投稿時間:2022-02-23 18:27:12 RSSフィード2022-02-23 18:00 分まとめ(40件)

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TECH	Engadget Japanese	Netflix、切抜きショート動画機能「Fast Laughs」をスマートTVにも展開。ただし英語圏のみ	https://japanese.engadget.com/netflix-fast-laughs-tests-on-t-vs-085029925.html	fastlaughs	2022-02-23 08:50:29
AWS	lambdaタグが付けられた新着投稿 - Qiita	【メモ】AWS LambdaでのPythonのレイヤー作成方法参考記事	https://qiita.com/Hiyoko1213/items/6d8a952ec98b215a24d9	awslambda	2022-02-23 17:40:23
python	Pythonタグが付けられた新着投稿 - Qiita	【メモ】AWS LambdaでのPythonのレイヤー作成方法参考記事	https://qiita.com/Hiyoko1213/items/6d8a952ec98b215a24d9	awslambda	2022-02-23 17:40:23
python	Pythonタグが付けられた新着投稿 - Qiita	【備忘録】バイオインフォマティクス環境設定	https://qiita.com/revogue/items/625f56eed2e1f010fa68	XcodeインストールGUIwgetインストールコマンドラインAnacondaインストールGUIcondaによるインストールコマンドラインcondaによるインストールXcode、wget、Anacondaのインストールは省略して、condaのところだけ詳細に記載します。	2022-02-23 17:05:22
js	JavaScriptタグが付けられた新着投稿 - Qiita	【個人開発】嫁ブロックを突破するアプリをつくました。	https://qiita.com/kunooru/items/50164cbe3c22f589f654	はじめにこんにちわくのと申しますエンジニアの方ってガジェット好きな方多いですよねしかしながら、エンジニアにとってガジェットを購入するために突破しなければいけない壁っていくつかありますよね。	2022-02-23 17:58:00
js	JavaScriptタグが付けられた新着投稿 - Qiita	[JavaScript][メモ]popstateイベントをサンプルコードで挙動確認	https://qiita.com/TkTkTkTkTako/items/5a41e2df5eb26691afbb	A画面・・・③①↓↑②B画面①ボタンを押して画面遷移POST送信による遷移②ブラウザバックで画面遷移・・・※ここで検知してほしかったが機能せず③再度ブラウザバックしようとするとpopstateイベントが発火し、alertが実行③でpopstateイベントが発火するので、今回のやりたいことは実現できなさそう。	2022-02-23 17:51:03
js	JavaScriptタグが付けられた新着投稿 - Qiita	HTML+CSS+JSで電卓を作ってみた※ウェブカツブログ記事参照	https://qiita.com/bumpfuji10/items/2b9470667530f67696ca	一番上には計算結果が出力される液晶画面、液晶以下には演算子・数字を入れ、簡単な四則演算ができるようにしています。	2022-02-23 17:46:05
js	JavaScriptタグが付けられた新着投稿 - Qiita	[JS]IF文の省略	https://qiita.com/NaNaNamakemo/items/4e0c054492461be8211d	今回の記述法が実際に現場で使用される書き方かどうかはわかりませんが書籍などの学習では得られないところが学べたので良かったと思います。	2022-02-23 17:02:19
Ruby	Rubyタグが付けられた新着投稿 - Qiita	Ruby returnで複数の値を返す	https://qiita.com/Kmashi/items/ef213edb984138fb051c	なお、終わった後に気づきましたが、週初めと週終わりの日付は、メソッドで作成した配列から取得すればよかったので、個別で作成する必要はなかったですね。	2022-02-23 17:06:01
Linux	Ubuntuタグが付けられた新着投稿 - Qiita	ARM版Ubuntuでv8をコンパイルする	https://qiita.com/rairaii/items/4c138292c445ff54e118	ARM版Ubuntuでvをコンパイルするvのソースコードダウンロード用の環境整備vのソースコードはgitで管理されているが、gitコマンドを利用してソースコード取得するのではなく、依存するライブラリ一式含めて用意してくれうgclientコマンドを利用してソースコードを取得する。	2022-02-23 17:18:03
AWS	AWSタグが付けられた新着投稿 - Qiita	EBSのプレウォーミングについて	https://qiita.com/a-hiroyuki/items/168280a26855d770e76c	EBSのプレウォーミングについてはじめにEBSボリュームは新規作成または空である場合初回からパフォーマンスが最大化されているがスナップショットから復元したボリュームはSからデータがプルダウンされてボリュームに対する書き込み処理が発生するため、初回アクセス時にはフルパフォーマンスで利用できないという問題がある。	2022-02-23 17:47:14
AWS	AWSタグが付けられた新着投稿 - Qiita	【メモ】AWS LambdaでのPythonのレイヤー作成方法参考記事	https://qiita.com/Hiyoko1213/items/6d8a952ec98b215a24d9	awslambda	2022-02-23 17:40:23
Docker	dockerタグが付けられた新着投稿 - Qiita	これであなたもDockerプロフェッショナル ~Dockerを使用してNginx経由でDjangoを動かしてみようの巻~	https://qiita.com/_Kohei_/items/ce981f60f7ec703cbfae	nagamatsukdymjp今回やりたいことDockerで構築したコンテナ上で、Nginx経由でDjangoのプロジェクトが見れるようにしたい。	2022-02-23 17:53:17
golang	Goタグが付けられた新着投稿 - Qiita	[Golang] [標準logライブラリ] GCPの構造化ログにX-Cloud-Trace-ContextのtraceIdをセットする	https://qiita.com/t_morimori777/items/53810e6aedf7b0db850b	Golang標準logライブラリGCPの構造化ログにXCloudTraceContextのtraceIdをセットするやったこと前回の記事で下記の課題があった。	2022-02-23 17:55:11
GCP	gcpタグが付けられた新着投稿 - Qiita	[Golang] [標準logライブラリ] GCPの構造化ログにX-Cloud-Trace-ContextのtraceIdをセットする	https://qiita.com/t_morimori777/items/53810e6aedf7b0db850b	Golang標準logライブラリGCPの構造化ログにXCloudTraceContextのtraceIdをセットするやったこと前回の記事で下記の課題があった。	2022-02-23 17:55:11
Azure	Azureタグが付けられた新着投稿 - Qiita	【初心者向け】AZ-900/AZ-104を取得した後なにもかも忘れた自分がAzure ADとサブスクリプションの関係を思い出す	https://qiita.com/torippy1024/items/7c307cdda6d9a13e7786	サブスクリプションの全てがそのAzureADの配下に所属すると理解するのではなく、「信頼したので、そのAzureADによるユーザーを使ってこのサブスクリプションにアクセスさせてあげるよ」という意味と理解するのが良いと思います。	2022-02-23 17:13:16
Git	Gitタグが付けられた新着投稿 - Qiita	git statusのmodifiedが消えない	https://qiita.com/zazaza/items/b228e197f079ebe819ec	gitstatusのmodifiedが消えないコミットした後、gitstatusすると再度同じmodifiedが表示される。	2022-02-23 17:40:32
Ruby	Railsタグが付けられた新着投稿 - Qiita	Railsでjsonデータを返す	https://qiita.com/yoshi-sho-0606/items/fae8073864d411531433	railsgmodelTasktitlestringbodystringRailsconsoleでデータを作成モデルができたら実際のデータをRailsconsoleで作成する。	2022-02-23 17:43:19
Ruby	Railsタグが付けられた新着投稿 - Qiita	Ruby returnで複数の値を返す	https://qiita.com/Kmashi/items/ef213edb984138fb051c	なお、終わった後に気づきましたが、週初めと週終わりの日付は、メソッドで作成した配列から取得すればよかったので、個別で作成する必要はなかったですね。	2022-02-23 17:06:01
