- Nov 2024
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jmedicalcasereports.biomedcentral.com jmedicalcasereports.biomedcentral.com
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Disease: N/A, variant present in F12 gene
Patient: 36 yo, Female, Saudi descent
Variant:F12 NC_000005.9:g.176,830,269 G>A; p.Gly506Asp Homozygous mutation, exon 12 Located in peptidase S1 domain of F12
Family:
Consanguineous family history (parents first-degree cousins)
No family history of bleeding or thrombosis
Phenotypes:
Significantly high activated partial thromboplastin time
No history of bleeding during deliveries or tooth extractions
No history of thrombosis or skin manifestations
On no medications, physical examination unremarkable
Factor assays and VWF tests within normal ranges except Factor XII (Severely deficient)
variant is proposed to be deleterious but there is insufficient evidence to support this claim.
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- Oct 2024
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burtlo.github.io burtlo.github.io
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There are two things that I enjoy: a test framework written in my own Domain Specific Language (DSL) that is easily understood by all those on a project and the ability for all participants to easily read, search, and view the tests.
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- Sep 2024
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onlinelibrary.wiley.com onlinelibrary.wiley.com
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Tests performed: Haemostatic tests ristocetin-induced platelet aggregation plasma VWF antigen VWF risocetin cofactor VWF FVIII-binding capacity VWF multimers and FVIII activity DDAVP test Concentration timecourses
sequencing from genomic DNA performed and reported in 2011
cDNA analysis
Real-time-PCR analysis
long PCR
Ellman assay (quantifying sulfhydryls)
Dynamic light scattering measurements
circular dichroism
ADAMTS13 proteolysis assay
ADAMTS13-VWF binding assay
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stackoverflow.com stackoverflow.com
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Disable all observers in your test suite by default. They should not be complicating your model tests because they should have separate concerns anyway. You don't need to unit test that observers actually fire, because ActiveRecord's test suite does that, and your integration tests will cover it.
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www.youtube.com www.youtube.com
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(~19:20)
According to Huberman, there is a positive causal relationship between caffeine and reduced reaction time, increasing both speed and accuracy of recall. Thus useful to take in a certain amount of caffeine 30-60 minutes before an important exam or test.
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- Aug 2024
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github.com github.com
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This is the most simulative version of a controller. It will try and mimic real user behaviour. It's the recommended version to use when the goal of the load-test is finding out how many concurrently active users the target instance supports.
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- Jul 2024
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www.youtube.com www.youtube.com
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1958 Olympia SM3 Final Type Test -Part6: COMPLETE Olympia SM3 service and set up guide. by [[The HotRod Typewriter Co.]]
Gerren prefers cotton ribbons in pica machines because the larger typeface can better handle the ink.
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www.youtube.com www.youtube.com
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( ~ 3:25)
Learning how to learn has latent learning for most people. There is no immediate feedback and therefore you do not know how good your learning techniques are until you get to the point of exam.
One way to mitigate this is by having your own test... Past papers, hard recall techniques like Whole-Part-Whole, etc.
I need to find a way to effectively measure learning efficiency in terms of several components (how well is encoding, how well is recall, etc.)
Kolb's as well.
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- Jun 2024
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jaredhenderson.substack.com jaredhenderson.substack.com
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Testing culture also discourages deep reading, critics say, because it emphasizes close reading of excerpts, for example, to study a particular literary technique, rather than reading entire works.
Indeed. But testing in general, as it is done currently, in modern formal education, discourages deep learning as opposed to shallow learning.
Why? Because tests with marks implore students to start learning at max 3 days before the test, thus getting knowledge into short-term memory and not long term memory. Rendering the process of learning virtually useless even though they "pass" the curriculum.
I know this because I was such a student, and saw it all around me with virtually every other student I met, and I was in HAVO, a level not considered "low".
It does not help that teachers, or the system, expect students to know how to learn (efficiently) without it ever being taught to them.
My message to the system: start teaching students how to learn the moment they enter high school
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- May 2024
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As of right now the full build takes over an hour to run, and this makes cycling for PRs and quick iterative development very difficult.
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- Dec 2023
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www.typewriters.ch www.typewriters.ch
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Full alphabet sentences, also called pangrams, were used to check the function of all letters on the typewriter keyboard. They were also used in typing lessons.
