got %s", err)
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}
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// Grab the impl
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raw, err := client.Dispense("test")
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if err != nil {
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t.Fatalf("err should be nil, got %s", err)
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}
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impl, ok := raw.(testInterface)
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if !ok {
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t.Fatalf("bad: %#v", raw)
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}
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result := impl.Double(21)
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if result != 42 {
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t.Fatalf("bad: %#v", result)
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}
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// Kill it
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c.Kill()
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// Test that it knows it is exited
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if !c.Exited() {
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t.Fatal("should say client has exited")
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}
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}
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func TestClient_grpc(t *testing.T) {
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process := helperProcess("test-grpc")
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c := NewClient(&ClientConfig{
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Cmd: process,
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HandshakeConfig: testHandshake,
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Plugins: testPluginMap,
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AllowedProtocols: []Protocol{ProtocolGRPC},
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})
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defer c.Kill()
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if _, err := c.Start(); err != nil {
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t.Fatalf("err: %s", err)
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}
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if v := c.Protocol(); v != ProtocolGRPC {
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t.Fatalf("bad: %s", v)
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}
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// Grab the RPC client
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client, err := c.Client()
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if err != nil {
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t.Fatalf("err should be nil, got %s", err)
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}
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// Grab the impl
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raw, err := client.Dispense("test")
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if err != nil {
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t.Fatalf("err should be nil, got %s", err)
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}
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impl, ok := raw.(testInterface)
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if !ok {
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t.Fatalf("bad: %#v", raw)
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}
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result := impl.Double(21)
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if result != 42 {
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t.Fatalf("bad: %#v", result)
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}
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// Kill it
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c.Kill()
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// Test that it knows it is exited
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if !c.Exited() {
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t.Fatal("should say client has exited")
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}
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}
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func TestClient_grpcNotAllowed(t *testing.T) {
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process := helperProcess("test-grpc")
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c := NewClient(&ClientConfig{
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Cmd: process,
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HandshakeConfig: testHandshake,
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Plugins: testPluginMap,
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})
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defer c.Kill()
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if _, err := c.Start(); err == nil {
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t.Fatal("should error")
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}
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}
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func TestClient_cmdAndReattach(t *testing.T) {
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config := &ClientConfig{
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Cmd: helperProcess("start-timeout"),
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Reattach: &ReattachConfig{},
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}
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c := NewClient(config)
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defer c.Kill()
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_, err := c.Start()
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if err == nil {
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t.Fatal("err should not be nil")
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}
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}
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func TestClient_reattach(t *testing.T) {
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process := helperProcess("test-interface")
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c := NewClient(&ClientConfig{
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Cmd: process,
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HandshakeConfig: testHandshake,
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Plugins: testPluginMap,
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})
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defer c.Kill()
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// Grab the RPC client
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_, err := c.Client()
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if err != nil {
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t.Fatalf("err should be nil, got %s", err)
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}
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// Get the reattach configuration
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reattach := c.ReattachConfig()
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// Create a new client
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c = NewClient(&ClientConfig{
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Reattach: reattach,
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HandshakeConfig: testHandshake,
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Plugins: testPluginMap,
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})
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// Grab the RPC client
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client, err := c.Client()
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if err != nil {
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t.Fatalf("err should be nil, got %s", err)
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}
