What is White Box TestingWhite box testing is an approach that allows testers to inspect and verify the inner workings of a software system—its code, infrastructure, and integrations with external systems. White box testing is an essential part of automated build processes in a modern Continuous Integration/Continuous Delivery (CI/CD) development pipeline. Show
White box testing is often referenced in the context of Static Application Security Testing (SAST), an approach that checks source code or binaries automatically and provides feedback on bugs and possible vulnerabilities. White box testing provides inputs and examines outputs, considering the inner workings of the code White Box Testing Pros and Cons
Black Box and White Box TestingWhite box testing is often contrasted with black box testing, which involves testing an application from the user’s perspective without any knowledge of its implementation:
Grey Box TestingWhite box testing involves complete knowledge of the inner workings of a system under test and black box involves no knowledge. Grey box testing, however, is a compromise – testing a system with partial knowledge of its internals. It is most commonly used in integration testing, end-to-end system testing, and penetration testing. Grey box testing combines inputs from developers and testers and can result in more effective testing strategies. It reduces the overhead required to perform functional testing of a large number of user paths, focusing testers on the paths most likely to affect users or result in a defect. Grey box testing combines the benefits of black box and white box testing:
In the world of Application Security Testing, the grey box testing approach is called Interactive Application Security Testing (IAST). IAST combines:
Types of White Box TestingWhite box testing can take several forms:
What Does White Box Testing Focus On?White box tests can focus on discovering any of the following problems with an application’s code:
Testing Techniques and Code CoverageOne of the main goals of white box testing is to cover the source code as comprehensively as possible. Code coverage is a metric that shows how much of an application’s code has unit tests checking its functionality. Within code coverage, it is possible to verify how much of an application’s logic is actually executed and tested by the unit test suite, using concepts like statement coverage, branch coverage, and path coverage. These concepts are discussed in more detail below. Statement CoverageStatement coverage is a white box testing technique that ensures all executable statements in the code are run and tested at least once. For example, if there are several conditions in a block of code, each of which is used for a certain range of inputs, the test should execute each and every range of inputs, to ensure all lines of code are actually executed. Statement coverage helps uncover unused statements, unused branches, missing statement that are referenced by part of the code, and dead code left over from previous versions. Branch CoverageBranch coverage maps the code into branches of conditional logic, and ensures that each and every branch is covered by unit tests. For example, if there are several nested conditional statements: if X then.. if Y then.. A B else if Z then.. C else.. D A, C, and D are conditional branches, because they occur only if a condition is satisfied. B is an unconditional branch, because it is always executed after A. In a branch coverage approach, the tester identifies all conditional and unconditional branches and writes code to execute as many branches as possible. Path CoveragePath coverage is concerned with linearly independent paths through the code. Testers draw a control flow diagram of the code, such as the example below. Control flow diagram used to design tests in a path coverage approach In this example, there are several possible paths through the code:
In a path coverage approach, the tester writers unit tests to execute as many as possible of the paths through the program’s control flow. The objective is to identify paths that are broken, redundant, or inefficient. Imperva Runtime Application Self ProtectionRuntime Application Self Protection (RASP) complements white box and black box testing by adding an extra layer of protection once the application is already in production or in a realistic staging environment. RASP has the following benefits:
Imperva RASP provides these benefits, keeping your applications protected and giving you essential feedback for eliminating any additional risks. It requires no changes to code and integrates easily with existing applications and DevOps processes, protecting you from both known and zero-day attacks. In addition, Imperva provides multi-layered protection to make sure websites and applications are available, easily accessible and safe. The Imperva application security solution includes:
What are 4 benefits of using a network?Five Benefits of Networking. Shared Knowledge. Networking is great for sharing ideas and knowledge. ... . Opportunities. It's natural that networking will result in opportunities. ... . Connections. ... . Increased confidence. ... . Raising your profile.. Which of the following are the benefits of network?Files can easily be shared between users. Network users can communicate by email and instant messenger . Security is good - users cannot see other users' files unlike on stand-alone machines. Data is easy to backup as all the data is stored on the file server .
What is a network and what are it's benefits?The computer network is defined as a set of interconnected autonomous systems that facilitate distributed processing of information. It results in better performance with a high speed of processing. Advantages of Network: These are the main advantages of Computer Networks: Central Storage of Data –
What are the benefits of a network short answer?Advantages of PANs. No wires are required. The connecting devices in a PAN only require Bluetooth to be enabled, which eliminates the need for extra wires. ... . Reliable and secure. A PAN network ensures a reliable and stable connection if it's established within the 10-meter range.. Easy data synchronization. ... . Portability.. |