Understanding jacoco report

Question

This is a sample jacoco report for a class. I want to understand what these column values mean and what does M and C in each column mean? Also, which is the appropriate column to check the right coverage for a given class and its methods. Should I go with instruction or line coverage? What is the ideal coverage percentage for a class?

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Name instruction branch complexity line method

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constructor_name M:0 C:4 (100%) M:0 C:0 0% M:0 C:1 100% M:0 C:2 100% M:0 C:1 100% method_name M:0 C:52 (100%) M:0 C:2 100% M:0 C:2 100% M:0 C:9 100% M:0 C:1 100%

Note: I could not upload image as I didn't have enough reputation.

Answer 1

As you can see in the following image:

You have: Coverage, Covered Lines, Missed Lines and Total Lines.

I'll suggest you to use the eclipse plugin for the visualization of the jacoco report.

Hope it helps!