Developer-level and system-level testing are discussed. Developer-level testing involves unit, integration, and regression tests written by developers before committing code. System tests are run after code is merged and deployed to integration environments. Mobile platform testing is also discussed, noting it has compressed processes due to resource constraints, focusing on unit, smoke, and acceptance tests, with pre-flight checks currently being manual. Test-driven development and associated tools are briefly introduced.
Lets break some code. In this workshop we will be going over some of the fundamental concepts of software testing and take a hands on approach to writing Unit and Integration tests. We will cover topics such as mocking, stubbing, database patching and how this can all fit into a continuous integration environment like Jenkins.
Software testing is the process of executing software in a controlled manner. It is often used in association with the terms verification and validation. Verification is the checking or testing of items, including software, for conformance and consistency with an associated specification. Software testing is just one kind of verification, which also uses techniques such as reviews, analysis, inspections and walk throughs. Validation is the process of checking that what has been specified is what the user actually wanted.
The Art of Testing Less without Sacrificing Quality @ ICSE 2015Kim Herzig
Testing is a key element of software development processes for the management and assessment of product quality. In most development environments, the software engineers are responsible for ensuring the functional correctness of code. However, for large complex software products, there is an additional need to check that changes do not negatively impact other parts of the software and they comply with system constraints such as backward compatibility, performance, security etc. Ensuring these system constraints may require complex verification infrastructure and test procedures. Although such tests are time consuming and expensive and rarely find defects they act as an insurance process to ensure the software is compliant. However, long lasting tests increasingly conflict with strategic aims to shorten release cycles. To decrease production costs and to improve development agility, we created a generic test selection strategy called THEO that accelerates test processes without sacrificing product quality. THEO is based on a cost model, which dynamically skips tests when the expected cost of running the test exceeds the expected cost of removing it. We replayed past development periods of three major Microsoft products resulting in a reduction of 50% of test executions, saving millions of dollars per year, while maintaining product quality.
Lets break some code. In this workshop we will be going over some of the fundamental concepts of software testing and take a hands on approach to writing Unit and Integration tests. We will cover topics such as mocking, stubbing, database patching and how this can all fit into a continuous integration environment like Jenkins.
Software testing is the process of executing software in a controlled manner. It is often used in association with the terms verification and validation. Verification is the checking or testing of items, including software, for conformance and consistency with an associated specification. Software testing is just one kind of verification, which also uses techniques such as reviews, analysis, inspections and walk throughs. Validation is the process of checking that what has been specified is what the user actually wanted.
The Art of Testing Less without Sacrificing Quality @ ICSE 2015Kim Herzig
Testing is a key element of software development processes for the management and assessment of product quality. In most development environments, the software engineers are responsible for ensuring the functional correctness of code. However, for large complex software products, there is an additional need to check that changes do not negatively impact other parts of the software and they comply with system constraints such as backward compatibility, performance, security etc. Ensuring these system constraints may require complex verification infrastructure and test procedures. Although such tests are time consuming and expensive and rarely find defects they act as an insurance process to ensure the software is compliant. However, long lasting tests increasingly conflict with strategic aims to shorten release cycles. To decrease production costs and to improve development agility, we created a generic test selection strategy called THEO that accelerates test processes without sacrificing product quality. THEO is based on a cost model, which dynamically skips tests when the expected cost of running the test exceeds the expected cost of removing it. We replayed past development periods of three major Microsoft products resulting in a reduction of 50% of test executions, saving millions of dollars per year, while maintaining product quality.
This tutorial displays the list of non functional testing attributes which are helpful while build the software for any purpose. It will be definitely guide for a newbie developer or beginner to understand the concept of non functional testing.
This tutorial displays the list of non functional testing attributes which are helpful while build the software for any purpose. It will be definitely guide for a newbie developer or beginner to understand the concept of non functional testing.
Foundation level testing Concepts,Non function testing ,Non-Functional testing ,Selenium Tool,
What is Software Testing Software Testing is an activity in software development.
It is an investigation performed against a software to provide information about the quality of the software to stakeholders.
Software testing is associated with the two terms.
Validation: Are we doing the right job?
Verification: Are we doing the job right?
Case study "Virtual Show Room" – VSR,water fall model,General Principles of Testing,
The General V-Model
Unit Testing
Component Testing
Integration Testing
System Testing
Acceptance Testing
Now to answer, “What is Testing?” we can go by the famous definition of Myers, which says, “Testing is the process of executing a program with the intent of finding errors”
Testbytes is a community of software testers who are passionate about quality and love to test. We develop an in-depth understanding of the applications under test and include software testing strategies that deliver quantifiable results.
