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// _ _
// __ _____ __ ___ ___ __ _| |_ ___
// \ \ /\ / / _ \/ _` \ \ / / |/ _` | __/ _ \
// \ V V / __/ (_| |\ V /| | (_| | || __/
// \_/\_/ \___|\__,_| \_/ |_|\__,_|\__\___|
//
// Copyright © 2016 - 2024 Weaviate B.V. All rights reserved.
//
// CONTACT: [email protected]
//
package clients
import (
"context"
"net/http"
"net/http/httptest"
"regexp"
"strings"
"testing"
"time"
"github.com/sirupsen/logrus"
"github.com/sirupsen/logrus/hooks/test"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestWaitForStartup(t *testing.T) {
t.Run("when common server is immediately ready", func(t *testing.T) {
server := httptest.NewServer(&testReadyHandler{t: t})
defer server.Close()
v := New(server.URL, server.URL, 0, nullLogger())
err := v.WaitForStartup(context.Background(), 150*time.Millisecond)
assert.Nil(t, err)
})
t.Run("when passage and query servers are immediately ready", func(t *testing.T) {
serverPassage := httptest.NewServer(&testReadyHandler{t: t})
serverQuery := httptest.NewServer(&testReadyHandler{t: t})
defer serverPassage.Close()
defer serverQuery.Close()
v := New(serverPassage.URL, serverQuery.URL, 0, nullLogger())
err := v.WaitForStartup(context.Background(), 150*time.Millisecond)
assert.Nil(t, err)
})
t.Run("when common server is down", func(t *testing.T) {
url := "http://nothing-running-at-this-url"
v := New(url, url, 0, nullLogger())
ctx, cancel := context.WithTimeout(context.Background(), 200*time.Millisecond)
defer cancel()
err := v.WaitForStartup(ctx, 50*time.Millisecond)
require.NotNil(t, err, nullLogger())
assert.Contains(t, err.Error(), "init context expired before remote was ready: send check ready request")
assertContainsEither(t, err.Error(), "dial tcp", "context deadline exceeded")
assert.NotContains(t, err.Error(), "[passage]")
assert.NotContains(t, err.Error(), "[query]")
})
t.Run("when passage and query servers are down", func(t *testing.T) {
urlPassage := "http://nothing-running-at-this-url"
urlQuery := "http://nothing-running-at-this-url-either"
v := New(urlPassage, urlQuery, 0, nullLogger())
ctx, cancel := context.WithTimeout(context.Background(), 200*time.Millisecond)
defer cancel()
err := v.WaitForStartup(ctx, 50*time.Millisecond)
require.NotNil(t, err, nullLogger())
assert.Contains(t, err.Error(), "[passage] init context expired before remote was ready: send check ready request")
assert.Contains(t, err.Error(), "[query] init context expired before remote was ready: send check ready request")
assertContainsEither(t, err.Error(), "dial tcp", "context deadline exceeded")
})
t.Run("when common server is alive, but not ready", func(t *testing.T) {
server := httptest.NewServer(&testReadyHandler{
t: t,
readyTime: time.Now().Add(time.Hour),
})
defer server.Close()
v := New(server.URL, server.URL, 0, nullLogger())
ctx, cancel := context.WithTimeout(context.Background(), 200*time.Millisecond)
defer cancel()
err := v.WaitForStartup(ctx, 50*time.Millisecond)
require.NotNil(t, err)
assert.Contains(t, err.Error(), "init context expired before remote was ready")
assertContainsEither(t, err.Error(), "not ready: status 503", "context deadline exceeded")
assert.NotContains(t, err.Error(), "[passage]")
assert.NotContains(t, err.Error(), "[query]")
})
t.Run("when passage and query servers are alive, but not ready", func(t *testing.T) {
rt := time.Now().Add(time.Hour)
serverPassage := httptest.NewServer(&testReadyHandler{
t: t,
readyTime: rt,
})
serverQuery := httptest.NewServer(&testReadyHandler{
t: t,
readyTime: rt,
})
defer serverPassage.Close()
defer serverQuery.Close()
v := New(serverPassage.URL, serverQuery.URL, 0, nullLogger())
ctx, cancel := context.WithTimeout(context.Background(), 200*time.Millisecond)
defer cancel()
err := v.WaitForStartup(ctx, 50*time.Millisecond)
require.NotNil(t, err)
assert.Contains(t, err.Error(), "[passage] init context expired before remote was ready")
assert.Contains(t, err.Error(), "[query] init context expired before remote was ready")
assertContainsEither(t, err.Error(), "not ready: status 503", "context deadline exceeded")
})
t.Run("when passage and query servers are alive, but query one is not ready", func(t *testing.T) {
serverPassage := httptest.NewServer(&testReadyHandler{t: t})
serverQuery := httptest.NewServer(&testReadyHandler{
t: t,
readyTime: time.Now().Add(1 * time.Minute),
})
defer serverPassage.Close()
defer serverQuery.Close()
v := New(serverPassage.URL, serverQuery.URL, 0, nullLogger())
ctx, cancel := context.WithTimeout(context.Background(), 200*time.Millisecond)
defer cancel()
err := v.WaitForStartup(ctx, 50*time.Millisecond)
require.NotNil(t, err)
assert.Contains(t, err.Error(), "[query] init context expired before remote was ready")
assertContainsEither(t, err.Error(), "not ready: status 503", "context deadline exceeded")
assert.NotContains(t, err.Error(), "[passage]")
})
t.Run("when common server is initially not ready, but then becomes ready", func(t *testing.T) {
server := httptest.NewServer(&testReadyHandler{
t: t,
readyTime: time.Now().Add(100 * time.Millisecond),
})
v := New(server.URL, server.URL, 0, nullLogger())
defer server.Close()
ctx, cancel := context.WithTimeout(context.Background(), 200*time.Millisecond)
defer cancel()
err := v.WaitForStartup(ctx, 50*time.Millisecond)
require.Nil(t, err)
})
t.Run("when passage and query servers are initially not ready, but then become ready", func(t *testing.T) {
serverPassage := httptest.NewServer(&testReadyHandler{
t: t,
readyTime: time.Now().Add(100 * time.Millisecond),
})
serverQuery := httptest.NewServer(&testReadyHandler{
t: t,
readyTime: time.Now().Add(150 * time.Millisecond),
})
defer serverPassage.Close()
defer serverQuery.Close()
v := New(serverPassage.URL, serverQuery.URL, 0, nullLogger())
ctx, cancel := context.WithTimeout(context.Background(), 200*time.Millisecond)
defer cancel()
err := v.WaitForStartup(ctx, 50*time.Millisecond)
require.Nil(t, err)
})
}
type testReadyHandler struct {
t *testing.T
// the test handler will report as not ready before the time has passed
readyTime time.Time
}
func (f *testReadyHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
assert.Equal(f.t, "/.well-known/ready", r.URL.String())
assert.Equal(f.t, http.MethodGet, r.Method)
if time.Since(f.readyTime) < 0 {
w.WriteHeader(http.StatusServiceUnavailable)
} else {
w.WriteHeader(http.StatusNoContent)
}
}
func nullLogger() logrus.FieldLogger {
l, _ := test.NewNullLogger()
return l
}
func assertContainsEither(t *testing.T, str string, contains ...string) {
reg := regexp.MustCompile(strings.Join(contains, "|"))
assert.Regexp(t, reg, str)
}
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