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protobuf/objectivec/Tests/GPBUnknownFieldSetTest.m

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// Protocol Buffers - Google's data interchange format
// Copyright 2008 Google Inc. All rights reserved.
//
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file or at
// https://developers.google.com/open-source/licenses/bsd
#import "GPBTestUtilities.h"
#import "GPBUnknownFieldSet.h"
#import "GPBUnknownFieldSet_PackagePrivate.h"
#import "GPBUnknownField_PackagePrivate.h"
#import "objectivec/Tests/Unittest.pbobjc.h"
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wdeprecated-declarations"
@interface GPBUnknownFieldSet (GPBUnknownFieldSetTest)
- (void)getTags:(int32_t*)tags;
@end
@interface UnknownFieldSetTest : GPBTestCase {
@private
TestAllTypes* allFields_;
NSData* allFieldsData_;
// An empty message that has been parsed from allFieldsData. So, it has
// unknown fields of every type.
TestEmptyMessage* emptyMessage_;
GPBUnknownFieldSet* unknownFields_;
}
@end
@implementation UnknownFieldSetTest
- (void)setUp {
allFields_ = [self allSetRepeatedCount:kGPBDefaultRepeatCount];
allFieldsData_ = [allFields_ data];
emptyMessage_ = [TestEmptyMessage parseFromData:allFieldsData_ error:NULL];
unknownFields_ = emptyMessage_.unknownFields;
}
- (void)testInvalidFieldNumber {
GPBUnknownFieldSet* set = [[[GPBUnknownFieldSet alloc] init] autorelease];
GPBUnknownField* field = [[[GPBUnknownField alloc] initWithNumber:0] autorelease];
XCTAssertThrowsSpecificNamed([set addField:field], NSException, NSInvalidArgumentException);
}
- (void)testEqualityAndHash {
// Empty
GPBUnknownFieldSet* set1 = [[[GPBUnknownFieldSet alloc] init] autorelease];
XCTAssertTrue([set1 isEqual:set1]);
XCTAssertFalse([set1 isEqual:@"foo"]);
GPBUnknownFieldSet* set2 = [[[GPBUnknownFieldSet alloc] init] autorelease];
XCTAssertEqualObjects(set1, set2);
XCTAssertEqual([set1 hash], [set2 hash]);
// Varint
GPBUnknownField* field1 = [[[GPBUnknownField alloc] initWithNumber:1] autorelease];
[field1 addVarint:1];
[set1 addField:field1];
XCTAssertNotEqualObjects(set1, set2);
GPBUnknownField* field2 = [[[GPBUnknownField alloc] initWithNumber:1] autorelease];
[field2 addVarint:1];
[set2 addField:field2];
XCTAssertEqualObjects(set1, set2);
XCTAssertEqual([set1 hash], [set2 hash]);
// Fixed32
field1 = [[[GPBUnknownField alloc] initWithNumber:2] autorelease];
[field1 addFixed32:2];
[set1 addField:field1];
XCTAssertNotEqualObjects(set1, set2);
field2 = [[[GPBUnknownField alloc] initWithNumber:2] autorelease];
[field2 addFixed32:2];
[set2 addField:field2];
XCTAssertEqualObjects(set1, set2);
XCTAssertEqual([set1 hash], [set2 hash]);
// Fixed64
field1 = [[[GPBUnknownField alloc] initWithNumber:3] autorelease];
[field1 addFixed64:3];
[set1 addField:field1];