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// Grab the impl
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raw, err := client.Dispense("test")
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if err != nil {
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t.Fatalf("err should be nil, got %s", err)
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}
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impl, ok := raw.(testInterface)
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if !ok {
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t.Fatalf("bad: %#v", raw)
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}
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result := impl.Double(21)
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if result != 42 {
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t.Fatalf("bad: %#v", result)
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}
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// Kill it
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c.Kill()
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// Test that it knows it is exited
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if !c.Exited() {
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t.Fatal("should say client has exited")
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}
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}
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func TestClient_reattachNoProtocol(t *testing.T) {
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process := helperProcess("test-interface")
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c := NewClient(&ClientConfig{
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Cmd: process,
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HandshakeConfig: testHandshake,
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Plugins: testPluginMap,
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})
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defer c.Kill()
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// Grab the RPC client
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_, err := c.Client()
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if err != nil {
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t.Fatalf("err should be nil, got %s", err)
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}
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// Get the reattach configuration
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reattach := c.ReattachConfig()
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reattach.Protocol = ""
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// Create a new client
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c = NewClient(&ClientConfig{
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Reattach: reattach,
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HandshakeConfig: testHandshake,
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Plugins: testPluginMap,
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})
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// Grab the RPC client
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client, err := c.Client()
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if err != nil {
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t.Fatalf("err should be nil, got %s", err)
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}
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// Grab the impl
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raw, err := client.Dispense("test")
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if err != nil {
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t.Fatalf("err should be nil, got %s", err)
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}
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impl, ok := raw.(testInterface)
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if !ok {
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t.Fatalf("bad: %#v", raw)
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}
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result := impl.Double(21)
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if result != 42 {
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t.Fatalf("bad: %#v", result)
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}
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// Kill it
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c.Kill()
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// Test that it knows it is exited
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if !c.Exited() {
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t.Fatal("should say client has exited")
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}
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}
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func TestClient_reattachGRPC(t *testing.T) {
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process := helperProcess("test-grpc")
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c := NewClient(&ClientConfig{
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Cmd: process,
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HandshakeConfig: testHandshake,
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Plugins: testPluginMap,
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AllowedProtocols: []Protocol{ProtocolGRPC},
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})
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defer c.Kill()
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// Grab the RPC client
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_, err := c.Client()
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if err != nil {
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t.Fatalf("err should be nil, got %s", err)
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}
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// Get the reattach configuration
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reattach := c.ReattachConfig()
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// Create a new client
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c = NewClient(&ClientConfig{
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Reattach: reattach,
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HandshakeConfig: testHandshake,
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Plugins: testPluginMap,
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AllowedProtocols: []Protocol{ProtocolGRPC},
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})
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// Grab the RPC client
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client, err := c.Client()
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if err != nil {
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t.Fatalf("err should be nil, got %s", err)
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}
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// Grab the impl
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raw, err := client.Dispense("test")
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if err != nil {
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t.Fatalf("err should be nil, got %s", err)
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}
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impl, ok := raw.(testInterface)
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if !ok {
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t.Fatalf("bad: %#v", raw)
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}
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result := impl.Double(21)
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if result != 42 {
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t.Fatalf("bad: %#v", result)
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}
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// Kill it
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c.Kill()
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// Test that it knows it is exited
