1 #region Copyright notice and license
2 // Protocol Buffers - Google's data interchange format
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4 // https://developers.google.com/protocol-buffers/
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33 using Google.Protobuf.TestProtos;
34 using NUnit.Framework;
36 using System.Collections.Generic;
39 namespace Google.Protobuf.Reflection
42 /// Tests for descriptors. (Not in its own namespace or broken up into individual classes as the
43 /// size doesn't warrant it. On the other hand, this makes me feel a bit dirty...)
45 public class DescriptorsTest
48 public void FileDescriptor_GeneratedCode()
51 UnittestProto3Reflection.Descriptor,
52 UnittestImportProto3Reflection.Descriptor,
53 UnittestImportPublicProto3Reflection.Descriptor);
57 public void FileDescriptor_BuildFromByteStrings()
59 // The descriptors have to be supplied in an order such that all the
60 // dependencies come before the descriptors depending on them.
61 var descriptorData = new List<ByteString>
63 UnittestImportPublicProto3Reflection.Descriptor.SerializedData,
64 UnittestImportProto3Reflection.Descriptor.SerializedData,
65 UnittestProto3Reflection.Descriptor.SerializedData
67 var converted = FileDescriptor.BuildFromByteStrings(descriptorData);
68 Assert.AreEqual(3, converted.Count);
69 TestFileDescriptor(converted[2], converted[1], converted[0]);
72 private void TestFileDescriptor(FileDescriptor file, FileDescriptor importedFile, FileDescriptor importedPublicFile)
74 Assert.AreEqual("unittest_proto3.proto", file.Name);
75 Assert.AreEqual("protobuf_unittest3", file.Package);
77 Assert.AreEqual("UnittestProto", file.Proto.Options.JavaOuterClassname);
78 Assert.AreEqual("unittest_proto3.proto", file.Proto.Name);
80 // unittest_proto3.proto doesn't have any public imports, but unittest_import_proto3.proto does.
81 Assert.AreEqual(0, file.PublicDependencies.Count);
82 Assert.AreEqual(1, importedFile.PublicDependencies.Count);
83 Assert.AreEqual(importedPublicFile, importedFile.PublicDependencies[0]);
85 Assert.AreEqual(1, file.Dependencies.Count);
86 Assert.AreEqual(importedFile, file.Dependencies[0]);
88 Assert.Null(file.FindTypeByName<MessageDescriptor>("NoSuchType"));
89 Assert.Null(file.FindTypeByName<MessageDescriptor>("protobuf_unittest3.TestAllTypes"));
90 for (int i = 0; i < file.MessageTypes.Count; i++)
92 Assert.AreEqual(i, file.MessageTypes[i].Index);
95 Assert.AreEqual(file.EnumTypes[0], file.FindTypeByName<EnumDescriptor>("ForeignEnum"));
96 Assert.Null(file.FindTypeByName<EnumDescriptor>("NoSuchType"));
97 Assert.Null(file.FindTypeByName<EnumDescriptor>("protobuf_unittest3.ForeignEnum"));
98 Assert.AreEqual(1, importedFile.EnumTypes.Count);
99 Assert.AreEqual("ImportEnum", importedFile.EnumTypes[0].Name);
100 for (int i = 0; i < file.EnumTypes.Count; i++)
102 Assert.AreEqual(i, file.EnumTypes[i].Index);
105 Assert.AreEqual(10, file.SerializedData[0]);
109 public void FileDescriptor_NonRootPath()
111 // unittest_proto3.proto used to be in google/protobuf. Now it's in the C#-specific location,
112 // let's test something that's still in a directory.
