HOW TO DO FOR INCREMENT THE CODE COVERAGE IN THE PROJECT?

My versions:

sonar-scanner-4.0.0.1744-linux

npm -version : 6.2.0
ng -version : Your global Angular CLI version (8.3.3) is greater than your local
version (8.3.1). The local Angular CLI version is used.
SonarServer : 7.8

This is my Report by i dont know ; how to get a coverage upper to 40%

How to do by

A post was merged into an existing topic: HOW TO INTERPRET THE EXPOSED RESULTS. How to increase coverage ? What does mean code coverage of 40%