greenlight
php-easycheck
greenlight | php-easycheck | |
---|---|---|
1 | 1 | |
133 | 0 | |
-0.8% | - | |
6.8 | 10.0 | |
9 months ago | over 8 years ago | |
Clojure | PHP | |
GNU General Public License v3.0 or later | - |
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greenlight
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Ask HN: What's your favorite software testing framework and why?
GitHub: https://github.com/amperity/greenlight
php-easycheck
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Ask HN: What's your favorite software testing framework and why?
I tend to use anything that offers property-testing, since tests are much shorter to write and uncover lots more hidden assumptions.
My go-to choices per language are:
- Python: Hypothesis https://hypothesis.readthedocs.io/en/latest (also compatible with PyTest)
- Scala: ScalaCheck https://scalacheck.org (also compatible with ScalaTest)
- Javascript/Typescript: JSVerify https://jsverify.github.io
- Haskell: LazySmallCheck2012 https://github.com/UoYCS-plasma/LazySmallCheck2012/blob/mast...
- When I wrote PHP (over a decade ago) there was no decent property-based test framework, so I cobbled one together https://github.com/Warbo/php-easycheck
All of the above use the same basic setup: tests can make universally-quantified statements (e.g. "for all (x: Int), foo(x) == foo(foo(x))"), then the framework checks that statement for a bunch of different inputs.
Most property-checking frameworks generate data randomly (with more or less sophistication). The Haskell ecosystem is more interesting:
- QuickCheck was one of the first property-testing frameworks, using random genrators.
- SmallCheck came later, which enumerates data instead (e.g. testing a Float might use 0, 1, -1, 2, -2, 0.5, -0.5, etc.). That's cute, but QuickCheck tends to exercise more code paths with each input.
- LazySmallCheck builds up test data on-demand, using Haskell's pervasive laziness. Tests are run with an error as input: if they pass, we're done; if they fail, we're done; if they trigger the error, they're run again with slightly more-defined inputs. For example, if the input is supposed to be a list, we try again with the two forms of list: empty and "cons" (the arguments to cons are both errors, to begin with). This exercises even more code paths for each input.
- LazySmallCheck2012 is a more versatile "update" to LazySmallCheck; in particular, it's able to generate functions.
What are some alternatives?
jsverify - Write powerful and concise tests. Property-based testing for JavaScript. Like QuickCheck.
embedded-postgres - Java embedded PostgreSQL component for testing
testy - test helpers for more meaningful, readable, and fluent tests
vitest - Next generation testing framework powered by Vite.
datadriven - Data-Driven Testing for Go
hitchstory - Type-safe YAML integration tests. Tests that write your docs. Tests that rewrite themselves.
ospec - Noiseless testing framework
tricorder - Automation the KISS way