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//
// SDLTCPTransportSpec.m
// SmartDeviceLinkTests
//
// Created by Sho Amano on 2018/04/24.
// Copyright © 2018 Xevo Inc. All rights reserved.
//
#import <Foundation/Foundation.h>
#import <Quick/Quick.h>
#import <Nimble/Nimble.h>
#import <OCMock/OCMock.h>
#import "SDLTCPTransport.h"
#import "SDLError.h"
#import "TestTCPServer.h"
#import <stdio.h>
@interface SDLTCPTransport ()
// verify some internal properties
@property (nullable, nonatomic, strong) NSThread *ioThread;
@property (nullable, nonatomic, strong) NSInputStream *inputStream;
@property (nullable, nonatomic, strong) NSOutputStream *outputStream;
@end
QuickSpecBegin(SDLTCPTransportSpec)
describe(@"SDLTCPTransport", ^ {
__block SDLTCPTransport *transport = nil;
__block id transportDelegateMock = nil;
__block TestTCPServer *server = nil;
__block id serverDelegateMock = nil;
beforeEach(^{
transport = [[SDLTCPTransport alloc] init];
transport.hostName = @"localhost";
transport.portNumber = @"12345";
transportDelegateMock = OCMProtocolMock(@protocol(SDLTransportDelegate));
transport.delegate = transportDelegateMock;
server = [[TestTCPServer alloc] init];
serverDelegateMock = OCMProtocolMock(@protocol(TestTCPServerDelegate));
server.delegate = serverDelegateMock;
});
afterEach(^{
transport.delegate = nil;
server.delegate = nil;
[transport disconnect];
transport = nil;
transportDelegateMock = nil;
[server teardown];
server = nil;
serverDelegateMock = nil;
});
it(@"Should be able to connect to specified TCP server and disconnect from it", ^ {
BOOL ret = [server setup:@"localhost" port:@"12345"];
expect(ret);
OCMExpect([serverDelegateMock onClientConnected]);
OCMExpect([transportDelegateMock onTransportConnected]);
[transport connect];
OCMVerifyAllWithDelay(serverDelegateMock, 0.5);
OCMVerifyAllWithDelay(transportDelegateMock, 0.5);
expect(transport.ioThread != nil);
expect(transport.inputStream != nil);
expect(transport.outputStream != nil);
[transport disconnect];
expect(transport.ioThread == nil);
expect(transport.inputStream == nil);
expect(transport.outputStream == nil);
});
it(@"Should invoke onError delegate when connection is refused", ^ {
// Start the server without SO_REUSEADDR then close it. Then the port will not be owned by anybody for a while.
server.enableSOReuseAddr = NO;
BOOL ret = [server setup:@"localhost" port:@"12346"];
expect(ret);
[server teardown];
server = nil;
OCMExpect([transportDelegateMock onError:[OCMArg checkWithBlock:^BOOL(NSError *error) {
if (error.domain == SDLErrorDomainTransport && error.code == SDLTransportErrorConnectionRefused) {
return YES;
} else {
return NO;
}
}]]);
transport.portNumber = @"12346";
[transport connect];
OCMVerifyAllWithDelay(transportDelegateMock, 0.5);
[transport disconnect];
expect(transport.ioThread == nil);
expect(transport.inputStream == nil);
expect(transport.outputStream == nil);
});
it(@"Should invoke onError delegate when connection is timed out", ^ {
OCMExpect([transportDelegateMock onError:[OCMArg checkWithBlock:^BOOL(NSError *error) {
if (error.domain == SDLErrorDomainTransport && error.code == SDLTransportErrorConnectionTimedOut) {
return YES;
} else {
return NO;
}
}]]);
transport.hostName = @"127.0.0.2";
[transport connect];
// timeout value should be longer than 'ConnectionTimeoutSecs' in SDLTCPTransport
OCMVerifyAllWithDelay(transportDelegateMock, 60.0);
[transport disconnect];
expect(transport.ioThread == nil);
expect(transport.inputStream == nil);
expect(transport.outputStream == nil);
});
it(@"Should invoke onError delegate when input parameter is invalid", ^ {
OCMExpect([transportDelegateMock onError:[OCMArg checkWithBlock:^BOOL(NSError *error) {
if (error.domain == SDLErrorDomainTransport && error.code == SDLTransportErrorUnknown) {
return YES;
} else {
return NO;
}
}]]);
transport.portNumber = @"abcde";
[transport connect];
OCMVerifyAllWithDelay(transportDelegateMock, 0.5);
[transport disconnect];
expect(transport.ioThread == nil);
expect(transport.inputStream == nil);
expect(transport.outputStream == nil);
});
it(@"Should send out data when send is called", ^ {
BOOL ret = [server setup:@"localhost" port:@"12345"];
expect(ret);
char buf[256];
snprintf(buf, sizeof(buf), "This is dummy message.");
