forked from square/kotlinpoet
-
Notifications
You must be signed in to change notification settings - Fork 0
/
LambdaTypeNameTest.kt
171 lines (154 loc) · 5.18 KB
/
LambdaTypeNameTest.kt
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
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
/*
* Copyright (C) 2017 Square, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.squareup.kotlinpoet
import com.google.common.truth.Truth.assertThat
import com.squareup.kotlinpoet.KModifier.VARARG
import javax.annotation.Nullable
import kotlin.test.Test
@OptIn(ExperimentalKotlinPoetApi::class)
class LambdaTypeNameTest {
@Retention(AnnotationRetention.RUNTIME)
annotation class HasSomeAnnotation
@HasSomeAnnotation
inner class IsAnnotated
@Test fun receiverWithoutAnnotationHasNoParens() {
val typeName = LambdaTypeName.get(
Int::class.asClassName(),
listOf(),
Unit::class.asTypeName()
)
assertThat(typeName.toString()).isEqualTo("kotlin.Int.() -> kotlin.Unit")
}
@Test fun receiverWithAnnotationHasParens() {
val annotation = IsAnnotated::class.java.getAnnotation(HasSomeAnnotation::class.java)
val typeName = LambdaTypeName.get(
Int::class.asClassName().copy(
annotations = listOf(AnnotationSpec.get(annotation, includeDefaultValues = true))
),
listOf(),
Unit::class.asTypeName()
)
assertThat(typeName.toString()).isEqualTo(
"(@com.squareup.kotlinpoet.LambdaTypeNameTest.HasSomeAnnotation kotlin.Int).() -> kotlin.Unit"
)
}
@Test fun contextReceiver() {
val typeName = LambdaTypeName.get(
Int::class.asTypeName(),
listOf(),
Unit::class.asTypeName(),
listOf(STRING)
)
assertThat(typeName.toString()).isEqualTo(
"context(kotlin.String) kotlin.Int.() -> kotlin.Unit"
)
}
@Test fun functionWithMultipleContextReceiver() {
val typeName = LambdaTypeName.get(
Int::class.asTypeName(),
listOf(),
Unit::class.asTypeName(),
listOf(STRING, BOOLEAN)
)
assertThat(typeName.toString()).isEqualTo(
"context(kotlin.String, kotlin.Boolean) kotlin.Int.() -> kotlin.Unit"
)
}
@Test fun functionWithGenericContextReceiver() {
val genericType = TypeVariableName("T")
val typeName = LambdaTypeName.get(
Int::class.asTypeName(),
listOf(),
Unit::class.asTypeName(),
listOf(genericType)
)
assertThat(typeName.toString()).isEqualTo(
"context(T) kotlin.Int.() -> kotlin.Unit"
)
}
@Test fun functionWithAnnotatedContextReceiver() {
val annotatedType = STRING.copy(annotations = listOf(AnnotationSpec.get(FunSpecTest.TestAnnotation())))
val typeName = LambdaTypeName.get(
Int::class.asTypeName(),
listOf(),
Unit::class.asTypeName(),
listOf(annotatedType)
)
assertThat(typeName.toString()).isEqualTo(
"context(@com.squareup.kotlinpoet.FunSpecTest.TestAnnotation kotlin.String) kotlin.Int.() -> kotlin.Unit"
)
}
@Test fun paramsWithAnnotationsForbidden() {
assertThrows<IllegalArgumentException> {
LambdaTypeName.get(
parameters = arrayOf(
ParameterSpec.builder("foo", Int::class)
.addAnnotation(Nullable::class)
.build()
),
returnType = Unit::class.asTypeName()
)
}.hasMessageThat().isEqualTo("Parameters with annotations are not allowed")
}
@Test fun paramsWithModifiersForbidden() {
assertThrows<IllegalArgumentException> {
LambdaTypeName.get(
parameters = arrayOf(
ParameterSpec.builder("foo", Int::class)
.addModifiers(VARARG)
.build()
),
returnType = Unit::class.asTypeName()
)
}.hasMessageThat().isEqualTo("Parameters with modifiers are not allowed")
}
@Test fun paramsWithDefaultValueForbidden() {
assertThrows<IllegalArgumentException> {
LambdaTypeName.get(
parameters = arrayOf(
ParameterSpec.builder("foo", Int::class)
.defaultValue("42")
.build()
),
returnType = Unit::class.asTypeName()
)
}.hasMessageThat().isEqualTo("Parameters with default values are not allowed")
}
@Test fun lambdaReturnType() {
val returnTypeName = LambdaTypeName.get(
parameters = arrayOf(Int::class.asTypeName()),
returnType = Unit::class.asTypeName()
)
val typeName = LambdaTypeName.get(
parameters = arrayOf(Int::class.asTypeName()),
returnType = returnTypeName
)
assertThat(typeName.toString())
.isEqualTo("(kotlin.Int) -> ((kotlin.Int) -> kotlin.Unit)")
}
@Test fun lambdaParameterType() {
val parameterTypeName = LambdaTypeName.get(
parameters = arrayOf(Int::class.asTypeName()),
returnType = Int::class.asTypeName()
)
val typeName = LambdaTypeName.get(
parameters = arrayOf(parameterTypeName),
returnType = Unit::class.asTypeName()
)
assertThat(typeName.toString())
.isEqualTo("((kotlin.Int) -> kotlin.Int) -> kotlin.Unit")
}
}