Ecu Test Tutorial
Randell Magtoto
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Important warning: This tutorial would only work in x86 and x86_64 Linux. I don't think it works in OS X and BSD either. (I do think that it is relatively easy to get kcov work in some BSDs like FreeBSD, but I don't have any BSD box.)
You first need to get the basic dependencies: libcurl, libelf and libdw (but no libdwarf). I've confirmed the following command is enough for Ubuntu, use corresponding commands for other Linux distros.
There are some issues with the line number, in particular with macros. Also, sometimes, you will get uncovered lines which should not matter (e.g. #[should_panic] tests will get uncovered lines after the panic); kcov does not know about Rust after all.
I think the line 61's coverage is really for line 60 (that is, Ok(r) technically ends right before the { token). Also, the line 58 has a macro try!, which splits the execution (that is, it will execute self.regex(), then an expanded code for try!, then an assignment) and confuses kcov. This is another caveat from using a generic tool with no access to the language knowledge.
In some cases, there are multiple addresses for a particular line. Sometimes (like the case on line 58), this is probably because the compiler generates two basic blocks for this particular line (part of the line is conditional), so here it simply says that one of the branches has been executed, and the other not. Another case is with inlined code, in which case the same source line can map to many addresses for each of the sites it has been inlined in.
Running kcov on optimized code is of course possible (and advisable where it's applicable), but can sometimes make for confusing results. Of course, looking at the compiler output will also be confusing then
Would it be prudent to file an issue with the travis people to ask them to make kcov part of the standard install for rust projects? It seems unweildy for them to download it on every rust build. Maybe pass them this thread so they see the use case and need.
Different companies have different designations for people who test the software on the basis of their experience and knowledge such as Software Tester, Software Quality Assurance Engineer, QA Analyst, etc.
Cost Effective Development - Early testing saves both time and cost in many aspects, however reducing the cost without testing may result in improper design of a software application rendering the product useless.
Product Improvement - During the SDLC phases, testing is never a time-consuming process. However diagnosing and fixing the errors identified during proper testing is a time-consuming but productive activity.
Test Automation - Test Automation reduces the testing time, but it is not possible to start test automation at any time during software development. Test automaton should be started when the software has been manually tested and is stable to some extent. Moreover, test automation can never be used if requirements keep changing.
This tutorial is designed for software testing professionals who would like to understand the Testing Framework in detail along with its types, methods, and levels. This tutorial provides enough ingredients to start with the software testing process from where you can take yourself to higher levels of expertise.
Before proceeding with this tutorial, you should have a basic understanding of the software development life cycle (SDLC). In addition, you should have a basic understanding of software programming using any programming language.
Our Software testing tutorial includes all topics of Software testing such as Methods such as Black Box Testing, White Box Testing, Visual Box Testing and Gray Box Testing. Levels such as Unit Testing, Integration Testing, Regression Testing, Functional Testing. System Testing, Acceptance Testing, Alpha Testing, Beta Testing, Non-Functional testing, Security Testing, Portability Testing.
Software testing is a process of identifying the correctness of software by considering its all attributes (Reliability, Scalability, Portability, Re-usability, Usability) and evaluating the execution of software components to find the software bugs or errors or defects.
Software testing provides an independent view and objective of the software and gives surety of fitness of the software. It involves testing of all components under the required services to confirm that whether it is satisfying the specified requirements or not. The process is also providing the client with information about the quality of the software.
Testing is a group of techniques to determine the correctness of the application under the predefined script but, testing cannot find all the defect of application. The main intent of testing is to detect failures of the application so that failures can be discovered and corrected. It does not demonstrate that a product functions properly under all conditions but only that it is not working in some specific conditions.
Testing furnishes comparison that compares the behavior and state of software against mechanisms because the problem can be recognized by the mechanism. The mechanism may include past versions of the same specified product, comparable products, and interfaces of expected purpose, relevant standards, or other criteria but not limited up to these.
Testing includes an examination of code and also the execution of code in various environments, conditions as well as all the examining aspects of the code. In the current scenario of software development, a testing team may be separate from the development team so that Information derived from testing can be used to correct the process of software development.
The success of software depends upon acceptance of its targeted audience, easy graphical user interface, strong functionality load test, etc. For example, the audience of banking is totally different from the audience of a video game. Therefore, when an organization develops a software product, it can assess whether the software product will be beneficial to its purchasers and other audience.
The process of checking the functionality of an application as per the customer needs without taking any help of automation tools is known as manual testing. While performing the manual testing on any application, we do not need any specific knowledge of any testing tool, rather than have a proper understanding of the product so we can easily prepare the test document.
Automation testing is a process of converting any manual test cases into the test scripts with the help of automation tools, or any programming language is known as automation testing. With the help of automation testing, we can enhance the speed of our test execution because here, we do not require any human efforts. We need to write a test script and execute those scripts.
In this free QA Course, you will learn basic skills and Software Testing concepts. Lessons are taught using REAL-LIFE Examples for improved learning. Refer the tutorials sequentially one after the other.
Software testing can be learned by the people who want to start their career in the IT industry but not interested in coding. It can be learned by the people who want to learn various testing tools and enjoy finding bugs.
What this says is: 1..1 "I'm going to run one test." [1] ok 1 "The first test passed". And that's about all magic there is to testing. Your basic unit of testing is the ok. For each thing you test, an ok is printed. Simple. Test::Harness interprets your test results to determine if you succeeded or failed (more on that later).
That does the same thing as the previous code. ok() is the backbone of Perl testing, and we'll be using it instead of roll-your-own from here on. If ok() gets a true value, the test passes. False, it fails.
1..2 "I'm going to run two tests." This number is a plan. It helps to ensure your test program ran all the way through and didn't die or skip some tests. ok 1 "The first test passed." not ok 2 "The second test failed". Test::Simple helpfully prints out some extra commentary about your tests.
It's not scary. Come, hold my hand. We're going to give an example of testing a module. For our example, we'll be testing a date library, Date::ICal. It's on CPAN, so download a copy and follow along. [2]
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