Golang tests.Get函数代码示例

// Ensure that the cluster configuration can be reloaded.
func TestClusterConfigReload(t *testing.T) {
	procAttr := &os.ProcAttr{Files: []*os.File{nil, os.Stdout, os.Stderr}}
	argGroup, etcds, err := CreateCluster(3, procAttr, false)
	assert.NoError(t, err)
	defer DestroyCluster(etcds)

	resp, _ := tests.Put("http://localhost:7001/v2/admin/config", "application/json", bytes.NewBufferString(`{"activeSize":3, "removeDelay":60}`))
	assert.Equal(t, resp.StatusCode, 200)

	time.Sleep(1 * time.Second)

	resp, _ = tests.Get("http://localhost:7002/v2/admin/config")
	body := tests.ReadBodyJSON(resp)
	assert.Equal(t, resp.StatusCode, 200)
	assert.Equal(t, body["activeSize"], 3)
	assert.Equal(t, body["removeDelay"], 60)

	// kill all
	DestroyCluster(etcds)

	for i := 0; i < 3; i++ {
		etcds[i], err = os.StartProcess(EtcdBinPath, argGroup[i], procAttr)
	}

	time.Sleep(1 * time.Second)

	resp, _ = tests.Get("http://localhost:7002/v2/admin/config")
	body = tests.ReadBodyJSON(resp)
	assert.Equal(t, resp.StatusCode, 200)
	assert.Equal(t, body["activeSize"], 3)
	assert.Equal(t, body["removeDelay"], 60)
}

// Ensure that we can start a v2 cluster from the logs of a v1 cluster.
func TestV1ClusterMigration(t *testing.T) {
	path, _ := ioutil.TempDir("", "etcd-")
	os.RemoveAll(path)
	defer os.RemoveAll(path)

	nodes := []string{"node0", "node2"}
	for i, node := range nodes {
		nodepath := filepath.Join(path, node)
		fixturepath, _ := filepath.Abs(filepath.Join("../fixtures/v1.cluster/", node))
		fmt.Println("FIXPATH  =", fixturepath)
		fmt.Println("NODEPATH =", nodepath)
		os.MkdirAll(filepath.Dir(nodepath), 0777)

		// Copy over fixture files.
		c := exec.Command("cp", "-rf", fixturepath, nodepath)
		if out, err := c.CombinedOutput(); err != nil {
			fmt.Println(">>>>>>\n", string(out), "<<<<<<")
			panic("Fixture initialization error:" + err.Error())
		}

		procAttr := new(os.ProcAttr)
		procAttr.Files = []*os.File{nil, os.Stdout, os.Stderr}

		args := []string{"etcd", fmt.Sprintf("-data-dir=%s", nodepath)}
		args = append(args, "-addr", fmt.Sprintf("127.0.0.1:%d", 4001+i))
		args = append(args, "-peer-addr", fmt.Sprintf("127.0.0.1:%d", 7001+i))
		args = append(args, "-name", node)
		process, err := os.StartProcess(EtcdBinPath, args, procAttr)
		if err != nil {
			t.Fatal("start process failed:" + err.Error())
			return
		}
		defer process.Kill()
		time.Sleep(time.Second)
	}

	// Ensure deleted message is removed.
	resp, err := tests.Get("http://localhost:4001/v2/keys/message")
	body := tests.ReadBody(resp)
	assert.Nil(t, err, "")
	assert.Equal(t, resp.StatusCode, http.StatusNotFound)
	assert.Equal(t, string(body), `{"errorCode":100,"message":"Key not found","cause":"/message","index":11}`+"\n")

	// Ensure TTL'd message is removed.
	resp, err = tests.Get("http://localhost:4001/v2/keys/foo")
	body = tests.ReadBody(resp)
	assert.Nil(t, err, "")
	assert.Equal(t, resp.StatusCode, 200, "")
	assert.Equal(t, string(body), `{"action":"get","node":{"key":"/foo","value":"one","modifiedIndex":9,"createdIndex":9}}`)
}

