Consul catalog provider

Fixes #176

provider/consul_catalog_test.go

@@ -0,0 +1,110 @@
+package provider
+
+import (
+	"reflect"
+	"testing"
+
+	"github.com/emilevauge/traefik/types"
+	"github.com/hashicorp/consul/api"
+)
+
+func TestConsulCatalogGetFrontendValue(t *testing.T) {
+	provider := &ConsulCatalog{
+		Domain: "localhost",
+	}
+
+	services := []struct {
+		service  string
+		expected string
+	}{
+		{
+			service:  "foo",
+			expected: "foo.localhost",
+		},
+	}
+
+	for _, e := range services {
+		actual := provider.getFrontendValue(e.service)
+		if actual != e.expected {
+			t.Fatalf("expected %q, got %q", e.expected, actual)
+		}
+	}
+}
+
+func TestConsulCatalogBuildConfig(t *testing.T) {
+	provider := &ConsulCatalog{
+		Domain: "localhost",
+	}
+
+	cases := []struct {
+		nodes             []catalogUpdate
+		expectedFrontends map[string]*types.Frontend
+		expectedBackends  map[string]*types.Backend
+	}{
+		{
+			nodes:             []catalogUpdate{},
+			expectedFrontends: map[string]*types.Frontend{},
+			expectedBackends:  map[string]*types.Backend{},
+		},
+		{
+			nodes: []catalogUpdate{
+				{
+					Service: "test",
+				},
+			},
+			expectedFrontends: map[string]*types.Frontend{},
+			expectedBackends:  map[string]*types.Backend{},
+		},
+		{
+			nodes: []catalogUpdate{
+				{
+					Service: "test",
+					Nodes: []*api.ServiceEntry{
+						{
+							Service: &api.AgentService{
+								Service: "test",
+								Port:    80,
+							},
+							Node: &api.Node{
+								Node:    "localhost",
+								Address: "127.0.0.1",
+							},
+						},
+					},
+				},
+			},
+			expectedFrontends: map[string]*types.Frontend{
+				"frontend-test": {
+					Backend: "backend-test",
+					Routes: map[string]types.Route{
+						"route-host-test": {
+							Rule:  "Host",
+							Value: "test.localhost",
+						},
+					},
+				},
+			},
+			expectedBackends: map[string]*types.Backend{
+				"backend-test": {
+					Servers: map[string]types.Server{
+						"server-localhost-80": {
+							URL: "http://127.0.0.1:80",
+						},
+					},
+					CircuitBreaker: nil,
+					LoadBalancer:   nil,
+				},
+			},
+		},
+	}
+
+	for _, c := range cases {
+		actualConfig := provider.buildConfig(c.nodes)
+		if !reflect.DeepEqual(actualConfig.Backends, c.expectedBackends) {
+			t.Fatalf("expected %#v, got %#v", c.expectedBackends, actualConfig.Backends)
+		}
+		if !reflect.DeepEqual(actualConfig.Frontends, c.expectedFrontends) {
+			t.Fatalf("expected %#v, got %#v", c.expectedFrontends, actualConfig.Frontends)
+		}
+	}
+}