github.com/weaviate/weaviate@v1.24.6/modules/text2vec-gpt4all/clients/startup_test.go (about)

     1  //                           _       _
     2  // __      _____  __ ___   ___  __ _| |_ ___
     3  // \ \ /\ / / _ \/ _` \ \ / / |/ _` | __/ _ \
     4  //  \ V  V /  __/ (_| |\ V /| | (_| | ||  __/
     5  //   \_/\_/ \___|\__,_| \_/ |_|\__,_|\__\___|
     6  //
     7  //  Copyright © 2016 - 2024 Weaviate B.V. All rights reserved.
     8  //
     9  //  CONTACT: hello@weaviate.io
    10  //
    11  
    12  package clients
    13  
    14  import (
    15  	"context"
    16  	"net/http"
    17  	"net/http/httptest"
    18  	"testing"
    19  	"time"
    20  
    21  	"github.com/sirupsen/logrus"
    22  	"github.com/sirupsen/logrus/hooks/test"
    23  	"github.com/stretchr/testify/assert"
    24  	"github.com/stretchr/testify/require"
    25  )
    26  
    27  func TestWaitForStartup(t *testing.T) {
    28  	t.Run("when the server is immediately ready", func(t *testing.T) {
    29  		server := httptest.NewServer(&testReadyHandler{t: t})
    30  		defer server.Close()
    31  		c := New(server.URL, 0, nullLogger())
    32  		err := c.WaitForStartup(context.Background(), 50*time.Millisecond)
    33  
    34  		assert.Nil(t, err)
    35  	})
    36  
    37  	t.Run("when the server is down", func(t *testing.T) {
    38  		c := New("http://nothing-running-at-this-url", 0, nullLogger())
    39  		ctx, cancel := context.WithTimeout(context.Background(), 200*time.Millisecond)
    40  		defer cancel()
    41  		err := c.WaitForStartup(ctx, 150*time.Millisecond)
    42  
    43  		require.NotNil(t, err, nullLogger())
    44  		assert.Contains(t, err.Error(), "expired before remote was ready")
    45  	})
    46  
    47  	t.Run("when the server is alive, but not ready", func(t *testing.T) {
    48  		server := httptest.NewServer(&testReadyHandler{
    49  			t:         t,
    50  			readyTime: time.Now().Add(1 * time.Minute),
    51  		})
    52  		c := New(server.URL, 0, nullLogger())
    53  		defer server.Close()
    54  		ctx, cancel := context.WithTimeout(context.Background(), 200*time.Millisecond)
    55  		defer cancel()
    56  		err := c.WaitForStartup(ctx, 50*time.Millisecond)
    57  
    58  		require.NotNil(t, err)
    59  		assert.Contains(t, err.Error(), "expired before remote was ready")
    60  	})
    61  
    62  	t.Run("when the server is initially not ready, but then becomes ready",
    63  		func(t *testing.T) {
    64  			server := httptest.NewServer(&testReadyHandler{
    65  				t:         t,
    66  				readyTime: time.Now().Add(100 * time.Millisecond),
    67  			})
    68  			c := New(server.URL, 0, nullLogger())
    69  			defer server.Close()
    70  			ctx, cancel := context.WithTimeout(context.Background(), 200*time.Millisecond)
    71  			defer cancel()
    72  			err := c.WaitForStartup(ctx, 50*time.Millisecond)
    73  
    74  			require.Nil(t, err)
    75  		})
    76  }
    77  
    78  type testReadyHandler struct {
    79  	t *testing.T
    80  	// the test handler will report as not ready before the time has passed
    81  	readyTime time.Time
    82  }
    83  
    84  func (f *testReadyHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
    85  	assert.Equal(f.t, "/.well-known/ready", r.URL.String())
    86  	assert.Equal(f.t, http.MethodGet, r.Method)
    87  
    88  	if time.Since(f.readyTime) < 0 {
    89  		w.WriteHeader(http.StatusServiceUnavailable)
    90  	}
    91  
    92  	w.WriteHeader(http.StatusNoContent)
    93  }
    94  
    95  func nullLogger() logrus.FieldLogger {
    96  	l, _ := test.NewNullLogger()
    97  	return l
    98  }