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package disco
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import (
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"encoding/json"
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"fmt"
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"io/ioutil"
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"net/http"
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"net/http/httptest"
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"testing"
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)
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func Test_NewClient(t *testing.T) {
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c := New("https://discovery.rqlite.com")
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if c == nil {
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t.Fatal("failed to create new disco client")
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}
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if c.URL() != "https://discovery.rqlite.com" {
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t.Fatal("configured address of disco service is incorrect")
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}
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}
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func Test_ClientRegisterBadRequest(t *testing.T) {
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ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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if r.Method != "POST" {
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t.Fatalf("Client did not use POST")
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}
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w.WriteHeader(http.StatusBadRequest)
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}))
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defer ts.Close()
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c := New(ts.URL)
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_, err := c.Register("1234", "http://127.0.0.1")
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if err == nil {
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t.Fatalf("failed to receive error on 400 from server")
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}
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}
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func Test_ClientRegisterNotFound(t *testing.T) {
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ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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if r.Method != "POST" {
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t.Fatalf("Client did not use POST")
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}
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w.WriteHeader(http.StatusNotFound)
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}))
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defer ts.Close()
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c := New(ts.URL)
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_, err := c.Register("1234", "http://127.0.0.1")
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if err == nil {
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t.Fatalf("failed to receive error on 404 from server")
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}
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}
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func Test_ClientRegisterForbidden(t *testing.T) {
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ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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if r.Method != "POST" {
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t.Fatalf("Client did not use POST")
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}
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w.WriteHeader(http.StatusForbidden)
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}))
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defer ts.Close()
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c := New(ts.URL)
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_, err := c.Register("1234", "http://127.0.0.1")
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if err == nil {
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t.Fatalf("failed to receive error on 403 from server")
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}
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}
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func Test_ClientRegisterRequestOK(t *testing.T) {
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ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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if r.Method != "POST" {
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t.Fatalf("Client did not use POST")
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}
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if r.URL.String() != "/1234" {
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t.Fatalf("Request URL is wrong, got: %s", r.URL.String())
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}
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b, err := ioutil.ReadAll(r.Body)
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if err != nil {
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t.Fatalf("failed to read request from client: %s", err.Error())
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}
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m := map[string]string{}
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if err := json.Unmarshal(b, &m); err != nil {
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t.Fatalf("failed to unmarshal request from client: %s", err.Error())
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}
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if m["addr"] != "http://127.0.0.1" {
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t.Fatalf("incorrect join address supplied by client: %s", m["addr"])
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}
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fmt.Fprintln(w, `{"created_at": "2017-02-17 04:49:05.079125", "disco_id": "68d6c7cc-f4cc-11e6-a170-2e79ea0be7b1", "nodes": ["http://127.0.0.1"]}`)
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}))
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defer ts.Close()
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c := New(ts.URL)
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disco, err := c.Register("1234", "http://127.0.0.1")
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if err != nil {
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t.Fatalf("failed to register: %s", err.Error())
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}
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if len(disco.Nodes) != 1 {
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t.Fatalf("failed to receive correct list of nodes, got %v", disco.Nodes)
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}
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}
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func Test_ClientRegisterRequestRedirectOK(t *testing.T) {
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ts1 := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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if r.Method != "POST" {
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t.Fatalf("Client did not use POST")
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}
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if r.URL.String() != "/1234" {
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t.Fatalf("Request URL is wrong, got: %s", r.URL.String())
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}
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b, err := ioutil.ReadAll(r.Body)
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if err != nil {
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t.Fatalf("failed to read request from client: %s", err.Error())
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}
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m := map[string]string{}
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if err := json.Unmarshal(b, &m); err != nil {
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t.Fatalf("failed to unmarshal request from client: %s", err.Error())
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}
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if m["addr"] != "http://127.0.0.1" {
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t.Fatalf("incorrect join address supplied by client: %s", m["addr"])
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}
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fmt.Fprintln(w, `{"created_at": "2017-02-17 04:49:05.079125", "disco_id": "68d6c7cc-f4cc-11e6-a170-2e79ea0be7b1", "nodes": ["http://127.0.0.1"]}`)
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}))
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defer ts1.Close()
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ts2 := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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http.Redirect(w, r, ts1.URL+"/1234", http.StatusMovedPermanently)
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}))
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c := New(ts2.URL)
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disco, err := c.Register("1234", "http://127.0.0.1")
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if err != nil {
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t.Fatalf("failed to register: %s", err.Error())
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}
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if len(disco.Nodes) != 1 {
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t.Fatalf("failed to receive correct list of nodes, got %v", disco.Nodes)
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}
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}
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func Test_ClientRegisterFollowerOK(t *testing.T) {
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ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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if r.Method != "POST" {
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t.Fatalf("Client did not use POST")
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}
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fmt.Fprintln(w, `{"created_at": "2017-02-17 04:49:05.079125", "disco_id": "68d6c7cc-f4cc-11e6-a170-2e79ea0be7b1", "nodes": ["http://1.1.1.1", "http://2.2.2.2"]}`)
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}))
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defer ts.Close()
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c := New(ts.URL)
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disco, err := c.Register("1234", "http://2.2.2.2")
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if err != nil {
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t.Fatalf("failed to register: %s", err.Error())
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}
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if len(disco.Nodes) != 2 {
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t.Fatalf("failed to receive non-empty list of nodes")
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}
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if disco.Nodes[0] != `http://1.1.1.1` {
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t.Fatalf("got incorrect node, got %v", disco.Nodes[0])
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}
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}
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func Test_ClientRegisterFollowerMultiOK(t *testing.T) {
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ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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if r.Method != "POST" {
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t.Fatalf("Client did not use POST")
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}
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fmt.Fprintln(w, `{"created_at": "2017-02-17 04:49:05.079125", "disco_id": "68d6c7cc-f4cc-11e6-a170-2e79ea0be7b1", "nodes": ["http://1.1.1.1", "http://2.2.2.2", "http://3.3.3.3"]}`)
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}))
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defer ts.Close()
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c := New(ts.URL)
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disco, err := c.Register("1234", "http://3.3.3.3")
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if err != nil {
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t.Fatalf("failed to register: %s", err.Error())
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}
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if len(disco.Nodes) != 3 {
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t.Fatalf("failed to receive non-empty list of nodes")
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}
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if disco.Nodes[0] != `http://1.1.1.1` {
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t.Fatalf("got incorrect first node, got %v", disco.Nodes[0])
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}
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if disco.Nodes[1] != `http://2.2.2.2` {
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t.Fatalf("got incorrect second node, got %v", disco.Nodes[1])
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}
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if disco.Nodes[2] != `http://3.3.3.3` {
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t.Fatalf("got incorrect third node, got %v", disco.Nodes[1])
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}
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}
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