NSData *testData = [NSData dataWithBytes:buf length:strlen(buf)];
NSMutableData *receivedData = [[NSMutableData alloc] init];
OCMExpect([serverDelegateMock onClientConnected]);
OCMStub([serverDelegateMock onClientDataReceived:OCMOCK_ANY]).andDo(^(NSInvocation *invocation) {
__unsafe_unretained NSData *data;
[invocation getArgument:&data atIndex:2]; // first argument is index 2
[receivedData appendData:data];
NSLog(@"mock server received %lu bytes", data.length);
});
OCMExpect([transportDelegateMock onTransportConnected]);
[transport connect];
[transport sendData:testData];
OCMVerifyAllWithDelay(serverDelegateMock, 0.5);
OCMVerifyAllWithDelay(transportDelegateMock, 0.5);
[NSThread sleepForTimeInterval:0.5];
expect([receivedData isEqualToData:testData]);
[transport disconnect];
});
it(@"Should send out data even if send is called some time after", ^ {
BOOL ret = [server setup:@"localhost" port:@"12345"];
expect(ret);
char buf1[256], buf2[256];
snprintf(buf1, sizeof(buf1), "This is another dummy message.");
snprintf(buf2, sizeof(buf2), "followed by 12345678901234567890123456");
NSData *testData1 = [NSData dataWithBytes:buf1 length:strlen(buf1)];
NSData *testData2 = [NSData dataWithBytes:buf2 length:strlen(buf2)];
NSMutableData *expectedData = [NSMutableData dataWithData:testData1];
[expectedData appendData:testData2];
__block NSMutableData *receivedData = [[NSMutableData alloc] init];
OCMExpect([serverDelegateMock onClientConnected]);
OCMStub([serverDelegateMock onClientDataReceived:OCMOCK_ANY]).andDo(^(NSInvocation *invocation) {
__unsafe_unretained NSData *data;
[invocation getArgument:&data atIndex:2]; // first argument is index 2
[receivedData appendData:data];
NSLog(@"mock server received %lu bytes", data.length);
});
OCMExpect([transportDelegateMock onTransportConnected]);
[transport connect];
// check that transport still sends out data long after NSStreamEventHasSpaceAvailable event
[NSThread sleepForTimeInterval:1.0];
[transport sendData:testData1];
[transport sendData:testData2];
OCMVerifyAllWithDelay(serverDelegateMock, 0.5);
OCMVerifyAllWithDelay(transportDelegateMock, 0.5);
[NSThread sleepForTimeInterval:0.5];
expect([receivedData isEqualToData:expectedData]);
// don't receive further delegate events
server.delegate = nil;
[transport disconnect];
});
it(@"Should invoke onDataReceived delegate when received some data", ^ {
BOOL ret = [server setup:@"localhost" port:@"12345"];
expect(ret);
char buf1[256], buf2[256];
snprintf(buf1, sizeof(buf1), "This is test data.");
snprintf(buf2, sizeof(buf2), "This is another chunk of data.");
NSData *testData1 = [NSData dataWithBytes:buf1 length:strlen(buf1)];
NSData *testData2 = [NSData dataWithBytes:buf2 length:strlen(buf2)];
NSMutableData *expectedData = [NSMutableData dataWithData:testData1];
[expectedData appendData:testData2];
OCMExpect([transportDelegateMock onTransportConnected]);
NSMutableData *receivedData = [[NSMutableData alloc] init];
OCMStub([transportDelegateMock onDataReceived:OCMOCK_ANY]).andDo(^(NSInvocation *invocation) {
__unsafe_unretained NSData *data;
[invocation getArgument:&data atIndex:2]; // first argument is index 2
[receivedData appendData:data];
NSLog(@"client received %lu bytes", data.length);
});
OCMExpect([serverDelegateMock onClientConnected]);
[transport connect];
// wait until connected
OCMVerifyAllWithDelay(serverDelegateMock, 0.5);
[server send:testData1];
[server send:testData2];
OCMVerifyAllWithDelay(transportDelegateMock, 0.5);
[NSThread sleepForTimeInterval:0.5];
expect([receivedData isEqualToData:expectedData]);
[transport disconnect];
});
it(@"Should generate disconnected event after peer closed connection", ^ {
BOOL ret = [server setup:@"localhost" port:@"12345"];
expect(ret);
OCMExpect([serverDelegateMock onClientConnected]);
OCMExpect([transportDelegateMock onTransportConnected]);
[transport connect];
OCMVerifyAllWithDelay(serverDelegateMock, 0.5);
OCMVerifyAllWithDelay(transportDelegateMock, 0.5);
OCMExpect([transportDelegateMock onTransportDisconnected]);
// Close the writing connection. This will notify the client that peer closed the connection.
ret = [server shutdownClient];
expect(ret);
OCMVerifyAllWithDelay(transportDelegateMock, 0.5);
[transport disconnect];
});
});
QuickSpecEnd
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