package daemon
 
 import (
 	"testing"
 	"time"
 )
 
 func TestDiscoveryOpts(t *testing.T) {
 	clusterOpts := map[string]string{"discovery.heartbeat": "10", "discovery.ttl": "5"}
 	heartbeat, ttl, err := discoveryOpts(clusterOpts)
 	if err == nil {
 		t.Fatalf("discovery.ttl < discovery.heartbeat must fail")
 	}
 
 	clusterOpts = map[string]string{"discovery.heartbeat": "10", "discovery.ttl": "10"}
 	heartbeat, ttl, err = discoveryOpts(clusterOpts)
 	if err == nil {
 		t.Fatalf("discovery.ttl == discovery.heartbeat must fail")
 	}
 
 	clusterOpts = map[string]string{"discovery.heartbeat": "invalid"}
 	heartbeat, ttl, err = discoveryOpts(clusterOpts)
 	if err == nil {
 		t.Fatalf("invalid discovery.heartbeat must fail")
 	}
 
 	clusterOpts = map[string]string{"discovery.ttl": "invalid"}
 	heartbeat, ttl, err = discoveryOpts(clusterOpts)
 	if err == nil {
 		t.Fatalf("invalid discovery.ttl must fail")
 	}
 
 	clusterOpts = map[string]string{"discovery.heartbeat": "10", "discovery.ttl": "20"}
 	heartbeat, ttl, err = discoveryOpts(clusterOpts)
 	if err != nil {
 		t.Fatal(err)
 	}
 
 	if heartbeat != 10*time.Second {
 		t.Fatalf("Heatbeat - Expected : %v, Actual : %v", 10*time.Second, heartbeat)
 	}
 
 	if ttl != 20*time.Second {
 		t.Fatalf("TTL - Expected : %v, Actual : %v", 20*time.Second, ttl)
 	}
 
 	clusterOpts = map[string]string{"discovery.heartbeat": "10"}
 	heartbeat, ttl, err = discoveryOpts(clusterOpts)
 	if err != nil {
 		t.Fatal(err)
 	}
 
 	if heartbeat != 10*time.Second {
 		t.Fatalf("Heatbeat - Expected : %v, Actual : %v", 10*time.Second, heartbeat)
 	}
 
 	expected := 10 * defaultDiscoveryTTLFactor * time.Second
 	if ttl != expected {
 		t.Fatalf("TTL - Expected : %v, Actual : %v", expected, ttl)
 	}
 
 	clusterOpts = map[string]string{"discovery.ttl": "30"}
 	heartbeat, ttl, err = discoveryOpts(clusterOpts)
 	if err != nil {
 		t.Fatal(err)
 	}
 
 	if ttl != 30*time.Second {
 		t.Fatalf("TTL - Expected : %v, Actual : %v", 30*time.Second, ttl)
 	}
 
 	expected = 30 * time.Second / defaultDiscoveryTTLFactor
 	if heartbeat != expected {
 		t.Fatalf("Heatbeat - Expected : %v, Actual : %v", expected, heartbeat)
 	}
 
 	clusterOpts = map[string]string{}
 	heartbeat, ttl, err = discoveryOpts(clusterOpts)
 	if err != nil {
 		t.Fatal(err)
 	}
 
 	if heartbeat != defaultDiscoveryHeartbeat {
 		t.Fatalf("Heatbeat - Expected : %v, Actual : %v", defaultDiscoveryHeartbeat, heartbeat)
 	}
 
 	expected = defaultDiscoveryHeartbeat * defaultDiscoveryTTLFactor
 	if ttl != expected {
 		t.Fatalf("TTL - Expected : %v, Actual : %v", expected, ttl)
 	}
 }

 
 func TestModifiedDiscoverySettings(t *testing.T) {
 	cases := []struct {
 		current  *Config
 		modified *Config
 		expected bool
 	}{
 		{
 			current:  discoveryConfig("foo", "bar", map[string]string{}),
 			modified: discoveryConfig("foo", "bar", map[string]string{}),
 			expected: false,
 		},
 		{
 			current:  discoveryConfig("foo", "bar", map[string]string{"foo": "bar"}),
 			modified: discoveryConfig("foo", "bar", map[string]string{"foo": "bar"}),
 			expected: false,
 		},
 		{
 			current:  discoveryConfig("foo", "bar", map[string]string{}),
 			modified: discoveryConfig("foo", "bar", nil),
 			expected: false,
 		},
 		{
 			current:  discoveryConfig("foo", "bar", nil),
 			modified: discoveryConfig("foo", "bar", map[string]string{}),
 			expected: false,
 		},
 		{
 			current:  discoveryConfig("foo", "bar", nil),
 			modified: discoveryConfig("baz", "bar", nil),
 			expected: true,
 		},
 		{
 			current:  discoveryConfig("foo", "bar", nil),
 			modified: discoveryConfig("foo", "baz", nil),
 			expected: true,
 		},
 		{
 			current:  discoveryConfig("foo", "bar", nil),
 			modified: discoveryConfig("foo", "bar", map[string]string{"foo": "bar"}),
 			expected: true,
 		},
 	}
 
 	for _, c := range cases {
 		got := modifiedDiscoverySettings(c.current, c.modified.ClusterStore, c.modified.ClusterAdvertise, c.modified.ClusterOpts)
 		if c.expected != got {

 			t.Fatalf("expected %v, got %v: current config %v, new config %v", c.expected, got, c.current, c.modified)

 		}
 	}
 }
 
 func discoveryConfig(backendAddr, advertiseAddr string, opts map[string]string) *Config {
 	return &Config{
 		CommonConfig: CommonConfig{
 			ClusterStore:     backendAddr,
 			ClusterAdvertise: advertiseAddr,
 			ClusterOpts:      opts,
 		},
 	}
 }