Questions tagged [assertions]
In computer programming, an assertion is a predicate (a true|false statement) placed in a program to indicate that the developer thinks that the predicate is always true at that place. If an assertion evaluates to false at run-time, an assertion failure results, which typically causes execution to abort.
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My own ThrowHelper extension methods
I really like ArgumentNullException.ThrowIf(...) and ArgumentException.ThrowIfNullOrEmpty(...) and there are upcoming ones in ....
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Python function: user input to get positive integer using assert
Is it a bad thing to use asserts to validate user inputs? Or should I keep using an if statement in case the number isnt positive?
Code with assert statement:
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Parameter Scaling C++ Driver program
The question is:
In many mathematical problems, the parameters need to be scaled, either to convert between units or to standardise measurements to a certain range of values. Write a void function ...
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User Input in class sanitized
I want to sanitize my user input in my class. All is working as expected but first of all, I would like to avoid to set a default value for my digit parameter. ...
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Type that returns a result based on some logic [closed]
I have a type that returns a result based on some logic. The result contains a message. Should a good unit test check that the message is correct?
A negligible amount has changed as I'm not allowed ...
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Custom timer assert
I would like to make a custom Assertion for my unit test, which would measure the execution time of two c# functions and compare them. I have written the code below, but there is a better way?
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MS Fakes Shims. Assert "was called" (by closures)
Is it a good or bad practice to use closures for asserting the method was called in such a way?
The method set a shim and return an Action wich both capture local mutable variable:
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Test helper method to assert if text could be found
Lately I've been getting a lot of critique in my code reviews at work, where typical comments have been that my variable names are unclear/confusing, flow in method could be simplified, unnecessary ...
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Verifying user accounts on SMTP servers
I've been writing a basic script to enumerate SMTP users (via a user dictionary) on poorly configured SMTP servers. In scripts like this, I usually see arguments handled as follows:
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Simple JavaScript precondition checking implementation
I am writing a JavaScript application and would like to validate function arguments in many places. Most of these checks will be for correct argument types, or numeric values within specific ranges.
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Unit testing private constructors and getter setters
I have a class Address, a class AddressTest and I am trying to write unit tests for its constructors and getter setters.
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Suggesting "safe enum" class for ISO C
There are quite some questions and answers about how to make enum really type-safe and I didn't find a solution that ensures both type safety and valid values. So I ...
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Compile-time printf-style format checking
Inspired by this open ticket on Boost, this seeks to complete the work there.
Given a printf-style format string and associated arguments, a static_assert is ...
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Compile-time printf format checking
Compile time checking of printf-like format strings
Inspired by this open ticket on boost, this seeks to complete the work there
Given a printf-style format string and associated arguments, a ...
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How can I ensure some structure for classes for a plug-in system written in Python? [closed]
I have written a toolkit (hwrt) which has a plugin system. One type of plugin is a feature (see this) for many of them.
There are some restrictions of feature ...
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NSAssert or NSLog in defaults switch case
I am wondering if I should use NSLog(@"Switch out of range") or NSAssert(FALSE,@"Switch out of range"); in the following example:...
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Better way to assert correct return values in Groovy
I have written a function that returns me the duplicates of a list:
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Automatically run doctest every time program is run
I would like this to happen every time I run a program from the command line. Is my approach Pythonic? I'm interested to know whether there is any problem with readability or correctness. Any general ...
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How should I structure my Unit tests for minimal Asserts?
I always see comments about how a Unit Test should only be testing one piece of functionality. For the most part, I definitely agree with that assessment. However, I'm working on testing a method ...
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What might be another way to test if int is 32 bits wide at compile time?
Below is code that will compile when INT_MAX is equal to 232. It will generate a compiler error when INT_MAX is not equal to 232....
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Defensive programming type-checking
I have issues with dynamically typed languages, and I tend to worry about type a lot.
Numpy has different behaviour depending on if something is a matrix or a plain ndarray, or a list. I didn't ...
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Vector of derived classes
Everyone knows you can't put a Derived in an std::vector<Base>. I decided to implement a collection which does allow you ...
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