-
Notifications
You must be signed in to change notification settings - Fork 2.3k
/
UserFunctionVisitorTest.java
137 lines (112 loc) · 6 KB
/
UserFunctionVisitorTest.java
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
/*
* Copyright (c) 2002-2018 "Neo4j,"
* Neo4j Sweden AB [http://neo4j.com]
*
* This file is part of Neo4j.
*
* Neo4j is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.neo4j.tooling.procedure.visitors;
import com.google.testing.compile.CompilationRule;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import org.junit.jupiter.api.condition.JRE;
import java.util.stream.Stream;
import javax.lang.model.element.Element;
import javax.lang.model.element.ElementVisitor;
import javax.lang.model.util.Elements;
import javax.lang.model.util.Types;
import javax.tools.Diagnostic;
import org.neo4j.procedure.UserFunction;
import org.neo4j.tooling.procedure.compilerutils.CustomNameExtractor;
import org.neo4j.tooling.procedure.compilerutils.TypeMirrorUtils;
import org.neo4j.tooling.procedure.messages.CompilationMessage;
import org.neo4j.tooling.procedure.testutils.ElementTestUtils;
import org.neo4j.tooling.procedure.visitors.examples.UserFunctionsExamples;
import static org.assertj.core.api.Assertions.assertThat;
import static org.assertj.core.groups.Tuple.tuple;
public class UserFunctionVisitorTest
{
@Rule
public CompilationRule compilationRule = new CompilationRule();
private ElementTestUtils elementTestUtils;
private ElementVisitor<Stream<CompilationMessage>,Void> visitor;
@Before
public void prepare()
{
Types types = compilationRule.getTypes();
Elements elements = compilationRule.getElements();
elementTestUtils = new ElementTestUtils( compilationRule );
final TypeMirrorUtils typeMirrorUtils = new TypeMirrorUtils( types, elements );
visitor = new UserFunctionVisitor( new FunctionVisitor<>( UserFunction.class, types, elements, typeMirrorUtils,
function -> CustomNameExtractor.getName( function::name, function::value ), false ) );
}
@Test
public void functions_with_specified_name_cannot_be_in_root_namespace()
{
Element function = elementTestUtils.findMethodElement( UserFunctionsExamples.class, "functionWithName" );
Stream<CompilationMessage> errors = visitor.visit( function );
assertThat( errors ).hasSize( 1 ).extracting( CompilationMessage::getCategory, CompilationMessage::getElement,
CompilationMessage::getContents ).contains( tuple( Diagnostic.Kind.ERROR, function,
"Function <in_root_namespace> cannot be defined in the root namespace. Valid name example: com.acme.my_function" ) );
}
@Test
public void functions_with_specified_value_cannot_be_in_root_namespace()
{
Element function = elementTestUtils.findMethodElement( UserFunctionsExamples.class, "functionWithValue" );
Stream<CompilationMessage> errors = visitor.visit( function );
assertThat( errors ).hasSize( 1 ).extracting( CompilationMessage::getCategory, CompilationMessage::getElement,
CompilationMessage::getContents ).contains( tuple( Diagnostic.Kind.ERROR, function,
"Function <in_root_namespace_again> cannot be defined in the root namespace. Valid name example: com.acme.my_function" ) );
}
@Test
public void functions_in_non_root_namespace_are_valid()
{
Element function = elementTestUtils.findMethodElement( UserFunctionsExamples.class, "ok" );
Stream<CompilationMessage> errors = visitor.visit( function );
assertThat( errors ).isEmpty();
}
@Test
public void functions_with_unsupported_return_types_are_invalid()
{
Element function = elementTestUtils.findMethodElement( UserFunctionsExamples.class, "wrongReturnType" );
Stream<CompilationMessage> errors = visitor.visit( function );
assertThat( errors ).hasSize( 1 ).extracting( CompilationMessage::getCategory, CompilationMessage::getElement,
CompilationMessage::getContents ).contains( tuple( Diagnostic.Kind.ERROR, function,
"Unsupported return type <void> of function defined in " +
"<org.neo4j.tooling.procedure.visitors.examples.UserFunctionsExamples#wrongReturnType>." ) );
}
@Test
public void functions_with_unsupported_parameter_types_are_invalid()
{
Element function = elementTestUtils.findMethodElement( UserFunctionsExamples.class, "wrongParameterType" );
Stream<CompilationMessage> errors = visitor.visit( function );
assertThat( errors ).hasSize( 1 ).extracting( CompilationMessage::getCategory, CompilationMessage::getContents )
.contains( tuple( Diagnostic.Kind.ERROR,
"Unsupported parameter type <java.lang.Thread> of procedure|function " +
"UserFunctionsExamples#wrongParameterType" ) );
}
@Test
public void functions_with_non_annotated_parameters_are_invalid()
{
Element function =
elementTestUtils.findMethodElement( UserFunctionsExamples.class, "missingParameterAnnotation" );
Stream<CompilationMessage> errors = visitor.visit( function );
String errorMessage = JRE.JAVA_11.isCurrentVersion() ? "@org.neo4j.procedure.Name usage error: missing on parameter <oops>"
: "@org.neo4j.procedure.Name usage error: missing on parameter <arg1>";
assertThat( errors ).hasSize( 1 ).extracting( CompilationMessage::getCategory, CompilationMessage::getContents )
.contains( tuple( Diagnostic.Kind.ERROR, errorMessage ) );
}
}