// Ensures that a directory of values can be recursively retrieved for a given key.
//
//   $ curl -X PUT localhost:4001/v2/keys/foo/x -d value=XXX
//   $ curl -X PUT localhost:4001/v2/keys/foo/y/z -d value=YYY
//   $ curl localhost:4001/v2/keys/foo -d recursive=true
//
func TestV2GetKeyRecursively(t *testing.T) {
	tests.RunServer(func(s *server.Server) {
		v := url.Values{}
		v.Set("value", "XXX")
		v.Set("ttl", "10")
		resp, _ := tests.PutForm(fmt.Sprintf("http://%s%s", s.URL(), "/v2/keys/foo/x"), v)
		tests.ReadBody(resp)

		v.Set("value", "YYY")
		resp, _ = tests.PutForm(fmt.Sprintf("http://%s%s", s.URL(), "/v2/keys/foo/y/z"), v)
		tests.ReadBody(resp)

		resp, _ = tests.Get(fmt.Sprintf("http://%s%s", s.URL(), "/v2/keys/foo?recursive=true"))
		body := tests.ReadBodyJSON(resp)
		assert.Equal(t, body["action"], "get", "")
		assert.Equal(t, body["key"], "/foo", "")
		assert.Equal(t, body["dir"], true, "")
		assert.Equal(t, body["modifiedIndex"], 1, "")
		assert.Equal(t, len(body["kvs"].([]interface{})), 2, "")

		kv0 := body["kvs"].([]interface{})[0].(map[string]interface{})
		assert.Equal(t, kv0["key"], "/foo/x", "")
		assert.Equal(t, kv0["value"], "XXX", "")
		assert.Equal(t, kv0["ttl"], 10, "")

		kv1 := body["kvs"].([]interface{})[1].(map[string]interface{})
		assert.Equal(t, kv1["key"], "/foo/y", "")
		assert.Equal(t, kv1["dir"], true, "")

		kvs2 := kv1["kvs"].([]interface{})[0].(map[string]interface{})
		assert.Equal(t, kvs2["key"], "/foo/y/z", "")
		assert.Equal(t, kvs2["value"], "YYY", "")
	})
}

// Ensures that a directory of values can be retrieved for a given key.
//
//   $ curl -X PUT localhost:4001/v1/keys/foo/x -d value=XXX
//   $ curl -X PUT localhost:4001/v1/keys/foo/y/z -d value=YYY
//   $ curl localhost:4001/v1/keys/foo
//
func TestV1GetKeyDir(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(), "/v1/keys/foo/x"), v)
		tests.ReadBody(resp)

		v.Set("value", "YYY")
		resp, _ = tests.PutForm(fmt.Sprintf("%s%s", s.URL(), "/v1/keys/foo/y/z"), v)
		tests.ReadBody(resp)

		resp, _ = tests.Get(fmt.Sprintf("%s%s", s.URL(), "/v1/keys/foo"))
		assert.Equal(t, resp.StatusCode, http.StatusOK)
		body := tests.ReadBody(resp)
		nodes := make([]interface{}, 0)
		if err := json.Unmarshal(body, &nodes); err != nil {
			panic(fmt.Sprintf("HTTP body JSON parse error: %v", err))
		}
		assert.Equal(t, len(nodes), 2, "")

		node0 := nodes[0].(map[string]interface{})
		assert.Equal(t, node0["action"], "get", "")
		assert.Equal(t, node0["key"], "/foo/x", "")
		assert.Equal(t, node0["value"], "XXX", "")

		node1 := nodes[1].(map[string]interface{})
		assert.Equal(t, node1["action"], "get", "")
		assert.Equal(t, node1["key"], "/foo/y", "")
		assert.Equal(t, node1["dir"], true, "")
	})
}

// Ensures that HEAD works.
//
//   $ curl -I localhost:4001/v1/keys/foo/bar -> fail
//   $ curl -X PUT localhost:4001/v1/keys/foo/bar -d value=XXX
//   $ curl -I localhost:4001/v1/keys/foo/bar
//
func TestV1HeadKey(t *testing.T) {
	tests.RunServer(func(s *server.Server) {
		v := url.Values{}
		v.Set("value", "XXX")
		fullURL := fmt.Sprintf("%s%s", s.URL(), "/v1/keys/foo/bar")
		resp, _ := tests.Get(fullURL)
		assert.Equal(t, resp.StatusCode, http.StatusNotFound)
		assert.Equal(t, resp.ContentLength, -1)

		resp, _ = tests.PutForm(fullURL, v)
		tests.ReadBody(resp)

		resp, _ = tests.Get(fullURL)
		assert.Equal(t, resp.StatusCode, http.StatusOK)
		assert.Equal(t, resp.ContentLength, -1)
	})
}