XCTAssertNotEqualObjects(set1, set2);
field2 = [[[GPBUnknownField alloc] initWithNumber:3] autorelease];
[field2 addFixed64:3];
[set2 addField:field2];
XCTAssertEqualObjects(set1, set2);
XCTAssertEqual([set1 hash], [set2 hash]);
// LengthDelimited
field1 = [[[GPBUnknownField alloc] initWithNumber:4] autorelease];
[field1 addLengthDelimited:DataFromCStr("foo")];
[set1 addField:field1];
XCTAssertNotEqualObjects(set1, set2);
field2 = [[[GPBUnknownField alloc] initWithNumber:4] autorelease];
[field2 addLengthDelimited:DataFromCStr("foo")];
[set2 addField:field2];
XCTAssertEqualObjects(set1, set2);
XCTAssertEqual([set1 hash], [set2 hash]);
// Group
GPBUnknownFieldSet* group1 = [[[GPBUnknownFieldSet alloc] init] autorelease];
GPBUnknownField* fieldGroup1 = [[[GPBUnknownField alloc] initWithNumber:10] autorelease];
[fieldGroup1 addVarint:1];
[group1 addField:fieldGroup1];
GPBUnknownFieldSet* group2 = [[[GPBUnknownFieldSet alloc] init] autorelease];
GPBUnknownField* fieldGroup2 = [[[GPBUnknownField alloc] initWithNumber:10] autorelease];
[fieldGroup2 addVarint:1];
[group2 addField:fieldGroup2];
field1 = [[[GPBUnknownField alloc] initWithNumber:5] autorelease];
[field1 addGroup:group1];
[set1 addField:field1];
XCTAssertNotEqualObjects(set1, set2);
field2 = [[[GPBUnknownField alloc] initWithNumber:5] autorelease];
[field2 addGroup:group2];
[set2 addField:field2];
XCTAssertEqualObjects(set1, set2);
XCTAssertEqual([set1 hash], [set2 hash]);
// Exercise description for completeness.
XCTAssertTrue(set1.description.length > 10);
}
// Constructs a protocol buffer which contains fields with all the same
// numbers as allFieldsData except that each field is some other wire
// type.
- (NSData*)getBizarroData {
GPBUnknownFieldSet* bizarroFields = [[[GPBUnknownFieldSet alloc] init] autorelease];
NSUInteger count = [unknownFields_ countOfFields];
int32_t* tags = malloc(count * sizeof(int32_t));
if (!tags) {
XCTFail(@"Failed to make scratch buffer for testing");
return [NSData data];
}
@try {
[unknownFields_ getTags:tags];
for (NSUInteger i = 0; i < count; ++i) {
int32_t tag = tags[i];
GPBUnknownField* field = [unknownFields_ getField:tag];
if (field.varintList.count == 0) {
// Original field is not a varint, so use a varint.
GPBUnknownField* varintField = [[[GPBUnknownField alloc] initWithNumber:tag] autorelease];
[varintField addVarint:1];
[bizarroFields addField:varintField];
} else {
// Original field *is* a varint, so use something else.
GPBUnknownField* fixed32Field = [[[GPBUnknownField alloc] initWithNumber:tag] autorelease];
[fixed32Field addFixed32:1];
[bizarroFields addField:fixed32Field];
}
}
} @finally {
free(tags);
}
return [bizarroFields data];
}
- (void)testSerialize {
// Check that serializing the UnknownFieldSet produces the original data
// again.
