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Can anyone explains me the difference between line coverage and statement coverage in jest.
When I ran my coverage report I got a different line coverage percentage compared to statement.
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Relation to other metrics100% Statement Coverage implies 100% Line Coverage. But the opposite is not true: a line may contain multiple statements whereas a test may not succeed in executing all of them.
Line of code is basically how many end points you are using. A Statement is the group of code that you produce to create an expected output.
Line coverage measures how many statements you took (a statement is usually a line of code, not including comments, conditionals, etc). Branch coverages checks if you took the true and false branch for each conditional (if, while, for).
Line coverage reports on the execution footprint of testing in terms of which lines of code were executed to complete the test. Edge coverage reports which branches or code decision points were executed to complete the test. They both report a coverage metric, measured as a percentage.
if you have a line of code that says
var x= 10; console.log(x);
that's one line and 2 statements.
Statement coverage Has each statement in the program been executed.
Line coverage has each executable line in the source file been executed.
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