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Putting a simple if-then-else statement on one line [duplicate]
...
or
field_plural = None
if field_plural is not None: print("insert into testtable(plural) '{0}'".format(field_plural))
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Convert string to integer type in Go?
...
Here are three ways to parse strings into integers, from fastest runtime to slowest:
strconv.ParseInt(...) fastest
strconv.Atoi(...) still very fast
fmt.Sscanf(...) not terribly fast but most flexible
Here's a benchmark that shows usage and example timing for each function:
packa...
MongoDB: How to update multiple documents with a single command?
...ment to update(), where the the third argument is the upsert argument:
db.test.update({foo: "bar"}, {$set: {test: "success!"}}, false, true);
For versions of mongodb 2.2+ you need to set option multi true to update multiple documents at once.
db.test.update({foo: "bar"}, {$set: {test: "success!"...
How to pass the -D System properties while testing on Eclipse?
...n by default, so you don't have to manually enter this repeatedly for many tests?
– Stewart
Mar 28 '16 at 22:24
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How to redirect to a 404 in Rails?
...gly conditional statements.
As a bonus, it's also super easy to handle in tests. For example, in an rspec integration test:
# RSpec 1
lambda {
visit '/something/you/want/to/404'
}.should raise_error(ActionController::RoutingError)
# RSpec 2+
expect {
get '/something/you/want/to/404'
}.to r...
How to check if smtp is working from commandline (Linux) [closed]
...t;sender@mydomain.com>
rcpt to:<to_email@mydomain.com>
data
From: test@mydomain.com
Subject: test mail from command line
this is test number 1
sent from linux box
.
quit
Note : Do not forgot the "." at the end which represents the end of the message.
The "quit" line exits ends the sessio...
What are fixtures in programming?
...
I think you're referring to test fixtures:
The purpose of a test fixture is to ensure that there is a well known
and fixed environment in which tests are run so that results are
repeatable. Some people call this the test context.
Examples o...
How do I detect unsigned integer multiply overflow?
...ur (UB) has occurred and your program can do anything (for example: render tests inconclusive).
#include <limits.h>
int a = <something>;
int x = <something>;
a += x; /* UB */
if (a < 0) { /* Unreliable test */
/* ... */
}
To create a conforming progr...
Function to Calculate Median in SQL Server
...uch faster than all other alternatives, at least on the simple schema they tested. This solution was 373x faster (!!!) than the slowest (PERCENTILE_CONT) solution tested. Note that this trick requires two separate queries which may not be practical in all cases. It also requires SQL 2012 or later....
Bulk insert with SQLAlchemy ORM
...ree of ORM-based automation.
The example below illustrates time-based tests for several different
methods of inserting rows, going from the most automated to the least.
With cPython 2.7, runtimes observed:
classics-MacBook-Pro:sqlalchemy classic$ python test.py
SQLAlchemy ORM: Total time f...