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if !c.Exited() {
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t.Fatal("should say client has exited")
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}
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}
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func TestClient_reattachNotFound(t *testing.T) {
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// Find a bad pid
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var pid int = 5000
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for i := pid; i < 32000; i++ {
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if _, err := os.FindProcess(i); err != nil {
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pid = i
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break
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}
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}
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// Addr that won't work
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l, err := net.Listen("tcp", "127.0.0.1:0")
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if err != nil {
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t.Fatalf("err: %s", err)
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}
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addr := l.Addr()
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l.Close()
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// Reattach
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c := NewClient(&ClientConfig{
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Reattach: &ReattachConfig{
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Addr: addr,
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Pid: pid,
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},
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HandshakeConfig: testHandshake,
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Plugins: testPluginMap,
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})
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// Start shouldn't error
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if _, err := c.Start(); err == nil {
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t.Fatal("should error")
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} else if err != ErrProcessNotFound {
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t.Fatalf("err: %s", err)
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}
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}
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func TestClientStart_badVersion(t *testing.T) {
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config := &ClientConfig{
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Cmd: helperProcess("bad-version"),
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StartTimeout: 50 * time.Millisecond,
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HandshakeConfig: testHandshake,
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}
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c := NewClient(config)
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defer c.Kill()
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_, err := c.Start()
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if err == nil {
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t.Fatal("err should not be nil")
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}
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}
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func TestClient_Start_Timeout(t *testing.T) {
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config := &ClientConfig{
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Cmd: helperProcess("start-timeout"),
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StartTimeout: 50 * time.Millisecond,
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HandshakeConfig: testHandshake,
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}
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c := NewClient(config)
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defer c.Kill()
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_, err := c.Start()
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if err == nil {
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t.Fatal("err should not be nil")
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}
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}
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func TestClient_Stderr(t *testing.T) {
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stderr := new(bytes.Buffer)
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process := helperProcess("stderr")
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c := NewClient(&ClientConfig{
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Cmd: process,
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Stderr: stderr,
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HandshakeConfig: testHandshake,
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})
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defer c.Kill()
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if _, err := c.Start(); err != nil {
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t.Fatalf("err: %s", err)
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}
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for !c.Exited() {
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time.Sleep(10 * time.Millisecond)
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}
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if !strings.Contains(stderr.String(), "HELLO\n") {
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t.Fatalf("bad log data: '%s'", stderr.String())
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}
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if !strings.Contains(stderr.String(), "WORLD\n") {
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t.Fatalf("bad log data: '%s'", stderr.String())
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}
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}
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func TestClient_StderrJSON(t *testing.T) {
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stderr := new(bytes.Buffer)
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process := helperProcess("stderr-json")
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c := NewClient(&ClientConfig{
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Cmd: process,
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Stderr: stderr,
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HandshakeConfig: testHandshake,
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})
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defer c.Kill()
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if _, err := c.Start(); err != nil {
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t.Fatalf("err: %s", err)
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}
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for !c.Exited() {
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time.Sleep(10 * time.Millisecond)
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}
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if !strings.Contains(stderr.String(), "[\"HELLO\"]\n") {
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t.Fatalf("bad log data: '%s'", stderr.String())
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}
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if !strings.Contains(stderr.String(), "12345\n") {
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t.Fatalf("bad log data: '%s'", stderr.String())
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}
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}
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func TestClient_Stdin(t *testing.T) {
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// Overwrite stdin for this test with a temporary file
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tf, err := ioutil.TempFile("", "terraform")
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if err != nil {
