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class
...a single object.
Example:
class SomeClass
class << self
def test
end
end
end
test_obj = SomeClass.new
def test_obj.test_2
end
class << test_obj
def test_3
end
end
puts "Singleton's methods of SomeClass"
puts SomeClass.singleton_methods
puts '-----------------------...
How to profile methods in Scala?
...nge, I am pasting the relevant content below.
SPerformance - Performance Testing framework aimed at automagically comparing performance tests and working inside Simple Build Tool.
scala-benchmarking-template - SBT template project for creating Scala (micro-)benchmarks based on Caliper.
Metrics - C...
Is it OK to use Gson instance as a static field in a model bean (reuse)?
...
According to the comments the existing unit test does not really test much, be careful with anything related to thread safety...
There is a unit test checking for thread safety:
/**
* Tests for ensuring Gson thread-safety.
*
* @author Inderjeet Singh
* @author Jo...
Detect if value is number in MySQL
...
If your data is 'test', 'test0', 'test1111', '111test', '111'
To select all records where the data is a simple int:
SELECT *
FROM myTable
WHERE col1 REGEXP '^[0-9]+$';
Result: '111'
(In regex, ^ means begin, and $ means end)
To select...
Does R have an assert statement as in python?
...
stopifnot()
You may also be interested in packages like Runit and testthat for unit testing.
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SQL - The conversion of a varchar data type to a datetime data type resulted in an out-of-range valu
...parisons on characters converted to integers in an identical manner. In my test, I've found that some comparisons of converted characters, such as the exclamation point, will return type conversion errors, while other comparisons of converted characters, such as the space, will be determined to be o...
Why do we check up to the square root of a prime number to determine if it is prime?
To test whether a number is prime or not, why do we have to test whether it is divisible only up to the square root of that number?
...
How to print a dictionary line by line in Python?
...m including it here in case it can be of value to another. In running nosetest, I also found it helpful to be able to specify the output stream in the call so that sys.stderr could be used instead.
import sys
def dump(obj, nested_level=0, output=sys.stdout):
spacing = ' '
if isinstance(...
How to list only the file names that changed between two commits?
...ff --name-only HEAD~10 HEAD~5
to see the differences between the tenth latest commit and the fifth latest (or so).
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How do I wait for an asynchronously dispatched block to finish?
I am testing some code that does asynchronous processing using Grand Central Dispatch. The testing code looks like this:
13...