// Ensures that a watcher can wait for a value to be set and return it to the client.
//
//   $ curl localhost:4001/v2/keys/foo/bar?wait=true
//   $ curl -X PUT localhost:4001/v2/keys/foo/bar -d value=XXX
//
func TestV2WatchKey(t *testing.T) {
	tests.RunServer(func(s *server.Server) {
		// There exists a little gap between etcd ready to serve and
		// it actually serves the first request, which means the response
		// delay could be a little bigger.
		// This test is time sensitive, so it does one request to ensure
		// that the server is working.
		tests.Get(fmt.Sprintf("%s%s", s.URL(), "/v2/keys/foo/bar"))

		var watchResp *http.Response
		c := make(chan bool)
		go func() {
			watchResp, _ = tests.Get(fmt.Sprintf("%s%s", s.URL(), "/v2/keys/foo/bar?wait=true"))
			c <- true
		}()

		// Make sure response didn't fire early.
		time.Sleep(1 * time.Millisecond)

		// Set a value.
		v := url.Values{}
		v.Set("value", "XXX")
		resp, _ := tests.PutForm(fmt.Sprintf("%s%s", s.URL(), "/v2/keys/foo/bar"), v)
		tests.ReadBody(resp)

		// A response should follow from the GET above.
		time.Sleep(1 * time.Millisecond)

		select {
		case <-c:

		default:
			t.Fatal("cannot get watch result")
		}

		body := tests.ReadBodyJSON(watchResp)
		assert.NotNil(t, body, "")
		assert.Equal(t, body["action"], "set", "")

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

// Ensures that a value can be retrieve for a given key.
//
//   $ curl localhost:4001/v1/keys/foo/bar -> fail
//   $ curl -X PUT localhost:4001/v1/keys/foo/bar -d value=XXX
//   $ curl localhost:4001/v1/keys/foo/bar
//
func TestV1GetKey(t *testing.T) {
	tests.RunServer(func(s *server.Server) {
		v := url.Values{}
		v.Set("value", "XXX")
		fullURL := fmt.Sprintf("%s%s", s.URL(), "/v1/keys/foo/bar")
		resp, _ := tests.Get(fullURL)
		assert.Equal(t, resp.StatusCode, http.StatusNotFound)

		resp, _ = tests.PutForm(fullURL, v)
		tests.ReadBody(resp)

		resp, _ = tests.Get(fullURL)
		assert.Equal(t, resp.StatusCode, http.StatusOK)
		body := tests.ReadBodyJSON(resp)
		assert.Equal(t, body["action"], "get", "")
		assert.Equal(t, body["key"], "/foo/bar", "")
		assert.Equal(t, body["value"], "XXX", "")
		assert.Equal(t, body["index"], 2, "")
	})
}

// Ensures that a value can be retrieve for a given key.
//
//   $ curl localhost:4001/v2/keys/foo/bar -> fail
//   $ curl -X PUT localhost:4001/v2/keys/foo/bar -d value=XXX
//   $ curl localhost:4001/v2/keys/foo/bar
//
func TestV2GetKey(t *testing.T) {
	tests.RunServer(func(s *server.Server) {
		v := url.Values{}
		v.Set("value", "XXX")
		fullURL := fmt.Sprintf("%s%s", s.URL(), "/v2/keys/foo/bar")
		resp, _ := tests.Get(fullURL)
		assert.Equal(t, resp.StatusCode, http.StatusNotFound)

		resp, _ = tests.PutForm(fullURL, v)
		tests.ReadBody(resp)

		resp, _ = tests.Get(fullURL)
		assert.Equal(t, resp.StatusCode, http.StatusOK)
		body := tests.ReadBodyJSON(resp)
		assert.Equal(t, body["action"], "get", "")
		node := body["node"].(map[string]interface{})
		assert.Equal(t, node["key"], "/foo/bar", "")
		assert.Equal(t, node["value"], "XXX", "")
		assert.Equal(t, node["modifiedIndex"], 3, "")
	})
}

// Ensures that a value can be retrieve for a given key.
//
//   $ curl -X PUT localhost:4001/v2/keys/foo/bar -d value=XXX
//   $ curl localhost:4001/v2/keys/foo/bar
//
func TestV2GetKey(t *testing.T) {
	tests.RunServer(func(s *server.Server) {
		v := url.Values{}
		v.Set("value", "XXX")
		resp, _ := tests.PutForm(fmt.Sprintf("http://%s%s", s.URL(), "/v2/keys/foo/bar"), v)
		tests.ReadBody(resp)
		resp, _ = tests.Get(fmt.Sprintf("http://%s%s", s.URL(), "/v2/keys/foo/bar"))
		body := tests.ReadBodyJSON(resp)
		assert.Equal(t, body["action"], "get", "")
		assert.Equal(t, body["key"], "/foo/bar", "")
		assert.Equal(t, body["value"], "XXX", "")
		assert.Equal(t, body["modifiedIndex"], 1, "")
	})
}