113 FileDescriptor file = UnittestWellKnownTypesReflection.Descriptor;
114 Assert.AreEqual("google/protobuf/unittest_well_known_types.proto", file.Name);
115 Assert.AreEqual("protobuf_unittest", file.Package);
119 public void FileDescriptor_BuildFromByteStrings_MissingDependency()
121 var descriptorData = new List<ByteString>
123 UnittestImportProto3Reflection.Descriptor.SerializedData,
124 UnittestProto3Reflection.Descriptor.SerializedData,
126 // This will fail, because we're missing UnittestImportPublicProto3Reflection
127 Assert.Throws<ArgumentException>(() => FileDescriptor.BuildFromByteStrings(descriptorData));
131 public void FileDescriptor_BuildFromByteStrings_DuplicateNames()
133 var descriptorData = new List<ByteString>
135 UnittestImportPublicProto3Reflection.Descriptor.SerializedData,
136 UnittestImportPublicProto3Reflection.Descriptor.SerializedData,
138 // This will fail due to the same name being used twice
139 Assert.Throws<ArgumentException>(() => FileDescriptor.BuildFromByteStrings(descriptorData));
143 public void FileDescriptor_BuildFromByteStrings_IncorrectOrder()
145 var descriptorData = new List<ByteString>
147 UnittestProto3Reflection.Descriptor.SerializedData,
148 UnittestImportPublicProto3Reflection.Descriptor.SerializedData,
149 UnittestImportProto3Reflection.Descriptor.SerializedData
151 // This will fail, because the dependencies should come first
152 Assert.Throws<ArgumentException>(() => FileDescriptor.BuildFromByteStrings(descriptorData));
157 public void MessageDescriptorFromGeneratedCodeFileDescriptor()
159 var file = UnittestProto3Reflection.Descriptor;
161 MessageDescriptor messageType = TestAllTypes.Descriptor;
162 Assert.AreSame(typeof(TestAllTypes), messageType.ClrType);
163 Assert.AreSame(TestAllTypes.Parser, messageType.Parser);
164 Assert.AreEqual(messageType, file.MessageTypes[0]);
165 Assert.AreEqual(messageType, file.FindTypeByName<MessageDescriptor>("TestAllTypes"));
169 public void MessageDescriptor()
171 MessageDescriptor messageType = TestAllTypes.Descriptor;
172 MessageDescriptor nestedType = TestAllTypes.Types.NestedMessage.Descriptor;
174 Assert.AreEqual("TestAllTypes", messageType.Name);
175 Assert.AreEqual("protobuf_unittest3.TestAllTypes", messageType.FullName);
176 Assert.AreEqual(UnittestProto3Reflection.Descriptor, messageType.File);
177 Assert.IsNull(messageType.ContainingType);
178 Assert.IsNull(messageType.Proto.Options);
180 Assert.AreEqual("TestAllTypes", messageType.Name);
182 Assert.AreEqual("NestedMessage", nestedType.Name);
183 Assert.AreEqual("protobuf_unittest3.TestAllTypes.NestedMessage", nestedType.FullName);
184 Assert.AreEqual(UnittestProto3Reflection.Descriptor, nestedType.File);
185 Assert.AreEqual(messageType, nestedType.ContainingType);
187 FieldDescriptor field = messageType.Fields.InDeclarationOrder()[0];
188 Assert.AreEqual("single_int32", field.Name);
189 Assert.AreEqual(field, messageType.FindDescriptor<FieldDescriptor>("single_int32"));
190 Assert.Null(messageType.FindDescriptor<FieldDescriptor>("no_such_field"));
191 Assert.AreEqual(field, messageType.FindFieldByNumber(1));
192 Assert.Null(messageType.FindFieldByNumber(571283));
193 var fieldsInDeclarationOrder = messageType.Fields.InDeclarationOrder();
194 for (int i = 0; i < fieldsInDeclarationOrder.Count; i++)
196 Assert.AreEqual(i, fieldsInDeclarationOrder[i].Index);
199 Assert.AreEqual(nestedType, messageType.NestedTypes[0]);
200 Assert.AreEqual(nestedType, messageType.FindDescriptor<MessageDescriptor>("NestedMessage"));
201 Assert.Null(messageType.FindDescriptor<MessageDescriptor>("NoSuchType"));
202 for (int i = 0; i < messageType.NestedTypes.Count; i++)
204 Assert.AreEqual(i, messageType.NestedTypes[i].Index);
207 Assert.AreEqual(messageType.EnumTypes[0], messageType.FindDescriptor<EnumDescriptor>("NestedEnum"));
208 Assert.Null(messageType.FindDescriptor<EnumDescriptor>("NoSuchType"));
209 for (int i = 0; i < messageType.EnumTypes.Count; i++)
211 Assert.AreEqual(i, messageType.EnumTypes[i].Index);
216 public void FieldDescriptor_GeneratedCode()
218 TestFieldDescriptor(UnittestProto3Reflection.Descriptor, TestAllTypes.Descriptor, ForeignMessage.Descriptor, ImportMessage.Descriptor);
222 public void FieldDescriptor_BuildFromByteStrings()
224 // The descriptors have to be supplied in an order such that all the
225 // dependencies come before the descriptors depending on them.
