How do I run a single test using Jest?

From the command line, use the –testNamePattern or -t flag: This will only run tests that match the test name pattern you provide. It’s in the Jest documentation. Another way is to run tests in watch mode, jest –watch, and then press P to filter the tests by typing the test file name or T to run a single test name. If you have an it inside … Read more

AttributeError: can’t set attribute

I am working on a legacy django project, in there somewhere there is a class defined as follows; and this class is used in views as follows this class was mainly created so that they could use it to perform assertions in the unit tests .i.e they are not using django.test.Client to test the views … Read more

Scroll to the top of the page using JavaScript?

If you don’t need the change to animate then you don’t need to use any special plugins – I’d just use the native JavaScript window.scrollTo() method — passing in 0, 0 will scroll the page to the top left instantly. Parameters xCoord is the pixel along the horizontal axis. yCoord is the pixel along the vertical axis.

Java – No enclosing instance of type Foo is accessible

static class Thing will make your program work. As it is, you’ve got Thing as an inner class, which (by definition) is associated with a particular instance of Hello (even if it never uses or refers to it), which means it’s an error to say new Thing(); without having a particular Hello instance in scope. If you declare it as a static class instead, … Read more

‘str’ object has no attribute ‘decode’. Python 3 error?

You are trying to decode an object that is already decoded. You have a str, there is no need to decode from UTF-8 anymore. Simply drop the .decode(‘utf-8’) part: As for your fetch() call, you are explicitly asking for just the first message. Use a range if you want to retrieve more messages. See the documentation: The message_set options to commands below is a … Read more

Proper shebang for Python script

is more portable because in general the program /usr/bin/env can be used to “activate” the desired command without full path. Otherwise, you would have to specify the full path of the Python interpreter, which can vary. So no matter if the Python interpreter was in /usr/bin/python or in /usr/local/bin/python or in your home directory, using #!/usr/bin/env python will work.

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