NSData* data = [emptyMessage_ data];
XCTAssertEqualObjects(allFieldsData_, data);
}
- (void)testCopyFrom {
TestEmptyMessage* message = [TestEmptyMessage message];
[message mergeFrom:emptyMessage_];
XCTAssertEqualObjects(emptyMessage_.data, message.data);
}
- (void)testMergeFrom {
GPBUnknownFieldSet* set1 = [[[GPBUnknownFieldSet alloc] init] autorelease];
GPBUnknownField* field = [[[GPBUnknownField alloc] initWithNumber:2] autorelease];
[field addVarint:2];
[set1 addField:field];
field = [[[GPBUnknownField alloc] initWithNumber:3] autorelease];
[field addVarint:4];
[set1 addField:field];
field = [[[GPBUnknownField alloc] initWithNumber:4] autorelease];
[field addFixed32:6];
[set1 addField:field];
field = [[[GPBUnknownField alloc] initWithNumber:5] autorelease];
[field addFixed64:20];
[set1 addField:field];
field = [[[GPBUnknownField alloc] initWithNumber:10] autorelease];
[field addLengthDelimited:DataFromCStr("data1")];
[set1 addField:field];
GPBUnknownFieldSet* group1 = [[[GPBUnknownFieldSet alloc] init] autorelease];
GPBUnknownField* fieldGroup1 = [[[GPBUnknownField alloc] initWithNumber:200] autorelease];
[fieldGroup1 addVarint:100];
[group1 addField:fieldGroup1];
field = [[[GPBUnknownField alloc] initWithNumber:11] autorelease];
[field addGroup:group1];
[set1 addField:field];
GPBUnknownFieldSet* set2 = [[[GPBUnknownFieldSet alloc] init] autorelease];
field = [[[GPBUnknownField alloc] initWithNumber:1] autorelease];
[field addVarint:1];
[set2 addField:field];
field = [[[GPBUnknownField alloc] initWithNumber:3] autorelease];
[field addVarint:3];
[set2 addField:field];
field = [[[GPBUnknownField alloc] initWithNumber:4] autorelease];
[field addFixed32:7];
[set2 addField:field];
field = [[[GPBUnknownField alloc] initWithNumber:5] autorelease];
[field addFixed64:30];
[set2 addField:field];
field = [[[GPBUnknownField alloc] initWithNumber:10] autorelease];
[field addLengthDelimited:DataFromCStr("data2")];
[set2 addField:field];
GPBUnknownFieldSet* group2 = [[[GPBUnknownFieldSet alloc] init] autorelease];
GPBUnknownField* fieldGroup2 = [[[GPBUnknownField alloc] initWithNumber:201] autorelease];
[fieldGroup2 addVarint:99];
[group2 addField:fieldGroup2];
field = [[[GPBUnknownField alloc] initWithNumber:11] autorelease];
[field addGroup:group2];
[set2 addField:field];
GPBUnknownFieldSet* set3 = [[[GPBUnknownFieldSet alloc] init] autorelease];
field = [[[GPBUnknownField alloc] initWithNumber:1] autorelease];
[field addVarint:1];
[set3 addField:field];
field = [[[GPBUnknownField alloc] initWithNumber:2] autorelease];
[field addVarint:2];
[set3 addField:field];
field = [[[GPBUnknownField alloc] initWithNumber:3] autorelease];
[field addVarint:4];
[set3 addField:field];
[field addVarint:3];
[set3 addField:field];
field = [[[GPBUnknownField alloc] initWithNumber:4] autorelease];
[field addFixed32:6];
[field addFixed32:7];
[set3 addField:field];
field = [[[GPBUnknownField alloc] initWithNumber:5] autorelease];
[field addFixed64:20];
[field addFixed64:30];
[set3 addField:field];
field = [[[GPBUnknownField alloc] initWithNumber:10] autorelease];
[field addLengthDelimited:DataFromCStr("data1")];
[field addLengthDelimited:DataFromCStr("data2")];
[set3 addField:field];
GPBUnknownFieldSet* group3a = [[[GPBUnknownFieldSet alloc] init] autorelease];
GPBUnknownField* fieldGroup3a1 = [[[GPBUnknownField alloc] initWithNumber:200] autorelease];
[fieldGroup3a1 addVarint:100];
[group3a addField:fieldGroup3a1];
GPBUnknownFieldSet* group3b = [[[GPBUnknownFieldSet alloc] init] autorelease];
GPBUnknownField* fieldGroup3b2 = [[[GPBUnknownField alloc] initWithNumber:201] autorelease];
[fieldGroup3b2 addVarint:99];
[group3b addField:fieldGroup3b2];
field = [[[GPBUnknownField alloc] initWithNumber:11] autorelease];
[field addGroup:group1];
[field addGroup:group3b];
[set3 addField:field];
TestEmptyMessage* source1 = [TestEmptyMessage message];
[source1 setUnknownFields:set1];
TestEmptyMessage* source2 = [TestEmptyMessage message];
[source2 setUnknownFields:set2];
TestEmptyMessage* source3 = [TestEmptyMessage message];
[source3 setUnknownFields:set3];
TestEmptyMessage* destination1 = [TestEmptyMessage message];
[destination1 mergeFrom:source1];
[destination1 mergeFrom:source2];
TestEmptyMessage* destination2 = [TestEmptyMessage message];
[destination2 mergeFrom:source3];
XCTAssertEqualObjects(destination1.unknownFields, destination2.unknownFields);
XCTAssertEqualObjects(destination1.unknownFields, source3.unknownFields);
XCTAssertEqualObjects(destination2.unknownFields, source3.unknownFields);
XCTAssertEqualObjects(destination1.data, destination2.data);
XCTAssertEqualObjects(destination1.data, source3.data);
XCTAssertEqualObjects(destination2.data, source3.data);
}
- (void)testClearMessage {
TestEmptyMessage* message = [TestEmptyMessage message];
[message mergeFrom:emptyMessage_];
[message clear];
XCTAssertEqual(message.serializedSize, (size_t)0);
}
- (void)testParseKnownAndUnknown {
// Test mixing known and unknown fields when parsing.
