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How to add an auto-incrementing primary key to an existing table, in PostgreSQL?
... commented)
Modern Versions of PostgreSQL
Suppose you have a table named test1, to which you want to add an auto-incrementing, primary-key id (surrogate) column. The following command should be sufficient in recent versions of PostgreSQL:
ALTER TABLE test1 ADD COLUMN id SERIAL PRIMARY KEY;
O...
JavaScript unit test tools for TDD
I've looked into and considered many JavaScript unit tests and testing tools, but have been unable to find a suitable option to remain fully TDD compliant. So, is there a JavaScript unit test tool that is fully TDD compliant?
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Making Maven run all tests, even when some fail
I have a project with several modules. When all tests pass, Maven test runs them all.
5 Answers
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Where is the “Create Unit Tests” selection?
...isualstudioalm/archive/2012/03/08/what-s-new-in-visual-studio-11-beta-unit-testing.aspx
Generate Unit Test Wizard – In VS2010 you could right click on a
method in your code and we would generate a unit test into your test
project. This wizard was very tightly coupled to MS-Test and depende...
Unit Testing AngularJS directive with templateUrl
...AngularJS directive that has a templateUrl defined. I am trying to unit test it with Jasmine.
12 Answers
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What is “rvalue reference for *this”?
... parameter" of the function†:
// t.cpp
#include <iostream>
struct test{
void f() &{ std::cout << "lvalue object\n"; }
void f() &&{ std::cout << "rvalue object\n"; }
};
int main(){
test t;
t.f(); // lvalue
test().f(); // rvalue
}
Output:
$ clang++ -std=c++...
C# namespace alias - what's the point?
...{
Handy h = new Handy(); // prove available
string test = "abc";
test.DoSomething(); // prove available
}
}
}
namespace Foo {
static class TypeOne {
public static void DoSomething(this string value) { }
}
class Handy {}
...
When would you use delegates in C#? [closed]
... handy (although the example is a little contrived).
string sTableName = "test";
string sQuery = "SELECT COLUMN_NAME FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME='" + sTableName + "'";
DataProvider.UseReader( sQuery,
delegate( System.Data.IDataReader reader )
{
Console.WriteLin...
How do you unit test private methods?
...ry that will have some public & private methods. I want to be able to unit test the private methods (mostly while developing, but also it could be useful for future refactoring).
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How can I call a custom Django manage.py command directly from a test driver?
I want to write a unit test for a Django manage.py command that does a backend operation on a database table. How would I invoke the management command directly from code?
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