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[MUSIC]

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Hi I'm Ben and in this course we'll
be learning about testing an Android.

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Now I know you've already learned about
testing in Java, but as you may have

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expected, testing in Android requires
a slightly different approach.

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For starters, there's [LAUGH] not really
a clear consensus about how we should

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incorporate testing into our apps.

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So in this course, we'll be going over
three of the most popular choices for

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app tests.

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You'll see exactly how to use each one,
but

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more importantly, you'll learn how each
one takes a different approach to testing.

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So when it comes time to add
tests to your next project,

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you can pick the right
tool right from the start.

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But before we get to the tools,

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let's take a minute to see what's wrong
with our current approach to testing.

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Let's start by downloading the project
we'll be using from GitHub.

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The link is down below
in the teacher's notes.

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There's also a link to a workshop on
how to use GitHub with Android Studio

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in case you need it.

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Let's click Check out project from
Version Control > pick GitHub,

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paste in the Repository URL,
and then hit Clone.

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And hit Yes to check it
out from Version Control.

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Then, it looks like we're having
an error loading three modules.

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Let's choose to keep these.

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Now that we've got the project imported,

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let's take a minute to see
what we'll be testing.

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Let's start by running the app to
first make sure that it works.

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If it doesn't work, it's likely that
the project is referencing something and

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it's build.Gradle file that
isn't installed on your machine.

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All right, here's the app.

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We've got a text view up top and below
is an edit text, a spinner and a button.

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If we change the edit text,
hello world, and

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then click the check,
it updates the text view.

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The spinner updates
the background color and

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the launch activity button launches
this other activity, very exciting.

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As you might have guessed, our goal in
this course will be to successfully test

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each of those three things.

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So changing the added text
should update the text view.

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Selecting a spinner item should
update the background color.

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And clicking the Launch Activity button
should launch this other activity.

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But before we get to the tests,

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let's quickly look through the code

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as well over in main activity.

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We've got the fields for
our views up top, then and

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on create we set our layout,
initialize our views,

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set up the spinner and
then we add our actions to our views.

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Updating the text view when
we change the edit text,

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changing the background color
when we select a spinner item,

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and starting the other activity when
we click the Launch Activity button.

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So far so good.

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In the next video,
we'll start adding some tests.