GPBUnknownFieldSet* fields = [[unknownFields_ copy] autorelease];
GPBUnknownField* field = [[[GPBUnknownField alloc] initWithNumber:123456] autorelease];
[field addVarint:654321];
[fields addField:field];
NSData* data = fields.data;
TestAllTypes* destination = [TestAllTypes parseFromData:data error:NULL];
[self assertAllFieldsSet:destination repeatedCount:kGPBDefaultRepeatCount];
XCTAssertEqual(destination.unknownFields.countOfFields, (NSUInteger)1);
GPBUnknownField* field2 = [destination.unknownFields getField:123456];
XCTAssertEqual(field2.varintList.count, (NSUInteger)1);
XCTAssertEqual(654321ULL, [field2.varintList valueAtIndex:0]);
}
- (void)testWrongTypeTreatedAsUnknown {
// Test that fields of the wrong wire type are treated like unknown fields
// when parsing.
NSData* bizarroData = [self getBizarroData];
TestAllTypes* allTypesMessage = [TestAllTypes parseFromData:bizarroData error:NULL];
TestEmptyMessage* emptyMessage = [TestEmptyMessage parseFromData:bizarroData error:NULL];
// All fields should have been interpreted as unknown, so the debug strings
// should be the same.
XCTAssertEqualObjects(emptyMessage.data, allTypesMessage.data);
}
- (void)testUnknownExtensions {
// Make sure fields are properly parsed to the UnknownFieldSet even when
// they are declared as extension numbers.
TestEmptyMessageWithExtensions* message =
[TestEmptyMessageWithExtensions parseFromData:allFieldsData_ error:NULL];
XCTAssertEqual(unknownFields_.countOfFields, message.unknownFields.countOfFields);
XCTAssertEqualObjects(allFieldsData_, message.data);
// Just confirm as known extensions, they don't go into unknown data and end up in the
// extensions dictionary.
TestAllExtensions* allExtensionsMessage =
[TestAllExtensions parseFromData:allFieldsData_
extensionRegistry:[UnittestRoot extensionRegistry]
error:NULL];
XCTAssertEqual(allExtensionsMessage.unknownFields.countOfFields, (NSUInteger)0);
XCTAssertEqualObjects([allExtensionsMessage data], allFieldsData_);
}
- (void)testWrongExtensionTypeTreatedAsUnknown {
// Test that fields of the wrong wire type are treated like unknown fields
// when parsing extensions.
NSData* bizarroData = [self getBizarroData];
TestAllExtensions* allExtensionsMessage =
[TestAllExtensions parseFromData:bizarroData
extensionRegistry:[UnittestRoot extensionRegistry]
error:NULL];
TestEmptyMessage* emptyMessage = [TestEmptyMessage parseFromData:bizarroData error:NULL];
// All fields should have been interpreted as unknown, so the debug strings
// should be the same.