// Ensures that a watcher can wait for a value to be set after a given index.
//
//   $ curl localhost:4001/v2/keys/foo/bar?wait=true&waitIndex=4
//   $ curl -X PUT localhost:4001/v2/keys/foo/bar -d value=XXX
//   $ curl -X PUT localhost:4001/v2/keys/foo/bar -d value=YYY
//
func TestV2WatchKeyWithIndex(t *testing.T) {
	tests.RunServer(func(s *server.Server) {
		var body map[string]interface{}
		c := make(chan bool)
		go func() {
			resp, _ := tests.Get(fmt.Sprintf("%s%s", s.URL(), "/v2/keys/foo/bar?wait=true&waitIndex=3"))
			body = tests.ReadBodyJSON(resp)
			c <- true
		}()

		// Make sure response didn't fire early.
		time.Sleep(1 * time.Millisecond)
		assert.Nil(t, body, "")

		// Set a value (before given index).
		v := url.Values{}
		v.Set("value", "XXX")
		resp, _ := tests.PutForm(fmt.Sprintf("%s%s", s.URL(), "/v2/keys/foo/bar"), v)
		tests.ReadBody(resp)

		// Make sure response didn't fire early.
		time.Sleep(1 * time.Millisecond)
		assert.Nil(t, body, "")

		// Set a value (before given index).
		v.Set("value", "YYY")
		resp, _ = tests.PutForm(fmt.Sprintf("%s%s", s.URL(), "/v2/keys/foo/bar"), v)
		tests.ReadBody(resp)

		// A response should follow from the GET above.
		time.Sleep(1 * time.Millisecond)

		select {
		case <-c:

		default:
			t.Fatal("cannot get watch result")
		}

		assert.NotNil(t, body, "")
		assert.Equal(t, body["action"], "set", "")

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

// Ensure that the cluster configuration can be updated.
func TestClusterConfigSet(t *testing.T) {
	_, etcds, err := CreateCluster(3, &os.ProcAttr{Files: []*os.File{nil, os.Stdout, os.Stderr}}, false)
	assert.NoError(t, err)
	defer DestroyCluster(etcds)

	resp, _ := tests.Put("http://localhost:7001/v2/admin/config", "application/json", bytes.NewBufferString(`{"activeSize":3, "removeDelay":60}`))
	assert.Equal(t, resp.StatusCode, 200)

	time.Sleep(1 * time.Second)

	resp, _ = tests.Get("http://localhost:7002/v2/admin/config")
	body := tests.ReadBodyJSON(resp)
	assert.Equal(t, resp.StatusCode, 200)
	assert.Equal(t, body["activeSize"], 3)
	assert.Equal(t, body["removeDelay"], 60)
}

// TestGetMachines tests '/v2/admin/machines' sends back messages of all machines.
func TestGetMachines(t *testing.T) {
	_, etcds, err := CreateCluster(3, &os.ProcAttr{Files: []*os.File{nil, os.Stdout, os.Stderr}}, false)
	assert.NoError(t, err)
	defer DestroyCluster(etcds)

	time.Sleep(1 * time.Second)

	resp, err := tests.Get("http://localhost:7001/v2/admin/machines")
	if !assert.Equal(t, err, nil) {
		t.FailNow()
	}
	assert.Equal(t, resp.StatusCode, 200)
	machines := make([]map[string]interface{}, 0)
	b := tests.ReadBody(resp)
	json.Unmarshal(b, &machines)
	assert.Equal(t, len(machines), 3)
	if machines[0]["state"] != "leader" && machines[1]["state"] != "leader" && machines[2]["state"] != "leader" {
		t.Errorf("no leader in the cluster")
	}
}

// Ensures that a watcher can wait for a value to be set after a given index.
//
//   $ curl localhost:4001/v2/keys/keyindir/bar?wait=true
//   $ curl -X PUT localhost:4001/v2/keys/keyindir -d dir=true -d ttl=1
//   $ curl -X PUT localhost:4001/v2/keys/keyindir/bar -d value=YYY
//
func TestV2WatchKeyInDir(t *testing.T) {
	tests.RunServer(func(s *server.Server) {
		var body map[string]interface{}
		c := make(chan bool)