In short, we help in building incredible software.
Software testing is the process of evaluation a software item to detect differences between given input and expected output. Also to assess the feature of A software item. Testing assesses the quality of the product. Software testing is a process that should be done during the development process. In other words software testing is a verification and validation process.
Software testing can also provide an objective, independent view of the software to allow the business to appreciate and understand the risks of software implementation. Test techniques include, but are not limited to the process of executing a program or application with the intent of finding software bugs (errors or other defects).
Software testing can be stated as the process of validating and verifying that a computer program/application/product:
• meets the requirements that guided its design and development,
• works as expected,
• can be implemented with the same characteristics,
• and satisfies the needs of stakeholders.
Software Development Process Cycle:-
PLAN (P): Device a plan. Define your objective and determine the strategy and supporting methods required to achieve that objective.
DO (D): Execute the plan. Create the conditions and perform the necessary training to execute the plan.
CHECK (C): Check the results. Check to determine whether work is progressing according to the plan and whether the results are obtained.
ACTION (A): Take the necessary and appropriate action if checkup reveals that the work is not being performed according to plan or not as anticipated.
Unit testing is one of the software testing types which includes the initial testing phase where the smallest components or the modules of a software are tested individually.
2. 2
Developer-Level Testing
developers are responsible for validating tests before committing code
Regression Tes,ng
04 Smoke Tests
Integra,on Tests
Unit Tests
03
02
01
Regression
A test that was wri;en when a
bug was fixed. It ensure that
this specific bug will not occur
again. The full name is "non-‐
regression test". It can also be
a test made prior to changing
an applica,on to make sure
the applica,on provides the
same outcome.
Smoke
A simple integra,on test where
we just check that when the
system under test is invoked it
returns normally and does not
blow up. It is an analogy with
electronics, where the first test
occurs when powering up a
circuit: if it smokes, it's bad.
Integra,on
Test the correct inter-‐opera,on
of mul,ple subsystems. There
is whole spectrum here, from
tes,ng integra,on between
two classes, to tes,ng full
integra,on with the live
database and the produc,on
environment.
Unit
Specify and test one point of
contact of a single method of a
class. This should have a very
narrow and well defined scope.
Complex dependencies and
interac,ons to the outside
world are stubbed or mocked.
3. 3
Acceptance Test
Test that a feature or use case
is correctly implemented. It is
similar to an integra,on test,
but with a focus on the use
case to provide rather than on
the components involved.
System Test
Test that tests a system as a
black box. Dependencies on
other systems are oPen
mocked or stubbed during the
test (otherwise it would be
more of an integra,on test).
Pre-‐Flight Check
Tests that are repeated in a
produc,on-‐like environment,
to alleviate the 'builds on my
machine' syndrome. OPen this
is realized by doing an
acceptance or smoke test in a
produc,on-‐like environment
System-Level Testing
system tests are run after code has been merged and deployed to integration environments
4. 4
Pre-‐Flight Check
Smoke Tests
Unit Tests
Near-term mobile platform testing suffers from the
resource-constrained nature of the mobile engineering
department. Due to this restriction, our process for
mobile testing is compressed.
Unit Tests are written for functionality that would be
difficult to manually test.
Smoke Tests are written for major functionality, and
represent a broad spectrum of basic testing.
Acceptance Tests are now performed manually on the
mobile side of the house.
Pre-Flight Check is also a manual step in Q1, in order to
meet deadlines. The goal is to make this step automatic
by Q3 2015.
Mobile Platform Testing
Acceptance Test
Mobile Platform Testing
mobile testing processes are resource-constrained in Q1 2015
5. 5
Test-‐driven development (TDD) is a soPware development process that relies on the repe,,on of a
very short development cycle: first the developer writes an (ini,ally failing) automated test case
that defines a desired improvement or new func,on, then produces the minimum amount of code
to pass that test, and finally refactors the new code to acceptable standards.
TASK ASSIGNED BUILD TESTS WRITE CODE TEST
REVIEW
DEPLOY
COMMIT
Test-Driven Workflow Overview
JIRA workflow for test-driven development
6. 6
Test-Driven Development Integration Tools
Technologies exist for facilita,ng test-‐driven development and managing workflows associated
with implemen,ng this process. These tools are instrumental in helping developers see TDD as a
tool rather than a burden.
Maven UnitTest Jenkins JIRA Selenium
Technology Integration
tools and technologies used in test-driven development