XCTAssertEqualObjects(emptyMessage.data, allExtensionsMessage.data);
}
- (void)testLargeVarint {
GPBUnknownFieldSet* fields = [[unknownFields_ copy] autorelease];
GPBUnknownField* field = [[[GPBUnknownField alloc] initWithNumber:1] autorelease];
[field addVarint:0x7FFFFFFFFFFFFFFFL];
[fields addField:field];
NSData* data = [fields data];
GPBUnknownFieldSet* parsed = [[[GPBUnknownFieldSet alloc] init] autorelease];
GPBCodedInputStream* input = [[[GPBCodedInputStream alloc] initWithData:data] autorelease];
[parsed mergeFromCodedInputStream:input];
GPBUnknownField* field2 = [parsed getField:1];
XCTAssertEqual(field2.varintList.count, (NSUInteger)1);
XCTAssertEqual(0x7FFFFFFFFFFFFFFFULL, [field2.varintList valueAtIndex:0]);
}
static NSData* DataForGroupsOfDepth(NSUInteger depth) {
NSMutableData* data = [NSMutableData dataWithCapacity:0];
uint32_t byte = 35; // 35 = 0b100011 -> field 4/start group
for (NSUInteger i = 0; i < depth; ++i) {
[data appendBytes:&byte length:1];
}
byte = 8; // 8 = 0b1000, -> field 1/varint
[data appendBytes:&byte length:1];
byte = 1; // 1 -> varint value of 1
[data appendBytes:&byte length:1];
byte = 36; // 36 = 0b100100 -> field 4/end group
for (NSUInteger i = 0; i < depth; ++i) {
[data appendBytes:&byte length:1];
}
return data;
}
- (void)testParsingNestingGroupData {
// 35 = 0b100011 -> field 4/start group
// 36 = 0b100100 -> field 4/end group
// 43 = 0b101011 -> field 5/end group
// 44 = 0b101100 -> field 5/end group
// 8 = 0b1000, 1 -> field 1/varint, value of 1
// 21 = 0b10101, 0x78, 0x56, 0x34, 0x12 -> field 2/fixed32, value of 0x12345678
// 25 = 0b11001, 0xf0, 0xde, 0xbc, 0x9a, 0x78, 0x56, 0x34, 0x12 -> field 3/fixed64,
// value of 0x123456789abcdef0LL
// 50 = 0b110010, 0x0 -> field 6/length delimited, length 0
// 50 = 0b110010, 0x1, 42 -> field 6/length delimited, length 1, byte 42
// 0 -> field 0 which is invalid/varint
// 15 = 0b1111 -> field 1, wire type 7 which is invalid
TestEmptyMessage* m = [TestEmptyMessage parseFromData:DataFromBytes(35, 36)
error:NULL]; // empty group
XCTAssertEqual(m.unknownFields.countOfFields, (NSUInteger)1);
GPBUnknownField* field = [m.unknownFields getField:4];
XCTAssertEqual(field.groupList.count, (NSUInteger)1);
GPBUnknownFieldSet* group = field.groupList[0];
XCTAssertEqual(group.countOfFields, (NSUInteger)0);
m = [TestEmptyMessage parseFromData:DataFromBytes(35, 8, 1, 36) error:NULL]; // varint
XCTAssertEqual(m.unknownFields.countOfFields, (NSUInteger)1);
field = [m.unknownFields getField:4];
XCTAssertEqual(field.groupList.count, (NSUInteger)1);
group = field.groupList[0];
field = [group getField:1];
XCTAssertEqual(field.varintList.count, (NSUInteger)1);
XCTAssertEqual([field.varintList valueAtIndex:0], 1);
m = [TestEmptyMessage parseFromData:DataFromBytes(35, 21, 0x78, 0x56, 0x34, 0x12, 36)
error:NULL]; // fixed32
XCTAssertEqual(m.unknownFields.countOfFields, (NSUInteger)1);
