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+// Protocol Buffers - Google's data interchange format
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+// Copyright 2017 Google Inc. All rights reserved.
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+// https://developers.google.com/protocol-buffers/
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+//
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+// Redistribution and use in source and binary forms, with or without
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+// modification, are permitted provided that the following conditions are
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+// met:
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+//
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+// * Redistributions of source code must retain the above copyright
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+// notice, this list of conditions and the following disclaimer.
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+// * Redistributions in binary form must reproduce the above
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+// copyright notice, this list of conditions and the following disclaimer
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+// in the documentation and/or other materials provided with the
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+// distribution.
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+// * Neither the name of Google Inc. nor the names of its
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+// contributors may be used to endorse or promote products derived from
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+// this software without specific prior written permission.
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+//
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+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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+
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+#import "GPBTestUtilities.h"
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+
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+#import "GPBExtensionRegistry.h"
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+#import "google/protobuf/Unittest.pbobjc.h"
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+
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+@interface GPBExtensionRegistryTest : GPBTestCase
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+@end
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+
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+@implementation GPBExtensionRegistryTest
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+
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+- (void)testBasics {
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+ GPBExtensionRegistry *reg = [[[GPBExtensionRegistry alloc] init] autorelease];
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+ XCTAssertNotNil(reg);
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+
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+ XCTAssertNil([reg extensionForDescriptor:[TestAllExtensions descriptor]
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+ fieldNumber:1]);
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+ XCTAssertNil([reg extensionForDescriptor:[TestAllTypes descriptor]
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+ fieldNumber:1]);
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+
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+ [reg addExtension:[UnittestRoot optionalInt32Extension]];
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+ [reg addExtension:[UnittestRoot packedInt64Extension]];
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+
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+ XCTAssertTrue([reg extensionForDescriptor:[TestAllExtensions descriptor] fieldNumber:1] ==
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+ [UnittestRoot optionalInt32Extension]); // ptr equality
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+ XCTAssertNil([reg extensionForDescriptor:[TestAllTypes descriptor]
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+ fieldNumber:1]);
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+ XCTAssertTrue([reg extensionForDescriptor:[TestPackedExtensions descriptor] fieldNumber:91] ==
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+ [UnittestRoot packedInt64Extension]); // ptr equality
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+}
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+
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+- (void)testCopy {
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+ GPBExtensionRegistry *reg1 = [[[GPBExtensionRegistry alloc] init] autorelease];
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+ [reg1 addExtension:[UnittestRoot optionalInt32Extension]];
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+
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+ GPBExtensionRegistry *reg2 = [[reg1 copy] autorelease];
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+ XCTAssertNotNil(reg2);
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+
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+ XCTAssertTrue([reg1 extensionForDescriptor:[TestAllExtensions descriptor] fieldNumber:1] ==
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+ [UnittestRoot optionalInt32Extension]); // ptr equality
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+ XCTAssertTrue([reg2 extensionForDescriptor:[TestAllExtensions descriptor] fieldNumber:1] ==
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+ [UnittestRoot optionalInt32Extension]); // ptr equality
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+
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+ // Message class that had registered extension(s) at the -copy time.
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+
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+ [reg1 addExtension:[UnittestRoot optionalBoolExtension]];
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+ [reg2 addExtension:[UnittestRoot optionalStringExtension]];
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+
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+ XCTAssertTrue([reg1 extensionForDescriptor:[TestAllExtensions descriptor] fieldNumber:13] ==
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+ [UnittestRoot optionalBoolExtension]); // ptr equality
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+ XCTAssertNil([reg1 extensionForDescriptor:[TestAllExtensions descriptor] fieldNumber:14]);
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+ XCTAssertNil([reg2 extensionForDescriptor:[TestAllExtensions descriptor] fieldNumber:13]);
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+ XCTAssertTrue([reg2 extensionForDescriptor:[TestAllExtensions descriptor] fieldNumber:14] ==
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+ [UnittestRoot optionalStringExtension]); // ptr equality
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+
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+ // Message class that did not have any registered extensions at the -copy time.
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+
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+ [reg1 addExtension:[UnittestRoot packedInt64Extension]];
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+ [reg2 addExtension:[UnittestRoot packedSint32Extension]];
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+
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+ XCTAssertTrue([reg1 extensionForDescriptor:[TestPackedExtensions descriptor] fieldNumber:91] ==
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+ [UnittestRoot packedInt64Extension]); // ptr equality
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+ XCTAssertNil([reg1 extensionForDescriptor:[TestPackedExtensions descriptor] fieldNumber:94]);
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+ XCTAssertNil([reg2 extensionForDescriptor:[TestPackedExtensions descriptor] fieldNumber:91]);
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+ XCTAssertTrue([reg2 extensionForDescriptor:[TestPackedExtensions descriptor] fieldNumber:94] ==
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+ [UnittestRoot packedSint32Extension]); // ptr equality
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+
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+}
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+
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+- (void)testAddExtensions {
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+ GPBExtensionRegistry *reg1 = [[[GPBExtensionRegistry alloc] init] autorelease];
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+ [reg1 addExtension:[UnittestRoot optionalInt32Extension]];
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+
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+ GPBExtensionRegistry *reg2 = [[[GPBExtensionRegistry alloc] init] autorelease];
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+
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+ XCTAssertNil([reg2 extensionForDescriptor:[TestAllExtensions descriptor]
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+ fieldNumber:1]);
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+
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+ [reg2 addExtensions:reg1];
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+
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+ XCTAssertTrue([reg2 extensionForDescriptor:[TestAllExtensions descriptor] fieldNumber:1] ==
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+ [UnittestRoot optionalInt32Extension]); // ptr equality
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+
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+ // Confirm adding to the first doesn't add to the second.
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+
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+ [reg1 addExtension:[UnittestRoot optionalBoolExtension]];
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+ [reg1 addExtension:[UnittestRoot packedInt64Extension]];
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+
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+ XCTAssertTrue([reg1 extensionForDescriptor:[TestAllExtensions descriptor] fieldNumber:13] ==
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+ [UnittestRoot optionalBoolExtension]); // ptr equality
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+ XCTAssertTrue([reg1 extensionForDescriptor:[TestPackedExtensions descriptor] fieldNumber:91] ==
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+ [UnittestRoot packedInt64Extension]); // ptr equality
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+ XCTAssertNil([reg2 extensionForDescriptor:[TestAllExtensions descriptor] fieldNumber:13]);
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+ XCTAssertNil([reg2 extensionForDescriptor:[TestPackedExtensions descriptor] fieldNumber:91]);
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+
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+ // Confirm adding to the second doesn't add to the first.
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+
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+ [reg2 addExtension:[UnittestRoot optionalStringExtension]];
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+ [reg2 addExtension:[UnittestRoot packedSint32Extension]];
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+
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+ XCTAssertNil([reg1 extensionForDescriptor:[TestAllExtensions descriptor] fieldNumber:14]);
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+ XCTAssertNil([reg1 extensionForDescriptor:[TestPackedExtensions descriptor] fieldNumber:94]);
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+ XCTAssertTrue([reg2 extensionForDescriptor:[TestAllExtensions descriptor] fieldNumber:14] ==
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+ [UnittestRoot optionalStringExtension]); // ptr equality
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+ XCTAssertTrue([reg2 extensionForDescriptor:[TestPackedExtensions descriptor] fieldNumber:94] ==
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+ [UnittestRoot packedSint32Extension]); // ptr equality
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+}
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+
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+@end
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Thomas Van Lenten