36 Courses about Testing in Sheffield delivered Live Online

Duration 3 Days 18 CPD hours This course is intended for Developers, Functional Testers, Test Automation Specialists, Performance Specialists, Environment and Data Specialists, Security Specialists Prerequisites for taking part in the workshop: It is recommended that participants should have completed the ISTQB© Certified Tester Foundation Level certification, or have attended the workshop. Overview Defined tasks need to be structured according to the technical requirements and the internal structure of the system needs to be analysed in detail in order to achieve the expected level of quality and detect errors during development. The ISTQB© Advanced Level Technical Test Analyst certification will teach you on the basis of the current ISTQB© Advanced Level syllabus. The various procedures, techniques and tools for non-functional system testing will be explained, and you will then be in a position to apply these in your future work as a Technical Test Analyst. The three-day certification will be followed by a two-hour examination. During the workshop, our experienced trainers will fully prepare you for the ISTQB© Advanced Level Technical Test Analyst examination. Following on from the ISTQB© Certified Tester Foundation Level training, this workshop covers the increasing technical challenges faced by system testing in particular. Topic 1 Tasks of a Technical Test Analyst in risk-based testing Topic 2 Structure-based testing: Simple condition test, condition/decision test, modified condition/decision test, multiple condition test, path test, API test, selection of structure-based procedures Topic 3 Analytical testing methods: static analysis (control flow analysis, data flow analysis, improved maintainability/adaptability with static analysis, call graphs), dynamic analysis (detection of memory leaks/?rogue? pointers, analysis of system performance) Topic 4 Quality features in technical tests (ISO 25000 standard): Planning aspects of technical testing, security testing, reliability testing, performance testing, resource usage, maintainability testing, portability testing Topic 5 Review checklists (architecture and code reviews) Topic 6 Testing tools and automation, tool integration, test automation projects, specific testing tools Topic 7 Practical exercises on all core topics Notes In order to take the examination, you must show at least 18 months? practical experience as a tester and be certified at ISTQB© Foundation Level. Confirmation from your employer or from your reference customers are accepted as proof of practical experience. Additional course details: Nexus Humans ISTQB Certified Tester, Advanced Level - Technical Test Analyst training program is a workshop that presents an invigorating mix of sessions, lessons, and masterclasses meticulously crafted to propel your learning expedition forward. This immersive bootcamp-style experience boasts interactive lectures, hands-on labs, and collaborative hackathons, all strategically designed to fortify fundamental concepts. Guided by seasoned coaches, each session offers priceless insights and practical skills crucial for honing your expertise. Whether you're stepping into the realm of professional skills or a seasoned professional, this comprehensive course ensures you're equipped with the knowledge and prowess necessary for success. While we feel this is the best course for the ISTQB Certified Tester, Advanced Level - Technical Test Analyst course and one of our Top 10 we encourage you to read the course outline to make sure it is the right content for you. Additionally, private sessions, closed classes or dedicated events are available both live online and at our training centres in Dublin and London, as well as at your offices anywhere in the UK, Ireland or across EMEA.