field = [m.unknownFields getField:4];
XCTAssertEqual(field.groupList.count, (NSUInteger)1);
group = field.groupList[0];
field = [group getField:2];
XCTAssertEqual(field.fixed32List.count, (NSUInteger)1);
XCTAssertEqual([field.fixed32List valueAtIndex:0], 0x12345678);
m = [TestEmptyMessage
parseFromData:DataFromBytes(35, 25, 0xf0, 0xde, 0xbc, 0x9a, 0x78, 0x56, 0x34, 0x12,
36)
error:NULL]; // fixed64
XCTAssertEqual(m.unknownFields.countOfFields, (NSUInteger)1);
field = [m.unknownFields getField:4];
XCTAssertEqual(field.groupList.count, (NSUInteger)1);
group = field.groupList[0];
field = [group getField:3];
XCTAssertEqual(field.fixed64List.count, (NSUInteger)1);
XCTAssertEqual([field.fixed64List valueAtIndex:0], 0x123456789abcdef0LL);
m = [TestEmptyMessage parseFromData:DataFromBytes(35, 50, 0, 36)
error:NULL]; // length delimited, length 0
XCTAssertEqual(m.unknownFields.countOfFields, (NSUInteger)1);
field = [m.unknownFields getField:4];
XCTAssertEqual(field.groupList.count, (NSUInteger)1);
group = field.groupList[0];
field = [group getField:6];
XCTAssertEqual(field.lengthDelimitedList.count, (NSUInteger)1);
XCTAssertEqualObjects(field.lengthDelimitedList[0], [NSData data]);
m = [TestEmptyMessage parseFromData:DataFromBytes(35, 50, 1, 42, 36)
error:NULL]; // length delimited, length 1, byte 42
XCTAssertEqual(m.unknownFields.countOfFields, (NSUInteger)1);
field = [m.unknownFields getField:4];
XCTAssertEqual(field.groupList.count, (NSUInteger)1);
group = field.groupList[0];
field = [group getField:6];
XCTAssertEqual(field.lengthDelimitedList.count, (NSUInteger)1);
XCTAssertEqualObjects(field.lengthDelimitedList[0], DataFromBytes(42));
m = [TestEmptyMessage parseFromData:DataFromBytes(35, 43, 44, 36) error:NULL]; // Sub group
field = [m.unknownFields getField:4];
XCTAssertEqual(field.groupList.count, (NSUInteger)1);
group = field.groupList[0];
XCTAssertEqual(group.countOfFields, (NSUInteger)1);
field = [group getField:5];
XCTAssertEqual(field.groupList.count, (NSUInteger)1);
group = field.groupList[0];
XCTAssertEqual(group.countOfFields, (NSUInteger)0);
m = [TestEmptyMessage parseFromData:DataFromBytes(35, 8, 1, 43, 8, 2, 44, 36)
error:NULL]; // varint and sub group with varint
XCTAssertEqual(m.unknownFields.countOfFields, (NSUInteger)1);
field = [m.unknownFields getField:4];
XCTAssertEqual(field.groupList.count, (NSUInteger)1);
group = field.groupList[0];
XCTAssertEqual(group.countOfFields, (NSUInteger)2);
field = [group getField:1];
XCTAssertEqual(field.varintList.count, (NSUInteger)1);
XCTAssertEqual([field.varintList valueAtIndex:0], 1);
field = [group getField:5];
XCTAssertEqual(field.groupList.count, (NSUInteger)1);
group = field.groupList[0];
field = [group getField:1];
XCTAssertEqual(field.varintList.count, (NSUInteger)1);
XCTAssertEqual([field.varintList valueAtIndex:0], 2);