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- Nov 2023
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docs.cypress.io docs.cypress.io
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// NOTE: The element exists on the original form but is hidden and gets rerendered, which leads to intermittent detached DOM issues cy.contains('Next').click().wait(4000)
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github.com github.com
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// instead of visiting each page and waiting for all // the associated resources to load, we can instead // just issue a simple HTTP request and make an // assertion about the response body cy.request('/admin') .its('body') .should('include', '<h1>Admin</h1>')
instead of cy.visit
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- Oct 2023
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www.nytimes.com www.nytimes.com
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Morgan, Robert R. “Opinion | Hard-Pressed Teachers Don’t Have a Choice on Multiple Choice.” The New York Times, October 22, 1988, sec. Opinion. https://www.nytimes.com/1988/10/22/opinion/l-hard-pressed-teachers-don-t-have-a-choice-on-multiple-choice-563988.html.
https://web.archive.org/web/20150525091818/https://www.nytimes.com/1988/10/22/opinion/l-hard-pressed-teachers-don-t-have-a-choice-on-multiple-choice-563988.html. Internet Archive.
Example of a teacher pressed into multiple-choice tests for evaluation for time constraints on grading.
He falls prey to the teacher's guilt of feeling they need to grade every single essay written. This may be possible at the higher paid levels of university teaching with incredibly low student to teacher ratios, but not at the mass production level of public education.
While we'd like to have education match the mass production assembly lines of the industrial revolution, this is sadly nowhere near the case with current technology. Why fall prey to the logical trap?
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www.nytimes.com www.nytimes.com
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Barzun, Jacques. “Opinion | Multiple Choice Flunks Out.” The New York Times, October 11, 1988, sec. Opinion. https://www.nytimes.com/1988/10/11/opinion/multiple-choice-flunks-out.html.
Archived copy at https://web.archive.org/web/20231022192353/https://www.nytimes.com/1988/10/11/opinion/multiple-choice-flunks-out.html. Internet Archive.
Barzun takes standardized multiple-choice tests to task.
A version of this article appears in Barzun's book: Barzun, Jacques. Begin Here: The Forgotten Conditions of Teaching and Learning. University of Chicago Press, 1991. http://archive.org/details/begin-here-the-forgotten-conditions-of-teaching-and-learning.
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He pointed out that these questions penalize the more imaginative and favor those who are content to collect facts. Therefore, multiple-choice test statistics, in all their uses, are misleading.
He = Banesh Hoffman
This is tangentially similar to Malcolm Gladwell's claim that standardized testing for law school privileges certain types of thinkers over others, something which creates thinkers who are good at quick things with respect to time pressures rather than slower and more deliberate thinkers who are needed at higher level functions like the Supreme Court.
See: The Tortoise and the Hare, S4 E2 of Revisionist History https://www.pushkin.fm/podcasts/revisionist-history/the-tortoise-and-the-hare
testing imagination versus fact memorization/simple recall compared with thinking quickly under pressure or slowly with time and increased ability to reason
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Multiple-choice questions test nothing but passive-recognition knowledge, not active usable knowledge.
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But since their adoption, the results of the huge effort and expense of public schooling have been less and less satisfactory.
their = multiple-choice tests
Multiple-choice tests usually test for basic facts or simple answers, and aren't well designed for testing complex chains of reasoning, particularly at the lower levels.
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arguments in favor of these ''objective'' tests: They are easy to grade; uniformity and unmistakable answers imply fairness; one can compare performance over time and gauge the results of programs; the validity of questions is statistically tested and the performance of students is followed up through later years.
Some of the benefits of multiple-choice tests.
Barzun misses the fact that these are not just easy for teachers to grade, but they're easier for mass grading by machines in a century dominated by standardization of knowledge in a world dominated by standardized mechanization for a mass-production oriented society.
Cross reference educational reforms of Eliot following the rise of Taylorism.
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It is harmful to learning and teaching.
Barzun calls out multiple-choice tests as harmful to both learning and teaching.
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But to the best of my knowledge the central feature of modern schooling has never been taken up: the multiple-choice test.
Barzun places the multiple-choice test as the central feature of modern schooling. This has a bit of a hyperbolic feel, but it's certainly a modern invention which aims to evaluate a low level of learning while still making it simple for teachers to quickly grade student's work.
Because of it's incredibly low-level function, these multiple-choice tests should be used only for the lowest level functionality as well.
Tags
- timed testing
- standardized testing
- Charles W. Eliot
- ungrading
- educational reform
- Frederick Winslow Taylor
- tortoise and the hare
- mass production
- read
- law school
- EdTech
- Taylorisim
- Industrial Revolution
- References
- Banesh Hoffman
- multiple-choice tests
- Malcolm Gladwell
- recognition memory
- pattern recognition
Annotators
URL
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- Sep 2023
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thescimus.com thescimus.com
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We will try to add two tests for response code in order to know that our request was successful. Another test we will add for response time < 2 sec in order to understand how fast request was processed by server. If it will be executed slower then for 2 seconds, our test will fail. In this case I use 2 seconds just for example it might be greater or lower number, but 7 seconds is usually a maximum time for request execution. So in order to add tests, go to “Tests” in request section of application and add this few lines : tests["Status code is 200"] = responseCode.code === 200; tests["Response time is less than 200ms"] = responseTime < 2000; When this is done hit on Send button again and execute your first test.