Duration 3 Days 18 CPD hours This course is intended for The target audience for this course includes: Software testers (both technical and user acceptance testers), Test analysts, Test engineers, Test consultants, Software developers, Managers including test managers, project managers, quality managers. Overview By the end of this course, an attendee should be able to: perform effective testing of software, be aware of techniques and standards, have an awareness of what testing tools can achieve, where to find more information about testing, and establish the basic steps of the testing process. This is an ISTQB certification in software testing for the US. In this course you will study all of the basic aspects of software testing and QA, including a comprehensive overview of tasks, methods, and techniques for effectively testing software. This course prepares you for the ISTQB Foundation Level exam. Passing the exam will grant you an ISTQB CTFL certification. Fundamentals of Testing What is Testing? Typical Objectives of Testing Testing and Debugging Why is Testing Necessary? Testing?s Contributions to Success Quality Assurance and Testing Errors, Defects, and Failures Defects, Root Causes and Effects Seven Testing Principles Test Process Test Process in Context Test Activities and Tasks Test Work Products Traceability between the Test Basis and Test Work Products The Psychology of Testing Human Psychology and Testing Tester?s and Developer?s Mindsets Testing Throughout the Software Development Lifecycle Software Development Lifecycle Models Software Development and Software Testing Software Development Lifecycle Models in Context Test Levels Component Testing Integration Testing System Testing Acceptance Testing Test Types Functional Testing Non-functional Testing White-box Testing Change-related Testing Test Types and Test Levels Maintenance Testing Triggers for Maintenance Impact Analysis for Maintenance Static Testing Static Testing Basics Work Products that Can Be Examined by Static Testing Benefits of Static Testing Differences between Static and Dynamic Testing Review Process Work Product Review Process Roles and responsibilities in a formal review Review Types Applying Review Techniques Success Factors for Reviews Test Techniques Categories of Test Techniques Choosing Test Techniques Categories of Test Techniques and Their Characteristics Black-box Test Techniques Equivalence Partitioning Boundary Value Analysis Decision Table Testing State Transition Testing Use Case Testing White-box Test Techniques Statement Testing and Coverage Decision Testing and Coverage The Value of Statement and Decision Testing Experience-based Test Techniques Error Guessing Exploratory Testing Checklist-based Testing Test Management Test Organization Independent Testing Tasks of a Test Manager and Tester Test Planning and Estimation Purpose and Content of a Test Plan Test Strategy and Test Approach Entry Criteria and Exit Criteria (Definition of Ready and Definition of Done) Test Execution Schedule Factors Influencing the Test Effort Test Estimation Techniques Test Monitoring and Control Metrics Used in Testing Purposes, Contents, and Audiences for Test Reports Configuration Management Risks and Testing Definition of Risk Product and Project Risks Risk-based Testing and Product Quality Defect Management Tool Support for Testing Test Tool Considerations Test Tool Classification Benefits and Risks of Test Automation Special Considerations for Test Execution and Test Management Tools Effective Use of Tools Main Principles for Tool Selection Pilot Projects for Introducing a Tool into an Organization Success Factors for Tools Additional course details: Nexus Humans ISTQB Software Testing Certification Training - Foundation Level (CTFL) training program is a workshop that presents an invigorating mix of sessions, lessons, and masterclasses meticulously crafted to propel your learning expedition forward. This immersive bootcamp-style experience boasts interactive lectures, hands-on labs, and collaborative hackathons, all strategically designed to fortify fundamental concepts. Guided by seasoned coaches, each session offers priceless insights and practical skills crucial for honing your expertise. Whether you're stepping into the realm of professional skills or a seasoned professional, this comprehensive course ensures you're equipped with the knowledge and prowess necessary for success. While we feel this is the best course for the ISTQB Software Testing Certification Training - Foundation Level (CTFL) course and one of our Top 10 we encourage you to read the course outline to make sure it is the right content for you. Additionally, private sessions, closed classes or dedicated events are available both live online and at our training centres in Dublin and London, as well as at your offices anywhere in the UK, Ireland or across EMEA.

