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Rspec doesn't see my model Class. uninitialized constant error

I'm writing tests on Rspec for my models in Ruby on Rails application. And I receive this error while starting 'rspec spec' ...
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C++ equivalent of java's instanceof

...e v->doSomething(); } This requires your compiler to have rtti support enabled. EDIT: I've had some good comments on this answer! Every time you need to use a dynamic_cast (or instanceof) you'd better ask yourself whether it's a necessary thing. It's generally a sign of poor design. Typi...
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Java Embedded Databases Comparison [closed]

I intend to develop a small (Java) application for managing my finances. I believe I need to use an embedded database, but I have no experience regarding this issue. I tried to look at some of the available products , but I can't decide which one would be more suitable for me. H2 , HSQLDB , Derb...
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MySQL: #126 - Incorrect key file for table

I got the following error from a MySQL query. 17 Answers 17 ...
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Preserve line breaks in angularjs

...tem in items"> {{item.description}} </div> /* in the css file or in a style block */ .angular-with-newlines { white-space: pre-wrap; } This will use newlines and whitespace as given, but also break content at the content boundaries. More information about the white-space property ...
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What is an example of the Liskov Substitution Principle?

... Liskov Substitution Principle (LSP) is a fundamental principle of object oriented design. What is it and what are some examples of its use? ...
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How to validate date with format “mm/dd/yyyy” in JavaScript?

I want to validate the date format on an input using the format mm/dd/yyyy . 19 Answers ...
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Does anyone still use [goto] in C# and if so why? [closed]

I was wondering whether anyone still uses the "goto" keyword syntax in C# and what possible reasons there are for doing so. ...
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Browser doesn't scale below 400px?

I'm working on putting together a liquid style-sheet and it works wonderful. One thing that I've noticed is that my browser window in Chrome won't resize below 400px it just gets stuck there and in FF as I scale down it it just stops at around 400px and then pops a horizontal scroll bar. ...
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Combating AngularJS executing controller twice

I understand AngularJS runs through some code twice, sometimes even more, like $watch events, constantly checking model states etc. ...