Good case -- importance of adding tests to validate response codes and times, ensuring optimal server performance and response.
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- Aug 2023
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www.ruby-forum.com www.ruby-forum.com
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I ran into the same problem and never really found a good answer via the test objects. The only solution I saw was to actually update the session via a controller. I defined a new action in one of my controllers from within test_helper (so the action does not exist when actually runnning the application). I also had to create an entry in routes. Maybe there’s a better way to update routes while testing. So from my integration test I can do the following and verfiy: assert(session[:fake].nil?, “starts empty”) v = ‘Yuck’ get ‘/user_session’, :fake => v assert_equal(v, session[:fake], “value was set”)
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- May 2023
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www.defenseurdesdroits.fr www.defenseurdesdroits.fr
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Modifier et clarifier la rédaction de l’article 388 du code civil en interdisant le recours auxexamens d’âge osseux.
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- Mar 2023
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www.frontiersin.org www.frontiersin.org
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Detailed descriptions, assumptions, limitations and test cases of many popular statistical methods for ecological research can be found in the GUSTAME server (Buttigieg and Ramette, 2014), and in the review by Paliy and Shankar (2016).
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kevinjmurphy.com kevinjmurphy.com
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Our test raises an ActiveRecord::RecordNotFound exception. We know that Rails has special handling to return a 404 status code in this case. However, the request spec still raises the exception.
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- Oct 2022
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docs.openvalidation.io docs.openvalidation.io
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Rules formulated with openVALIDATION are thus at the same time a formal, machine-processable specification, but also a documentation that is easy for people to understand.
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- Aug 2022
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takingnotenow.blogspot.com takingnotenow.blogspot.com
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The narrator considers this as vandalism and finds it hard to believe how anyone "educated enough to have access to a university library should do this to a book." To him "the treatment of books is a test of civilized behaviour."
Highlighted portion is a quote from Kuehn sub-quoting David Lodge, Deaf Sentence (New York: Viking 2008)
Ownership is certainly a factor here, but given how inexpensive many books are now, if you own it, why not mark it up? See also: Mortimer J. Adler's position on this.
Marking up library books is a barbarism; not marking up your own books is a worse sin.
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twitter.com twitter.com
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ReconfigBehSci. (2021, December 20). RT @thehowie: South Africa Deaths (7 day average) are near double levels of a few weeks ago. They will go up further. They are only 7.5%… [Tweet]. @SciBeh. https://twitter.com/SciBeh/status/1472991477672419334
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- Jul 2022
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Oh I see whats happening, we actually have specs for this but they're not correct
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github.com github.com
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Interestingly, Rails doesn't see this in their test suite because they set this value during setup:
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- May 2022
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policyreview.info policyreview.info
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The term independent is considered more appropriate than self, as in self-hosted, considering the latter can give the wrong impression that it only refers to situations where the owners of a website decided to physically host it on hardware that is physically controlled and managed by them.
This idea of independently hosted versus self-hosted comes up frequently in IndieWeb chat. The IndieWeb doesn't generally participate in the "purity test" of requiring full self-hosting as a result.
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- Apr 2022
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twitter.com twitter.com
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ReconfigBehSci on Twitter: ‘RT @DrBrookeRogers: Lockdown: Students told not to rush home from uni https://t.co/ss5lYQrMOY’ / Twitter. (n.d.). Retrieved 24 February 2021, from https://twitter.com/SciBeh/status/1323574989061312518
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twitter.com twitter.com
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Sebastian Rushworth M.D. (2021, January 25). This graph shows the share of the Swedish population testing positive to antibodies against covid week on week. The results are pretty startling. Https://t.co/rye4WImrvl [Tweet]. @sebrushworth. https://twitter.com/sebrushworth/status/1353775606274654208
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- Mar 2022
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github.com github.com
- Jan 2022
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twitter.com twitter.com
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Dr. Thrasher wrote a book! (2022, January 8). My cousin wanted to get tested. She waited in an auto testing line for 6.5 hours, and stayed in it bc she was traveling to bury her Daddy. How many people give up in such long lines? How many cases upwards of a million are we losing bc Biden et all failed on home tests? Https://t.co/Q7WVy5qD4v [Tweet]. @thrasherxy. https://twitter.com/thrasherxy/status/1479826389142491146
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www.unison.org.uk www.unison.org.uk
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Lack of lateral flow tests in schools putting staff and children at risk, says UNISON | News, Press release | News. (2022, January 20). UNISON National. https://www.unison.org.uk/news/press-release/2022/01/lack-of-lateral-flow-tests-in-schools-putting-staff-and-children-at-risk-says-unison/
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www.bbc.com www.bbc.com
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Covid-19: Cutting self-isolation to five days would be helpful, Nadhim Zahawi says. (2022, January 9). BBC News. https://www.bbc.com/news/uk-59925702
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www.independent.co.uk www.independent.co.uk
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Baig, Abdul Mannan. ‘Counting the Neurological Cost of COVID-19’. Nature Reviews Neurology 18, no. 1 (January 2022): 5–6. https://doi.org/10.1038/s41582-021-00593-7.
