Golang tests.RunServer函数代码示例

// Ensure that a leader can be set and read.
func TestModLeaderSet(t *testing.T) {
	tests.RunServer(func(s *server.Server) {
		// Set leader.
		body, status, err := testSetLeader(s, "foo", "xxx", 10)
		assert.NoError(t, err)
		assert.Equal(t, status, 200)
		assert.Equal(t, body, "2")

		// Check that the leader is set.
		body, status, err = testGetLeader(s, "foo")
		assert.NoError(t, err)
		assert.Equal(t, status, 200)
		assert.Equal(t, body, "xxx")

		// Delete leader.
		body, status, err = testDeleteLeader(s, "foo", "xxx")
		assert.NoError(t, err)
		assert.Equal(t, status, 200)
		assert.Equal(t, body, "")

		// Check that the leader is removed.
		body, status, err = testGetLeader(s, "foo")
		assert.NoError(t, err)
		assert.Equal(t, status, 200)
		assert.Equal(t, body, "")
	})
}

// Ensures a unique value is added to the key's children.
//
//   $ curl -X POST localhost:4001/v2/keys/foo/bar
//   $ curl -X POST localhost:4001/v2/keys/foo/bar
//   $ curl -X POST localhost:4001/v2/keys/foo/baz
//
func TestV2CreateUnique(t *testing.T) {
	tests.RunServer(func(s *server.Server) {
		// POST should add index to list.
		fullURL := fmt.Sprintf("%s%s", s.URL(), "/v2/keys/foo/bar")
		resp, _ := tests.PostForm(fullURL, nil)
		assert.Equal(t, resp.StatusCode, http.StatusCreated)
		body := tests.ReadBodyJSON(resp)
		assert.Equal(t, body["action"], "create", "")

		node := body["node"].(map[string]interface{})
		assert.Equal(t, node["key"], "/foo/bar/2", "")
		assert.Nil(t, node["dir"], "")
		assert.Equal(t, node["modifiedIndex"], 2, "")

		// Second POST should add next index to list.
		resp, _ = tests.PostForm(fullURL, nil)
		assert.Equal(t, resp.StatusCode, http.StatusCreated)
		body = tests.ReadBodyJSON(resp)

		node = body["node"].(map[string]interface{})
		assert.Equal(t, node["key"], "/foo/bar/3", "")

		// POST to a different key should add index to that list.
		resp, _ = tests.PostForm(fmt.Sprintf("%s%s", s.URL(), "/v2/keys/foo/baz"), nil)
		assert.Equal(t, resp.StatusCode, http.StatusCreated)
		body = tests.ReadBodyJSON(resp)

		node = body["node"].(map[string]interface{})
		assert.Equal(t, node["key"], "/foo/baz/4", "")
	})
}

// Ensure that a lock can be acquired with a value and released by value.
func TestModLockAcquireAndReleaseByValue(t *testing.T) {
	tests.RunServer(func(s *server.Server) {
		// Acquire lock.
		body, status, err := testAcquireLock(s, "foo", "XXX", 10)
		assert.NoError(t, err)
		assert.Equal(t, status, 200)
		assert.Equal(t, body, "2")

		// Check that we have the lock.
		body, status, err = testGetLockValue(s, "foo")
		assert.NoError(t, err)
		assert.Equal(t, status, 200)
		assert.Equal(t, body, "XXX")

		// Release lock.
		body, status, err = testReleaseLock(s, "foo", "", "XXX")
		assert.NoError(t, err)
		assert.Equal(t, status, 200)
		assert.Equal(t, body, "")

		// Check that we released the lock.
		body, status, err = testGetLockValue(s, "foo")
		assert.NoError(t, err)
		assert.Equal(t, status, 200)
		assert.Equal(t, body, "")
	})
}