海外TECH	DEV Community	Component Composition in React	https://dev.to/imkevdev/component-composition-in-react-3mmk	Component Composition in ReactCross posted from One of the most misunderstood design patterns in a React application is the render props pattern and component composition While this isn t a new or novel approach and has been promoted since at least five years later I still encounter opportunities where it should have been used instead of an inheritance hierarchy Component composition is the technique of combining different modular components to construct another component Render Props But almost all components are made up of sub components so what s so special about component composition I hear you say I distinguish between a regular component and component composition by passing one or more of the sub components as props to the parent component These props are known as render props and the most commonly used render prop is the children prop which is included in React by default Let s take a look at an example import Title from Title export default function MyComponent title text return lt div className container gt lt Title title title gt lt p class text gt text lt p gt lt div gt export default function App return lt div className app gt gt lt MyComponent title Random title text Lorem ipsum gt lt div gt Inheritance Demo caption The component above might look fairly ordinary A component MyComponent renders a div element and within it there are two child elements One being the lt Title gt component and the other being a lt p gt element MyComponent receives two props the title and the text component which it outputs or passes onto the sub component Let s see the same component using the component composition pattern export default function MyComponent children return lt div className container gt children lt div gt export default function App return lt div className app gt lt MyComponent gt lt gt lt Title title Random title gt lt p className text gt Lorem ipsum lt p gt lt gt lt MyComponent gt lt div gt Component Composition Demo caption In this example the role of MyComponent is reduced to creating a div element and placing the children prop within the div The parent component which calls MyComponent is responsible for creating the lt Title gt and lt p gt elements The generated HTML in these two examples is identical Single responsibility principleWhen I was still at University studying computer science amongst the many practices we were taught there were the SOLID principles Without going into the merits of the SOLID principles the S in SOLID stands for the Single Responsibility principle and states paraphrasing that a class or function should only have one reason to change A class or function should only have one role I like that It makes it easier to understand easier to debug and makes your code more portable The component composition pattern helps enforce this practice as the role of MyComponent in the example above is to only create the div and place the children in the correct place The role of App is to construct the composition of different components required to build the module Contrary to the first example MyComponent is not responsible for choosing the order of the lt Title gt and lt p gt elements and if you would want to change their order you would need to change MyComponent This violates the Single Responsibility principle In practiceThe above example is very simple and you are unlikely to encounter this scenario in a real world environment But the concept could be applied to any component structure In addition to displaying and outputting HTML one of the more common tasks of a React component is to fetch data from a store or an API Let s compare inheritance and component composition using an example where we are fetching a list of users and then displaying these in a lt ul gt export default function UserList quantity const users setUsers useState useEffect gt fetch API URL quantity then async response gt if response ok const results await response json setUsers results quantity return lt div className container gt users amp amp Boolean users length amp amp lt ul className list gt users map n gt lt li key n login username className item gt lt UserCard username n login username city n location city profilePicture n picture thumbnail gt lt li gt lt ul gt lt div gt export default function App return lt div className app gt lt UserList quantity gt lt div gt Inheritance Data Demo caption The UserList component receives a quantity prop indicating the number of items to retrieve from the API Once the component is mounted it will make a request populate the result in the state and then display a list of UserCard sub components inside a lt ul gt Let s take a look at the same application if it were following the component composition pattern export default function Users quantity children const users setUsers useState useEffect gt fetch API URL quantity then async response gt if response ok const results await response json setUsers results quantity return children users export default function App return lt div className app gt lt Users quantity gt users gt lt div className container gt users amp amp Boolean users length amp amp lt ul className list gt users map n gt lt li key n login username className item gt lt UserCard username n login username city n location city profilePicture n picture thumbnail gt lt li gt lt ul gt lt div gt lt