Jasmine is a behavior-driven development framework used for testing JavaScript code. It has advantages like being easy to set up without dependencies. Lightning Test Services (LTS) are tools that create test suites for Lightning components to validate client-side behavior. LTS can be installed in an org as an unmanaged package or using SFDX commands.

1. Lightning Component Testing with Jasmine
Jasmine is a behaviour-driven
development framework - that is
used for the purpose of testing
Javascript code.
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2. What are the Advantages ?
Some advantages that Jasmine offers are:
● It is built easy to set up and it is
possible to set up in any scenario
● It has no requirement for DOM
● It has no dependency on any other
Javascript framework
● It helps to write tests in easy steps
because it comes with clean syntax
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What is lightning Test
Services?
Salesforce has come with a new concept
Lightning Test Services(LTS). LTS is a set
of tools and services - that create test suites
for these Lightning components. It helps in
the validation of the client-side behaviour
of these components.

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You can install LTS in your
Salesforce org in the
following two ways:
● As an unmanaged package
● Install LTS by using a command in
Salesforce Developer Experience(SFDX)

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Steps to follow for installing
Jasmine
We need to follow the following steps for
installing Jasmine and use it for further testing
the Lightning components
1. Installation of Jasmine with the above SFDX
command:
sfdx force:lightning:test:install

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2. Once the installation is completed, you
can start to navigate in your browser - so
as to open the Jasmine test runner page.
sfdx force:org:open -p /c/jasmineTests.app
3. Next, Lightning component is to be
used by Lightning Test Service (LTS).

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4. Now we need to create a Javascript file
containing Jasmine test method and upload it
as a static resource.
5. This static resource then gets uploaded in
Salesforce named as JasmineTestDatatable.
The reference to this app has to be added to the
static resource in JasmineTests.app.

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6. Finally,
the Jasmine Test Runner is opened with the
following URL.
https://<YourDomain>.lightning.force.com/c/jasm
ineTests.app.
This will show the output of the testing in the
form of which test passed and which of the tests
failed. It also displays the pass and fail
percentages.

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7. Also the SFDX commands can be used to
create a Lightning test with a basic template,
by using the following commands:
Sfdx:force:lightning:test:create

10. Thank You
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