This article is written by Codal's writter.

1. Automated Application
Testing
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2. 1.
Automated Application Testing
As a skilled iOS engineer working on a popular app in the App
Store, you follow best practices, are careful in the way that
you write code, and always test your code manually before
pushing it. And after conducting your last test in Xcode, and
submitting the code change, your boss let’s you know that
your build failed with an error that you never saw during your
manual tests.
Manual Tests are Only as
Reliable as the Tester

3. At Codal, we do everything in our power to make sure
that this never happens. To support our iOS development
ecosystem, which has many engineers and applications, we
use Test Automation. Test Automation is a type of quality
assurance testing that relies on predetermined conditions
and test factors in order to generate a widely applicable,
automated test that systematically checks a piece of software
for correct functionality.
We believe that test automation is critical to the successful
completion of any piece of software, and that’s why we’ve
made it a part of our process for every project.
2.
Automated Application Testing
Automated Tests are the
Key to Reliability

4. Projects without automated tests can become impossible
to maintain as they grow in size, especially when multiple
developers are involved. This is because, as you might
imagine, the more a project grows in size, the more difficult
it becomes to manually inspect it for perfect functionality.
Automated tests eliminate the human factor from QA—but
only so long as the automated tests that have been designed
by humans are well thought out.
There are two types of automated tests in iOS:
The Unit Test + The UI Test
3.
Automated Application Testing
Automated Tests are the
Key to Reliability

5. 4.
Automated Application Testing
The Unit Test
Unit testing is the process of testing the smallest building
blocks of an application, ensuring that they each function
without error on their own. In the event of an error occurs
during subsequent tests, unit testing helps to ensure that
the issue doesn’t lie in the functionality of the modules
themselves, but rather in the way that they communicate,
for example. Here at Codal we use Apple’s XCTest framework
for unit testing because it is the industry standard, and
allows for functional, fundamental, boolean, equality, nil, and
unconditional failure tests to be conducted automatically.
TEST TEST
TESTTEST

6. 5.
Automated Application Testing
The UI Test
UI testing is a different beast
altogether. Rather than focusing on
the components that make up an
app, UI tests assess the product as
a whole, without any knowledge
of how it was built. These tests
can be automated with specialized
tools that test the application
through APIs that behave as a user
might. Alternatively, a tester may
repeatedly and manually perform a
number of predetermined steps to
visually verify the functionality
of the application. Here at Codal, we use Apple’s UI
Automation tool to perform UI testing, because it is a very
powerful tool that lets developers automate tests of basic
functionality, interactions, and system controls.
TEST

7. 6.
Automated Application Testing
Happy Testing!
Want to implement automated tests, but don’t
know how? Hire the experts at Codal to ensure
your releases are always 100% reliable.

8. 10.
Automated Application Testing
Codal is a UX design and development agency with a focus on blending an
Agile process with the latest emerging technologies. Based in the heart of
Chicago, we have a knack for bringing out the best in every brand that we
work with. Our clientele has ranged from small business to enterprise, but our
philosophy has always remained the same: to empower brand visibility and
deliver the most elegant web and mobile solutions possible.