XCTAssertNil([TestEmptyMessage parseFromData:DataFromBytes(35, 0, 36)
error:NULL]); // Invalid field number
XCTAssertNil([TestEmptyMessage parseFromData:DataFromBytes(35, 15, 36)
error:NULL]); // Invalid wire type
XCTAssertNil([TestEmptyMessage parseFromData:DataFromBytes(35, 21, 0x78, 0x56, 0x34)
error:NULL]); // truncated fixed32
XCTAssertNil([TestEmptyMessage
parseFromData:DataFromBytes(35, 25, 0xf0, 0xde, 0xbc, 0x9a, 0x78, 0x56,
0x34)
error:NULL]); // truncated fixed64
// Missing end group
XCTAssertNil([TestEmptyMessage parseFromData:DataFromBytes(35) error:NULL]);
XCTAssertNil([TestEmptyMessage parseFromData:DataFromBytes(35, 8, 1) error:NULL]);
XCTAssertNil([TestEmptyMessage parseFromData:DataFromBytes(35, 43) error:NULL]);
XCTAssertNil([TestEmptyMessage parseFromData:DataFromBytes(35, 43, 8, 1) error:NULL]);
// Wrong end group
XCTAssertNil([TestEmptyMessage parseFromData:DataFromBytes(35, 44) error:NULL]);
XCTAssertNil([TestEmptyMessage parseFromData:DataFromBytes(35, 8, 1, 44) error:NULL]);
XCTAssertNil([TestEmptyMessage parseFromData:DataFromBytes(35, 43, 36) error:NULL]);
XCTAssertNil([TestEmptyMessage parseFromData:DataFromBytes(35, 43, 8, 1, 36) error:NULL]);
XCTAssertNil([TestEmptyMessage parseFromData:DataFromBytes(35, 43, 44, 44) error:NULL]);
XCTAssertNil([TestEmptyMessage parseFromData:DataFromBytes(35, 43, 8, 1, 44, 44) error:NULL]);
// This is the same limit as within GPBCodedInputStream.
const NSUInteger kDefaultRecursionLimit = 100;
// That depth parses.
NSData* testData = DataForGroupsOfDepth(kDefaultRecursionLimit);
m = [TestEmptyMessage parseFromData:testData error:NULL];
XCTAssertEqual(m.unknownFields.countOfFields, (NSUInteger)1);
field = [m.unknownFields getField:4];
for (NSUInteger i = 0; i < kDefaultRecursionLimit; ++i) {
XCTAssertEqual(field.varintList.count, (NSUInteger)0);
XCTAssertEqual(field.fixed32List.count, (NSUInteger)0);
XCTAssertEqual(field.fixed64List.count, (NSUInteger)0);
XCTAssertEqual(field.lengthDelimitedList.count, (NSUInteger)0);
XCTAssertEqual(field.groupList.count, (NSUInteger)1);
group = field.groupList[0];
XCTAssertEqual(group.countOfFields, (NSUInteger)1);
field = [group getField:(i < (kDefaultRecursionLimit - 1) ? 4 : 1)];
}
// field is of the inner most group
XCTAssertEqual(field.varintList.count, (NSUInteger)1);
XCTAssertEqual([field.varintList valueAtIndex:0], (NSUInteger)1);
XCTAssertEqual(field.fixed32List.count, (NSUInteger)0);
XCTAssertEqual(field.fixed64List.count, (NSUInteger)0);
XCTAssertEqual(field.lengthDelimitedList.count, (NSUInteger)0);
XCTAssertEqual(field.groupList.count, (NSUInteger)0);
// One more level deep fails.
testData = DataForGroupsOfDepth(kDefaultRecursionLimit + 1);
XCTAssertNil([TestEmptyMessage parseFromData:testData error:NULL]);
}
#pragma mark - Field tests
// Some tests directly on fields since the dictionary in FieldSet can gate
// testing some of these.