// TestDiscoveryDownWithBackupPeers ensures that etcd runs if it is started with a
// bad discovery URL and a peer list.
func TestDiscoveryDownWithBackupPeers(t *testing.T) {
	etcdtest.RunServer(func(s *server.Server) {
		g := garbageHandler{t: t}
		ts := httptest.NewServer(&g)
		defer ts.Close()

		discover := ts.URL + "/v2/keys/_etcd/registry/1"
		u, ok := s.PeerURL("ETCDTEST")
		if !ok {
			t.Fatalf("Couldn't find the URL")
		}
		proc, err := startServer([]string{"-discovery", discover, "-peers", u})

		if err != nil {
			t.Fatal(err.Error())
		}
		defer stopServer(proc)

		client := http.Client{}
		err = assertServerFunctional(client, "http")
		if err != nil {
			t.Fatal(err.Error())
		}

		if !g.success {
			t.Fatal("Discovery server never called")
		}
	})
}

// Ensure that a leader can be renewed.
func TestModLeaderRenew(t *testing.T) {
	tests.RunServer(func(s *server.Server) {
		// Set leader.
		body, status, err := testSetLeader(s, "foo", "xxx", 2)
		assert.NoError(t, err)
		assert.Equal(t, status, 200)
		assert.Equal(t, body, "2")

		time.Sleep(1 * time.Second)

		// Renew leader.
		body, status, err = testSetLeader(s, "foo", "xxx", 3)
		assert.NoError(t, err)
		assert.Equal(t, status, 200)
		assert.Equal(t, body, "2")

		time.Sleep(2 * time.Second)

		// Check that the leader is set.
		body, status, err = testGetLeader(s, "foo")
		assert.NoError(t, err)
		assert.Equal(t, status, 200)
		assert.Equal(t, body, "xxx")
	})
}

// TestDiscoverySecondPeerFirstNoResponse ensures that if the first etcd
// machine stops after heartbeating that the second machine fails too.
func TestDiscoverySecondPeerFirstNoResponse(t *testing.T) {
	etcdtest.RunServer(func(s *server.Server) {
		v := url.Values{}
		v.Set("value", "started")
		resp, err := etcdtest.PutForm(fmt.Sprintf("%s%s", s.URL(), "/v2/keys/_etcd/registry/2/_state"), v)
		assert.Equal(t, resp.StatusCode, http.StatusCreated)

		v = url.Values{}
		v.Set("value", "http://127.0.0.1:49151")
		resp, err = etcdtest.PutForm(fmt.Sprintf("%s%s", s.URL(), "/v2/keys/_etcd/registry/2/ETCDTEST"), v)
		assert.Equal(t, resp.StatusCode, http.StatusCreated)

		proc, err := startServer([]string{"-retry-interval", "0.2", "-discovery", s.URL() + "/v2/keys/_etcd/registry/2"})
		if err != nil {
			t.Fatal(err.Error())
		}
		defer stopServer(proc)

		// TODO(bp): etcd will take 30 seconds to shutdown, figure this
		// out instead
		time.Sleep(1 * time.Second)

		client := http.Client{}
		_, err = client.Get("/")
		if err != nil && strings.Contains(err.Error(), "connection reset by peer") {
			t.Fatal(err.Error())
		}
	})
}

// Ensure that a lock can be acquired and another process is blocked until released.
func TestModLockBlockUntilAcquire(t *testing.T) {
	tests.RunServer(func(s *server.Server) {
		c := make(chan bool)

		// Acquire lock #1.
		go func() {
			body, status, err := testAcquireLock(s, "foo", "", 10)
			assert.NoError(t, err)
			assert.Equal(t, status, 200)
			assert.Equal(t, body, "2")
			c <- true
		}()
		<-c

		// Acquire lock #2.
		waiting := true
		go func() {
			c <- true
			body, status, err := testAcquireLock(s, "foo", "", 10)
			assert.NoError(t, err)
			assert.Equal(t, status, 200)
			assert.Equal(t, body, "4")
			waiting = false
		}()
		<-c

		time.Sleep(1 * time.Second)

		// Check that we have the lock #1.
		body, status, err := testGetLockIndex(s, "foo")
		assert.NoError(t, err)
		assert.Equal(t, status, 200)
		assert.Equal(t, body, "2")

		// Check that we are still waiting for lock #2.
		assert.Equal(t, waiting, true)

		// Release lock #1.
		_, status, err = testReleaseLock(s, "foo", "2", "")
		assert.NoError(t, err)
		assert.Equal(t, status, 200)

		// Check that we have lock #2.
		body, status, err = testGetLockIndex(s, "foo")
		assert.NoError(t, err)
		assert.Equal(t, status, 200)
		assert.Equal(t, body, "4")

