Top X Excuses Programmers Gives To Avoid Unit Of Measurement Testing
Though everyone loves unit of measurement tests in addition to everyone grip alongside benefits they pick out in, when the fourth dimension comes to write them, yous volition come across a lot of excuses, fifty-fifty from precisely about of the to a greater extent than experienced in addition to senior developers. At the pump of the work of non writing unit of measurement tests or plenty unit of measurement tests they are ii things, get-go is fourth dimension pressure level i.e. yous don't lead hold plenty fourth dimension to consummate coding forget near writing unit of measurement tests. This work comes due to erroneous estimation i.e. exclusively estimating fourth dimension for coding in addition to non including unit of measurement testing equally component of development. This is also our get-go excuse, thence we'll come across it inwards a curt while. The 2nd argue is laziness in addition to ignorance i.e. yous don't know to write unit of measurement tests but don't position plenty endeavour to larn the tips in addition to tricks. In this article, I lead hold shared precisely about of the most mutual excuses given past times programmers for non writing unit of measurement tests.
1) I don’t lead hold fourth dimension to unit of measurement test.
Really? But yous lead hold to fourth dimension to ready your mistakes later? The uncomplicated fact is that nobody, non fifty-fifty you, tin write bug-free code. Unit tests greatly speed upward the fourth dimension it takes to position a põrnikas because they narrow the suspect code downward to a real specific unit. Other types of testing, such equally Quality Assurance or User Acceptance Testing, position problems at a much higher level, forcing the developer to pass extra fourth dimension plodding through the diverse units looking for the root cause.
Unit tests tin also serve equally verification that the põrnikas is corrected without having to boot the bucket through the hassle of creating a novel application create in addition to deploying it for farther testing. Simply put, unit of measurement tests speed upward overall development. It mightiness pick out slightly longer to create each novel feature, but the evolution fourth dimension for the entire application, from inception to delivery, is considerable shorter.
2) Programmers are paid to prepare code, non to write a unit of measurement testify or comments.
You must sympathise that unit of measurement tests are code. They are equally integral to the application equally whatsoever other slice of code yous are writing in addition to should live on included inwards the master copy approximate in addition to declaration of work. It mightiness also aid to cite to the customer that unit of measurement tests lower both evolution toll (see the previous excuse) equally good equally maintenance cost. If yous are non writing unit tests, thence yous are doing your customer an injustice past times forcing them to incur extra expense.
3) I am supporting a legacy application without unit of measurement tests.
That all the same doesn’t preclude yous from writing your own. Granted, yous are non going to live on able to boot the bucket inwards in addition to write tests to pick out the entire code base of operations upward to an acceptable marking of coverage. You most probable don’t lead hold the fourth dimension or resources to produce that. But equally back upward issues are raised, write the unit of measurement tests for whatsoever code that yous modify.
When I am working on a back upward task, ane of the real get-go things I produce is write a unit of measurement testify to recreate the bug. When the unit of measurement testify starts passing, I know that I lead hold fixed the problem. Now, non exclusively lead hold I resolved a bug, but I lead hold added precisely about unit of measurement testify coverage to the code base. Over time, this coverage volition boot the bucket to a greater extent than in addition to to a greater extent than robust, in addition to actually, cut back futurity maintenance costs past times preventing the introduction of regression bugs. suck upward in addition to ready it
4) QA in addition to User Acceptance Testing is far to a greater extent than effective inwards finding bugs.
No arguments there. But Unit Testing is far to a greater extent than effective at preventing bugs. Just because my smoke alert is improve at detecting potential fires doesn’t hateful that it is security to exit the stove on all the time.
Both QA in addition to UAT are smoke alarms - they alert yous to potential existing trouble. Unit testing is turning off the stove when yous are done - it helps yous preclude trouble. Unit testing, QA, in addition to UAT are all of import parts of the testing process, in addition to they each play real dissimilar roles. Trying to supersede ane alongside precisely about other doesn’t work. I wouldn’t release a projection that was skillful unit of measurement tested without QA, in addition to I wouldn’t release a projection that was thoroughly QA’ed without unit of measurement testing.
5) I don’t know how to unit of measurement test, or I don’t know how to write skillful unit of measurement tests.
Well, this is in all likelihood the most valid excuse that is out there. The deplorable truth is that a corking many numbers of developers in addition to engineers produce non know how to unit of measurement test. I didn’t when I started. And zippo discourages a developer to a greater extent than than struggling to write bad unit of measurement tests. Luckily at that topographic point are resources out there.
There are thence many books, webinars, conference presentations, blogs, etc on writing skillful unit of measurement tests that the inability to write them precisely isn’t going to cutting it equally an excuse anymore. When individual offers me this excuse, I don’t hold back at it equally a roadblock, but rather equally a teachable moment.
