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How to test code dependent on environment variables using JUnit?
...onmentVariablesTest {
@Test
public void setEnvironmentVariable() {
String value = withEnvironmentVariable("name", "value")
.execute(() -> System.getenv("name"));
assertEquals("value", value);
}
}
For Java 5 to 7 the library System Rules has a JUnit rule called EnvironmentVari...
Deep cloning objects
... Your example illustrates the problem. Suppose you have a Dictionary<string, Customer>. Should the cloned Dictionary have the same Customer objects as the original, or copies of those Customer objects? There are reasonable use cases for either one. But ICloneable doesn't make clear which...
What is code coverage and how do YOU measure it?
...To check if all possible values for a parameter are tested. For example, a string could be any of these commonly: a) null, b) empty, c) whitespace (space, tabs, new line), d) valid string, e) invalid string, f) single-byte string, g) double-byte string. Failure to test each possible parameter value ...
How to make unicode string with python3
...
Literal strings are unicode by default in Python3.
Assuming that text is a bytes object, just use text.decode('utf-8')
unicode of Python2 is equivalent to str in Python3, so you can also write:
str(text, 'utf-8')
if you prefer.
...
What are the lesser known but useful data structures?
... tries are also an interesting variant, where you use only a prefix of the strings as nodes and otherwise store lists of strings in the nodes.
– Torsten Marek
Feb 1 '09 at 19:16
...
Create a Date with a set timezone without using a string representation
...nnot set it using UTC in the constructor though, unless you specify a date-string.
Using new Date(Date.UTC(year, month, day, hour, minute, second)) you can create a Date-object from a specific UTC time.
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Search all tables, all columns for a specific value SQL Server [duplicate]
I have a specific value, let's say string 'comments'. I need to find all instances of this in the database as I need to do an update on the format to change it to (*) Comments.
...
Remove useless zero digits from decimals in PHP
...
@alex This function works on integers, floats and strings.
– mpen
Jun 29 '16 at 16:14
...
What is memory fragmentation?
...uld be nice if true, but implementations of standard C++ templates such as string & vector can have some highly undesirable behaviours when they resize. For example in older versions of visual studio the std::string basically resizes by realloc 1.5 * current_size (to the nearest 8 bytes). So if ...
What to do Regular expression pattern doesn't match anywhere in string?
...lt;quote>
}{$+{BODY}}six;
return $_;
}
sub descape {
my $string = $_[0];
for my $_ ($string) {
s{
(?<! % )
% ( \p{Hex_Digit} {2} )
}{
chr hex $1;
}gsex;
s{
& \043
( [0-9]+ )
...