Slaesforce FAQ

how to write test coverage in salesforce

by Charlie Russel Published 2 years ago Updated 2 years ago
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There are different ways through which we can test the code coverage of our classes: 1. We can use the Salesforce CLI to retrieve the Apex Code coverage by simply running the following command: sfdx force:apex:test:run –codecoverage –resultformat human 2. Using Developer Console

Full Answer

How to test the code coverage of a class in Salesforce?

There are different ways through which we can test the code coverage of our classes: 1. We can use the Salesforce CLI to retrieve the Apex Code coverage by simply running the following command: sfdx force:apex:test:run –codecoverage –resultformat human

How to remove aggregated code coverage in Salesforce apex?

Setup -> Apex Test Execution -> Click on Option -> Uncheck the “Store Only Aggregated Code Coverage” b. Setup->Apex Test Execution->Click “View Test History” and clear all test history. Before moving on to the extraction, we need to compile all the classes first to eliminate the probabilities of error and then run all the tests.

What is a apexcodecoverage in Salesforce?

ApexCodeCoverage stores the lines that are covered and uncovered by each individual test method. For this reason, a class can have multiple coverage results in ApexCodeCoverage—one for each test method that has tested it. You can query these objects by using SOQL and the Tooling API to retrieve coverage information.

How do I fix coverage issues in Salesforce?

Most times, fixing coverage issues comes down to making sure that you create/insert appropriate test data (ideally, in a method with the @testSetup annotation). Coverage is what Salesforce requires, but code coverage alone is pretty meaningless.

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How do you create a test coverage report?

Generate the reportFrom the main menu, select Run | Generate Coverage Report, or click. in the Coverage tool window. ... In the Generate Coverage Report dialog, specify the directory in which the generated report should be stored, and optionally select the Open generated HTML in browser checkbox. ... Click Save.

What is overall test coverage in Salesforce?

You can view code coverage in several places in the Developer Console. The Tests tab includes an Overall Code Coverage panel that displays the code coverage percentage for every Apex class in your organization that has been included in a test run. It also displays the overall percentage.

How do you run tests with coverage?

Run a test with code coverage Open the desired file in the Project tool window and choose Run with Coverage from the context menu. You can also select a directory with test files and choose the corresponding command from the context menu to run several tests with coverage.

How is test code coverage calculated?

To calculate the code coverage percentage, simply use the following formula: Code Coverage Percentage = (Number of lines of code executed by a testing algorithm/Total number of lines of code in a system component) * 100.

Where is test coverage in Salesforce?

Test CoverageWe can use the Salesforce CLI to retrieve the Apex Code coverage by simply running the following command: sfdx force:apex:test:run –codecoverage –resultformat human.Using Developer Console. Follow the steps below to retrieve the aggregate code coverage details: a. ... Perform the above class compilation.

What's the minimum test coverage required to deploy?

75%You must have at least 75% of your Apex covered by unit tests to deploy your code to production environments. All triggers must have at least one line of test coverage.

What is good test coverage?

With that being said it is generally accepted that 80% coverage is a good goal to aim for. Trying to reach a higher coverage might turn out to be costly, while not necessary producing enough benefit. The first time you run your coverage tool you might find that you have a fairly low percentage of coverage.

What is the difference between code coverage and test coverage?

Test Coverage and Code coverage are measurement metrics to ease the assessment of the quality of application codes. Code coverage is used during the application is run to determine the exercise of application code. Test coverage applies to the overall test.

How do you run code coverage?

On the Test menu, select Analyze Code Coverage for All Tests. You can also run code coverage from the Test Explorer tool window. Show Code Coverage Coloring in the Code Coverage Results window. By default, code that is covered by tests is highlighted in light blue.

What is test coverage matrix?

A test matrix is used to capture the actual quality, the effort, the plan, resources and time required to complete all phases of software testing. A coverage matrix, also known as a traceability matrix, maps the test cases and customer requirements.

Is it possible to achieve 100% testing coverage?

We can not perform 100% testing on any application. but the criteria to ensure test completion on a project is 1. all the test cases are executed with the certain percentage of pass.

How do you get 100 code coverage?

