answers: software developers
context: conditions, and thus more crisply define the unit's desired behavior. The cost of finding a bug before coding begins or when the code is first written is considerably lower than the cost of detecting, identifying, and correcting the bug later. Bugs in released code may also cause costly problems for the end-users of the software. Code can be impossible or difficult to unit test if poorly written, thus unit testing can force developers to structure functions and objects in better ways. In test-driven development (TDD), which is frequently used in both extreme programming and scrum, unit tests are created before </s> method. Unit tests are short code fragments created by programmers or occasionally by white box testers during the development process. It forms the basis for component testing. Ideally, each test case is independent from the others. Substitutes such as method stubs, mock objects, fakes, and test harnesses can be used to assist testing a module in isolation. Unit tests are typically written and run by software developers to ensure that code meets its design and behaves as intended. Because some classes may have references to other classes, testing a class can frequently spill over into testing another class. A common </s> minimal criteria such as number of credits, prerequisite courses, attendance, etc. Test scores are often perceived as the "sole criteria" simply because they are the most difficult, or the fulfillment of other criteria is automatically assumed. One exception to this rule is the GED, which has allowed many people to have their skills recognized even though they did not meet traditional criteria. Standardized test A standardized test is a test that is administered and scored in a consistent, or "standard", manner. Standardized tests are designed in such a way that the questions, conditions for administering, scoring procedures, and interpretations are
question: who is usually responsible for writing unit tests