Egor Tolstoy etolstoy

## OperationSchedulerTests-1.m
- (void)testThatAuthOperationBlocksGeneralOperations {
    // given
    XCTestExpectation *expectation = [self expectationWithDescription:@"Last operation fired"];
    NSMutableArray *operationNames = [NSMutableArray array];

    NSString *const kAuthOperationName = @"AuthOperation";
    NSString *const kInitialOperationName = @"InitialOperation";
    NSString *const kGeneralOperationName = @"GeneralOperation";
    NSUInteger const kGeneralOperationsCount = 5;
    __block NSNumber *operationCounter = @0;

## 1
@implementation RamblerAppDelegate

- (NSArray *)initialAssemblies {
    return @[[MyAssembly class]];
}

@end

## Class.m
TyphoonStoryboard *storyboard = [TyphoonStoryboard storyboardWithName:name
                                                              factory:factory
                                                               bundle:bundle];

## RCTAssemblyTestsBase.h
//
//  RCTAssemblyTestsBase.h
//  Базовый класс для тестов Assembly
//
//  Created by Egor Tolstoy on 15/05/15.
//  Copyright (c) 2015 Rambler. All rights reserved.
//

#import <XCTest/XCTest.h>

## ViewController.m
// 7. Briefly discuss pixelmap image rotation algorithms and their execution times (O(*)). If you would write an image rotation algorithm, do you find anything useful in the iOS Accelerate framework?

- (UIImage *)rotateImage:(UIImage *)sourceImage withDegrees:(CGFloat)degrees {
    vImage_Buffer sourceBuffer = [self bufferFromImage:sourceImage];
    vImage_Buffer destinationBuffer = [self newBufferForBuffer:sourceBuffer];

    CGFloat radians = [self radiansFromDegrees:degrees];

    Pixel_8 backColor = 0;
    vImageRotate_Planar8(&sourceBuffer, &destinationBuffer, NULL, radians, backColor, 0);

## ViewController.m
- (void)prepareToRecordAudio {
    self.lowpassResults = 0.0f;

    NSError *error;
    [[AVAudioSession sharedInstance] setCategory:AVAudioSessionCategoryPlayAndRecord error:&error];

    // Setup default settings for the recorder
    self.recorder = [[AVAudioRecorder alloc] initWithURL:[self applicationDocumentsDirectory]
                                                            settings:@{
                                                                       AVFormatIDKey : @(kAudioFormatMPEG4AAC),

## ApiClient.m
// 4. Write a class which does HTTP request to a service in address www.idtmessaging.com and extracts the html code inside tags <head> </head> - Discuss error handling.

- (void)makeRequest {
    NSString *requestUrl = @"http://www.idtmessaging.com";
    NSURL *url = [NSURL URLWithString:requestUrl];

    [NSURLConnection sendAsynchronousRequest:[NSURLRequest requestWithURL:url] queue:[NSOperationQueue new] completionHandler:^(NSURLResponse *response, NSData *data, NSError *connectionError) {
        if (data && !connectionError) {
            NSString *htmlString = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
            NSString *headString = [self obtainHeadFromHtml:htmlString];

## UIViewController.m
// 3. As a part of a ToDo -list application, write the implementation for method tableView:cellForRowAtIndexPath: constructing a UITableViewCell with a text label and disclosure indicator

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:kCellIdentifier forIndexPath:indexPath];

    cell = [self configureCell:cell atIndexPath:indexPath];

    return cell;
}

## YDLinkedList.h
// 2. Implement a class for linked lists. At least implement methods for add and remove.

#import <Foundation/Foundation.h>

typedef struct YDLinkedListNode YDLinkedListNode;

// Helper method for handy list nodes creating
YDLinkedListNode * YDLinkedListNodeMake(id object, YDLinkedListNode *previousNode, YDLinkedListNode *nextNode);

struct YDLinkedListNode {

## RevertString.m
// 1. Write a function which takes a string as an argument and returns the string reversed. For example, "abcdef" becomes "fedcba"
- (NSString *)revertString:(NSString *)initialString {
    NSMutableString *revertedString = [[NSMutableString alloc] initWithString:@""];

    for (NSInteger i = initialString.length - 1; i >= 0; i--) {
        char currentChar = [initialString characterAtIndex:i];
        [revertedString appendString:[NSString stringWithFormat:@"%c", currentChar]];
    }
    return revertedString;
}
	- (void)testThatAuthOperationBlocksGeneralOperations {
	// given
	XCTestExpectation *expectation = [self expectationWithDescription:@"Last operation fired"];
	NSMutableArray *operationNames = [NSMutableArray array];