- (void)testFieldEqualityAndHash {
GPBUnknownField* field1 = [[[GPBUnknownField alloc] initWithNumber:1] autorelease];
XCTAssertTrue([field1 isEqual:field1]);
XCTAssertFalse([field1 isEqual:@"foo"]);
GPBUnknownField* field2 = [[[GPBUnknownField alloc] initWithNumber:2] autorelease];
XCTAssertNotEqualObjects(field1, field2);
field2 = [[[GPBUnknownField alloc] initWithNumber:1] autorelease];
XCTAssertEqualObjects(field1, field2);
XCTAssertEqual([field1 hash], [field2 hash]);
// Varint
[field1 addVarint:10];
XCTAssertNotEqualObjects(field1, field2);
[field2 addVarint:10];
XCTAssertEqualObjects(field1, field2);
XCTAssertEqual([field1 hash], [field2 hash]);
[field1 addVarint:11];
XCTAssertNotEqualObjects(field1, field2);
[field2 addVarint:11];
XCTAssertEqualObjects(field1, field2);
XCTAssertEqual([field1 hash], [field2 hash]);
// Fixed32
[field1 addFixed32:20];
XCTAssertNotEqualObjects(field1, field2);
[field2 addFixed32:20];
XCTAssertEqualObjects(field1, field2);
XCTAssertEqual([field1 hash], [field2 hash]);
[field1 addFixed32:21];
XCTAssertNotEqualObjects(field1, field2);
[field2 addFixed32:21];
XCTAssertEqualObjects(field1, field2);
XCTAssertEqual([field1 hash], [field2 hash]);
// Fixed64
[field1 addFixed64:30];
XCTAssertNotEqualObjects(field1, field2);
[field2 addFixed64:30];
XCTAssertEqualObjects(field1, field2);
XCTAssertEqual([field1 hash], [field2 hash]);
[field1 addFixed64:31];
XCTAssertNotEqualObjects(field1, field2);
[field2 addFixed64:31];
XCTAssertEqualObjects(field1, field2);
XCTAssertEqual([field1 hash], [field2 hash]);
// LengthDelimited
[field1 addLengthDelimited:DataFromCStr("foo")];
XCTAssertNotEqualObjects(field1, field2);
[field2 addLengthDelimited:DataFromCStr("foo")];
XCTAssertEqualObjects(field1, field2);
XCTAssertEqual([field1 hash], [field2 hash]);
[field1 addLengthDelimited:DataFromCStr("bar")];
XCTAssertNotEqualObjects(field1, field2);
[field2 addLengthDelimited:DataFromCStr("bar")];
XCTAssertEqualObjects(field1, field2);
XCTAssertEqual([field1 hash], [field2 hash]);
// Group
GPBUnknownFieldSet* group = [[[GPBUnknownFieldSet alloc] init] autorelease];
GPBUnknownField* fieldGroup = [[[GPBUnknownField alloc] initWithNumber:100] autorelease];
[fieldGroup addVarint:100];
[group addField:fieldGroup];
[field1 addGroup:group];
XCTAssertNotEqualObjects(field1, field2);
group = [[[GPBUnknownFieldSet alloc] init] autorelease];
fieldGroup = [[[GPBUnknownField alloc] initWithNumber:100] autorelease];
[fieldGroup addVarint:100];
[group addField:fieldGroup];
[field2 addGroup:group];
XCTAssertEqualObjects(field1, field2);
XCTAssertEqual([field1 hash], [field2 hash]);
group = [[[GPBUnknownFieldSet alloc] init] autorelease];
fieldGroup = [[[GPBUnknownField alloc] initWithNumber:101] autorelease];
[fieldGroup addVarint:101];
[group addField:fieldGroup];
[field1 addGroup:group];
XCTAssertNotEqualObjects(field1, field2);
group = [[[GPBUnknownFieldSet alloc] init] autorelease];
fieldGroup = [[[GPBUnknownField alloc] initWithNumber:101] autorelease];
[fieldGroup addVarint:101];
[group addField:fieldGroup];
[field2 addGroup:group];
XCTAssertEqualObjects(field1, field2);
XCTAssertEqual([field1 hash], [field2 hash]);
// Exercise description for completeness.
XCTAssertTrue(field1.description.length > 10);
}
- (void)testMergingFields {
GPBUnknownField* field1 = [[[GPBUnknownField alloc] initWithNumber:1] autorelease];
[field1 addVarint:1];
[field1 addFixed32:2];
[field1 addFixed64:3];
[field1 addLengthDelimited:[NSData dataWithBytes:"hello" length:5]];
[field1 addGroup:[[unknownFields_ copy] autorelease]];
GPBUnknownField* field2 = [[[GPBUnknownField alloc] initWithNumber:1] autorelease];
[field2 mergeFromField:field1];
}
@end
#pragma clang diagnostic pop