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- Nov 2021
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www.theatlantic.com www.theatlantic.com
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Nobody is perfect; nobody is pure; and once people set out to interpret ambiguous incidents in a particular way, it’s not hard to find new evidence.
Wouldn't it be better for us to focus our efforts and energies on people who are doing bigger mass scale harms on society?
Surely the ability to protect some of these small harms undergird ability to build up protection for much larger harms.
Why are we prosecuting these smaller harms rather than the larger (especially financial and) institutional harms?
It is easier to focus on the small and specific rather than broad and unspecific. (Is there a name for this as a cognitive bias? There should be, if not. Perhaps related to the base rate fallacy or base rate neglect (a form of extension neglect), which is "the tendency to ignore general information and focus on information only pertaining to the specific case, even when the general information is more important." (via Wikipedia)
Could the Jesuits' descent into the particular as a method help out here?
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www.varvet.com www.varvet.com
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But it is kind of verbose, and it’s also a lot slower, so I can understand why the model test might be preferred.
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I am firmly convinced that asserting on the state of the interface is in every way superior to asserting on the state of your model objects in a full-stack test.
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- Sep 2021
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www.npmjs.com www.npmjs.com
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The more your tests resemble the way your software is used, the more confidence they can give you.
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- Jun 2021
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www.sciencedaily.com www.sciencedaily.com
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COVID-19 reinfection rate less than 1 percent for those with severe illness, study finds: Two deaths were associated with reinfection, but most cases were mild—ScienceDaily. (n.d.). Retrieved June 24, 2021, from https://www.sciencedaily.com/releases/2021/06/210615132103.htm
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watermark.silverchair.com watermark.silverchair.com
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Qureshi, A. I., Baskett, W. I., Huang, W., Lobanova, I., Naqvi, S. H., & Shyu, C.-R. (2021). Re-infection with SARS-CoV-2 in Patients Undergoing Serial Laboratory Testing. Clinical Infectious Diseases, ciab345. https://doi.org/10.1093/cid/ciab345
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thoughtbot.com thoughtbot.com
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evilmartians.com evilmartians.com
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Thus, by adding system tests, we increase the maintenance costs for development and CI environments and introduce potential points of failures or instability: due to the complex setup, flakiness is the most common problem with end-to-end testing. And most of this flakiness comes from communication with a browser.
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For example, Database Cleaner for a long time was a must-have add-on: we couldn’t use transactions to automatically rollback the database state, because each thread used its own connection; we had to use TRUNCATE ... or DELETE FROM ... for each table instead, which is much slower. We solved this problem by using a shared connection in all threads (via the TestProf extension). Rails 5.1 was released with a similar functionality out-of-the-box.
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even acceptance tests (though the latter are ideologically different)
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www.mutuallyhuman.com www.mutuallyhuman.com
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This meant that we owned both sides of the product implementation. For unit testing on the frontend, we stayed with Angular’s suggestion of Jasmine. For unit testing on the backend, we went with rspec-rails. These worked well since unit tests don’t need to cross technology boundaries.
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www.mutuallyhuman.com www.mutuallyhuman.com
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I’m going to add the API Server as an actor to my first test sequence to give some granularity as to what I’m actually testing.
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For features like websocket interactions, a single full-stack smoke test is almost essential to confirm that things are going as planned, even if the individual parts of the interaction are also covered by unit tests.
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github.com github.com
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Why does test suite performance matter? First of all, testing is a part of a developer's feedback loop (see @searls talk) and, secondly, it is a part of a deployment cycle.
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docs.gitlab.com docs.gitlab.com
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How to test at the correct level?
