github.com/ryanslade/nomad@v0.2.4-0.20160128061903-fc95782f2089/nomad/server_test.go (about)

     1  package nomad
     2  
     3  import (
     4  	"fmt"
     5  	"io/ioutil"
     6  	"net"
     7  	"sync/atomic"
     8  	"testing"
     9  	"time"
    10  
    11  	"github.com/hashicorp/nomad/testutil"
    12  )
    13  
    14  var nextPort uint32 = 15000
    15  
    16  func getPort() int {
    17  	return int(atomic.AddUint32(&nextPort, 1))
    18  }
    19  
    20  func tmpDir(t *testing.T) string {
    21  	dir, err := ioutil.TempDir("", "nomad")
    22  	if err != nil {
    23  		t.Fatalf("err: %v", err)
    24  	}
    25  	return dir
    26  }
    27  
    28  func testServer(t *testing.T, cb func(*Config)) *Server {
    29  	// Setup the default settings
    30  	config := DefaultConfig()
    31  	config.Build = "unittest"
    32  	config.DevMode = true
    33  	config.RPCAddr = &net.TCPAddr{
    34  		IP:   []byte{127, 0, 0, 1},
    35  		Port: getPort(),
    36  	}
    37  	config.NodeName = fmt.Sprintf("Node %d", config.RPCAddr.Port)
    38  
    39  	// Tighten the Serf timing
    40  	config.SerfConfig.MemberlistConfig.BindAddr = "127.0.0.1"
    41  	config.SerfConfig.MemberlistConfig.BindPort = getPort()
    42  	config.SerfConfig.MemberlistConfig.SuspicionMult = 2
    43  	config.SerfConfig.MemberlistConfig.RetransmitMult = 2
    44  	config.SerfConfig.MemberlistConfig.ProbeTimeout = 50 * time.Millisecond
    45  	config.SerfConfig.MemberlistConfig.ProbeInterval = 100 * time.Millisecond
    46  	config.SerfConfig.MemberlistConfig.GossipInterval = 100 * time.Millisecond
    47  
    48  	// Tighten the Raft timing
    49  	config.RaftConfig.LeaderLeaseTimeout = 50 * time.Millisecond
    50  	config.RaftConfig.HeartbeatTimeout = 50 * time.Millisecond
    51  	config.RaftConfig.ElectionTimeout = 50 * time.Millisecond
    52  	config.RaftTimeout = 500 * time.Millisecond
    53  
    54  	// Invoke the callback if any
    55  	if cb != nil {
    56  		cb(config)
    57  	}
    58  
    59  	// Enable raft as leader if we have bootstrap on
    60  	config.RaftConfig.StartAsLeader = !config.DevDisableBootstrap
    61  
    62  	// Create server
    63  	server, err := NewServer(config)
    64  	if err != nil {
    65  		t.Fatalf("err: %v", err)
    66  	}
    67  	return server
    68  }
    69  
    70  func testJoin(t *testing.T, s1 *Server, other ...*Server) {
    71  	addr := fmt.Sprintf("127.0.0.1:%d",
    72  		s1.config.SerfConfig.MemberlistConfig.BindPort)
    73  	for _, s2 := range other {
    74  		if num, err := s2.Join([]string{addr}); err != nil {
    75  			t.Fatalf("err: %v", err)
    76  		} else if num != 1 {
    77  			t.Fatalf("bad: %d", num)
    78  		}
    79  	}
    80  }
    81  
    82  func TestServer_RPC(t *testing.T) {
    83  	s1 := testServer(t, nil)
    84  	defer s1.Shutdown()
    85  
    86  	var out struct{}
    87  	if err := s1.RPC("Status.Ping", struct{}{}, &out); err != nil {
    88  		t.Fatalf("err: %v", err)
    89  	}
    90  }
    91  
    92  func TestServer_Regions(t *testing.T) {
    93  	// Make the servers
    94  	s1 := testServer(t, func(c *Config) {
    95  		c.Region = "region1"
    96  	})
    97  	defer s1.Shutdown()
    98  
    99  	s2 := testServer(t, func(c *Config) {
   100  		c.Region = "region2"
   101  	})
   102  	defer s2.Shutdown()
   103  
   104  	// Join them together
   105  	s2Addr := fmt.Sprintf("127.0.0.1:%d",
   106  		s2.config.SerfConfig.MemberlistConfig.BindPort)
   107  	if n, err := s1.Join([]string{s2Addr}); err != nil || n != 1 {
   108  		t.Fatalf("Failed joining: %v (%d joined)", err, n)
   109  	}
   110  
   111  	// Try listing the regions
   112  	testutil.WaitForResult(func() (bool, error) {
   113  		out := s1.Regions()
   114  		if len(out) != 2 || out[0] != "region1" || out[1] != "region2" {
   115  			return false, fmt.Errorf("unexpected regions: %v", out)
   116  		}
   117  		return true, nil
   118  	}, func(err error) {
   119  		t.Fatalf("err: %v", err)
   120  	})
   121  }