2 commentsOne of the steps into achieving the 100% coverage rule is to start with a better design. E.g. many times setter and getters are considered trivial to test and thereby causing people to skip testing them and thus lowering the coverage. ... Agreed, the best way to improve coverage is to write less code.

What is Salesforce testing?

Testing is an important part of the Software Development Life Cycle (SDLC). Before moving the code in production, Salesforce ensures that your code has a minimum of 75% code coverage. This means that you have tested your code and it would not break in the production environment.

Can QA handle unit testing?

Tests can either be handled manually, where a QA team handles unit testing, integration testing, regression testing, and system testing, or automatically with tools such as Selenium, Assure Click, QTP, etc. This process is similar to other web-based applications, where testers have a clear understanding of the changes made.

Why is Salesforce history hard to test?

Code that relies on standard Salesforce history objects are hard to test, because we don't have the ability to insert history records explicitly, and inserting/updating normal records (like an Account) does not cause a history record to be generated when executing a unit test.

What to do if you are not getting coverage for a loop?

If you're not gaining coverage for a loop, you need to make sure that your test actually has records to loop over. Most times, fixing coverage issues comes down to making sure that you create/insert appropriate test data (ideally, in a method with the @testSetup annotation).

How to unit test a method?

The golden rule of unit testing 1 If you're not gaining coverage for a method, then you need to have a test that actually calls the method. 2 If you're not gaining coverage for an else block, then you need to have a test where you ensure that you do not satisfy the conditions to enter the corresponding if block. 3 If you're not gaining coverage for a loop, you need to make sure that your test actually has records to loop over.

What is the golden rule of unit testing?

The golden rule of unit testing. In unit testing, you only gain coverage for code that is executed as part of a test method. It really is that simple. You are completely in control of your unit test; so, if you're not getting coverage for part of your code, and want coverage for it, you need to ask yourself "how can I cause this code to be executed?

What is unit test?

A unit test is supposed to be just that, a test of a single "unit" of code. The definition of a "unit" of code can vary from person to person, and situation to situation, but for me it's usually a single method of the class I want to test.

Why is it good to write a test?

A nice thing about writing a variety of tests is that if you have unit tests to cover a variety of situations, you can largely stop worrying about getting enough code coverage. If you test your code against enough different situations, you will naturally gain coverage.

Why do we use unit tests?

The way I see things, the real use of unit tests is both to verify that your code behaves the way you think it should, and produces the correct output, as well as acting as a guard to alert you when changes or additions you make in the future break existing code. For both of those purposes, you need to use assertions.

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First, It’S Important to Understand Our Prime Objectives When Testing

Test Coverage

  • We often come across a situation while working on a project that requires us to pull off the test classes coverage to know the current status of our code. Testing is an important part of the Software Development Life Cycle (SDLC). Before moving the code in production, Salesforce ensures that your code has a minimum of 75% code coverage. This means ...
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Recommended Process For Matching Code Coverage Numbers For Production

  • Now that we understand why test coverage is important and how we can gather the data for it, let’s go through the recommended process for matching code coverage numbers for production: 1. We could use the full sandbox that is similar to the staging sandbox environment we use for production deployments. A Full Sandbox mimics the metadata and data in production and helps …
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Code Coverage General Tips

  1. Always have a fresh pull of the code coverage, sometimes the code coverage numbers aren’t refreshed when updates are made to the Apex code in the organisation unless tests are run.
  2. If the organization was updated since the last test run, rerun the Apex tests to get the correct estimate of the code coverage.
  3. We should know that the overall test coverage of the organization doesn’t include the manag…
  1. Always have a fresh pull of the code coverage, sometimes the code coverage numbers aren’t refreshed when updates are made to the Apex code in the organisation unless tests are run.
  2. If the organization was updated since the last test run, rerun the Apex tests to get the correct estimate of the code coverage.
  3. We should know that the overall test coverage of the organization doesn’t include the managed package tests. The exception may arise when the managed package tests cause your trigger to fire. The c...
  4. We know code coverage is dependent on the total number of lines of code, so if there’s any insertion or deletion of code, it would affect the code percentage. For example, let’s say an organization...

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