226 var descriptorData = new List<ByteString>
228 UnittestImportPublicProto3Reflection.Descriptor.SerializedData,
229 UnittestImportProto3Reflection.Descriptor.SerializedData,
230 UnittestProto3Reflection.Descriptor.SerializedData
232 var converted = FileDescriptor.BuildFromByteStrings(descriptorData);
235 converted[2].FindTypeByName<MessageDescriptor>("TestAllTypes"),
236 converted[2].FindTypeByName<MessageDescriptor>("ForeignMessage"),
237 converted[1].FindTypeByName<MessageDescriptor>("ImportMessage"));
240 public void TestFieldDescriptor(
241 FileDescriptor unitTestProto3Descriptor,
242 MessageDescriptor testAllTypesDescriptor,
243 MessageDescriptor foreignMessageDescriptor,
244 MessageDescriptor importMessageDescriptor)
246 FieldDescriptor primitiveField = testAllTypesDescriptor.FindDescriptor<FieldDescriptor>("single_int32");
247 FieldDescriptor enumField = testAllTypesDescriptor.FindDescriptor<FieldDescriptor>("single_nested_enum");
248 FieldDescriptor foreignMessageField = testAllTypesDescriptor.FindDescriptor<FieldDescriptor>("single_foreign_message");
249 FieldDescriptor importMessageField = testAllTypesDescriptor.FindDescriptor<FieldDescriptor>("single_import_message");
251 Assert.AreEqual("single_int32", primitiveField.Name);
252 Assert.AreEqual("protobuf_unittest3.TestAllTypes.single_int32",
253 primitiveField.FullName);
254 Assert.AreEqual(1, primitiveField.FieldNumber);
255 Assert.AreEqual(testAllTypesDescriptor, primitiveField.ContainingType);
256 Assert.AreEqual(unitTestProto3Descriptor, primitiveField.File);
257 Assert.AreEqual(FieldType.Int32, primitiveField.FieldType);
258 Assert.IsNull(primitiveField.Proto.Options);
260 Assert.AreEqual("single_nested_enum", enumField.Name);
261 Assert.AreEqual(FieldType.Enum, enumField.FieldType);
262 Assert.AreEqual(testAllTypesDescriptor.EnumTypes[0], enumField.EnumType);
264 Assert.AreEqual("single_foreign_message", foreignMessageField.Name);
265 Assert.AreEqual(FieldType.Message, foreignMessageField.FieldType);
266 Assert.AreEqual(foreignMessageDescriptor, foreignMessageField.MessageType);
268 Assert.AreEqual("single_import_message", importMessageField.Name);
269 Assert.AreEqual(FieldType.Message, importMessageField.FieldType);
270 Assert.AreEqual(importMessageDescriptor, importMessageField.MessageType);
274 public void FieldDescriptorLabel()
276 FieldDescriptor singleField =
277 TestAllTypes.Descriptor.FindDescriptor<FieldDescriptor>("single_int32");
278 FieldDescriptor repeatedField =
279 TestAllTypes.Descriptor.FindDescriptor<FieldDescriptor>("repeated_int32");
281 Assert.IsFalse(singleField.IsRepeated);
282 Assert.IsTrue(repeatedField.IsRepeated);
286 public void EnumDescriptor()
288 // Note: this test is a bit different to the Java version because there's no static way of getting to the descriptor
