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How can I time a code segment for testing performance with Pythons timeit?
...Focus on one specific thing. Disk I/O is slow, so I'd take that out of the test if all you are going to tweak is the database query.
And if you need to time your database execution, look for database tools instead, like asking for the query plan, and note that performance varies not only with the e...
MySQL - force not to use cache for testing speed of query
I'm testing the speed of some queries in MySQL. The database is caching these queries making it difficult for me to get reliable results when testing how fast these queries are.
...
Test iOS app on device without apple developer program or jailbreak
How can I test an iOS application on my iPod Touch without registering for the Apple Developer Program or jailbreaking my iPod?
...
How to output something in PowerShell
... outputting something is PowerShell is a thing of beauty - and one its greatest strengths. For example, the common Hello, World! application is reduced to a single line:
"Hello, World!"
It creates a string object, assigns the aforementioned value, and being the last item on the command pipeline i...
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...
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!"...
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...
Mockito test a void method throws an exception
...void return type. It can also throw a number of exceptions so I'd like to test those exceptions being thrown. All attempts have failed with the same reason:
...
Correct way to detach from a container without stopping it
In Docker 1.1.2 (latest), what's the correct way to detach from a container without stopping it?
10 Answers
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Overriding id on create in ActiveRecord
...
Try
a_post = Post.new do |p|
p.id = 10
p.title = 'Test'
p.save
end
that should give you what you're looking for.
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