Duration 5 Days 30 CPD hours This course is intended for Test Programme Managers, Test Managers, and anyone else wishing to take the ISTQB© Certified Tester Advanced Level Test Manager examination. Overview Whilst this course is focused on the syllabus, giving participants the maximum chance of passing the examination, it also contains many real world practical examples. On completion of this course, attendees will have an advanced understanding of test design techniques and will be fully prepared to take the ISTQB© Certified Tester Advanced Level Test Manager examination. ISTQB© is the standard for international qualifications in software testing at an advanced level. The course thoroughly prepares attendees for the ISTQB© Certified Tester Advanced Level Test Manager examination. Testing Process The fundamental test process Test levels and test types Test planning, monitoring and control Test analysis Test design Test implementation Test execution Evaluating exit criteria and reporting Test closure activities Test Management Test management in context Risk-based testing and other approaches for test prioritization and effort allocation Test documentation and other work products Project risk management Other test work products Test estimation Defining and using test metrics Business value of testing Distributed, outsourced, and insourced testing Managing the application of industry standards Reviews Management reviews and audits Managing reviews Metrics for reviews Managing formal reviews Defect Management The defect lifecycle and the software development lifecycle Cross-functional defect management Defect report information Assessing process capability with defect report information Improving the Testing Process Introduction Test improvement process Improving the testing process Improving the testing process with TMMI Improving the testing process with TPI Next Improving the testing process with CTP Improving the testing process with STEP Test Tools and Automation Tool selection Return on investment (ROI) Selection process Tool lifecycle Tool metrics People Skills ? Team Composition Individual skills Test team dynamics Fitting testing within an organization Motivation Communication

Duration 2 Days 12 CPD hours This course is intended for This in an introductory-level course geared for QA, Test team members and others who want to use the Python testing framework PyTest to implement code testing strategies. Attendees should have prior basic Python scripting experience. Students should have some familiarity with tools to be used in this course: PyCharm, Jupyter Notebook and basic GIT. Overview Working within in a hands-on learning environment students will learn to: Become proficient with pytest from day one by solving real-world testing problems Use pytest to write tests more efficiently Scale from simple to complex and functional testing Write and run simple and complex tests Organize tests in fles and directories Find out how to be more productive on the command line Markers and how to skip, xfail and parametrize tests Explore fxtures and techniques to use them effectively, such as tmpdir, pytestconfg, and monkeypatch Convert unittest suites to pytest using little-known techniques The pytest framework is simple to use but powerful enough to cover complex testing integration scenarios. PyTest is considered by many to be the true Pythonic approach to testing in Python. Geared for QA, Test team members and others who want to use the Python testing framework PyTest to implement code testing strategies, Test Automation with Python is a hands-on, two day Python testing course that provides students with the skills required to get started with PyTest right away. Participnats will learn how to get the most out of it in their daily workflow, exploring powerful mechanisms and plugins to facilitate many common testing tasks. Students will also learn how to use pytest in existing unittestbased test suites and will learn some tricks to make the jump to a pytest-style test suite quickly and easily. Python Refresher Python Overview Python Basics Python Lab Introducing PyTest Why Spend time writing test UnitTest Module Why PyTest? Introductory Lab Writing and Running Test Installing PyTest Writing and Running Tests Organizing files and packages Command Line options Configure pytest.ini Install and Config Lab Markers and Parameters Mark Basics Built-in marks Parameterization Markers and Parameters Lab Fixtures Introduction to Fixtures Sharing fixtures with conftest.py files Scopes Autouse Parameterizing fixtures Using marks from fixtures Built-in fixtures Best Practices Fixtures Lab Fixtures Lab 2 Plugins Finding and installing plugins Overview of plugins Plugin Lab From UnitTest to PyTest Use PyTest as a Test Runner Convert asserts with unitest2pytest Handling setup/teardown Managing test hierarchies Refactoring test utilities Migration strategies Additional course details: Nexus Humans Test Automation with Python (TTPS4832) training program is a workshop that presents an invigorating mix of sessions, lessons, and masterclasses meticulously crafted to propel your learning expedition forward. This immersive bootcamp-style experience boasts interactive lectures, hands-on labs, and collaborative hackathons, all strategically designed to fortify fundamental concepts. Guided by seasoned coaches, each session offers priceless insights and practical skills crucial for honing your expertise. Whether you're stepping into the realm of professional skills or a seasoned professional, this comprehensive course ensures you're equipped with the knowledge and prowess necessary for success. While we feel this is the best course for the Test Automation with Python (TTPS4832) course and one of our Top 10 we encourage you to read the course outline to make sure it is the right content for you. Additionally, private sessions, closed classes or dedicated events are available both live online and at our training centres in Dublin and London, as well as at your offices anywhere in the UK, Ireland or across EMEA.

