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Questions tagged [assertion]

An assertion is a software construct where the developer states ("asserts") a condition that he believes will always be true. If the condition evaluates to false in some languages an exception is thrown, in others a message is printed, and in others the program ceases to operate.

An assertion is a software construct where the developer states ("asserts") a condition that he believes will always be true. If the condition evaluates to false, in some languages an exception is thrown, in others a message is printed, and in still others the program ceases to operate.

Assertions can exist in most high-level languages (C, Java, etc...) as well as in register-transfer-languages (RTL) such as Verilog, System Verilog, and VHDL.

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Any idea how to avoid this assertion in DDTokenCache and what it means?

I am using NSDataDetector with NSTextCheckingTypeLink to search a string for links (e.g. https://stackoverflow.com/questions) within it. Generally, it works fine, but when the string contains certain very long links (200+ chars) followed by a space…
Jim
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Use CodeCeption assertion in conditional (if) statement

I'm totally new with CodeCeption. I want to do an action/assertion depending on another assertion result, like this: if ($I->see('message')){ $I->click('button_close'); } Is something like that possible? I tried, but doesn't work. Probably…
Borjovsky
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Unit test for the 'none' type in Python

How would I go about testing for a function that does not return anything? For example, say I have this function: def is_in(char): my_list = [] my_list.append(char) and then if I were to test it: class TestIsIn(unittest.TestCase): def…
peppy
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Getting strange debugger message: Assertion failed: (cls), function getName: what is this?

Since I upgraded from Xcode 3.2.3 to 3.2.4 and iOS 4.0.1 to iOS 4.1 SDK, when I set a breakpoint in my code and single-step over instructions, at each step, the debugger will spit one or more of that line: Assertion failed: (cls), function getName,…
nemesys
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How to programmatically test if assertions are enabled?

One of the correct answers from OCP Java SE 6 Programmer Practice Exams is: You can programmatically test wheather assertions have been enabled without throwing an AssertionError. How can I do that?
Joe
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Why Q_ASSERT instead of assert

In Qt there is a Q_ASSERT macro. What's the advantage of using this instead of assert from ?
Zitrax
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golang type assertion using reflect.Typeof()

I've tried to identify a struct with string value(name). reflect.TypeOf returns Type. But type assertion needs a type. How can I casting Type to type? Or any suggestion to handle it? http://play.golang.org/p/3PJG3YxIyf package main import…
dorajistyle
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How to assert that two list contains elements with the same public properties in NUnit?

I want to assert that the elements of two list contains values that I expected, something like: var foundCollection = fooManager.LoadFoo(); var expectedCollection = new List() { new Foo() { Bar = "a", Bar2 = "b" }, new Foo() { Bar =…
Louis Rhys
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'CityListViewSet' should either include a `serializer_class` attribute, or override the `get_serializer_class()` method

I am assuming by the error in the title, once more here for clarity 'CityListViewSet' should either include a `serializer_class` attribute, or override the `get_serializer_class()` method. that my serializer isn't connected to my view, which in my…
user6781560
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countNonZero function gives an assertion error in openCV

I tried to get horizontal projection using countNonZero() function as below. Mat src = imread(INPUT_FILE, CV_LOAD_IMAGE_COLOR); Mat binaryImage = src.clone(); cvtColor(src, src, CV_BGR2GRAY); Mat horizontal = Mat::zeros(1,binaryImage.cols,…
Samitha Chathuranga
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Android - AssertionFailedError on startActivity method in ActivityUnitTestCase test class

I am trying to test an activity in a module. I am just trying to start this activity in the test method, but I always have a AssertionFailedError. I searched the web for this issue but could not find any solution. Any help is appreciated. This is my…
ismail
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Why doesn't Guava have postconditions? What can I use instead?

So, Guava has simple yet useful Preconditions to check method arguments. But I guess it would be reasonable to have a "Postconditions" class too. Or is it just because java provides assertions? Since a class like this doesn't exist, what is the…
Flo
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xUnit assert two values are equal with some tolerance

I'm trying to compare the precision of two numbers with some tolerance. This is how it was being checked in nUnit: Assert.That(turnOver, Is.EqualTo(turnoverExpected).Within(0.00001).Percent); I'm trying to do the same in xUnit but this is all I've…
nick gowdy
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Why do we use assert() and assert_options() in PHP?

I am new to using PHP and am learning it by reading the documentation on php.net- currently the page for assert() to know about those assert() and assert_options() functions, but it does not explain why we use them and what these functions do in…
Stack Overflow
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How to continue execution when Assertion is failed

I am using Selenium RC using Java with eclipse and TestNG framework. I have the following code snippet: assertTrue(selenium.isTextPresent("Please enter Email ID")); assertTrue(selenium.isTextPresent("Please enter Password")); First assertion was…
Ripon Al Wasim
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