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/*
*
* Copyright 2015 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 <UIKit/UIKit.h>
#import <XCTest/XCTest.h>
#import <RxLibrary/GRXBufferedPipe.h>
#import <RxLibrary/GRXWriteable.h>
#import <RxLibrary/GRXWriter.h>
#define TEST_TIMEOUT 1
// A mock of a GRXSingleValueHandler block that can be queried for how many times it was called and
// what were the last values passed to it.
//
// TODO(jcanizales): Move this to a test util library, and add tests for it.
@interface CapturingSingleValueHandler : NSObject
@property (nonatomic, readonly) void (^block)(id value, NSError *errorOrNil);
@property (nonatomic, readonly) NSUInteger timesCalled;
@property (nonatomic, readonly) id value;
@property (nonatomic, readonly) NSError *errorOrNil;
+ (instancetype)handler;
@end
@implementation CapturingSingleValueHandler
+ (instancetype)handler {
return [[self alloc] init];
}
- (GRXSingleHandler)block {
return ^(id value, NSError *errorOrNil) {
++_timesCalled;
_value = value;
_errorOrNil = errorOrNil;
};
}
@end
// TODO(jcanizales): Split into one file per tested class.
@interface RxLibraryUnitTests : XCTestCase
@end
@implementation RxLibraryUnitTests
+ (void)setUp {
NSLog(@"GRPCClientTests Started");
}
#pragma mark Writeable
- (void)testWriteableSingleHandlerIsCalledForValue {
// Given:
CapturingSingleValueHandler *handler = [CapturingSingleValueHandler handler];
id anyValue = @7;
// If:
id<GRXWriteable> writeable = [GRXWriteable writeableWithSingleHandler:handler.block];
[writeable writeValue:anyValue];
[writeable writesFinishedWithError:nil];
// Then:
XCTAssertEqual(handler.timesCalled, 1);
XCTAssertEqualObjects(handler.value, anyValue);
XCTAssertEqualObjects(handler.errorOrNil, nil);
}
- (void)testWriteableSingleHandlerIsCalledForError {
// Given:
CapturingSingleValueHandler *handler = [CapturingSingleValueHandler handler];
NSError *anyError = [NSError errorWithDomain:@"domain" code:7 userInfo:nil];
// If:
id<GRXWriteable> writeable = [GRXWriteable writeableWithSingleHandler:handler.block];
[writeable writesFinishedWithError:anyError];
// Then:
XCTAssertEqual(handler.timesCalled, 1);
XCTAssertEqualObjects(handler.value, nil);
XCTAssertEqualObjects(handler.errorOrNil, anyError);
}
- (void)testWriteableSingleHandlerIsCalledOnlyOnce_ValueThenError {
// Given:
CapturingSingleValueHandler *handler = [CapturingSingleValueHandler handler];
id anyValue = @7;
NSError *anyError = [NSError errorWithDomain:@"domain" code:7 userInfo:nil];
// If:
id<GRXWriteable> writeable = [GRXWriteable writeableWithSingleHandler:handler.block];
[writeable writeValue:anyValue];
[writeable writesFinishedWithError:anyError];
// Then:
XCTAssertEqual(handler.timesCalled, 1);
XCTAssertEqualObjects(handler.value, anyValue);
XCTAssertEqualObjects(handler.errorOrNil, nil);
}
- (void)testWriteableSingleHandlerIsCalledOnlyOnce_ValueThenValue {
// Given:
CapturingSingleValueHandler *handler = [CapturingSingleValueHandler handler];
id anyValue = @7;
// If:
id<GRXWriteable> writeable = [GRXWriteable writeableWithSingleHandler:handler.block];
[writeable writeValue:anyValue];
[writeable writeValue:anyValue];
[writeable writesFinishedWithError:nil];
// Then:
XCTAssertEqual(handler.timesCalled, 1);
XCTAssertEqualObjects(handler.value, anyValue);
XCTAssertEqualObjects(handler.errorOrNil, nil);
}
- (void)testWriteableSingleHandlerFailsOnEmptyWriter {
// Given:
CapturingSingleValueHandler *handler = [CapturingSingleValueHandler handler];
// If:
id<GRXWriteable> writeable = [GRXWriteable writeableWithSingleHandler:handler.block];
[writeable writesFinishedWithError:nil];
// Then:
XCTAssertEqual(handler.timesCalled, 1);
XCTAssertEqualObjects(handler.value, nil);
XCTAssertNotNil(handler.errorOrNil);
}
#pragma mark BufferedPipe
- (void)testBufferedPipePropagatesValue {
__weak XCTestExpectation *expectation = [self expectationWithDescription:@"Response received"];
// Given:
CapturingSingleValueHandler *handler = [CapturingSingleValueHandler handler];