It unremarkably exclusively takes a fourth dimension or ii of seeing how good written unit of measurement tests tin aid ane prepare code to plough them from the nighttime side. If yous are serious near learning tips in addition to tricks of writing skillful unit of measurement tests thence read Test Driven. It volition learn yous how to unit of measurement tests in addition to how to improve them slowly.
6) QA volition produce testing
It’s non my task to testify code – I don’t know at what phase a software developer decides that he tin precisely throw code over the wall. If your task championship was uncomplicated Coder than peradventure there’s an excuse. But equally your task is to prepare working software, yous demand to live on able to say that your code is functional.
7) I write GUI code
Some programmers give excuses that they write GUI code which is hard to testify in addition to automate testing is fifty-fifty to a greater extent than difficult. Well, that's non truthful at that topographic point are e'er precisely about tools to testify GUI e.g. if yous are writing JSP or HTML using JavaScript, yous tin e'er testify using Selenium in addition to other similar tools. It precisely a thing of finding right tools.
8) Unit testing is slower in addition to painful
It's truthful that if yous lead hold tons of unit of measurement tests inwards your projection in addition to if they execute equally component of create thence it volition pick out precisely about fourth dimension but alongside the advent of Jenkins in addition to similar continuous integration tools, yous don't nee to worry near that. Once yous brand a checking, Jenkins tin start edifice automatically in addition to alert yous if whatsoever of your existing unit of measurement testify failed without yous doing anything. I propose yous reading the Continuous Delivery past times Martin Fowler to larn to a greater extent than near Jenkins in addition to other tools.
9) Unit testify are hard to maintain
This ane is for sure a genuine signal but that non skillful plenty to deter yous from non writing unit of measurement test. Many developers who fifty-fifty write unit of measurement tests neglect to hold them in addition to alongside to a greater extent than alteration inwards code either those tests are non relevant or fail, but in ane lawsuit to a greater extent than alongside the automatic create in addition to testify tools similar Jenkins, yous volition directly know which tests demand alter equally component of the recent alter inwards code.
10) Unit testing is boring
It is deadening exclusively if yous don't know how to write a unit of measurement testify in addition to how to testify your code, but in ane lawsuit yous know that it is the most exciting thing for a programmer. You would dearest to write automated tests to testify your code, yous volition loathe the traditional main() method agency of testing Java code because of the flexibility in addition to powerfulness provided past times unit of measurement tests. You tin utilization fifty-fifty stubs in addition to mocks to testify something which is non yet available.
These are precisely about of the most pop excuses for non doing unit of measurement tests, I am sure yous lead hold also used ane of these excuses inwards the past. If not, thence either yous are a professional, disciplined developer or precisely lying. Btw, unit of measurement testing is also ane of the things which divide an average developer alongside the superstar developer. The afterwards ane e'er finds innovative ways to testify their code automatically in addition to to a greater extent than consistently.
Further Learning
Unit Testing In Java With JUnit
JUnit in addition to Mockito Crash Course
Learn Unit Testing alongside Junit & Mockito inwards thirty Steps
1) I don’t lead hold fourth dimension to unit of measurement test.
Really? But yous lead hold to fourth dimension to ready your mistakes later? The uncomplicated fact is that nobody, non fifty-fifty you, tin write bug-free code. Unit tests greatly speed upward the fourth dimension it takes to position a põrnikas because they narrow the suspect code downward to a real specific unit. Other types of testing, such equally Quality Assurance or User Acceptance Testing, position problems at a much higher level, forcing the developer to pass extra fourth dimension plodding through the diverse units looking for the root cause.
Unit tests tin also serve equally verification that the põrnikas is corrected without having to boot the bucket through the hassle of creating a novel application create in addition to deploying it for farther testing. Simply put, unit of measurement tests speed upward overall development. It mightiness pick out slightly longer to create each novel feature, but the evolution fourth dimension for the entire application, from inception to delivery, is considerable shorter.
2) Programmers are paid to prepare code, non to write a unit of measurement testify or comments.
You must sympathise that unit of measurement tests are code. They are equally integral to the application equally whatsoever other slice of code yous are writing in addition to should live on included inwards the master copy approximate in addition to declaration of work. It mightiness also aid to cite to the customer that unit of measurement tests lower both evolution toll (see the previous excuse) equally good equally maintenance cost. If yous are non writing unit tests, thence yous are doing your customer an injustice past times forcing them to incur extra expense.
3) I am supporting a legacy application without unit of measurement tests.
That all the same doesn’t preclude yous from writing your own. Granted, yous are non going to live on able to boot the bucket inwards in addition to write tests to pick out the entire code base of operations upward to an acceptable marking of coverage. You most probable don’t lead hold the fourth dimension or resources to produce that. But equally back upward issues are raised, write the unit of measurement tests for whatsoever code that yous modify.