Users gt lt div gt Component Composition Data Demo caption The App component now renders a Users component This component is solely responsible for fetching the users from the API and returning them as a prop to the children using the return statement return children users Any child component of Users will have access to the users as a prop The App component iterates through the users it receives and creates the lt ul gt The latter approach allows you to separate fetching data from displaying it If a change request comes in that requires the data to be filtered before being displayed you immediately know that you do not need to do any changes to the Users component as the change request does not require changes to the fetching of data Demo Multiple Render PropsWhile in many cases you can use the children prop included in React in some cases you may need to place multiple sub components that will not be rendered beside each other in the DOM In these cases you may define further render props similarly to how you would assign an ordinary prop The only difference is that you pass a component export default function MyComponent headerFn children return lt gt lt div className header gt headerFn lt div gt lt hr gt lt div className container gt children lt div gt lt gt export default function App return lt div className app gt lt h gt Component Composition lt h gt lt MyComponent headerFn lt Title title Random title gt gt lt p className text gt Lorem ipsum lt p gt lt MyComponent gt lt div gt In this simple example we have added headerFn prop to MyComponent and passed lt Title title Random title gt to it MyComponent is only responsible for the DOM structure and placing the correct CSS classes while App is responsible for defining the components to be rendered ConclusionThe component composition pattern can simplify your applications making the code more portable maintainable and DRY Once you become accustomed to this pattern it is easy to apply it in almost any situation you would have previously used inheritance I hope this helped convince you to make use of component composition more often If you re not yet convinced ReactJS docs go as far as to say that they haven t found any use cases where they would recommend creating component inheritance hierarchies and Michael Jackson has a fantastic video one of many on this topic Never Write Another HoC Thank you for reading Have a good one Image credits Photo by Ricardo Gomez Angel	2022-02-23 08:49:24
海外TECH	DEV Community	🚀 Solidity Quickstart [0]	https://dev.to/byteslash/solidity-quickstart-0-f5	Solidity Quickstart Hey folks Hope y all are doing great You might have heard about web and its hype on Twitter and maybe you wanna explore it as well Well so today I am here to give all a quick tour of solidity So let s get started NOTE This blog post isn t a complete tutorial of solidity You can take this blog post as a quickstart for the journey with solidity and web If you are in search of resources checkout the resources notion page of X Days of Solidity What s Solidity Solidity is a programming language for implementing smart contracts Smart contracts are simply programs stored on a blockchain that run when predetermined conditions are met An advantage of these programs is that you can verify they are what they are and do what they claim they are doing This allows for a permission less autonomous ecosystem between untrusted and anonymous stakeholders Solidity is a curly bracket language with the influence of C Python and JavaScript being visible Enough of theory now let s dive into solidity Setting up developer environmentBefore working with Solidity we would have to set up our development environment in such a way that we could local test them Magical powers of HardhatWe would be using a tool called Hardhat This would create a local Ethereum network and give us fake test ETH and fake test accounts to work with Sounds interesting right So what are you waiting for so let s set up Hardhat Create a new folder for the project mkdir x days of solidityNavigate into that folder cd x days of solidityInitializing the project npm init yIf you get an error saying npm command not found then go ahead and install NodeJS from Install the LTS versionInstalling Hardhat npx hardhatYou would be presented with a prompt something like thisLet s choose the first option and press enter for the rest of the optionsWe would have to install a few other dependencies as well npm install save dev chai ethereum waffle nomiclabs hardhat waffle ethers nomiclabs hardhat etherschai is a testing library ethereum waffle is the waffle package by which you can test your smart contracts nomiclabs hardhat waffle allows to test smart contracts using waffle and hardhat ethers is a library for complete Ethereum wallet implementation nomiclabs hardhat ethers is a hardhat plugin for ethers Folder structureAfter you