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In computer software testing, a test assertion is an expression which encapsulates some testable logic specified about a target under test. The expression is formally presented as an assertion, along with some form of identifier, to help testers and engineers ensure that tests of the target relate properly and clearly to the corresponding specified statements about the target.
Assertions are often enabled during development and disabled during final testing and on release to the customer. Not checking assertions avoids the cost of evaluating the assertions while (assuming the assertions are free of side effects) still producing the same result under normal conditions. Under abnormal conditions, disabling assertion ...
Combines F# Quotation decompilation, evaluation, and incremental reduction implementations to allow test assertions to be written as plain, statically checked quoted expressions which produce step-by-step failure messages. Integrates configuration-free with all exception-based unit testing frameworks including xUnit.net, NUnit, and MbUnit.
Examples of oracles include specifications, contracts, [4] comparable products, past versions of the same product, inferences about intended or expected purpose, user or customer expectations, relevant standards, and applicable laws. Software testing is often dynamic in nature; running the software to verify actual output matches expected.
Selenium Grid is a server that allows tests to use web browser instances running on remote machines. With Selenium Grid, one server acts as the central hub. Tests contact the hub to obtain access to browser instances. The hub has a list of servers that provide access to browser instances (WebDriver nodes), and lets tests use these instances.
Whereas a hard-decision decoder operates on data that take on a fixed set of possible values (typically 0 or 1 in a binary code), the inputs to a soft-decision decoder may take on a whole range of values in-between. This extra information indicates the reliability of each input data point, and is used to form better estimates of the original data.
SystemVerilog has its own assertion specification language, similar to Property Specification Language. The subset of SystemVerilog language constructs that serves assertion is commonly called SystemVerilog Assertion or SVA. [6] SystemVerilog assertions are built from sequences and properties. Properties are a superset of sequences; any ...
Jasmine uses Selenium by default, but can use WebKit or Headless Chrome, to run browser tests. [16] Cypress, a frontend testing framework; QF-Test, a software tool for automated testing of programs via the graphical user interface where a headless browser can also be used for testing.