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Unit testing code with a file system dependency
I am writing a component that, given a ZIP file, needs to:
11 Answers
11
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shortcut for creating a Map from a List in groovy?
...ovy version 1.7.9 came out, so the method collectEntries didn't exist yet. It works exactly as the collectMap method that was proposed:
Map rowToMap(row) {
row.columns.collectEntries{[it.name, it.val]}
}
If for some reason you are stuck with an older Groovy version, the inject method can also...
Pointers in Python?
...rm.field.value to always have the
same value
This is feasible, because it involves decorated names and indexing -- i.e., completely different constructs from the barenames a and b that you're asking about, and for with your request is utterly impossible. Why ask for something impossible and tot...
What's the scope of the “using” declaration in C++?
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When you #include a header file in C++, it places the whole contents of the header file into the spot that you included it in the source file. So including a file that has a using declaration has the exact same effect of placing the using declaration at the top of ...
Visual Studio : short cut Key : Duplicate Line
...io 2017 (v15.6 and after)
Ctrl + D
In Visual Studio 2017 (pre v15.6)
(edit) This feature is now built-in in VS2017: Ctrl + E, V duplicates a line if nothing is selected, or duplicates selection. You can assign it to a different key combination, or find it in the menu:
See this reference for mo...
Why does C# disallow readonly local variables?
Having a friendly debate with a co-worker about this. We have some thoughts about this, but wondering what the SO crowd thinks about this?
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Getting number of elements in an iterator in Python
Is there an efficient way to know how many elements are in an iterator in Python, in general, without iterating through each and counting?
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What is a JavaBean exactly?
I understood, I think, that a "Bean" is a Java class with properties and getters/setters. As much as I understand, it is the equivalent of a C struct. Is that true?
...
What's the _ underscore representative of in Swift References?
...
Both answers were correct but I want to clarify a little bit more.
_ is used to modify external parameter name behavior for methods.
In Local and External Parameter Names for Methods section of the documentation, it says:
Swift gives the first parameter name in a method...
What does 'super' do in Python?
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The benefits of super() in single-inheritance are minimal -- mostly, you don't have to hard-code the name of the base class into every method that uses its parent methods.
However, it's almost impossible to use multiple-inheritance w...