have completed setting up the developer environment you would see a folder structure similar to thiscontracts is the folder where all our smart contracts would be stored scripts is the folder where all scripts such as run js and deploy js would be stored test is the folder where all our chai tests would be stored Hello World Let s get started by creating a smart contract using solidity that prints Hello World in the terminalFirst of all let s clean up the default hardhat contract script and test files Let s create a new file called HelloWorld sol inside the contracts folder Let s get started by adding a SPDX License Identifier It s just a fancy comment which tells the license of your smart contract In my case I am going to be using the MIT license SPDX License Identifier MITLet s now specify the the version of solidity compiler As we are using Hardhat we have to check that the solidity compiler version in the hardhat config js file is the same as we are specifying in our smart contractpragma solidity As solidity doesn t natively support console logs we would have to use the magical powers of Hardhat again Hardhat allows use to use console logs in solidity import hardhat console sol Now we have the superpowers to use console log in solidity This makes debugging much simpler Let s now start writing the actual smart contract In solidity the syntax of a smart contract is similar to classes in other programming languages contract HelloWorld constructor console log Hello World We use the contract keyword along with the contract name to define a contract Defining a contract is similar to defining a class in other programming languages like JavaScript Any code inside the constructor is run once when the contract is been deployed SPDX License Identifier MITpragma solidity import hardhat console sol contract HelloWorld constructor console log Hello World TADA We have written our first smart contract But How to run it locally Running smart contract locallyWe would use creating a script run js and run the smart contract using that script and Hardhat Create a new file called run js under the scripts folder Let s first get our smart contract compile it and generate all the necessary files under the artifact folder artifact folder is similar to a build folderconst helloWorldFactory await hre ethers getContractFactory HelloWorld Let s now deploy our compiled smart contract to the local blockchainconst helloWorld await waveContractFactory deploy We will wait until our smart contract has been officially deployed on the local blockchain await waveContract deployed We would only see the Hello World console log only after the smart contract has been officially deployed on the local blockchain because the code inside constructor only runs once when the smart contract has been deployed Let s add a console log to the run script which tells the address of the account where our smart contract has been deployed console log Contract deployed to helloWorld address Finally our run js script would look something like thisconst main async gt const helloWorldFactory await hre ethers getContractFactory HelloWorld const helloWorld await helloWorldFactory deploy await helloWorld deployed console log Contract deployed to helloWorld address const runMain async gt try await main process exit catch error console log error process exit runMain I have added a new runMain function that would catch errors while deployingNow let s run it using npx hardhat run scripts run js commandYou would see the output something like thisTADA You have created a smart contract and deployed it as wellLet s talk more about solidity now Data types in Solidity IntegersIn solidity there are two types of integers unsigned integers uint and signed integers int Unsigned integers are non negative integers whereas signed integers are negative integers PS means to the to the power of or exponent operator aka uint ranges from to uint ranges from to uint or uint ranges from to int ranges from to int ranges from to int or int ranges from to AddressThere is a special data type Address Address is a byte long size of an ethereum wallet address data type in solidity ArraySyntax lt data type gt lt array name gt size lt initialization gt In solidity you can create a fixed with only a specific length and dynamic the length of the array can be anything An array of fixed length of unassigned integersuint myFixedArray An array of the dynamic length of stringsstring myDynamicArray Array operationsLet s now talk a look at the array operation in solidity Accessing an element from an array Accessing an element from an array in solidity is just like in any other programming language SPDX License Identifier MIT pragma solidity import hardhat console sol contract AccessingElement string data hi hello yo constructor console log data Here are creating a fixed array of name data and data type