289 EnumDescriptor enumType = UnittestProto3Reflection.Descriptor.FindTypeByName<EnumDescriptor>("ForeignEnum");
290 EnumDescriptor nestedType = TestAllTypes.Descriptor.FindDescriptor<EnumDescriptor>("NestedEnum");
292 Assert.AreEqual("ForeignEnum", enumType.Name);
293 Assert.AreEqual("protobuf_unittest3.ForeignEnum", enumType.FullName);
294 Assert.AreEqual(UnittestProto3Reflection.Descriptor, enumType.File);
295 Assert.Null(enumType.ContainingType);
296 Assert.Null(enumType.Proto.Options);
298 Assert.AreEqual("NestedEnum", nestedType.Name);
299 Assert.AreEqual("protobuf_unittest3.TestAllTypes.NestedEnum",
300 nestedType.FullName);
301 Assert.AreEqual(UnittestProto3Reflection.Descriptor, nestedType.File);
302 Assert.AreEqual(TestAllTypes.Descriptor, nestedType.ContainingType);
304 EnumValueDescriptor value = enumType.FindValueByName("FOREIGN_FOO");
305 Assert.AreEqual(value, enumType.Values[1]);
306 Assert.AreEqual("FOREIGN_FOO", value.Name);
307 Assert.AreEqual(4, value.Number);
308 Assert.AreEqual((int) ForeignEnum.ForeignFoo, value.Number);
309 Assert.AreEqual(value, enumType.FindValueByNumber(4));
310 Assert.Null(enumType.FindValueByName("NO_SUCH_VALUE"));
311 for (int i = 0; i < enumType.Values.Count; i++)
313 Assert.AreEqual(i, enumType.Values[i].Index);
318 public void OneofDescriptor()
320 OneofDescriptor descriptor = TestAllTypes.Descriptor.FindDescriptor<OneofDescriptor>("oneof_field");
321 Assert.AreEqual("oneof_field", descriptor.Name);
322 Assert.AreEqual("protobuf_unittest3.TestAllTypes.oneof_field", descriptor.FullName);
324 var expectedFields = new[] {
325 TestAllTypes.OneofBytesFieldNumber,
326 TestAllTypes.OneofNestedMessageFieldNumber,
327 TestAllTypes.OneofStringFieldNumber,
328 TestAllTypes.OneofUint32FieldNumber }
329 .Select(fieldNumber => TestAllTypes.Descriptor.FindFieldByNumber(fieldNumber))
331 foreach (var field in expectedFields)
333 Assert.AreSame(descriptor, field.ContainingOneof);
336 CollectionAssert.AreEquivalent(expectedFields, descriptor.Fields);
340 public void MapEntryMessageDescriptor()
342 var descriptor = MapWellKnownTypes.Descriptor.NestedTypes[0];
343 Assert.IsNull(descriptor.Parser);
344 Assert.IsNull(descriptor.ClrType);
345 Assert.IsNull(descriptor.Fields[1].Accessor);
348 // From TestFieldOrdering:
349 // string my_string = 11;
351 // float my_float = 101;
352 // NestedMessage single_nested_message = 200;
354 public void FieldListOrderings()
356 var fields = TestFieldOrderings.Descriptor.Fields;
357 Assert.AreEqual(new[] { 11, 1, 101, 200 }, fields.InDeclarationOrder().Select(x => x.FieldNumber));
358 Assert.AreEqual(new[] { 1, 11, 101, 200 }, fields.InFieldNumberOrder().Select(x => x.FieldNumber));
363 public void DescriptorProtoFileDescriptor()
365 var descriptor = Google.Protobuf.Reflection.FileDescriptor.DescriptorProtoFileDescriptor;
366 Assert.AreEqual("google/protobuf/descriptor.proto", descriptor.Name);