id<GRXWriteable> writeable = [GRXWriteable writeableWithSingleHandler:^(id value, NSError *errorOrNil) {
handler.block(value, errorOrNil);
[expectation fulfill];
}];
id anyValue = @7;
// If:
GRXBufferedPipe *pipe = [GRXBufferedPipe pipe];
[pipe startWithWriteable:writeable];
[pipe writeValue:anyValue];
[pipe writesFinishedWithError:nil];
// Then:
[self waitForExpectationsWithTimeout:TEST_TIMEOUT handler:nil];
XCTAssertEqual(handler.timesCalled, 1);
XCTAssertEqualObjects(handler.value, anyValue);
XCTAssertEqualObjects(handler.errorOrNil, nil);
}
- (void)testBufferedPipePropagatesError {
__weak XCTestExpectation *expectation = [self expectationWithDescription:@"Response received"];
// Given:
CapturingSingleValueHandler *handler = [CapturingSingleValueHandler handler];
id<GRXWriteable> writeable = [GRXWriteable writeableWithSingleHandler:^(id value, NSError *errorOrNil) {
handler.block(value, errorOrNil);
[expectation fulfill];
}];
NSError *anyError = [NSError errorWithDomain:@"domain" code:7 userInfo:nil];
// If:
GRXBufferedPipe *pipe = [GRXBufferedPipe pipe];
[pipe startWithWriteable:writeable];
[pipe writesFinishedWithError:anyError];
// Then:
[self waitForExpectationsWithTimeout:TEST_TIMEOUT handler:nil];
XCTAssertEqual(handler.timesCalled, 1);
XCTAssertEqualObjects(handler.value, nil);
XCTAssertEqualObjects(handler.errorOrNil, anyError);
}
- (void)testBufferedPipeFinishWriteWhilePaused {
__weak XCTestExpectation *expectation = [self expectationWithDescription:@"Response received"];
// Given:
CapturingSingleValueHandler *handler = [CapturingSingleValueHandler handler];
id<GRXWriteable> writeable = [GRXWriteable writeableWithSingleHandler:^(id value, NSError *errorOrNil) {
handler.block(value, errorOrNil);
[expectation fulfill];
}];
id anyValue = @7;
// If:
GRXBufferedPipe *pipe = [GRXBufferedPipe pipe];
// Write something, then finish
[pipe writeValue:anyValue];
[pipe writesFinishedWithError:nil];
// then start the writeable
[pipe startWithWriteable:writeable];
// Then:
[self waitForExpectationsWithTimeout:TEST_TIMEOUT handler:nil];
XCTAssertEqual(handler.timesCalled, 1);
XCTAssertEqualObjects(handler.value, anyValue);
XCTAssertEqualObjects(handler.errorOrNil, nil);
}
#define WRITE_ROUNDS (1000)
- (void)testBufferedPipeResumeWhenDealloc {
id anyValue = @7;
id<GRXWriteable> writeable = [GRXWriteable writeableWithSingleHandler:^(id value, NSError *errorOrNil) {
}];
// Release after alloc;
GRXBufferedPipe *pipe = [GRXBufferedPipe pipe];
pipe = nil;
// Release after write but before start
pipe = [GRXBufferedPipe pipe];
for (int i = 0; i < WRITE_ROUNDS; i++) {
[pipe writeValue:anyValue];
}
pipe = nil;
// Release after start but not write
pipe = [GRXBufferedPipe pipe];
[pipe startWithWriteable:writeable];
pipe = nil;
// Release after start and write
pipe = [GRXBufferedPipe pipe];
for (int i = 0; i < WRITE_ROUNDS; i++) {
[pipe writeValue:anyValue];
}
[pipe startWithWriteable:writeable];
pipe = nil;
// Release after start, write and pause
pipe = [GRXBufferedPipe pipe];
[pipe startWithWriteable:writeable];
for (int i = 0; i < WRITE_ROUNDS; i++) {
[pipe writeValue:anyValue];
}
pipe.state = GRXWriterStatePaused;
for (int i = 0; i < WRITE_ROUNDS; i++) {
[pipe writeValue:anyValue];
}
pipe = nil;
// Release after start, write, pause and finish
pipe = [GRXBufferedPipe pipe];
[pipe startWithWriteable:writeable];
for (int i = 0; i < WRITE_ROUNDS; i++) {
[pipe writeValue:anyValue];
}
pipe.state = GRXWriterStatePaused;
for (int i = 0; i < WRITE_ROUNDS; i++) {
[pipe writeValue:anyValue];
}
[pipe finishWithError:nil];
pipe = nil;
// Release after start, write, pause, finish and resume
pipe = [GRXBufferedPipe pipe];
[pipe startWithWriteable:writeable];
for (int i = 0; i < WRITE_ROUNDS; i++) {
[pipe writeValue:anyValue];
}
pipe.state = GRXWriterStatePaused;
for (int i = 0; i < WRITE_ROUNDS; i++) {
[pipe writeValue:anyValue];
}
[pipe finishWithError:nil];
pipe.state = GRXWriterStateStarted;
pipe = nil;
}
@end
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