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t.Fatalf("err: %s", err)
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}
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defer os.Remove(tf.Name())
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defer tf.Close()
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if _, err = tf.WriteString("hello"); err != nil {
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t.Fatalf("error: %s", err)
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}
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if err = tf.Sync(); err != nil {
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t.Fatalf("error: %s", err)
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}
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if _, err = tf.Seek(0, 0); err != nil {
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t.Fatalf("error: %s", err)
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}
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oldStdin := os.Stdin
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defer func() { os.Stdin = oldStdin }()
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os.Stdin = tf
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process := helperProcess("stdin")
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c := NewClient(&ClientConfig{Cmd: process, HandshakeConfig: testHandshake})
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defer c.Kill()
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_, err = c.Start()
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if err != nil {
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t.Fatalf("error: %s", err)
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}
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for {
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if c.Exited() {
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break
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}
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time.Sleep(50 * time.Millisecond)
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}
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if !process.ProcessState.Success() {
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t.Fatal("process didn't exit cleanly")
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}
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}
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func TestClient_SecureConfig(t *testing.T) {
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// Test failure case
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secureConfig := &SecureConfig{
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Checksum: []byte{'1'},
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Hash: sha256.New(),
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}
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process := helperProcess("test-interface")
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c := NewClient(&ClientConfig{
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Cmd: process,
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HandshakeConfig: testHandshake,
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Plugins: testPluginMap,
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SecureConfig: secureConfig,
|
|
})
|
|
|
|
// Grab the RPC client, should error
|
|
_, err := c.Client()
|
|
c.Kill()
|
|
if err != ErrChecksumsDoNotMatch {
|
|
t.Fatalf("err should be %s, got %s", ErrChecksumsDoNotMatch, err)
|
|
}
|
|
|
|
// Get the checksum of the executable
|
|
file, err := os.Open(os.Args[0])
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer file.Close()
|
|
|
|
hash := sha256.New()
|
|
|
|
_, err = io.Copy(hash, file)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
sum := hash.Sum(nil)
|
|
|
|
secureConfig = &SecureConfig{
|
|
Checksum: sum,
|
|
Hash: sha256.New(),
|
|
}
|
|
|
|
c = NewClient(&ClientConfig{
|
|
Cmd: process,
|
|
HandshakeConfig: testHandshake,
|
|
Plugins: testPluginMap,
|
|
SecureConfig: secureConfig,
|
|
})
|
|
defer c.Kill()
|
|
|
|
// Grab the RPC client
|
|
_, err = c.Client()
|
|
if err != nil {
|
|
t.Fatalf("err should be nil, got %s", err)
|
|
}
|
|
}
|
|
|
|
func TestClient_TLS(t *testing.T) {
|
|
// Test failure case
|
|
process := helperProcess("test-interface-tls")
|
|
cBad := NewClient(&ClientConfig{
|
|
Cmd: process,
|
|
HandshakeConfig: testHandshake,
|
|
Plugins: testPluginMap,
|
|
})
|
|
defer cBad.Kill()
|
|
|
|
// Grab the RPC client
|
|
clientBad, err := cBad.Client()
|
|
if err != nil {
|
|
t.Fatalf("err should be nil, got %s", err)
|
|
}
|
|
|
|
// Grab the impl
|
|
raw, err := clientBad.Dispense("test")
|
|
if err == nil {
|
|
t.Fatal("expected error, got nil")
|
|
}
|
|
|
|
cBad.Kill()
|
|
|
|
// Add TLS config to client
|
|
tlsConfig, err := helperTLSProvider()
|
|
if err != nil {
|
|
t.Fatalf("err should be nil, got %s", err)
|
|
}
|
|
|
|
process = helperProcess("test-interface-tls")
|
|
c := NewClient(&ClientConfig{
|
|
Cmd: process,
|
|
HandshakeConfig: testHandshake,
|
|
Plugins: testPluginMap,
|
|
TLSConfig: tlsConfig,
|
|
})
|
|
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_TLS_grpc(t *testing.T) {
|
|
// Add TLS config to client
|
|
tlsConfig, err := helperTLSProvider()
|
|
if err != nil {
|
|
t.Fatalf("err should be nil, got %s", err)
|
|
}
|
|
|
|
process := helperProcess("test-grpc-tls")
|
|
c := NewClient(&ClientConfig{
|
|
Cmd: process,
|
|
HandshakeConfig: testHandshake,
|
|
Plugins: testPluginMap,
|
|
TLSConfig: tlsConfig,
|
|
AllowedProtocols: []Protocol{ProtocolGRPC},
|
|
})
|
|
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_secureConfigAndReattach(t *testing.T) {
|
|
config := &ClientConfig{
|
|
SecureConfig: &SecureConfig{},
|
|
Reattach: &ReattachConfig{},
|
|
}
|
|
|
|
c := NewClient(config)
|
|
defer c.Kill()
|
|
|
|
_, err := c.Start()
|
|
if err != ErrSecureConfigAndReattach {
|
|
t.Fatalf("err should not be %s, got %s", ErrSecureConfigAndReattach, err)
|
|
}
|
|
}
|
|
|
|
func TestClient_ping(t *testing.T) {
|
|
process := helperProcess("test-interface")
|
|
c := NewClient(&ClientConfig{
|
|
Cmd: process,
|
|
HandshakeConfig: testHandshake,
|
|
Plugins: testPluginMap,
|
|
})
|
|
defer c.Kill()
|
|
|
|
// Get the client
|
|
client, err := c.Client()
|
|
if err != nil {
|
|
t.Fatalf("err: %s", err)
|
|
}
|
|
|
|
// Ping, should work
|
|
if err := client.Ping(); err != nil {
|
|
t.Fatalf("err: %s", err)
|
|
}
|
|
|
|
// Kill it
|
|
c.Kill()
|
|
if err := client.Ping(); err == nil {
|
|
t.Fatal("should error")
|
|
}
|
|
}
|
|
|
|
func TestClient_logger(t *testing.T) {
|
|
t.Run("net/rpc", func(t *testing.T) { testClient_logger(t, "netrpc") })
|
|
t.Run("grpc", func(t *testing.T) { testClient_logger(t, "grpc") })
|
|
}
|
|
|
|
func testClient_logger(t *testing.T, proto string) {
|
|
var buffer bytes.Buffer
|
|
stderr := io.MultiWriter(os.Stderr, &buffer)
|
|
// Custom hclog.Logger
|
|
clientLogger := hclog.New(&hclog.LoggerOptions{
|
|
Name: "test-logger",
|
|
Level: hclog.Trace,
|
|
Output: stderr,
|
|
})
|
|
|
|
process := helperProcess("test-interface-logger-" + proto)
|
|
c := NewClient(&ClientConfig{
|
|
Cmd: process,
|
|
HandshakeConfig: testHandshake,
|
|
Plugins: testPluginMap,
|
|
Logger: clientLogger,
|
|
AllowedProtocols: []Protocol{ProtocolNetRPC, ProtocolGRPC},
|
|
})
|
|
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)
|
|
}
|
|
|
|
{
|
|
// Discard everything else, and capture the output we care about
|
|
buffer.Reset()
|
|
impl.PrintKV("foo", "bar")
|
|
time.Sleep(100 * time.Millisecond)
|
|
line, err := buffer.ReadString('\n')
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if !strings.Contains(line, "foo=bar") {
|
|
t.Fatalf("bad: %q", line)
|
|
}
|
|
}
|
|
|
|
{
|
|
// Try an integer type
|
|
buffer.Reset()
|
|
impl.PrintKV("foo", 12)
|
|
time.Sleep(100 * time.Millisecond)
|
|
line, err := buffer.ReadString('\n')
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if !strings.Contains(line, "foo=12") {
|
|
t.Fatalf("bad: %q", line)
|
|
}
|
|
}
|
|
|
|
// Kill it
|
|
c.Kill()
|
|
|
|
// Test that it knows it is exited
|
|
if !c.Exited() {
|
|
t.Fatal("should say client has exited")
|
|
}
|
|
}
|