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How can I check that a form field is prefilled correctly using capybara?

... If you specifically want to test for a placeholder, use: page.should have_field("some_field_name", placeholder: "Some Placeholder") or: expect(page).to have_field("some_field_name", placeholder: "Some Placeholder") If you want to test the user-ent...
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How to measure elapsed time in Python?

... Given a function you'd like to time, test.py: def foo(): # print "hello" return "hello" the easiest way to use timeit is to call it from the command line: % python -mtimeit -s'import test' 'test.foo()' 1000000 loops, best of 3: 0.254 usec per loo...
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What's the most efficient test of whether a PHP string ends with another string?

The standard PHP way to test whether a string $str ends with a substring $test is: 13 Answers ...
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Disable copy constructor

...blic NonAssignable { }; For GCC this gives the following error message: test.h: In copy constructor ‘SymbolIndexer::SymbolIndexer(const SymbolIndexer&)’: test.h: error: ‘NonAssignable::NonAssignable(const NonAssignable&)’ is private I'm not very sure for this to work in every co...
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Rename package in Android Studio

... @Antonio drag the files in com.example.test to com.example and then delete com.example.test. – Dick Lucas Jul 28 '15 at 17:13 28 ...
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Maven: Command to update repository after adding dependency to POM

...ork. You can use mvn compile to download compile time dependencies or mvn test for compile time and test dependencies but I prefer something that always works. share | improve this answer ...
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C# Entity-Framework: How can I combine a .Find and .Include on a Model Object?

... I would really recommend using the latter (SingleOrDefault), ToList will retrieve all entries first and then select one – Sander Rijken Sep 8 '11 at 13:51 ...
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What's is the difference between train, validation and test set, in neural networks?

...ntinue training Once you're finished training, then you run against your testing set and verify that the accuracy is sufficient. Training Set: this data set is used to adjust the weights on the neural network. Validation Set: this data set is used to minimize overfitting. You're not adjusting th...
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Comparing date ranges

...' <= end) and ('1983-06-18' >= start) i.e. check the start of your test range is before the end of the database range, and that the end of your test range is after or on the start of the database range. share ...
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Python locale error: unsupported locale setting

... Run following commands export LC_ALL="en_US.UTF-8" export LC_CTYPE="en_US.UTF-8" sudo dpkg-reconfigure locales It will solve this. Make sure to match the .UTF-8 part to the actual syntax found in the output of locale -a e.g. .utf8 on some systems. ...