string and length of We are trying to console log the second element of the array which is hello Let s try to run it now using npx hardhat scripts run jsNOTE You need to change the name of the smart contract which you are compiling in the scripts run js file TADA It workedAssigning values Let s now assign values to an array SPDX License Identifier MIT pragma solidity import hardhat console sol contract AssigningValues string data hi hello yo constructor data yo yo console log data Here we are trying to assign the value of the th element of the array as yo yo Let s test it out TADA It workedLength of an array Let s now find the length of an array You can use the length method to get the length of an array Similar to how to find the length of an array in JavaScript SPDX License Identifier MIT pragma solidity import hardhat console sol contract ArrayLength string data hi hello yo constructor console log data length Let s test it outTADA It workedPush Push is used to add elements to the end of a dynamic array SPDX License Identifier MIT pragma solidity import hardhat console sol contract AddingElement string data hi hello yo constructor data push yo yo Pop Pop is used to remove the last element from a dynamic array SPDX License Identifier MIT pragma solidity import hardhat console sol contract AddingElement string data hi hello yo constructor data pop Phew that was long StructsStructs are more complex data types where you can combine multiple data types to create your own complex data type struct myStruct address myAddress uint myNumber string myName We can use structs with arrays too struct Person string name uint age Person personArray Creates a dynamic arrayPerson james Person James Creates a new PersonpersonArray push james Adds that new person to the personArray array Variables in SoliditySyntax lt data type gt lt access modifier gt lt variable name gt Types of variablesIn solidity there are different types of variables state State variables are declared in contract scope Stored on the blockchain local Local variables are declared inside functions Destroyed after execution and not stored on the blockchain global Global variables are some special variables that can be used globally and give information about the transactions and blockchain properties Variable modifiersThere are variable modifiers for state variablesconstant disallow assignment except initialization does not occupy storage slot immutable allows exactly one assignment at construction time and is constant afterward Is stored in code The EndThat s the end folks I would be releasing another part on Solidity Quickstart on Functions in Solidity and How to deploy the smart contract to a test net such as RinkebyThe code for this entire Solidity Quickstart series would be available on my GitHub Checkout the notion board for X Days of Solidity	2022-02-23 08:46:00
海外TECH	DEV Community	Unit testing in real world: what to consider	https://dev.to/adamodigitalco/unit-testing-in-real-world-what-to-consider-o33	Unit testing in real world what to considerUnit testing known as component testing refers to a type of software testing In which software development teams test each individual unit Explore more in the article below Unit testing is an essential part of any software development project toolbox Nevertheless it sometimes can be hard to write a good unit test for a piece of code Having trouble with code testing software developers often imply their difficulties coming from the lack of fundamental testing knowledge The problems of complicated unit testing are a result of poorly designed and untestable code In this article we have provided you with definitions types benefits and tools of unit testing We discuss what makes code difficult for testing and anti pattern and bad practices software development team should avoid So that it can improve testability and benefits we can get by writing testable code Hopefully you will gain some ideas from our post What is unit testing Unit testing is a type of software testing in which a software development team will test individual units or software elements The concept of unit testing is to validate every unit of the software code compared with expectation Besides the unit testing isolates a code section and identifies its correctness It means the software unit can be a function method procedure or even module In software development life cycle unit testing is the first level of the software testing process before integration testing Unit testing in software engineering is a white box testing technique that developers will execute In a practical landscape quality assurance also does unit testing owing to time crunch or even reluctance of developers Types of unit testing in the software development life cycleSoftware development teams can implement unit testing in two ways regardless of manual testing and automated