Testing

Question 1

What does testing framework allow us to do?

Answer 1

Write unit tests

Question 2

What do test classes contain?

Answer 2

test classes contain unit tests

Question 3

What are unit tests?

Answer 3

methods that verify a specific piece of code is behaving correctly

Question 4

How should we name our test classes?

Answer 4

Name them after the class (for example: AccountTriggerHandler - AccountTriggerHandlerTest)

Question 5

Test Methods

Answer 5

• Take no Arguments
• Return no Values
• Must be Static

Question 6

What are the Asserting Values for Test Methods when writing system class methods?

Answer 6

• Assert
• assertEquals
• assertNotEquals

Question 7

Data in Test classes cannot by default do what?

Answer 7

by default, you cannot access org data

you can give access, but should avoid doing so

Question 8

When is TestSetup executed?

Answer 8

TestSetup is executed before each individual method

Question 9

SOQL will only return what?

Answer 9

SOQL will only return records generated in the method or in the test method

Question 10

SOSL will return what?

Answer 10

SOSL will return an empty list

Question 11

What do Test Utility Classes have?

Answer 11

Test Utility Classes have reusable code that can be called by multiple test classes

Question 12

What is TDD?

Answer 12

Test-Driven Development

It is a process that has use cases or requirements that are turned into test classes.

Question 13

What are the disadvantages of Manual testing?

Answer 13

It is inefficient since you act as an end user and have to go through the same process each time

Question 14

Why do we write unit tests for our code?

Answer 14

It ensures that our code meets the quality standards and produces the results needed for our production.
Allows code to be routinely tested whenever an update happens to ensure there is no code regression.

Question 15

What is some best practice to follow when writing test code?

Answer 15

It is recommended to write test code for one piece of our application at a time. We don’t want to write test code for our entire application at once.

Question 16

What is the @isTest annotation?

Answer 16

signifies that an apex class is a test class or that an apex method is a test method

test methods are contained within a test class using the @isTest annotation

Question 17

Where is the @isTest annotation used?

Answer 17

In an apex test method and an apex test class

Question 18

What is a naming ‘best practice’ for test classes and methods?

Answer 18

Name the test class and method after the class and method that is being tested. (ex: ApexClassName - ApexClassNameTest)

Question 19

What are asserting values?

Answer 19

System class methods that are used in test classes and don’t return a value.

Question 20

What should be your first choice of tool when it comes to testing?

Answer 20

Dummy data to make sure your tests are testing the right functionality

Question 21

What is a common term for dummy data?

Answer 21

CSV of data

Question 22

A Utility class can be used by…

Answer 22

multiple test classes as opposed to being called by only a single class.

Question 23

What does @testVisible do?

Answer 23

Makes private class members accessible by test classes

Question 24

@isTest(seeAllData=true)

Answer 24

• by default is set to false,

- setting it to true gives test access to your org

Question 25

What are the 2 main uses for Test.StartTest() and Test.StopTest()?

Answer 25

• They provide new context for the tests within specific governor limits
• You can force Asynchronous code to behave synchronously

Question 26

What does System.Assert do?

Answer 26

Lets us evaluate the condition given and if it is true, the test passes. otherwise the test fails

Question 27

What does System.AssertEquals() do?

Answer 27

takes in two values and the first value is the expected value, so what you are expecting is going to be returned. the Second value is the returned value. if they are the same, then the test passes

Question 28

What does System.AssertNotEquals() do?

Answer 28

Works the same way as System.AssertEquals(), but if they do NOT match, the test succeeds.

Question 29

What does System.RunAs(){} do?

Answer 29

Tests the code when running it as a different user.

Question 30

What are some ways of Test Execution?

Answer 30

• within the developer console
• in vs code
• Test Execution UI
• Running tests with API

Question 31

What is our code coverage percentage?

Answer 31

Code coverage percentage represents how much of our code has been covered by unit tests. 75% in order to send to production.

Question 32

How much code coverage percentage is the minimum for triggers?

Answer 32

1%

Question 33

Testing best practices -Positive

Answer 33

• Ensure the expected behavior occurs when the user correctly makes use of it
• If everything is correct, we get the correct answer

Question 34

testing best practices -Negative

Answer 34

Test to ensure that if things are not correctly used, are we handling it gracefully, and the errors being returned are the correct ones

Question 35

Testing best practices -Single Action

Answer 35

Pass in a single record, does it execute correctly?

Question 36

Testing best practices - Bulk Testing

Answer 36

Pass in multiple records, 200, is there a certain point to where our code cannot handle records being passed in

Question 37

Testing best practices -Restricted User

Answer 37

Are we sharing, or not sharing, access as is appropriate