Duration 2 Days 12 CPD hours This course is intended for The target audience for the DevOps Test Engineering course is anyone involved in defining a DevOps Testing strategy, such as: Delivery Staff DevOps Engineers IT Managers Project Managers Lab Staff Maintenance and Support Staff Quality Assurance Managers Quality Assurance Teams Release Managers Testers Software Engineers Overview The learning objectives for DTE include a practical understanding of: The purpose, benefits, concepts and vocabulary of DevOps testing How DevOps testing differs from other types of testing DevOps testing strategies, test management and results analysis Strategies for selecting test tools and implementing test automation Integration of DevOps testing into Continuous Integration and Continuous Delivery workflows How DevOps testers fit with a DevOps culture, organization and roles This comprehensive course addresses testing in a DevOps environment and covers concepts such as the active use of test automation, testing earlier in the development cycle, and instilling testing skills in developers, quality assurance, security, and operational teams. The course is relevant for every modern IT professional involved in defining or deploying a DevOps testing strategy for their organization, as test engineering is the backbone of DevOps and the primary key for successful DevOps pipeline to support digital transformation. This course prepares you for the Continuous Testing Foundation(CTF) certification. Course Objectives and Modules, Logistics What is DevOps Testing and its Business Benefits?Relation of DevOps Testing in other Test MethodologiesDevOps Testing Best Practices DevOps Testing Terminology Culture changes Organization changes Process and team friction Motivation strategies Measuring Success Continuous Evolution Troubleshooting What is the DevOps pipeline? DevOps Testing on the pipeline Test strategy choices Pre-Flight strategies Continuous Integration Testing System, Delivery and Customer Testing Test Environments Lab Management Topology orchestration Test Automation Frameworks Test Tools Selection criterion Automated metrics Key concepts Test Case Best Practices & Design Exercise Test Suite Best Practices & Design Exercise Principles of DevOps Management DevOps Test Management Metrics DevOps Management Tools DevOps Test Results Analysis Integrating DevOps Results Analysis Test Management Exercise Fictitious Product Test Requirements Individual Exercise Class discussion Exam Preparation

Duration 3 Days 18 CPD hours This course is intended for Anyone who wants to qualify as a professional tester. The certification also offers good qualifications for builders, designers, programmers and project managers Overview This three-day training provides a general introduction to information systems testing. The objective of the training is to prepare the students for the ISTQB Foundation exam. Some important topics that will certainly be discussed here are the importance of testing, testing in relation to system development and the fundamentals of a structured testing process. The different phases in a test project are explained, after which some test techniques (both black box and white box) are also discussed. This foundation training therefore contains the basis in testing for both test managers and testers. In addition to theory, the training also includes a number of mock exams, so that the topics covered are placed even better in the exam context. Course Outline test principles life cycle testing static techniques test specification techniques blackbox techniques whitebox techniques and experienced based techniques Additional course details: Nexus Humans Certified Tester Foundation Level (CTFL) training program is a workshop that presents an invigorating mix of sessions, lessons, and masterclasses meticulously crafted to propel your learning expedition forward. This immersive bootcamp-style experience boasts interactive lectures, hands-on labs, and collaborative hackathons, all strategically designed to fortify fundamental concepts. Guided by seasoned coaches, each session offers priceless insights and practical skills crucial for honing your expertise. Whether you're stepping into the realm of professional skills or a seasoned professional, this comprehensive course ensures you're equipped with the knowledge and prowess necessary for success. While we feel this is the best course for the Certified Tester Foundation Level (CTFL) course and one of our Top 10 we encourage you to read the course outline to make sure it is the right content for you. Additionally, private sessions, closed classes or dedicated events are available both live online and at our training centres in Dublin and London, as well as at your offices anywhere in the UK, Ireland or across EMEA.

Duration 4 Days 24 CPD hours This course is intended for Data Analysts responsible for data quality using QualityStageData Quality ArchitectsData Cleansing Developers Overview List the common data quality contaminantsDescribe each of the following processes: Investigation, Standardization, Match. & SurvivorshipDescribe QualityStage architectureDescribe QualityStage clients and their functionsImport metadataBuild and run DataStage/QualityStage jobs, review resultsBuild Investigate jobsUse Character Discrete, Concatenate, and Word Investigations to analyze data fieldsDescribe the Standardize stageIdentify Rule SetsBuild jobs using the Standardize stageInterpret standardization resultsInvestigate unhandled data and patternsBuild a QualityStage job to identify matching recordsApply multiple Match passes to increase efficiencyInterpret and improve match resultsBuild a QualityStage Survive job that will consolidate matched records into a single master recordBuild a single job to match data using a Two-Source match This course teaches how to build QualityStage parallel jobs that investigate, standardize, match, and consolidate data records. Students will gain experience by building an application that combines customer data from three source systems. Data Quality Issues Listing the common data quality contaminants Describing data quality processes QualityStage Overview Describing QualityStage architecture Describing QualityStage clients and their functions Developing with QualityStage Importing metadata Building DataStage/QualityStage Jobs Running jobs Reviewing results Investigate Building Investigate jobs Using Character Discrete, Concatenate, and Word Investigations to analyze data fields Reviewing results Standardize Describing the Standardize stage Identifying Rule Sets Building jobs using the Standardize stage Interpreting standardize results Investigating unhandled data and patterns Match Building a QualityStage job to identify matching records Applying multiple Match passes to increase efficiency Interpreting and improving Match results Survive Building a QualityStage survive job that will consolidate matched records into a single master record Two-Source Match Building a QualityStage job to match data using a reference match Additional course details: Nexus Humans KM213 IBM InfoSphere QualityStage Essentials v11.5 training program is a workshop that presents an invigorating mix of sessions, lessons, and masterclasses meticulously crafted to propel your learning expedition forward. This immersive bootcamp-style experience boasts interactive lectures, hands-on labs, and collaborative hackathons, all strategically designed to fortify fundamental concepts. Guided by seasoned coaches, each session offers priceless insights and practical skills crucial for honing your expertise. Whether you're stepping into the realm of professional skills or a seasoned professional, this comprehensive course ensures you're equipped with the knowledge and prowess necessary for success. While we feel this is the best course for the KM213 IBM InfoSphere QualityStage Essentials v11.5 course and one of our Top 10 we encourage you to read the course outline to make sure it is the right content for you. Additionally, private sessions, closed classes or dedicated events are available both live online and at our training centres in Dublin and London, as well as at your offices anywhere in the UK, Ireland or across EMEA.