	NSString *const kAuthOperationName = @"AuthOperation";
	NSString *const kInitialOperationName = @"InitialOperation";
	NSString *const kGeneralOperationName = @"GeneralOperation";
	NSUInteger const kGeneralOperationsCount = 5;
	__block NSNumber *operationCounter = @0;
	@implementation RamblerAppDelegate

	- (NSArray *)initialAssemblies {
	return @[[MyAssembly class]];
	}

	@end
	TyphoonStoryboard *storyboard = [TyphoonStoryboard storyboardWithName:name
	factory:factory
	bundle:bundle];
	//
	// RCTAssemblyTestsBase.h
	// Базовый класс для тестов Assembly
	//
	// Created by Egor Tolstoy on 15/05/15.
	// Copyright (c) 2015 Rambler. All rights reserved.
	//

	#import <XCTest/XCTest.h>
	// 7. Briefly discuss pixelmap image rotation algorithms and their execution times (O(*)). If you would write an image rotation algorithm, do you find anything useful in the iOS Accelerate framework?

	- (UIImage )rotateImage:(UIImage )sourceImage withDegrees:(CGFloat)degrees {
	vImage_Buffer sourceBuffer = [self bufferFromImage:sourceImage];
	vImage_Buffer destinationBuffer = [self newBufferForBuffer:sourceBuffer];

	CGFloat radians = [self radiansFromDegrees:degrees];

	Pixel_8 backColor = 0;
	vImageRotate_Planar8(&sourceBuffer, &destinationBuffer, NULL, radians, backColor, 0);
	- (void)prepareToRecordAudio {
	self.lowpassResults = 0.0f;

	NSError *error;
	[[AVAudioSession sharedInstance] setCategory:AVAudioSessionCategoryPlayAndRecord error:&error];

	// Setup default settings for the recorder
	self.recorder = [[AVAudioRecorder alloc] initWithURL:[self applicationDocumentsDirectory]
	settings:@{
	AVFormatIDKey : @(kAudioFormatMPEG4AAC),
	// 4. Write a class which does HTTP request to a service in address www.idtmessaging.com and extracts the html code inside tags <head> </head> - Discuss error handling.

	- (void)makeRequest {
	NSString *requestUrl = @"http://www.idtmessaging.com";
	NSURL *url = [NSURL URLWithString:requestUrl];

	[NSURLConnection sendAsynchronousRequest:[NSURLRequest requestWithURL:url] queue:[NSOperationQueue new] completionHandler:^(NSURLResponse response, NSData data, NSError *connectionError) {
	if (data && !connectionError) {
	NSString *htmlString = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
	NSString *headString = [self obtainHeadFromHtml:htmlString];
	// 3. As a part of a ToDo -list application, write the implementation for method tableView:cellForRowAtIndexPath: constructing a UITableViewCell with a text label and disclosure indicator

	- (UITableViewCell )tableView:(UITableView )tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
	UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:kCellIdentifier forIndexPath:indexPath];

	cell = [self configureCell:cell atIndexPath:indexPath];

	return cell;
	}
	// 2. Implement a class for linked lists. At least implement methods for add and remove.

	#import <Foundation/Foundation.h>

	typedef struct YDLinkedListNode YDLinkedListNode;

	// Helper method for handy list nodes creating
	YDLinkedListNode * YDLinkedListNodeMake(id object, YDLinkedListNode previousNode, YDLinkedListNode nextNode);

	struct YDLinkedListNode {
	// 1. Write a function which takes a string as an argument and returns the string reversed. For example, "abcdef" becomes "fedcba"
	- (NSString )revertString:(NSString )initialString {
	NSMutableString *revertedString = [[NSMutableString alloc] initWithString:@""];

	for (NSInteger i = initialString.length - 1; i >= 0; i--) {
	char currentChar = [initialString characterAtIndex:i];
	[revertedString appendString:[NSString stringWithFormat:@"%c", currentChar]];
	}
	return revertedString;
	}