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/*
*
* Copyright 2018 gRPC authors.
*
* 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
*
* http://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.
*
*/
#import <XCTest/XCTest.h>
#import "../../GRPCClient/GRPCCallOptions.h"
#import "../../GRPCClient/private/GRPCChannel.h"
#import "../../GRPCClient/private/GRPCChannelPool+Test.h"
#import "../../GRPCClient/private/GRPCChannelPool.h"
#import "../../GRPCClient/private/GRPCCompletionQueue.h"
#import "../../GRPCClient/private/GRPCWrappedCall.h"
static NSString *kDummyHost = @"dummy.host";
static NSString *kDummyPath = @"/dummy/path";
@interface ChannelTests : XCTestCase
@end
@implementation ChannelTests
+ (void)setUp {
grpc_init();
}
- (void)testPooledChannelCreatingChannel {
GRPCCallOptions *options = [[GRPCCallOptions alloc] init];
GRPCChannelConfiguration *config =
[[GRPCChannelConfiguration alloc] initWithHost:kDummyHost callOptions:options];
GRPCPooledChannel *channel = [[GRPCPooledChannel alloc] initWithChannelConfiguration:config];
GRPCCompletionQueue *cq = [GRPCCompletionQueue completionQueue];
GRPCWrappedCall *wrappedCall =
[channel wrappedCallWithPath:kDummyPath completionQueue:cq callOptions:options];
XCTAssertNotNil(channel.wrappedChannel);
(void)wrappedCall;
}
- (void)testTimedDestroyChannel {
const NSTimeInterval kDestroyDelay = 1.0;
GRPCCallOptions *options = [[GRPCCallOptions alloc] init];
GRPCChannelConfiguration *config =
[[GRPCChannelConfiguration alloc] initWithHost:kDummyHost callOptions:options];
GRPCPooledChannel *channel =
[[GRPCPooledChannel alloc] initWithChannelConfiguration:config destroyDelay:kDestroyDelay];
GRPCCompletionQueue *cq = [GRPCCompletionQueue completionQueue];
GRPCWrappedCall *wrappedCall;
GRPCChannel *wrappedChannel;
@autoreleasepool {
wrappedCall = [channel wrappedCallWithPath:kDummyPath completionQueue:cq callOptions:options];
XCTAssertNotNil(channel.wrappedChannel);
// Unref and ref channel immediately; expect using the same raw channel.
wrappedChannel = channel.wrappedChannel;
wrappedCall = nil;
wrappedCall = [channel wrappedCallWithPath:kDummyPath completionQueue:cq callOptions:options];
XCTAssertEqual(channel.wrappedChannel, wrappedChannel);
// Unref and ref channel after destroy delay; expect a new raw channel.
wrappedCall = nil;
}
sleep(kDestroyDelay + 1);
XCTAssertNil(channel.wrappedChannel);
wrappedCall = [channel wrappedCallWithPath:kDummyPath completionQueue:cq callOptions:options];
XCTAssertNotEqual(channel.wrappedChannel, wrappedChannel);
}
- (void)testDisconnect {
const NSTimeInterval kDestroyDelay = 1.0;
GRPCCallOptions *options = [[GRPCCallOptions alloc] init];
GRPCChannelConfiguration *config =
[[GRPCChannelConfiguration alloc] initWithHost:kDummyHost callOptions:options];
GRPCPooledChannel *channel =
[[GRPCPooledChannel alloc] initWithChannelConfiguration:config destroyDelay:kDestroyDelay];
GRPCCompletionQueue *cq = [GRPCCompletionQueue completionQueue];
GRPCWrappedCall *wrappedCall =
[channel wrappedCallWithPath:kDummyPath completionQueue:cq callOptions:options];
XCTAssertNotNil(channel.wrappedChannel);
// Disconnect; expect wrapped channel to be dropped
[channel disconnect];
XCTAssertNil(channel.wrappedChannel);
// Create a new call and unref the old call; confirm that destroy of the old call does not make
// the channel disconnect, even after the destroy delay.
GRPCWrappedCall *wrappedCall2 =
[channel wrappedCallWithPath:kDummyPath completionQueue:cq callOptions:options];
XCTAssertNotNil(channel.wrappedChannel);
GRPCChannel *wrappedChannel = channel.wrappedChannel;
wrappedCall = nil;
sleep(kDestroyDelay + 1);
XCTAssertNotNil(channel.wrappedChannel);
XCTAssertEqual(wrappedChannel, channel.wrappedChannel);
(void)wrappedCall2;
}
@end
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