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As many things in life, deciding what to test at each level of testing is a trade-off:
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Unit tests are usually cheap, and you should consider them like the basement of your house
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A system test is often better than an integration test that is stubbing a lot of internals.
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Only test the happy path, but make sure to add a test case for any regression that couldn’t have been caught at lower levels with better tests (for example, if a regression is found, regression tests should be added at the lowest level possible).
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GitLab is transitioning from controller specs to request specs.
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These kind of tests ensure that individual parts of the application work well together, without the overhead of the actual app environment (i.e. the browser). These tests should assert at the request/response level: status code, headers, body. They’re useful to test permissions, redirections, what view is rendered etc.
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These tests should be isolated as much as possible. For example, model methods that don’t do anything with the database shouldn’t need a DB record. Classes that don’t need database records should use stubs/doubles as much as possible.
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Black-box tests at the system level (aka end-to-end or QA tests)
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White-box tests at the system level (aka system or feature tests)
Tags
- testing: integration tests
- testing: what to test
- testing: levels of tests: higher level better than stubbing a lot of internals
- newer/better ways of doing things
- testing: speed of tests: avoid doing unnecessary work
- GitLab
- happy path
- testing: system-level
- testing: levels of tests
- testing: unit tests
- testing: levels of tests: how to test at the correct level?
- testing: types of tests
- testing: Rails: controller tests
- good advice
- testing: end-to-end
- regression testing
- testing: what is worth testing?
- falling out of favor
- testing: levels of tests: prefer lower-level tests when possible
- end-to-end testing
- guidelines
Annotators
URL
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en.wikipedia.org en.wikipedia.org
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docs.gitlab.com docs.gitlab.com
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A common cause of a large number of created factories is factory cascades, which result when factories create and recreate associations.
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Test speed GitLab has a massive test suite that, without parallelization, can take hours to run. It’s important that we make an effort to write tests that are accurate and effective as well as fast.
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:js is particularly important to avoid. This must only be used if the feature test requires JavaScript reactivity in the browser. Using a headless browser is much slower than parsing the HTML response from the app.
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Use Factory Doctor to find cases where database persistence is not needed in a given test.
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Parameterized tests
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This style of testing is used to exercise one piece of code with a comprehensive range of inputs. By specifying the test case once, alongside a table of inputs and the expected output for each, your tests can be made easier to read and more compact.
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docs.gitlab.com docs.gitlab.com
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As an example you might create 5 issues in between counts, which would cause the query count to increase by 5 if an N+1 problem exists.
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QueryRecorder is a tool for detecting the N+1 queries problem from tests.
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www.baeldung.com www.baeldung.com
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One such feature is parameterized tests. This feature enables us to execute a single test method multiple times with different parameters.
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docs.gitlab.com docs.gitlab.com
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targeting what the user actually sees
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The most important guideline to give is the following: Write clean unit tests if there is actual value in testing a complex piece of logic in isolation to prevent it from breaking in the future Otherwise, try to write your specs as close to the user’s flow as possible
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It’s better to test a component in the way the user interacts with it: checking the rendered template.
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- Apr 2021
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github.com github.com
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There is no request.env in functional tests because the functional tests are supposed to remain at the controller level.
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- Mar 2021
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www.ynet.co.il www.ynet.co.il
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בזמן שבאירופה ובאזורים נוספים בעולם ממשיכים להתמודד עם התפרצויות קשות של נגיף הקורונה והווריאנטים השונים שלו, ומטילים בשל כך הגבלות חדשות, באנגליה הורשו היום (ב') מיליוני תושבים לצאת מהבתים, במסגרת גל הקלות בסגר שהוטל שם בתחילת השנה. במסגרת גל ההקלות מורשים תושבי אנגליה לצאת בחופשיות מהבתים שלהם ולהתקהל במקומות פתוחים בקבוצות של עד שישה אנשים, משני בתי אב שונים. גם פעילויות ספורט במקומות פתוחים אפשריים כעת.
sdjk bkjsdgkbgjk
Tags
Annotators
URL
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tobeagile.com tobeagile.com
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Why separate out red tests from green tests? Because my green tests serve a fundamentally different purpose. They are there to act as a living specification, validating that the behaviors work as expected. Regardless of whether they are implemented in a unit testing framework or an acceptance testing framework, they are in essence acceptance tests because they’re based upon validating behaviors or acceptance criteria rather than implementation details.
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stackoverflow.com stackoverflow.com
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not all answers pass this tests
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trailblazer.to trailblazer.to
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There’s no need to test controllers, models, service objects, etc. in isolation
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Run the complete unit with a certain input set, and test the side-effects. This differs to the Rails Way™ testing style, where smaller units of code, such as a specific validation or a callback, are tested in complete isolation. While that might look tempting and clean, it will create a test environment that is not identical to what happens in production.
