github.com/weaviate/weaviate@v1.24.6/modules/qna-transformers/clients/qna_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  	"encoding/json"
    17  	"net/http"
    18  	"net/http/httptest"
    19  	"testing"
    20  
    21  	"github.com/stretchr/testify/assert"
    22  	"github.com/stretchr/testify/require"
    23  	"github.com/weaviate/weaviate/entities/additional"
    24  	"github.com/weaviate/weaviate/modules/qna-transformers/ent"
    25  )
    26  
    27  func TestGetAnswer(t *testing.T) {
    28  	t.Run("when the server has a successful answer (with distance)", func(t *testing.T) {
    29  		server := httptest.NewServer(&testAnswerHandler{
    30  			t: t,
    31  			answer: answersResponse{
    32  				answersInput: answersInput{
    33  					Text:     "My name is John",
    34  					Question: "What is my name?",
    35  				},
    36  				Answer:    ptString("John"),
    37  				Certainty: ptFloat(0.7),
    38  				Distance:  ptFloat(0.3),
    39  			},
    40  		})
    41  		defer server.Close()
    42  		c := New(server.URL, 0, nullLogger())
    43  		res, err := c.Answer(context.Background(), "My name is John",
    44  			"What is my name?")
    45  		assert.Nil(t, err)
    46  
    47  		expectedResult := ent.AnswerResult{
    48  			Text:      "My name is John",
    49  			Question:  "What is my name?",
    50  			Answer:    ptString("John"),
    51  			Certainty: ptFloat(0.7),
    52  			Distance:  ptFloat(0.6),
    53  		}
    54  
    55  		assert.Equal(t, expectedResult.Text, res.Text)
    56  		assert.Equal(t, expectedResult.Question, res.Question)
    57  		assert.Equal(t, expectedResult.Answer, res.Answer)
    58  		assert.Equal(t, expectedResult.Certainty, res.Certainty)
    59  		assert.InDelta(t, *expectedResult.Distance, *res.Distance, 1e-9)
    60  	})
    61  
    62  	t.Run("when the server has a successful answer (with certainty)", func(t *testing.T) {
    63  		server := httptest.NewServer(&testAnswerHandler{
    64  			t: t,
    65  			answer: answersResponse{
    66  				answersInput: answersInput{
    67  					Text:     "My name is John",
    68  					Question: "What is my name?",
    69  				},
    70  				Answer:    ptString("John"),
    71  				Certainty: ptFloat(0.7),
    72  			},
    73  		})
    74  		defer server.Close()
    75  		c := New(server.URL, 0, nullLogger())
    76  		res, err := c.Answer(context.Background(), "My name is John",
    77  			"What is my name?")
    78  
    79  		assert.Nil(t, err)
    80  		assert.Equal(t, &ent.AnswerResult{
    81  			Text:      "My name is John",
    82  			Question:  "What is my name?",
    83  			Answer:    ptString("John"),
    84  			Certainty: ptFloat(0.7),
    85  			Distance:  additional.CertaintyToDistPtr(ptFloat(0.7)),
    86  		}, res)
    87  	})
    88  
    89  	t.Run("when the server has a an error", func(t *testing.T) {
    90  		server := httptest.NewServer(&testAnswerHandler{
    91  			t: t,
    92  			answer: answersResponse{
    93  				Error: "some error from the server",
    94  			},
    95  		})
    96  		defer server.Close()
    97  		c := New(server.URL, 0, nullLogger())
    98  		_, err := c.Answer(context.Background(), "My name is John",
    99  			"What is my name?")
   100  
   101  		require.NotNil(t, err)
   102  		assert.Contains(t, err.Error(), "some error from the server")
   103  	})
   104  }
   105  
   106  type testAnswerHandler struct {
   107  	t *testing.T
   108  	// the test handler will report as not ready before the time has passed
   109  	answer answersResponse
   110  }
   111  
   112  func (f *testAnswerHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
   113  	assert.Equal(f.t, "/answers/", r.URL.String())
   114  	assert.Equal(f.t, http.MethodPost, r.Method)
   115  
   116  	if f.answer.Error != "" {
   117  		w.WriteHeader(500)
   118  	}
   119  	jsonBytes, _ := json.Marshal(f.answer)
   120  	w.Write(jsonBytes)
   121  }
   122  
   123  func ptFloat(in float64) *float64 {
   124  	return &in
   125  }
   126  
   127  func ptString(in string) *string {
   128  	return &in
   129  }