Duration 5 Days 30 CPD hours This course is intended for This course is intended for individuals who want to learn how to program Android applications using the Java Programming Language. Overview Upon successful completion of this course, students will have an understanding of basic application Android development. This course will teach the basics of Android Development using the Java Programming Language and Android Studio. Introduction and Setup Android Studio Development Essentials Introduction Setting up an Android Studio Development Environment Creating an Example Android App in Android Studio A Tour of the Android Studio User Interface Creating an Android Virtual Device (AVD) in Android Studio Using and Configuring the Android Studio AVD Emulator Testing Android Studio Apps on a Physical Android Device The Basics of the Android Studio Code Editor Android Architecture and State Changes An Overview of the Android Architecture The Anatomy of an Android Application Understanding Android Application and Activity Lifecycles Handling Android Activity State Changes Android Activity State Changes by Example Saving and Restoring the State of an Android Activity Views and Layouts Understanding Android Views, View Groups and Layouts in Android Studio A Guide to the Android Studio Layout Editor Tool A Guide to the Android ConstraintLayout A Guide to using ConstraintLayout in Android Studio An Android Studio Layout Editor ConstraintLayout Tutorial Manual XML Layout Design in Android Studio Creating an Android User Interface in Java Code Event Handling An Overview and Example of Android Event Handling A Guide to using Instant Run in Android Studio Android Touch and Multi-touch Event Handling Detecting Common Gestures using Android Studio and the Gesture Detector Class Implementing Custom Gesture and Pinch Recognition on Android Advanced Layout and Transitions An Introduction Android Fragments Using Fragments in Android Studio - An Example Creating and Managing Overflow Menus on Android Animating User Interfaces with the Android Transitions Framework An Android Transition Tutorial using beginDelayedTransition Implementing Android Scene Transitions ? A Tutorial Working with the Floating Action Button and Snackbar Creating a Tabbed Interface using the TabLayout Component Working with the RecyclerView and CardView Widgets An Android RecyclerView and CardView Tutorial Working with the AppBar and Collapsing Toolbar Layouts Implementing an Android Navigation Drawer An Android Studio Master/Detail Flow Tutorial Intents, Threads, Services, and Notifications An Overview of Android Intents Android Explicit Intents ? A Worked Example Android Implicit Intents ? A Worked Example Android Broadcast Intents and Broadcast Receivers A Basic Overview of Threads and Thread Handlers An Overview of Android Started and Bound Services Implementing an Android Started Service - A Worked Example Android Local Bound Services - A Worked Example Android Remote Bound Services - A Worked Example An Android 7 Notifications Tutorial An Android 7 Direct Reply Notification Tutorial Data Access and Storage Integrating Firebase Support into an Android Studio Project An Android 7 Firebase Remote Notification Tutorial An Introduction to Android 7 Multi-Window Support An Android Studio Multi-Window Split-Screen and Freeform Tutorial An Overview of Android SQLite Databases in Android Studio An Android TableLayout and TableRow Tutorial An Android SQLite Database Tutorial Understanding Android Content Providers Implementing an Android Studio Content Provider in Android Studio Accessing Cloud Storage using the Android Storage Access Framework An Android Storage Access Framework Example Multimedia, Maps and Printing Video Playback on Android VideoView and MediaController Classes Video Recording and Image Capture using Camera Intents Making Runtime Permission Requests in Android Android Audio Recording and Playback using MediaPlayer and MediaRecorder Working with the Google Maps Android API in Android Studio Printing with the Android Printing Framework An Android HTML and Web Content Printing Example A Guide to Android Custom Document Printing Final Build An Android Fingerprint Authentication Tutorial Handling Different Android Devices and Displays Signing and Preparing an Android Application for Release Integrating Google Play In-app Billing into an Android Application An Overview of Gradle in Android