github.com/hooklift/nomad@v0.5.7-0.20170407200202-db11e7dd7b55/nomad/rpc_test.go (about)

     1  package nomad
     2  
     3  import (
     4  	"net"
     5  	"net/rpc"
     6  	"testing"
     7  	"time"
     8  
     9  	"github.com/hashicorp/nomad/testutil"
    10  )
    11  
    12  // rpcClient is a test helper method to return a ClientCodec to use to make rpc
    13  // calls to the passed server.
    14  func rpcClient(t *testing.T, s *Server) rpc.ClientCodec {
    15  	addr := s.config.RPCAddr
    16  	conn, err := net.DialTimeout("tcp", addr.String(), time.Second)
    17  	if err != nil {
    18  		t.Fatalf("err: %v", err)
    19  	}
    20  	// Write the Consul RPC byte to set the mode
    21  	conn.Write([]byte{byte(rpcNomad)})
    22  	return NewClientCodec(conn)
    23  }
    24  
    25  func TestRPC_forwardLeader(t *testing.T) {
    26  	s1 := testServer(t, nil)
    27  	defer s1.Shutdown()
    28  	s2 := testServer(t, func(c *Config) {
    29  		c.DevDisableBootstrap = true
    30  	})
    31  	defer s2.Shutdown()
    32  	testJoin(t, s1, s2)
    33  	testutil.WaitForLeader(t, s1.RPC)
    34  	testutil.WaitForLeader(t, s2.RPC)
    35  
    36  	isLeader, remote := s1.getLeader()
    37  	if !isLeader && remote == nil {
    38  		t.Fatalf("missing leader")
    39  	}
    40  
    41  	if remote != nil {
    42  		var out struct{}
    43  		err := s1.forwardLeader(remote, "Status.Ping", struct{}{}, &out)
    44  		if err != nil {
    45  			t.Fatalf("err: %v", err)
    46  		}
    47  	}
    48  
    49  	isLeader, remote = s2.getLeader()
    50  	if !isLeader && remote == nil {
    51  		t.Fatalf("missing leader")
    52  	}
    53  
    54  	if remote != nil {
    55  		var out struct{}
    56  		err := s2.forwardLeader(remote, "Status.Ping", struct{}{}, &out)
    57  		if err != nil {
    58  			t.Fatalf("err: %v", err)
    59  		}
    60  	}
    61  }
    62  
    63  func TestRPC_forwardRegion(t *testing.T) {
    64  	s1 := testServer(t, nil)
    65  	defer s1.Shutdown()
    66  	s2 := testServer(t, func(c *Config) {
    67  		c.Region = "region2"
    68  	})
    69  	defer s2.Shutdown()
    70  	testJoin(t, s1, s2)
    71  	testutil.WaitForLeader(t, s1.RPC)
    72  	testutil.WaitForLeader(t, s2.RPC)
    73  
    74  	var out struct{}
    75  	err := s1.forwardRegion("region2", "Status.Ping", struct{}{}, &out)
    76  	if err != nil {
    77  		t.Fatalf("err: %v", err)
    78  	}
    79  
    80  	err = s2.forwardRegion("global", "Status.Ping", struct{}{}, &out)
    81  	if err != nil {
    82  		t.Fatalf("err: %v", err)
    83  	}
    84  }