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Integration tests for controllers: These Smoke tests only test the wiring between controller, operation and presentation layer.
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Unit tests for operations: They test all edge cases in a nice, fast unit test environment without any HTTP involved.
Tags
- testing: smoke tests
- isolation (programming)
- testing: integration tests
- unnecessary
- testing: avoid testing implementation details
- testing: philosohy of testing
- the Trailblazer way
- testing: tests should resemble the way your software is used
- rails: the Rails way
- testing: avoid unnecessarily testing things in too much isolation, in a different way than the code is actually used (should match production)
- testing: unit tests
- testing: fast test suite
Annotators
URL
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- Feb 2021
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Dickie, Mure, and John Burn-Murdoch. ‘Scotland Reaps Dividend of Covid Response That Diverged from England’, 25 February 2021. https://www.ft.com/content/e1eddd2f-cb0b-4c7a-8872-2783810fae8d.
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www.bbc.co.uk www.bbc.co.uk
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Lockdown: Students told not to rush home from uni. (2020, November 2). BBC News. https://www.bbc.com/news/education-54784539
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sebastianrushworth.com sebastianrushworth.com
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Here’s a graph they don’t want you to see. (2021, January 25). Sebastian Rushworth M.D. https://sebastianrushworth.com/2021/01/25/heres-a-graph-they-dont-want-you-to-see/
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- Oct 2020
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covid-19.iza.org covid-19.iza.org
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IZA – Institute of Labor Economics. ‘COVID-19 and the Labor Market’. Accessed 6 October 2020. https://covid-19.iza.org/publications/dp13683/.
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- Sep 2020
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twitter.com twitter.com
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Stephanie deGiorgio on Twitter. (n.d.). Twitter. Retrieved September 10, 2020, from https://twitter.com/DrSdeG/status/1303946431523418112
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- Aug 2020
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edtechbooks.org edtechbooks.org
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Test Your Readiness: Data Practices
This seems to be the same overall Readiness test available in all Chapters. Consider segmenting the Readiness test into portions that align with the particular chapter that the learner is in.
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- Jul 2020
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evilmartians.com evilmartians.com
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We mostly write integration tests, by the way—and 20% is not that bad (but can be even better).
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www.thelancet.com www.thelancet.com
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Peeling, Rosanna W., Catherine J. Wedderburn, Patricia J. Garcia, Debrah Boeras, Noah Fongwen, John Nkengasong, Amadou Sall, Amilcar Tanuri, and David L. Heymann. ‘Serology Testing in the COVID-19 Pandemic Response’. The Lancet Infectious Diseases 0, no. 0 (17 July 2020). https://doi.org/10.1016/S1473-3099(20)30517-X.
Tags
- global cooperation
- commercially available
- lang:en
- public health
- is:report
- situational analysis
- symptomatic patients
- serology
- international solidarity
- control programmes
- COVID-19
- immune response
- rapid serology tests
- surveillance
- rapid immunodiagnostic tests
- viral infectivity
- serology testing
- molecular diagnostics
- host response
- community
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docs.gitlab.com docs.gitlab.com
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What’s a flaky test? It’s a test that sometimes fails, but if you retry it enough times, it passes, eventually.
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Quarantined tests are run on the CI in dedicated jobs that are allowed to fail
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- Jun 2020
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edgeguides.rubyonrails.org edgeguides.rubyonrails.org
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It is not customary in Rails to run the full test suite before pushing changes. The railties test suite in particular takes a long time, and takes an especially long time if the source code is mounted in /vagrant as happens in the recommended workflow with the rails-dev-box.As a compromise, test what your code obviously affects, and if the change is not in railties, run the whole test suite of the affected component. If all tests are passing, that's enough to propose your contribution.
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- May 2020
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kellysutton.com kellysutton.com
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The test is being marked as skipped because it has randomly failed. How much confidence do we have in that test and feature in the first place.
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This policy allows the test suite to stay green while letting individual teams decide when they would like to put in the effort to write more deterministic tests. They may choose to do so right away, or delay until they work on the feature again.
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All tests that fail on the master branch will be considered flakes. These tests will be marked as skipped.
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- Apr 2020
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cucumber.io cucumber.io
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Then the programmer(s) will go over the scenarios, refining the steps for clarification and increased testability. The result is then reviewed by the domain expert to ensure the intent has not been compromised by the programmers’ reworking.
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cucumber.io cucumber.io
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Enable Frictionless Collaboration CucumberStudio empowers the whole team to read and refine executable specifications without needing technical tools. Business and technology teams can collaborate on acceptance criteria and bridge their gap.
