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How to write a Unit Test?
...t test).
//for normal addition
@Test
public void testAdd1Plus1()
{
int x = 1 ; int y = 1;
assertEquals(2, myClass.add(x,y));
}
Add other cases as desired.
Test that your binary sum does not throw a unexpected exception if there is an integer overflow.
Test that your method handles...
dispatch_after - GCD in Swift?
...queue: dispatch_queue_t, block: dispatch_block_t?)
dispatch_time_t is a UInt64. The dispatch_queue_t is actually type aliased to an NSObject, but you should just use your familiar GCD methods to get queues. The block is a Swift closure. Specifically, dispatch_block_t is defined as () -> Void, w...
Why use ICollection and not IEnumerable or List on many-many/one-many relationships?
...n.microsoft.com/en-us/library/6sh2ey19.aspx).
From a more specific standpoint, lazy loading comes in to play with choosing the type. By default, navigation properties in Entity Framework come with change tracking and are proxies. In order for the dynamic proxy to be created as a navigation property...
PHP: How to handle
.../>), the position of the child element in the text, etc. LIBXML_NOCDATA converts CDATA nodes into text nodes, but doesn't fix the rest.
– IMSoP
Feb 7 '15 at 15:54
...
Best way to store date/time in mongodb
... use in your map-reduce jobs, for example.
If you need to, you can easily convert Date objects to and from Unix timestamps1), using the getTime() method and Date(milliseconds) constructor, respectively.
1) Strictly speaking, the Unix timestamp is measured in seconds. The JavaScript Date object mea...
Determine if a String is an Integer in Java [duplicate]
I'm trying to determine if a particular item in an Array of strings is an integer or not.
9 Answers
...
Bidirectional 1 to 1 Dictionary in C#
...mber of pairs stored in the dictionary
/// </summary>
public Int32 Count
{
get { return firstToSecond.Count; }
}
/// <summary>
/// Removes all items from the dictionary.
/// </summary>
public void Clear()
{
firstToSecond.Clear();...
Why is the gets function so dangerous that it should not be used?
... you want to use fgets, which has the signature
char* fgets(char *string, int length, FILE * stream);
(fgets, if it reads an entire line, will leave the '\n' in the string; you'll have to deal with that.)
It remained an official part of the language up to the 1999 ISO C standard, but
it was offi...
Confusion between factor levels and factor labels
...reatment A etc.
The factor function will look for the values a, b and c, convert them to numerical factor classes, and add the label values to the level attribute of the factor. This attribute is used to convert the internal numerical values to the correct labels. But as you see, there is no label...
Add column to SQL Server
... use the ALTER TABLE... syntax.
Example
ALTER TABLE YourTable
ADD Foo INT NULL /*Adds a new int column existing rows will be
given a NULL value for the new column*/
Or
ALTER TABLE YourTable
ADD Bar INT NOT NULL DEFAULT(0) /*Adds a new int column existing rows will
...