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How to unit test a Node.js module that requires other modules and how to mock the global require fun
...ake care of overriding the global require inside your module while you are testing it.
This means you need no changes to your code in order to inject mocks for required modules.
Proxyquire has a very simple api which allows resolving the module you are trying to test and pass along mocks/stubs for...
How can I link to a specific glibc version?
...provided by glibc. This is mentioned at: https://sourceware.org/glibc/wiki/Testing/Builds?action=recall&rev=21#Compile_against_glibc_in_an_installed_location Those objects do early setup that glibc relies on, so I wouldn't be surprised if things crashed in wonderful and awesomely subtle ways.
F...
What's the difference between a Python “property” and “attribute”?
...lue is cached:
class Misc():
def __init__(self):
self.test = self.test_func()
def test_func(self):
print 'func running'
return 'func value'
cl = Misc()
print cl.test
print cl.test
Output:
func running
func value
func value
We accessed the a...
Append an object to a list in R in amortized constant time, O(1)?
...(amount of memory consumed) as a problem size grows. Running a performance test for various solutions given a fixed-size problem does not address the various solutions' growth rate. The OP is interested in knowing if there is a way to append objects to an R list in "amortized constant time". What do...
Can someone explain __all__ in Python?
...re constantly tweaking your API.
Maybe you do have users, but you have unittests that cover the API, and you're still actively adding to the API and tweaking in development.
An export decorator
The downside of using __all__ is that you have to write the names of functions and classes being export...
Return positions of a regex match() in Javascript?
...
@OnurYıldırım - here's a jsfiddle of it working...I've tested it all the way back to IE5...works great: jsfiddle.net/6uwn1vof
– Jimbo Jonny
Mar 29 '16 at 22:34
...
How to check if variable is string with python 2 and 3 compatibility
...rror:
def isstr(s):
return isinstance(s, str)
The try/except test is done once, and then defines a function that always works and is as fast as possible.
EDIT: Actually, we don't even need to call isinstance(); we just need to evaluate basestring and see if we get a NameError:
try:
...
Test if a variable is a list or tuple
In python, what's the best way to test if a variable contains a list or a tuple? (ie. a collection)
13 Answers
...
How to validate an email address in JavaScript
...Using regular expressions is probably the best way. You can see a bunch of tests here (taken from chromium)
function validateEmail(email) {
const re = /^(([^<>()\[\]\\.,;:\s@"]+(\.[^<>()\[\]\\.,;:\s@"]+)*)|(".+"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]...
URL rewriting with PHP
...all parameters are present, and if the type of parameters are correct.
To test the url we need to have a set of rules, and the best tool for that is a regular expression. By using regular expressions we will kill two flies with one blow. Url, to pass this test must have all the required parameters ...