| /* |
| * |
| * Copyright 2015, Google Inc. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
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| * notice, this list of conditions and the following disclaimer. |
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| * in the documentation and/or other materials provided with the |
| * distribution. |
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| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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| * |
| */ |
| |
| #import <UIKit/UIKit.h> |
| #import <XCTest/XCTest.h> |
| |
| #import <RxLibrary/GRXBufferedPipe.h> |
| #import <RxLibrary/GRXWriteable.h> |
| #import <RxLibrary/GRXWriter.h> |
| |
| // 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 |
| |
| #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 { |
| // Given: |
| CapturingSingleValueHandler *handler = [CapturingSingleValueHandler handler]; |
| id<GRXWriteable> writeable = [GRXWriteable writeableWithSingleHandler:handler.block]; |
| id anyValue = @7; |
| |
| // If: |
| GRXBufferedPipe *pipe = [GRXBufferedPipe pipe]; |
| [pipe startWithWriteable:writeable]; |
| [pipe writeValue:anyValue]; |
| |
| // Then: |
| XCTAssertEqual(handler.timesCalled, 1); |
| XCTAssertEqualObjects(handler.value, anyValue); |
| XCTAssertEqualObjects(handler.errorOrNil, nil); |
| } |
| |
| - (void)testBufferedPipePropagatesError { |
| // Given: |
| CapturingSingleValueHandler *handler = [CapturingSingleValueHandler handler]; |
| id<GRXWriteable> writeable = [GRXWriteable writeableWithSingleHandler:handler.block]; |
| NSError *anyError = [NSError errorWithDomain:@"domain" code:7 userInfo:nil]; |
| |
| // If: |
| GRXBufferedPipe *pipe = [GRXBufferedPipe pipe]; |
| [pipe startWithWriteable:writeable]; |
| [pipe writesFinishedWithError:anyError]; |
| |
| // Then: |
| XCTAssertEqual(handler.timesCalled, 1); |
| XCTAssertEqualObjects(handler.value, nil); |
| XCTAssertEqualObjects(handler.errorOrNil, anyError); |
| } |
| |
| - (void)testBufferedPipeFinishWriteWhilePaused { |
| // Given: |
| CapturingSingleValueHandler *handler = [CapturingSingleValueHandler handler]; |
| id<GRXWriteable> writeable = [GRXWriteable writeableWithSingleHandler:handler.block]; |
| 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: |
| XCTAssertEqual(handler.timesCalled, 1); |
| XCTAssertEqualObjects(handler.value, anyValue); |
| XCTAssertEqualObjects(handler.errorOrNil, nil); |
| } |
| |
| @end |