		// Release lock #2.
		_, status, err = testReleaseLock(s, "foo", "4", "")
		assert.NoError(t, err)
		assert.Equal(t, status, 200)

		// Check that we have no lock.
		body, status, err = testGetLockIndex(s, "foo")
		assert.NoError(t, err)
		assert.Equal(t, status, 200)
		assert.Equal(t, body, "")
	})
}

// Ensures that a directory is created
//
//   $ curl -X PUT localhost:4001/v2/keys/foo/bar?dir=true
//
func TestV2SetDirectory(t *testing.T) {
	tests.RunServer(func(s *server.Server) {
		resp, err := tests.PutForm(fmt.Sprintf("%s%s", s.URL(), "/v2/keys/foo?dir=true"), url.Values{})
		assert.Equal(t, resp.StatusCode, http.StatusCreated)
		body := tests.ReadBody(resp)
		assert.Nil(t, err, "")
		assert.Equal(t, string(body), `{"action":"set","node":{"key":"/foo","dir":true,"modifiedIndex":2,"createdIndex":2}}`, "")
	})
}

// Ensures that a directory is deleted when recursive is set.
//
//   $ curl -X PUT localhost:4001/v2/keys/foo?dir=true
//   $ curl -X DELETE localhost:4001/v2/keys/foo?recursive=true
//
func TestV2DeleteDirectoryRecursiveImpliesDir(t *testing.T) {
	tests.RunServer(func(s *server.Server) {
		resp, err := tests.PutForm(fmt.Sprintf("%s%s", s.URL(), "/v2/keys/foo?dir=true"), url.Values{})
		tests.ReadBody(resp)
		resp, err = tests.DeleteForm(fmt.Sprintf("%s%s", s.URL(), "/v2/keys/foo?recursive=true"), url.Values{})
		assert.Equal(t, resp.StatusCode, http.StatusOK)
		body := tests.ReadBody(resp)
		assert.Nil(t, err, "")
		assert.Equal(t, string(body), `{"action":"delete","node":{"key":"/foo","dir":true,"modifiedIndex":3,"createdIndex":2},"prevNode":{"key":"/foo","dir":true,"modifiedIndex":2,"createdIndex":2}}`, "")
	})
}

// Ensures that a key is set to a given value.
//
//   $ curl -X PUT localhost:4001/v2/keys/foo/bar -d value=XXX
//
func TestV2SetKey(t *testing.T) {
	tests.RunServer(func(s *server.Server) {
		v := url.Values{}
		v.Set("value", "XXX")
		resp, err := tests.PutForm(fmt.Sprintf("%s%s", s.URL(), "/v2/keys/foo/bar"), v)
		assert.Equal(t, resp.StatusCode, http.StatusCreated)
		body := tests.ReadBody(resp)
		assert.Nil(t, err, "")
		assert.Equal(t, string(body), `{"action":"set","node":{"key":"/foo/bar","value":"XXX","modifiedIndex":2,"createdIndex":2}}`, "")
	})
}

// Ensures that an error is thrown if an invalid previous value is provided.
//
//   $ curl -X PUT localhost:4001/v2/keys/foo/bar -d value=XXX
//   $ curl -X DELETE localhost:4001/v2/keys/foo/bar?prevIndex=
//
func TestV2DeleteKeyCADWithInvalidValue(t *testing.T) {
	tests.RunServer(func(s *server.Server) {
		v := url.Values{}
		v.Set("value", "XXX")
		resp, _ := tests.PutForm(fmt.Sprintf("%s%s", s.URL(), "/v2/keys/foo/bar"), v)
		tests.ReadBody(resp)
		resp, _ = tests.DeleteForm(fmt.Sprintf("%s%s", s.URL(), "/v2/keys/foo/bar?prevValue="), v)
		body := tests.ReadBodyJSON(resp)
		assert.Equal(t, body["errorCode"], 201)
	})
}