When I am working on a back upward task, ane of the real get-go things I produce is write a unit of measurement testify to recreate the bug. When the unit of measurement testify starts passing, I know that I lead hold fixed the problem. Now, non exclusively lead hold I resolved a bug, but I lead hold added precisely about unit of measurement testify coverage to the code base. Over time, this coverage volition boot the bucket to a greater extent than in addition to to a greater extent than robust, in addition to actually, cut back futurity maintenance costs past times preventing the introduction of regression bugs. suck upward in addition to ready it
4) QA in addition to User Acceptance Testing is far to a greater extent than effective inwards finding bugs.
No arguments there. But Unit Testing is far to a greater extent than effective at preventing bugs. Just because my smoke alert is improve at detecting potential fires doesn’t hateful that it is security to exit the stove on all the time.
Both QA in addition to UAT are smoke alarms - they alert yous to potential existing trouble. Unit testing is turning off the stove when yous are done - it helps yous preclude trouble. Unit testing, QA, in addition to UAT are all of import parts of the testing process, in addition to they each play real dissimilar roles. Trying to supersede ane alongside precisely about other doesn’t work. I wouldn’t release a projection that was skillful unit of measurement tested without QA, in addition to I wouldn’t release a projection that was thoroughly QA’ed without unit of measurement testing.
5) I don’t know how to unit of measurement test, or I don’t know how to write skillful unit of measurement tests.
Well, this is in all likelihood the most valid excuse that is out there. The deplorable truth is that a corking many numbers of developers in addition to engineers produce non know how to unit of measurement test. I didn’t when I started. And zippo discourages a developer to a greater extent than than struggling to write bad unit of measurement tests. Luckily at that topographic point are resources out there.
There are thence many books, webinars, conference presentations, blogs, etc on writing skillful unit of measurement tests that the inability to write them precisely isn’t going to cutting it equally an excuse anymore. When individual offers me this excuse, I don’t hold back at it equally a roadblock, but rather equally a teachable moment.
It unremarkably exclusively takes a fourth dimension or ii of seeing how good written unit of measurement tests tin aid ane prepare code to plough them from the nighttime side. If yous are serious near learning tips in addition to tricks of writing skillful unit of measurement tests thence read Test Driven. It volition learn yous how to unit of measurement tests in addition to how to improve them slowly.
6) QA volition produce testing
It’s non my task to testify code – I don’t know at what phase a software developer decides that he tin precisely throw code over the wall. If your task championship was uncomplicated Coder than peradventure there’s an excuse. But equally your task is to prepare working software, yous demand to live on able to say that your code is functional.
7) I write GUI code
Some programmers give excuses that they write GUI code which is hard to testify in addition to automate testing is fifty-fifty to a greater extent than difficult. Well, that's non truthful at that topographic point are e'er precisely about tools to testify GUI e.g. if yous are writing JSP or HTML using JavaScript, yous tin e'er testify using Selenium in addition to other similar tools. It precisely a thing of finding right tools.
8) Unit testing is slower in addition to painful
It's truthful that if yous lead hold tons of unit of measurement tests inwards your projection in addition to if they execute equally component of create thence it volition pick out precisely about fourth dimension but alongside the advent of Jenkins in addition to similar continuous integration tools, yous don't nee to worry near that. Once yous brand a checking, Jenkins tin start edifice automatically in addition to alert yous if whatsoever of your existing unit of measurement testify failed without yous doing anything. I propose yous reading the Continuous Delivery past times Martin Fowler to larn to a greater extent than near Jenkins in addition to other tools.
9) Unit testify are hard to maintain
This ane is for sure a genuine signal but that non skillful plenty to deter yous from non writing unit of measurement test. Many developers who fifty-fifty write unit of measurement tests neglect to hold them in addition to alongside to a greater extent than alteration inwards code either those tests are non relevant or fail, but in ane lawsuit to a greater extent than alongside the automatic create in addition to testify tools similar Jenkins, yous volition directly know which tests demand alter equally component of the recent alter inwards code.
10) Unit testing is boring
It is deadening exclusively if yous don't know how to write a unit of measurement testify in addition to how to testify your code, but in ane lawsuit yous know that it is the most exciting thing for a programmer. You would dearest to write automated tests to testify your code, yous volition loathe the traditional main() method agency of testing Java code because of the flexibility in addition to powerfulness provided past times unit of measurement tests. You tin utilization fifty-fifty stubs in addition to mocks to testify something which is non yet available.
These are precisely about of the most pop excuses for non doing unit of measurement tests, I am sure yous lead hold also used ane of these excuses inwards the past. If not, thence either yous are a professional, disciplined developer or precisely lying. Btw, unit of measurement testing is also ane of the things which divide an average developer alongside the superstar developer. The afterwards ane e'er finds innovative ways to testify their code automatically in addition to to a greater extent than consistently.
Further Learning
Unit Testing In Java With JUnit
JUnit in addition to Mockito Crash Course
Learn Unit Testing alongside Junit & Mockito inwards thirty Steps
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