integration: test embedded etcd

integration/embed_test.go

@@ -0,0 +1,103 @@
+// Copyright 2016 The etcd Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package integration
+
+import (
+	"fmt"
+	"net/url"
+	"os"
+	"path"
+	"strings"
+	"testing"
+
+	"github.com/coreos/etcd/embed"
+)
+
+func TestEmbedEtcd(t *testing.T) {
+	tests := []struct {
+		cfg embed.Config
+
+		werr     string
+		wpeers   int
+		wclients int
+	}{
+		{werr: "multiple discovery"},
+		{werr: "advertise-client-urls is required"},
+		{werr: "should be at least"},
+		{werr: "is too long"},
+		{wpeers: 1, wclients: 1},
+		{wpeers: 2, wclients: 1},
+		{wpeers: 1, wclients: 2},
+	}
+
+	// 4000x so no conflict with e2e tests
+	url1, _ := url.Parse("http://localhost:40000")
+	url2, _ := url.Parse("http://localhost:40001")
+	url3, _ := url.Parse("http://localhost:40002")
+
+	// setup defaults
+	for i := range tests {
+		tests[i].cfg = *embed.NewConfig()
+	}
+
+	tests[0].cfg.Durl = "abc"
+	setupEmbedCfg(&tests[1].cfg, []url.URL{*url1}, []url.URL{*url2})
+	tests[1].cfg.ACUrls = nil
+	tests[2].cfg.TickMs = tests[2].cfg.ElectionMs - 1
+	tests[3].cfg.ElectionMs = 999999
+	setupEmbedCfg(&tests[4].cfg, []url.URL{*url1}, []url.URL{*url2})
+	setupEmbedCfg(&tests[5].cfg, []url.URL{*url1}, []url.URL{*url2, *url3})
+	setupEmbedCfg(&tests[6].cfg, []url.URL{*url1, *url2}, []url.URL{*url3})
+
+	dir := path.Join(os.TempDir(), fmt.Sprintf("embed-etcd"))
+	os.RemoveAll(dir)
+	defer os.RemoveAll(dir)
+
+	for i, tt := range tests {
+		tests[i].cfg.Dir = dir
+		e, err := embed.StartEtcd(&tests[i].cfg)
+		if tt.werr != "" {
+			if err == nil || !strings.Contains(err.Error(), tt.werr) {
+				t.Errorf("%d: expected error with %q, got %v", i, tt.werr, err)
+			}
+			if e != nil {
+				e.Close()
+			}
+			continue
+		}
+		if err != nil {
+			t.Errorf("%d: expected success, got error %v", i, err)
+			continue
+		}
+		if len(e.Peers) != tt.wpeers {
+			t.Errorf("%d: expected %d peers, got %d", i, tt.wpeers, len(e.Peers))
+		}
+		if len(e.Clients) != tt.wclients {
+			t.Errorf("%d: expected %d peers, got %d", i, tt.wclients, len(e.Clients))
+		}
+		e.Close()
+	}
+}
+
+func setupEmbedCfg(cfg *embed.Config, curls []url.URL, purls []url.URL) {
+	cfg.ClusterState = "new"
+	cfg.LCUrls, cfg.ACUrls = curls, curls
+	cfg.LPUrls, cfg.APUrls = purls, purls
+	cfg.InitialCluster = ""
+	for i := range purls {
+		cfg.InitialCluster += ",default=" + purls[i].String()
+	}
+	cfg.InitialCluster = cfg.InitialCluster[1:]
+}