testing Manual TestingA tester manually implements test cases without using any automation tool She will manually execute each stage of unit testing Manual testing is quite tedious and time consuming especially for tests that are repetitive Besides it requires more effort to implement every test case This type of unit testing does not require any background in unit testing tools In fact it is impossible to use of automation testing during software development projects Thus there are some levels of manual testing executed For some custom software development projects manual testing is a fundamental part Automated TestingAnother type of unit testing is automated testing Software development teams use unit testing tools for automating test and test cases The automation tool records and saves your time by replaying as many times as needed without any further interventions This unit testing type uses various automation tools to enter test data into the system Furthermore automated testing can compare the expected outcomes to the actual ones and automatically create the reports Nevertheless the initial cost of building the unit testing automation tools is pretty high For unit testing software development teams utilize manual testing or automated tests to meet customer requirements This unit testing can be an individual function method procedure and module in the custom software development project What are the tremendous benefits of unit testing Software development teams use unit testing to design robust software elements that maintain code and diminish issues inside code units It is essential to perceive the importance of identifying and fixing defects in the early stages of the software development life cycle This unit testing serves various purposes Here are the tremendous benefits of unit testing Process becomes agile software development To add more new features to the existing software solution we have to change the old source code However changing things in the already tested code can be risky and costly Improving the code quality Using unit testing can automatically improve the code quality Software development teams identify the bugs throughout this unit testing process before sending them for the integration testing phase It results in a robust software development product since developers write test cases by understanding specific features Detecting bugs in the early stage Running unit testing developers detect bugs and resolve them early in the software development life cycle There can be flaws missing parts and bugs in the programmers implementation Easy to change and simplify integrations Using unit testing makes it easy to restructure change and maintain the code Besides it makes testing the code more efficient after integration Fixing a problem in the unit testing process can alter other parts of the software development process and testing stages Lowering cost When software development teams can detect bugs and resolve them during unit testing they help save cost and development time Without unit testing testers might detect bugs in a further stage after integration testing So it is hard to trace and resolve the bugs making it more time consuming and costly Available for documentation Developers can refer to the unit testing documentation when looking at the functionality at the further app development stage Besides it is easy to find the unit testing interface and work fast Easy to debug Unit testing helps simplify the debugging processes If the unit testing fails at any custom software development stage developers need to debug the code again Demonstrating the code completeness This is more useful in the agile software development processes The software development company don t get functionality built until they finish the integration process People cannot justify the code completion since it will show that you have checked the code However running unit testing will demonstrate code completion Different unit testing tools in JtestAs an IDE plugin Parasoft Jtest can leverage an open source framework such as JUnit Mockito PowerMock and Spring with guidelines It also provides one click actions to generate scale and maintain unit testing Besides this unit testing tool takes advantage of time consuming aspects of unit testing Thus it can focus on business logic and make more meaningful test cases Jtest has become one of the most popular units testing tools in JUnitIt is a free unit testing tool for the Java programming language JUnit helps provide support for assertions to define test approaches It is a unit testing tool that tests data first then inserts them into a piece of code NUnitBeing used as a unit testing framework NUnit is another unit testing tool for NUnit is an open source tool for writing scripts manually Moreover NUnit also supports data driven tests JMockitAs an open source