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How do I assert my exception message with JUnit Test annotation?
... Note: For me when the expectMessage was specified as an empty string, the comparison for the message was not performed
– redDevil
Nov 29 '15 at 9:23
1
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ASP.NET MVC Html.ValidationSummary(true) does not display model errors
...ages from ModelState. When there is some Exception in controller action on string
9 Answers
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How can I open a URL in Android's web browser from my application?
...
URLUtil is a great way to check on user entered "url" Strings
– Dan
Jun 21 '11 at 19:30
94
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How to check if a variable is set in Bash?
... expansion which evaluates to nothing if var is unset, and substitutes the string x otherwise.
Quotes Digression
Quotes can be omitted (so we can say ${var+x} instead of "${var+x}") because this syntax & usage guarantees this will only expand to something that does not require quotes (since it...
Give examples of functions which demonstrate covariance and contravariance in the cases of both over
...ce:
class Super {
Object getSomething(){}
}
class Sub extends Super {
String getSomething() {}
}
Sub#getSomething is covariant because it returns a subclass of the return type of Super#getSomething (but fullfills the contract of Super.getSomething())
Contravariance
class Super{
void doSom...
Go Error Handling Techniques [closed]
...ome would disagree for sure, but I would argue that this is the style seen all over the standard libraries in Golang. In other words, Go authors write error handling in this way.
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Bash script error [: !=: unary operator expected
...actually simplistic ... Pretty much covers all of your cases, and no empty string or unary concerns.
In the case the first arg is '-v', then do your conditional ps -ef, else in all other cases throw the usage.
#!/bin/sh
case $1 in
'-v') if [ "$1" = -v ]; then
echo "`ps -ef | grep -v '\[...
Enforcing the type of the indexed members of a Typescript object?
I would like to store a mapping of string -> string in a Typescript object, and enforce that all of the keys map to strings. For example:
...
How to negate a method reference predicate
...w method Predicate#not
So you can negate the method reference:
Stream<String> s = ...;
long nonEmptyStrings = s.filter(Predicate.not(String::isEmpty)).count();
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How does std::move() transfer values into RValues?
...ch I cleaned up a little bit):
template <typename T>
typename remove_reference<T>::type&& move(T&& arg)
{
return static_cast<typename remove_reference<T>::type&&>(arg);
}
Let's start with the easier part - that is, when the function is called wi...