		// Set a value (before given index).
		v := url.Values{}
		v.Set("dir", "true")
		v.Set("ttl", "1")
		resp, _ := tests.PutForm(fmt.Sprintf("%s%s", s.URL(), "/v2/keys/keyindir"), v)
		tests.ReadBody(resp)

		// Set a value (before given index).
		v = url.Values{}
		v.Set("value", "XXX")
		resp, _ = tests.PutForm(fmt.Sprintf("%s%s", s.URL(), "/v2/keys/keyindir/bar"), v)
		tests.ReadBody(resp)

		go func() {
			resp, _ := tests.Get(fmt.Sprintf("%s%s", s.URL(), "/v2/keys/keyindir/bar?wait=true"))
			body = tests.ReadBodyJSON(resp)
			c <- true
		}()

		// wait for expiration, we do have a up to 500 millisecond delay
		time.Sleep(1500 * time.Millisecond)

		select {
		case <-c:

		default:
			t.Fatal("cannot get watch result")
		}

		assert.NotNil(t, body, "")
		assert.Equal(t, body["action"], "expire", "")

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

// Ensures that a watcher can wait for a value to be set and return it to the client.
//
//   $ curl localhost:4001/v1/watch/foo/bar
//   $ curl -X PUT localhost:4001/v1/keys/foo/bar -d value=XXX
//
func TestV1WatchKey(t *testing.T) {
	tests.RunServer(func(s *server.Server) {
		var body map[string]interface{}
		c := make(chan bool)
		go func() {
			resp, _ := tests.Get(fmt.Sprintf("%s%s", s.URL(), "/v1/watch/foo/bar"))
			body = tests.ReadBodyJSON(resp)
			c <- true
		}()

		// Make sure response didn't fire early.
		time.Sleep(1 * time.Millisecond)
		assert.Nil(t, body, "")

		// Set a value.
		v := url.Values{}
		v.Set("value", "XXX")
		resp, _ := tests.PutForm(fmt.Sprintf("%s%s", s.URL(), "/v1/keys/foo/bar"), v)
		tests.ReadBody(resp)

		// A response should follow from the GET above.
		time.Sleep(1 * time.Millisecond)

		select {
		case <-c:

		default:
			t.Fatal("cannot get watch result")
		}

		assert.NotNil(t, body, "")
		assert.Equal(t, body["action"], "set", "")

		assert.Equal(t, body["key"], "/foo/bar", "")
		assert.Equal(t, body["value"], "XXX", "")
		assert.Equal(t, body["index"], 2, "")
	})
}

// Ensure that we can start a v2 node from the log of a v1 node.
func TestV1SoloMigration(t *testing.T) {
	path, _ := ioutil.TempDir("", "etcd-")
	os.MkdirAll(path, 0777)
	defer os.RemoveAll(path)

	nodepath := filepath.Join(path, "node0")
	fixturepath, _ := filepath.Abs("../fixtures/v1.solo/node0")
	fmt.Println("DATA_DIR =", nodepath)

	// Copy over fixture files.
	c := exec.Command("cp", "-rf", fixturepath, nodepath)
	if out, err := c.CombinedOutput(); err != nil {
		fmt.Println(">>>>>>\n", string(out), "<<<<<<")
		panic("Fixture initialization error:" + err.Error())
	}

	procAttr := new(os.ProcAttr)
	procAttr.Files = []*os.File{nil, os.Stdout, os.Stderr}

	args := []string{"etcd", fmt.Sprintf("-data-dir=%s", nodepath)}
	args = append(args, "-addr", "127.0.0.1:4001")
	args = append(args, "-peer-addr", "127.0.0.1:7001")
	args = append(args, "-name", "node0")
	process, err := os.StartProcess(EtcdBinPath, args, procAttr)
	if err != nil {
		t.Fatal("start process failed:" + err.Error())
		return
	}
	defer process.Kill()
	time.Sleep(time.Second)

	// Ensure deleted message is removed.
	resp, err := tests.Get("http://localhost:4001/v2/keys/message")
	tests.ReadBody(resp)
	assert.Nil(t, err, "")
	assert.Equal(t, resp.StatusCode, 200, "")
}