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In this example, Playwright is used to open a Chromium browser, navigate to https://example.com, take a screenshot and save it as example.png. @playwright/test further extends these capabilities by providing a test runner that allows developers to write and organize their tests in a more structured and scalable manner.
Program comprehension (also program understanding or [source] code comprehension) is a domain of computer science concerned with the ways software engineers maintain existing source code. The cognitive and other processes involved are identified and studied. [1] The results are used to develop tools and training. [2]
import sugar let variable = collect (newSeq): for item in @[-9, 1, 42, 0,-1, 9]: item + 1 assert variable == @[-8, 2, 43, 1, 0, 10] The comprehension is implemented as a macro that is expanded at compile time, you can see the expanded code using the expandMacro compiler option:
An open-source source code explorer that provides interactive dependency graphs and supports multiple programming languages. Sparse: 2021-09-06 (0.6.4) Yes; MIT — C — — — — GCC extensions An open-source tool designed to find faults in the Linux kernel. Splint: 2007-07-12 (3.1.2) Yes; GPLv2 — C — — — — —
Here, the list [0..] represents , x^2>3 represents the predicate, and 2*x represents the output expression.. List comprehensions give results in a defined order (unlike the members of sets); and list comprehensions may generate the members of a list in order, rather than produce the entirety of the list thus allowing, for example, the previous Haskell definition of the members of an infinite list.
Tools that analyze source code to aid code comprehension, such as finding the definition and references of a symbol, call stack browsers, etc. . While most IDEs provide similar functionality, these tools are standalone and often support a wider variety of languages.
In software engineering, code coverage, also called test coverage, is a percentage measure of the degree to which the source code of a program is executed when a particular test suite is run. A program with high code coverage has more of its source code executed during testing, which suggests it has a lower chance of containing undetected ...
We begin with an arbitrary choice for x and y, for example x = y = 1. In the concrete execution, line 2 sets z to 2, and the test in line 3 fails since 1 ≠ 100000. Concurrently, the symbolic execution follows the same path but treats x and y as symbolic variables. It sets z to the expression 2y and notes that, because the test in line 3 ...