testing tool JMockit is a code coverage tool It helps mock API with recording and verification of syntax JMockit also offers line coverage and data coverage EMMAThis unit testing tool is an open source toolkit for analyzing and reporting code in a Java programming language EMMA supports coverage types such as method line and basic block PHPUnitIt is a unit testing tool for the PHP language PHP Unit takes a small percentage of code called units and testers will test each unit separately This testing tool uses predefined methods to assert that the system should run in a specific manner Unit testing vs integration testingAnother thing is the difference between unit testing and integration testing Unit testing in software engineering verifies the performance of a small piece of code from other parts Unit testing allows us to cover all test cases with a narrow scope ensuring operation correctly in all parts However integration testing shows that various parts of a system work together in the real life programming environment It can be a user performing high level operations within the system Besides it enables validating complex situations that required external resources databases web servers When combining the unit testing and integration testing tests ensure that each unit works correctly and independently from each other Furthermore all these unit testings work correctly when being integrated It leads to a high level of confidence that the whole system will work as expected We need to detect what kind of test we are executing regardless of a unit and integration test The difference can be deceiving If we tend to write a unit test to verify some edge case in a business class it will require external resources such as web servers and databases Thus software development teams might understand the differences between unit testing and integration testing when using each unit testing separately or both of them Unit Testing ExampleIt is suitable for you to do function testing whether a loop and statement in a program are working accurately or not A beneficial unit testing example can be JUnit XUnit etc Here are some explanations of unit testing examples Module Interface In the module interface test testers check whether they properly flow into the program unit or module Local data structures The software development team inquires about the local data within various modules to be stored properly or not Boundary limitations For example many custom software development products often fail at boundaries regardless of conditions That s why the boundary related conditions will be tested It makes sure that the program is appropriately working at that boundary Independent amp errors solving paths The software development teams use unit testing to see they are implementing their tasks at the end of the program Besides testers will review the unit testing to review in case of solving the errors properly by themselves or not At last it concludes that the unit testing focuses on the different modules of the custom software development products Closing thoughtsIt is essential to conclude that tests can only test each software function independently This type of unit testing saves time and cost Furthermore there is sometimes a requirement to generate mock objects to fulfill the dependency of a function In this post we have only provided the importance of unit testing regardless of definition benefits types and tools Besides we also define the difference between unit testing and integration testing Software development teams might consider various aspects of unit testing to develop custom software development projects	2022-02-23 08:23:06
海外TECH	DEV Community	Dependency Wheel using VueJS 4/10	https://dev.to/101samovar/dependency-wheel-using-vuejs-410-5hk1	Dependency Wheel using VueJS In this video we will build a data repository on the client side The repository will perform basic data operations on the client getting creating deleting and editing Since the data is stored on the backend side we just need to call the appropriate API methods Video tutorialSourse code	2022-02-23 08:03:53
海外TECH	Engadget	Court rules that Waymo can keep its robotaxi emergency protocols a secret	https://www.engadget.com/court-rules-waymo-can-keep-robotaxi-emergency-protocols-secret-084641836.html?src=rss	Court rules that Waymo can keep its robotaxi emergency protocols a secretThe California Superior Court in Sacramento has ruled in favor of Waymo allowing the company to keep specific details about its autonomous vehicle technology a secret Waymo won the case against the California Department of Motor Vehicles which it sued back in January to prevent the agency from disclosing what it considers trade secrets that could give its competitors an edge While the Alphabet company filed a lawsuit against the DMV it was an unidentified party that made a public