136 lines
3.9 KiB
Go
136 lines
3.9 KiB
Go
// Copyright (c) HashiCorp, Inc.
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// SPDX-License-Identifier: MPL-2.0
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package client
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import (
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"fmt"
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"net"
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"net/rpc"
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"time"
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"github.com/hashicorp/nomad/client/config"
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"github.com/hashicorp/nomad/client/fingerprint"
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"github.com/hashicorp/nomad/client/servers"
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"github.com/hashicorp/nomad/client/serviceregistration/mock"
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agentconsul "github.com/hashicorp/nomad/command/agent/consul"
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"github.com/hashicorp/nomad/helper/pluginutils/catalog"
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"github.com/hashicorp/nomad/helper/pluginutils/singleton"
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"github.com/hashicorp/nomad/helper/pool"
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"github.com/hashicorp/nomad/helper/testlog"
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testing "github.com/mitchellh/go-testing-interface"
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)
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// TestClient creates an in-memory client for testing purposes and returns a
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// cleanup func to shutdown the client and remove the alloc and state dirs.
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//
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// There is no need to override the AllocDir or StateDir as they are randomized
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// and removed in the returned cleanup function. If they are overridden in the
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// callback then the caller still must run the returned cleanup func.
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func TestClient(t testing.T, cb func(c *config.Config)) (*Client, func() error) {
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return TestClientWithRPCs(t, cb, nil)
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}
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func TestClientWithRPCs(t testing.T, cb func(c *config.Config), rpcs map[string]interface{}) (*Client, func() error) {
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conf, cleanup := config.TestClientConfig(t)
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// Tighten the fingerprinter timeouts (must be done in client package
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// to avoid circular dependencies)
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if conf.Options == nil {
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conf.Options = make(map[string]string)
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}
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conf.Options[fingerprint.TightenNetworkTimeoutsConfig] = "true"
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logger := testlog.HCLogger(t)
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conf.Logger = logger
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if cb != nil {
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cb(conf)
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}
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// Set the plugin loaders
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if conf.PluginLoader == nil {
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conf.PluginLoader = catalog.TestPluginLoaderWithOptions(t, "", conf.Options, nil)
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}
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if conf.PluginSingletonLoader == nil {
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conf.PluginSingletonLoader = singleton.NewSingletonLoader(logger, conf.PluginLoader)
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}
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mockCatalog := agentconsul.NewMockCatalog(logger)
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mockService := mock.NewServiceRegistrationHandler(logger)
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client, err := NewClient(conf, mockCatalog, nil, mockService, rpcs)
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if err != nil {
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cleanup()
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t.Fatalf("err: %v", err)
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}
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return client, func() error {
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ch := make(chan error)
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go func() {
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defer close(ch)
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// Shutdown client
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err := client.Shutdown()
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if err != nil {
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ch <- fmt.Errorf("failed to shutdown client: %v", err)
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}
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// Call TestClientConfig cleanup
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cleanup()
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}()
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select {
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case e := <-ch:
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return e
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case <-time.After(1 * time.Minute):
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return fmt.Errorf("timed out while shutting down client")
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}
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}
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}
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// TestRPCOnlyClient is a client that only pings to establish a connection
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// with the server and then returns mock RPC responses for those interfaces
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// passed in the `rpcs` parameter. Useful for testing client RPCs from the
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// server. Returns the Client, a shutdown function, and any error.
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func TestRPCOnlyClient(t testing.T, srvAddr net.Addr, rpcs map[string]interface{}) (*Client, func() error, error) {
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var err error
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conf, cleanup := config.TestClientConfig(t)
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client := &Client{config: conf, logger: testlog.HCLogger(t)}
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client.servers = servers.New(client.logger, client.shutdownCh, client)
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client.rpcServer = rpc.NewServer()
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for name, rpc := range rpcs {
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client.rpcServer.RegisterName(name, rpc)
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}
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client.connPool = pool.NewPool(testlog.HCLogger(t), 10*time.Second, 10, nil)
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cancelFunc := func() error {
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ch := make(chan error)
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go func() {
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defer close(ch)
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client.connPool.Shutdown()
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client.shutdownGroup.Wait()
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cleanup()
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}()
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select {
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case <-ch:
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return nil
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case <-time.After(1 * time.Minute):
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return fmt.Errorf("timed out while shutting down client")
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}
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}
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go client.rpcConnListener()
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_, err = client.SetServers([]string{srvAddr.String()})
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if err != nil {
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return nil, cancelFunc, fmt.Errorf("could not set servers: %v", err)
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}
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client.shutdownGroup.Go(client.registerAndHeartbeat)
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return client, cancelFunc, nil
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}
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