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- Mar 2020
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www.the-brights.net www.the-brights.net
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. However, the data did not support a meresimilarity effect: Our results were robust to controlling for partic-ipants’ own moral judgments, such that participants who made adeontological judgment (the majority) strongly preferred a deon-tological agent, whereas participants who made a consequentialistjudgment (the minority) showed no preference between the two
But this is a lack of a result in the context of a critical underlying assumption. Yes, the results were 'robust', but could we really be statistically confident that this was not driving the outcome? How tight are the error bounds?
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For automated testing, include the parameter is_test=1 in your tests. That will tell Akismet not to change its behaviour based on those API calls – they will have no training effect. That means your tests will be somewhat repeatable, in the sense that one test won’t influence subsequent calls.
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- Jan 2020
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twitter.com twitter.com
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Yes; everything needed to run the tests are bundled inside the test suite or executable. There's no connections to foreign processes or systems. I.e, no talking to databases or reading files from disk. If necessary, these connection points are faked / mocked.
Tests running in isolation don't depends on external systems to work.
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- Dec 2019
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In React, there are different aspects of UI Testing. We categorize them as follows along with their tooling:
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Storybook integrates with Jest Snapshot through an add-on called StoryShots. StoryShots adds automatic Jest Snapshot Testing to our codebase by using our existing Storybook stories as the input for Jest Snapshot Testing.
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- Nov 2019
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hypothes.is hypothes.is
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nd clickin
Checking it out
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kentcdodds.com kentcdodds.com
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If you're writing a tool for developers, it's a really common case that you want to write a test to ensure that a good error or warning message is logged to the console for the developers using your tool. Before snapshot testing I would always write a silly regex that got the basic gist of what the message should say, but with snapshot testing it's so much easier.
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These four things lead to a near total loss in the intended utility of integrated/functional tests: as the code changes make sure nothing is broken.
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(After all, it's not like the past snapshot was well understood or carefully expressed authorial intent.) As a result, if a snapshot test fails because some intended behavior disappeared, then there's little stated intention describing it and we'd much rather regenerate the file than spend a lot of time agonizing over how to get the same test green again.
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They are generated files, and developers tend to be undisciplined about scrutinizing generated files before committing them, if not at first then definitely over time. Most developers, upon seeing a snapshot test fail, will sooner just nuke the snapshot and record a fresh passing one instead of agonizing over what broke it.
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Good tests encode the developer's intention, they don't only lock in the test's behavior without editorialization of what's important and why. Snapshot tests lack (or at least, fail to encourage) expressing the author's intent as to what the code does (much less why)
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kentcdodds.com kentcdodds.com
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I very rarely use snapshot testing with react and I certainly wouldn't use it with shallow. That's a recipe for implementation details. The whole snapshot is nothing but implementation details (it's full of component and prop names that change all the time on refactors). It'll fail any time you touch the component and the git diff for the snapshot will look almost identical to the one for your changes to the component.This will make people careless about to the snapshot updates because they change all the time. So it's basically worthless (almost worse than no tests because it makes you think you're covered when you're not and you won't write proper tests because they're in place).
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I should also add that I'm in favor of relying more heavily on integration testing. When you do this, you need to unit test fewer of your simple components and wind up only having to unit test edge cases for components (which can mock all they want).
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kentcdodds.com kentcdodds.com
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"The more your tests resemble the way your software is used, the more confidence they can give you. "
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medium.com medium.com
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Unit test coverage grants confidence that code logic is correct(and serves as great developer documentation!)
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testing-library.com testing-library.com
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You want to write maintainable tests for your React components. As a part of this goal, you want your tests to avoid including implementation details of your components and rather focus on making your tests give you the confidence for which they are intended. As part of this, you want your testbase to be maintainable in the long run so refactors of your components (changes to implementation but not functionality) don't break your tests and slow you and your team down.
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We try to only expose methods and utilities that encourage you to write tests that closely resemble how your web pages are used.
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The more your tests resemble the way your software is used, the more confidence they can give you.
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Most of the damaging features have to do with encouraging testing implementation details. Primarily, these are shallow rendering, APIs which allow selecting rendered elements by component constructors, and APIs which allow you to get and interact with component instances (and their state/properties) (most of enzyme's wrapper APIs allow this).
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www.robinwieruch.de www.robinwieruch.de
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For instance, an integration test could verify that all necessary props are passed through from the tested component to a specific child component.