// Ensures that a key is not deleted if the previous index does not match
//
//   $ curl -X PUT localhost:4001/v2/keys/foo -d value=XXX
//   $ curl -X DELETE localhost:4001/v2/keys/foo?prevIndex=100
//
func TestV2DeleteKeyCADOnIndexFail(t *testing.T) {
	tests.RunServer(func(s *server.Server) {
		v := url.Values{}
		v.Set("value", "XXX")
		resp, err := tests.PutForm(fmt.Sprintf("%s%s", s.URL(), "/v2/keys/foo"), v)
		tests.ReadBody(resp)
		resp, err = tests.DeleteForm(fmt.Sprintf("%s%s", s.URL(), "/v2/keys/foo?prevIndex=100"), url.Values{})
		assert.Nil(t, err, "")
		body := tests.ReadBodyJSON(resp)
		assert.Equal(t, body["errorCode"], 101)
	})
}

// Ensures that a key is conditionally set if it previously did not exist.
//
//   $ curl -X PUT localhost:4001/v2/keys/foo/bar -d value=XXX -d prevExist=false
//
func TestV2CreateKeySuccess(t *testing.T) {
	tests.RunServer(func(s *server.Server) {
		v := url.Values{}
		v.Set("value", "XXX")
		v.Set("prevExist", "false")
		resp, _ := tests.PutForm(fmt.Sprintf("%s%s", s.URL(), "/v2/keys/foo/bar"), v)
		assert.Equal(t, resp.StatusCode, http.StatusCreated)
		body := tests.ReadBodyJSON(resp)
		node := body["node"].(map[string]interface{})
		assert.Equal(t, node["value"], "XXX", "")
	})
}

// TestDiscoverySecondPeerUp ensures that a second peer joining a discovery
// cluster works.
func TestDiscoverySecondPeerUp(t *testing.T) {
	etcdtest.RunServer(func(s *server.Server) {
		v := url.Values{}
		v.Set("value", "started")
		resp, err := etcdtest.PutForm(fmt.Sprintf("%s%s", s.URL(), "/v2/keys/_etcd/registry/3/_state"), v)
		assert.Equal(t, resp.StatusCode, http.StatusCreated)

		u, ok := s.PeerURL("ETCDTEST")
		if !ok {
			t.Fatalf("Couldn't find the URL")
		}

		wc := goetcd.NewClient([]string{s.URL()})
		testResp, err := wc.Set("test", "0", 0)

		if err != nil {
			t.Fatalf("Couldn't set a test key on the leader %v", err)
		}

		v = url.Values{}
		v.Set("value", u)
		resp, err = etcdtest.PutForm(fmt.Sprintf("%s%s", s.URL(), "/v2/keys/_etcd/registry/3/ETCDTEST"), v)
		assert.Equal(t, resp.StatusCode, http.StatusCreated)

		proc, err := startServer([]string{"-discovery", s.URL() + "/v2/keys/_etcd/registry/3"})
		if err != nil {
			t.Fatal(err.Error())
		}
		defer stopServer(proc)

		watch := fmt.Sprintf("%s%s%d", s.URL(), "/v2/keys/_etcd/registry/3/node1?wait=true&waitIndex=", testResp.EtcdIndex)
		resp, err = http.Get(watch)
		if err != nil {
			t.Fatal(err.Error())
		}

		// TODO(bp): need to have a better way of knowing a machine is up
		for i := 0; i < 10; i++ {
			time.Sleep(1 * time.Second)

			etcdc := goetcd.NewClient(nil)
			_, err = etcdc.Set("foobar", "baz", 0)
			if err == nil {
				break
			}
		}

		if err != nil {
			t.Fatal(err.Error())
		}
	})
}

// Ensures that an invalid time-to-live is returned as an error.
//
//   $ curl -X PUT localhost:4001/v2/keys/foo/bar -d value=XXX -d ttl=bad_ttl
//
func TestV2SetKeyWithBadTTL(t *testing.T) {
	tests.RunServer(func(s *server.Server) {
		v := url.Values{}
		v.Set("value", "XXX")
		v.Set("ttl", "bad_ttl")
		resp, _ := tests.PutForm(fmt.Sprintf("%s%s", s.URL(), "/v2/keys/foo/bar"), v)
		assert.Equal(t, resp.StatusCode, http.StatusBadRequest)
		body := tests.ReadBodyJSON(resp)
		assert.Equal(t, body["errorCode"], 202, "")
		assert.Equal(t, body["message"], "The given TTL in POST form is not a number", "")
		assert.Equal(t, body["cause"], "Update", "")
	})
}