-
Notifications
You must be signed in to change notification settings - Fork 1.1k
/
nulls_test.go
148 lines (127 loc) · 4.84 KB
/
nulls_test.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
package followschema
import (
"context"
"errors"
"testing"
"github.com/stretchr/testify/require"
"github.com/99designs/gqlgen/client"
"github.com/99designs/gqlgen/graphql/handler"
)
func TestNullBubbling(t *testing.T) {
resolvers := &Stub{}
resolvers.QueryResolver.Valid = func(ctx context.Context) (s string, e error) {
return "Ok", nil
}
resolvers.QueryResolver.Invalid = func(ctx context.Context) (s string, e error) {
return "Ok", errors.New("ERROR")
}
resolvers.QueryResolver.Errors = func(ctx context.Context) (errors *Errors, e error) {
return &Errors{}, nil
}
resolvers.QueryResolver.ErrorBubble = func(ctx context.Context) (i *Error, e error) {
return &Error{ID: "E1234"}, nil
}
resolvers.QueryResolver.ErrorBubbleList = func(ctx context.Context) (i []*Error, e error) {
return []*Error{{ID: "1"}, nil, nil}, nil
}
resolvers.QueryResolver.ErrorList = func(ctx context.Context) (i []*Error, e error) {
return []*Error{nil}, nil
}
c := client.New(handler.NewDefaultServer(NewExecutableSchema(Config{Resolvers: resolvers})))
t.Run("when function errors on non required field", func(t *testing.T) {
var resp struct {
Valid string
ErrorBubble *struct {
Id string
ErrorOnNonRequiredField *string
}
}
err := c.Post(`query { valid, errorBubble { id, errorOnNonRequiredField } }`, &resp)
require.EqualError(t, err, `[{"message":"boom","path":["errorBubble","errorOnNonRequiredField"]}]`)
require.Equal(t, "E1234", resp.ErrorBubble.Id)
require.Nil(t, resp.ErrorBubble.ErrorOnNonRequiredField)
require.Equal(t, "Ok", resp.Valid)
})
t.Run("when function errors", func(t *testing.T) {
var resp struct {
Valid string
ErrorBubble *struct {
NilOnRequiredField string
}
}
err := c.Post(`query { valid, errorBubble { id, errorOnRequiredField } }`, &resp)
require.EqualError(t, err, `[{"message":"boom","path":["errorBubble","errorOnRequiredField"]}]`)
require.Nil(t, resp.ErrorBubble)
require.Equal(t, "Ok", resp.Valid)
})
t.Run("when user returns null on required field", func(t *testing.T) {
var resp struct {
Valid string
ErrorBubble *struct {
NilOnRequiredField string
}
}
err := c.Post(`query { valid, errorBubble { id, nilOnRequiredField } }`, &resp)
require.EqualError(t, err, `[{"message":"the requested element is null which the schema does not allow","path":["errorBubble","nilOnRequiredField"]}]`)
require.Nil(t, resp.ErrorBubble)
require.Equal(t, "Ok", resp.Valid)
})
t.Run("when list element is null", func(t *testing.T) {
var resp struct {
Valid string
ErrorList []*struct{}
}
err := c.Post(`query { valid, errorList { id } }`, &resp)
require.Nil(t, err)
require.Equal(t, 1, len(resp.ErrorList))
require.Nil(t, resp.ErrorList[0])
require.Equal(t, "Ok", resp.Valid)
})
t.Run("when non-null list element is null", func(t *testing.T) {
var resp struct {
Valid string
ErrorBubbleList []*struct{}
}
err := c.Post(`query { valid, errorBubbleList { id } }`, &resp)
require.Contains(t, err.Error(), `{"message":"the requested element is null which the schema does not allow","path":["errorBubbleList",2]}`)
require.Contains(t, err.Error(), `{"message":"the requested element is null which the schema does not allow","path":["errorBubbleList",1]}`)
require.Nil(t, resp.ErrorBubbleList)
require.Equal(t, "Ok", resp.Valid)
})
t.Run("null args", func(t *testing.T) {
var resp struct {
NullableArg *string
}
resolvers.QueryResolver.NullableArg = func(ctx context.Context, arg *int) (i *string, e error) {
v := "Ok"
return &v, nil
}
err := c.Post(`query { nullableArg(arg: null) }`, &resp)
require.Nil(t, err)
require.Equal(t, "Ok", *resp.NullableArg)
})
t.Run("concurrent null detection", func(t *testing.T) {
var resp interface{}
resolvers.ErrorsResolver.A = func(ctx context.Context, obj *Errors) (i *Error, e error) { return nil, nil }
resolvers.ErrorsResolver.B = func(ctx context.Context, obj *Errors) (i *Error, e error) { return nil, nil }
resolvers.ErrorsResolver.C = func(ctx context.Context, obj *Errors) (i *Error, e error) { return nil, nil }
resolvers.ErrorsResolver.D = func(ctx context.Context, obj *Errors) (i *Error, e error) { return nil, nil }
resolvers.ErrorsResolver.E = func(ctx context.Context, obj *Errors) (i *Error, e error) { return nil, nil }
err := c.Post(`{ errors {
a { id },
b { id },
c { id },
d { id },
e { id },
} }`, &resp)
require.Error(t, err)
require.Contains(t, err.Error(), "the requested element is null which the schema does not allow")
})
t.Run("when non-nullable field returns content while error occurred", func(t *testing.T) {
var resp any
err := c.Post(`query { invalid }`, &resp)
require.Nil(t, resp)
require.NotNil(t, err)
require.Contains(t, err.Error(), `{"message":"ERROR","path":["invalid"]}`)
})
}