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testingjavascript.com testingjavascript.com
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socialdribbler.com socialdribbler.com
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Snapshot testing is great as it let us capture strings that represent our rendered components and the store it in a separate snapshot file to compare later in order to ensure that UI is not change. While it is ideal for React apps, we can use snapshots for comparing values that are serialized from other frameworks.
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Screenshot Test: Applications are not often screenshot tested. However, if the business requirement is there, screenshot tests can be used to diff two screenshots from the same application state in order to verify whether something (styling, layout, …) has changed. It’s similar to a snapshot test, whereas the snapshot test only diffs the DOM and the screenshot test diffs screenshots.
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Snapshot Test: Introduced by Facebook’s library Jest, Snapshot Tests should be the lightweight variation of testing (React) components. It should be possible to create a DOM snapshot of a component once a test for it runs for the first time and compare this snapshot to a future snapshot, when the test runs again, to make sure that nothing has changed. If something has changed, the developer has to either accept the new snapshot test (the developer is okay with the changes) or deny them and fix the component instead.
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- Oct 2019
- Aug 2019
- Mar 2019
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www.k-state.edu www.k-state.edu
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This 69 page PDF offers good advice on writing a variety of types of test questions. It is called "Is this a trick question?" Despite the length of the PDF, it is easy to browse if you are interested in writing a specific type of question. As may be suggested by the length, this resource is more comprehensive than others. Rating 5/5
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- Jan 2019
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inst-fs-iad-prod.inscloudgate.net inst-fs-iad-prod.inscloudgate.net
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Although we believe that this study establishes the presence of g in data from these non-Western cultures, this study says nothing about the relative level of general cognitive ability in various societies, nor can it be used to make cross-cultural comparisons. For this purpose, one must establish measurement invariance of a test across different cultural groups (e.g., Holding et al., 2018) to ensure that test items and tasks function in a similar way for each group.
This is absolutely essential to understanding the implications of the article.
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Panga Munthu test of intelligence
To me, this is the way to create tests of intelligence for non-Western cultures: find skills and manifestations of intelligence that are culturally appropriate for a group of examinees and use those skills to tap g. Cross-cultural testing would require identifying skills that are valued or developed in both cultures.
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psycnet.apa.org psycnet.apa.org
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This means that it is actually easier to measure intelligence than many other psychological constructs. Indeed, some individuals trying to measure other constructs have inadvertently created intelligence tests
When I learned this, it blew my mind.
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the Stanford-Binet intelligence test
Although the Stanford-Binet is historically important, the Wechsler family of intelligence tests have been more popular since the 1970s.
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- Aug 2018
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www.biorxiv.org www.biorxiv.org
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Languageseemingly evolved from changes in brain anatomy and wiring.
test annotation 1
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- Jan 2017
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www.huffingtonpost.com www.huffingtonpost.com
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Sara Holbrook had two of her poems used on the Texas state assessment tests. She verifies what I thought as a student. The questions are ridiculous. The test makers seem to think that their interpretation of a work is the only interpretation, and that they can read the author's mind and know their intent.
"Texas paid Pearson $500 million bucks to administer the tests". Is that right? Was that for just one year? What else could we do with $500 million?
She mentions a study showing that the results of another standardized test could be predicted pretty well using just three data points about families in the community: the percentage with income over $200K; the percentage in poverty; the percentage with bachelor's degrees. So the standardized test tells you nothing that you can't guess by looking at local incomes and education levels.
What a scam.
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- Aug 2016
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pdfsr.com pdfsr.com
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Proteus Vulgaris Characteristics – Biofield Treatment Analysis Biofield energy treatment is an alternative therapy approach that is studied in this research to bring the positive alternations in the characteristics of Proteus Vulgaris.
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works.bepress.com works.bepress.com
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Proteus Vulgaris - Hospital Acquired Infections Proteus Vulgaris is a gram-negative bacterium that is ranked third as the cause of hospital-acquired infections. The present study was undertaken to study the impact of an alternative energy treatment on properties of Proteus Vulgaris.
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loop.frontiersin.org loop.frontiersin.org
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Study of Proteus Vulgaris Antimicrobials Susceptibility Proteus Vulgaris antimicrobials susceptibility analysis shows changes in minimum inhibitory concentration and susceptibility patterns as compared to control sample after biofield energy treatment.
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www.mendeley.com www.mendeley.com
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Proteus Vulgaris - Impact of Human Energy Treatment Biochemical test results shows the impact of human energy treatment on phenotyping and genotyping characteristics of Proteus Vulgaris. Read here to know about this study.
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- Oct 2014
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iter-dev.utsc.utoronto.ca iter-dev.utsc.utoronto.ca
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Open Journal Systems
I am testing hypothes.is
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