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Best way to check for “empty or null value”
...char(5) AS eq3;
Result:
eq1 | eq2 | eq3
----+-----+----
t | t | t
Test for "null or empty string" with char(n):
SELECT stringexpression
, stringexpression = '' AS base_test
, (stringexpression = '') IS NOT FALSE AS test1
, (stringexpression <> '') ...
Why 0 is true but false is 1 in the shell?
...convention saying 0 means success, and other values mean some error.
With test, [ ] or [[ ]] operators, bash conditions evaluate as true in case of an exit code of 0 (the result of /bin/true). Otherwise they evaluate as false.
Strings are evaluated differently than exit codes:
if [ 0 ] ; then ech...
How to percent-encode URL parameters in Python?
...sing '' for safe will solve your first issue:
>>> urllib.quote('/test')
'/test'
>>> urllib.quote('/test', safe='')
'%2Ftest'
About the second issue, there is a bug report about it here. Apparently it was fixed in python 3. You can workaround it by encoding as utf8 like this:
&g...
What is the best way to test for an empty string with jquery-out-of-the-box?
What is the best way to test for an empty string with jquery-out-of-the-box, i.e. without plugins? I tried this .
10 Answ...
How to iterate over array of objects in Handlebars?
... {username: "alan1", firstName: "Alan", lastName: "Johnson", email: "alan1@test.com" },
{username: "alan2", firstName: "Alan", lastName: "Johnson", email: "alan2@test.com" }
]
};
Finally attach the json to content holder:
$("#small-content-placeholder").html(sm...
How to get rspec-2 to give the full trace associated with a test failure?
Right now if I run my test suite using rake spec I get an error:
6 Answers
6
...
Returning unique_ptr from functions
...t has been given to that function.
The example could be like this:
class Test
{int i;};
std::unique_ptr<Test> foo1()
{
std::unique_ptr<Test> res(new Test);
return res;
}
std::unique_ptr<Test> foo2(std::unique_ptr<Test>&& t)
{
// return t; // this will p...
Test if remote TCP port is open from a shell script
I'm looking for a quick and simple method for properly testing if a given TCP port is open on a remote server, from inside a Shell script.
...
java.lang.NoClassDefFoundError: com/sun/mail/util/MailLogger for JUnit test case for Java mail
...form and is also included in the Java EE platform.
99% that you run your tests in SE environment which means what you have to bother about adding it manually to your classpath when running tests.
If you're using maven add the following dependency (you might want to change version):
<dependenc...
How do I use Assert.Throws to assert the type of the exception?
...));
A little tip when asserting on exception messages is to decorate the test method with the SetCultureAttribute to make sure that the thrown message is using the expected culture. This comes into play if you store your exception messages as resources to allow for localization.
...