records request for its driverless technology that started it all The DMV gave Waymo the chance to redact information it deems to be trade secrets from its driverless deployment application before handing the copy over to the requester However the third party challenged the blacked out sections and the DMV had advised Waymo to seek an injunction if it wants to prohibit the disclosure of the redacted materials nbsp The information Waymo wants to keep secret includes how it plans to handle emergencies such as how it analyzes collisions involving its vehicles and how its technology decides when to hand over control to a human driver It also includes its software s ability to handle the one way streets and hills of San Francisco where the company offers a robotaxi service nbsp In its lawsuit PDF Waymo said allowing the release of its trade secrets will have a quot chilling effect across the industry quot and could dissuade other companies from investing time and money into developing autonomous vehicle technologies As TechCrunch notes though it s unclear if all the information Waymo redacted truly are trade secrets that it needs to keep from competitors or if some are safety details that could answer concerns raised by the public In a statement a Waymo spokeperson told TechCrunch quot We re pleased that the court reached the right decision in granting Waymo s request for a preliminary injunction precluding the disclosure of competitively sensitive trade secrets that Waymo had included in the permit application it submitted to the CA DMV We will continue to openly share safety and other data on our autonomous driving technology and operations while recognizing that detailed technical information we share with regulators is not always appropriate for sharing with the public quot	2022-02-23 08:46:41
海外ニュース	Japan Times latest articles	South Korean support for a domestic nuclear arsenal is growing — for surprising reasons	https://www.japantimes.co.jp/news/2022/02/23/asia-pacific/south-korea-nuclear-weapons-survey/	South Korean support for a domestic nuclear arsenal is growing ーfor surprising reasonsA new survey has found that a “robust majority strongly backs a domestic nuclear program over stationing U S nukes in the country with China cited	2022-02-23 17:41:28
ニュース	BBC News - Home	Ukraine conflict: Putin tells Russians security is non-negotiable	https://www.bbc.co.uk/news/world-europe-60490660?at_medium=RSS&at_campaign=KARANGA	ukraine	2022-02-23 08:47:07
ニュース	BBC News - Home	Ukraine crisis: UK ready to escalate Russian sanctions, says Truss	https://www.bbc.co.uk/news/uk-60488633?at_medium=RSS&at_campaign=KARANGA	russia	2022-02-23 08:44:57
ニュース	BBC News - Home	Metaverse app allows kids into virtual strip clubs	https://www.bbc.co.uk/news/technology-60415317?at_medium=RSS&at_campaign=KARANGA	reality	2022-02-23 08:18:34
ニュース	BBC News - Home	Covid: Delay surgery after Omicron and support fraud's impact on taxpayers	https://www.bbc.co.uk/news/uk-60485161?at_medium=RSS&at_campaign=KARANGA	coronavirus	2022-02-23 08:03:39
ニュース	BBC News - Home	River Severn flooding: Severe warnings remain in place	https://www.bbc.co.uk/news/uk-england-hereford-worcester-60490081?at_medium=RSS&at_campaign=KARANGA	worcestershire	2022-02-23 08:26:22
ニュース	BBC News - Home	Barclays freezes ex-boss's bonus amid Epstein links	https://www.bbc.co.uk/news/business-60490377?at_medium=RSS&at_campaign=KARANGA	epstein	2022-02-23 08:10:04
ニュース	BBC News - Home	Zverev thrown out of Mexican Open after attacking umpire's chair	https://www.bbc.co.uk/sport/tennis/60490225?at_medium=RSS&at_campaign=KARANGA	Zverev thrown out of Mexican Open after attacking umpire x s chairAlexander Zverev is thrown out of the Mexican Open for unsportsmanlike conduct after attacking the umpire s chair at the end of a doubles match	2022-02-23 08:48:00
ビジネス	ダイヤモンド・オンライン - 新着記事	岸田政権の"ゆがんだ新資本主義"が明らかに。 誰も得をしないどころか欠点ばかり、 「四半期決算開示の是正」問題をぶった斬る！ - 「勝者のゲーム」と資産運用入門	https://diamond.jp/articles/-/296913	ampquot	2022-02-23 17:05:00
北海道	北海道新聞	雪の重みで屋根倒壊 札幌市北区の商業施設	https://www.hokkaido-np.co.jp/article/649035/	商業施設	2022-02-23 17:16:23
北海道	北海道新聞	共産、国民民主との共闘困難　参院選巡り、予算案賛成で	https://www.hokkaido-np.co.jp/article/649046/	書記局長	2022-02-23 17:14:00
北海道	北海道新聞	音威子府村の「トリセツ」　ユニークな改訂版観光パンフ　取扱説明書そっくりに	https://www.hokkaido-np.co.jp/article/649044/	上川管内	2022-02-23 17:09:09
北海道	北海道新聞	コンサ、鳥栖と引き分け　ルヴァン・カップ	https://www.hokkaido-np.co.jp/article/649045/	引き分け	2022-02-23 17:07:00
北海道	北海道新聞	ワクチン相が楽天を視察　接種協力に謝意	https://www.hokkaido-np.co.jp/article/649043/	楽天グループ	2022-02-23 17:05:00
IT	週刊アスキー	10日間限定！ロッテリア「ひなまつり30％オフパック」	https://weekly.ascii.jp/elem/000/004/084/4084283/	特別価格	2022-02-23 17:30:00
海外TECH	reddit	みんなのストレス解消法を教えてくれ、今ストレスで脳みそが爆発しそうだからとりあえずドカ食いでもしようかと悩んでるとこなんだけど	https://www.reddit.com/r/newsokunomoral/comments/szc1mg/みんなのストレス解消法を教えてくれ今ストレスで脳みそが爆発しそうだからとりあえずドカ食いでもしようか/	ewsokunomorallinkcomments	2022-02-23 08:03:19