Studio An Android Studio Gradle Build Variants Example Additional course details: Nexus Humans Android Studio Development Essentials training program is a workshop that presents an invigorating mix of sessions, lessons, and masterclasses meticulously crafted to propel your learning expedition forward. This immersive bootcamp-style experience boasts interactive lectures, hands-on labs, and collaborative hackathons, all strategically designed to fortify fundamental concepts. Guided by seasoned coaches, each session offers priceless insights and practical skills crucial for honing your expertise. Whether you're stepping into the realm of professional skills or a seasoned professional, this comprehensive course ensures you're equipped with the knowledge and prowess necessary for success. While we feel this is the best course for the Android Studio Development Essentials course and one of our Top 10 we encourage you to read the course outline to make sure it is the right content for you. Additionally, private sessions, closed classes or dedicated events are available both live online and at our training centres in Dublin and London, as well as at your offices anywhere in the UK, Ireland or across EMEA.

Duration 1.5 Days 9 CPD hours This course is intended for This course is designed for software developers or anyone interested in building Android applications. Overview Install Android Studio. Writing a Java Program. Run a Java Program. Write a Java Comment. Understand Java Variables and Their Data Types. Acquiring Good Knowledge of Java Control Flow Statements. Understanding The Java Methods and Arrays. Understanding the Object-Oriented Programming (OOP) Concepts and Java Class. Developing applications for Android? systems requires basic knowledge of Java programming language. Introductory course that focuses on the fundamentals of Java programming language, its framework, syntax, and paradigm. First Step in Java The History of Java How Java Programs work? Install Java JDK and JRE Why did Google choose Java over other programming languages? Android OS Structure Install Android Studio Create and Run Java Projects Creating an Android Project (Java Project) Using Android Studio Writing a Java Program Java Methods Running a Java Program Write a Comment Java Variables and Their Data Type Control Flow Statements Introduction IF ? Else Statement If?Else and Else?If... Statement If Else and Logical Operators Switch Statement While Loop Do-while Loop For Loop The Break Statement The Continue Statement Methods and Arrays Introduction Method Structure Call Method by Value Call Method by Reference Arrays Enter Data to Java Program Object-Oriented Programming (OOP) Concepts Java Class Additional course details: Nexus Humans Java Fundamentals for Android Development training program is a workshop that presents an invigorating mix of sessions, lessons, and masterclasses meticulously crafted to propel your learning expedition forward. This immersive bootcamp-style experience boasts interactive lectures, hands-on labs, and collaborative hackathons, all strategically designed to fortify fundamental concepts. Guided by seasoned coaches, each session offers priceless insights and practical skills crucial for honing your expertise. Whether you're stepping into the realm of professional skills or a seasoned professional, this comprehensive course ensures you're equipped with the knowledge and prowess necessary for success. While we feel this is the best course for the Java Fundamentals for Android Development course and one of our Top 10 we encourage you to read the course outline to make sure it is the right content for you. Additionally, private sessions, closed classes or dedicated events are available both live online and at our training centres in Dublin and London, as well as at your offices anywhere in the UK, Ireland or across EMEA.

Duration 3 Days 18 CPD hours Discover and explore how to use the fundamental building blocks of the Swift programming language. class will teach you the basic concepts of Swift programming, including syntax, logic, structures, functions, and patterns. It also includes detailed explanations of language syntax and coding exercises. Introduction to Swift Constants, Variables, and Data TypesOperatorsControl FlowStrings & FunctionsStructures & ClassesOptionalsCollectionsLoopsType CastingGuard StatementsScope & EnumerationsProtocolsClosuresExtensions