So i'm using EclEmma in Eclipse to generate a XML coverage report. Looks something like this:
<?xml version="1.0" encoding="UTF-8" standalone="true"?>
<!DOCTYPE report SYSTEM "report.dtd" PUBLIC "-//JACOCO//DTD Report 1.1//EN">
-<report name="mainTest (1) (Apr 23, 2020 3:48:01 PM)">
-<group name="covTest2">
-<group name="src">
-<package name="covTest2">
-<class name="covTest2/main" sourcefilename="main.java">
-<method name="<init>" line="3" desc="()V">
<counter covered="0" missed="3" type="INSTRUCTION"/>
<counter covered="0" missed="1" type="LINE"/>
<counter covered="0" missed="1" type="COMPLEXITY"/>
<counter covered="0" missed="1" type="METHOD"/>
</method>
-<method name="main" line="5" desc="([Ljava/lang/String;)V">
<counter covered="0" missed="11" type="INSTRUCTION"/>
<counter covered="0" missed="3" type="LINE"/>
<counter covered="0" missed="1" type="COMPLEXITY"/>
<counter covered="0" missed="1" type="METHOD"/>
</method>
<counter covered="0" missed="14" type="INSTRUCTION"/>
<counter covered="0" missed="4" type="LINE"/>
<counter covered="0" missed="2" type="COMPLEXITY"/>
<counter covered="0" missed="2" type="METHOD"/>
<counter covered="0" missed="1" type="CLASS"/>
</class>
-<class name="covTest2/calc" sourcefilename="calc.java">
-<method name="<init>" line="3" desc="()V">
<counter covered="3" missed="0" type="INSTRUCTION"/>
<counter covered="1" missed="0" type="LINE"/>
<counter covered="1" missed="0" type="COMPLEXITY"/>
<counter covered="1" missed="0" type="METHOD"/>
</method>
-<method name="sum" line="5" desc="(II)I">
<counter covered="4" missed="0" type="INSTRUCTION"/>
<counter covered="1" missed="0" type="LINE"/>
<counter covered="1" missed="0" type="COMPLEXITY"/>
<counter covered="1" missed="0" type="METHOD"/>
</method>
<counter covered="7" missed="0" type="INSTRUCTION"/>
<counter covered="2" missed="0" type="LINE"/>
<counter covered="2" missed="0" type="COMPLEXITY"/>
<counter covered="2" missed="0" type="METHOD"/>
<counter covered="1" missed="0" type="CLASS"/>
</class>
-<sourcefile name="main.java">
<line cb="0" mb="0" ci="0" mi="3" nr="3"/>
<line cb="0" mb="0" ci="0" mi="4" nr="5"/>
<line cb="0" mb="0" ci="0" mi="6" nr="6"/>
<line cb="0" mb="0" ci="0" mi="1" nr="7"/>
<counter covered="0" missed="14" type="INSTRUCTION"/>
<counter covered="0" missed="4" type="LINE"/>
<counter covered="0" missed="2" type="COMPLEXITY"/>
<counter covered="0" missed="2" type="METHOD"/>
<counter covered="0" missed="1" type="CLASS"/>
</sourcefile>
-<sourcefile name="calc.java">
<line cb="0" mb="0" ci="3" mi="0" nr="3"/>
<line cb="0" mb="0" ci="4" mi="0" nr="5"/>
<counter covered="7" missed="0" type="INSTRUCTION"/>
<counter covered="2" missed="0" type="LINE"/>
<counter covered="2" missed="0" type="COMPLEXITY"/>
<counter covered="2" missed="0" type="METHOD"/>
<counter covered="1" missed="0" type="CLASS"/>
</sourcefile>
<counter covered="7" missed="14" type="INSTRUCTION"/>
<counter covered="2" missed="4" type="LINE"/>
<counter covered="2" missed="2" type="COMPLEXITY"/>
<counter covered="2" missed="2" type="METHOD"/>
<counter covered="1" missed="1" type="CLASS"/>
</package>
-<package name="TestCase">
-<class name="TestCase/mainTest" sourcefilename="mainTest.java">
-<method name="<init>" line="9" desc="()V">
<counter covered="0" missed="3" type="INSTRUCTION"/>
<counter covered="0" missed="1" type="LINE"/>
<counter covered="0" missed="1" type="COMPLEXITY"/>
<counter covered="0" missed="1" type="METHOD"/>
</method>
-<method name="test" line="13" desc="()V">
<counter covered="0" missed="11" type="INSTRUCTION"/>
<counter covered="0" missed="3" type="LINE"/>
<counter covered="0" missed="1" type="COMPLEXITY"/>
<counter covered="0" missed="1" type="METHOD"/>
</method>
<counter covered="0" missed="14" type="INSTRUCTION"/>
<counter covered="0" missed="4" type="LINE"/>
<counter covered="0" missed="2" type="COMPLEXITY"/>
<counter covered="0" missed="2" type="METHOD"/>
<counter covered="0" missed="1" type="CLASS"/>
</class>
-<sourcefile name="mainTest.java">
<line cb="0" mb="0" ci="0" mi="3" nr="9"/>
<line cb="0" mb="0" ci="0" mi="4" nr="13"/>
<line cb="0" mb="0" ci="0" mi="6" nr="14"/>
<line cb="0" mb="0" ci="0" mi="1" nr="16"/>
<counter covered="0" missed="14" type="INSTRUCTION"/>
<counter covered="0" missed="4" type="LINE"/>
<counter covered="0" missed="2" type="COMPLEXITY"/>
<counter covered="0" missed="2" type="METHOD"/>
<counter covered="0" missed="1" type="CLASS"/>
</sourcefile>
<counter covered="0" missed="14" type="INSTRUCTION"/>
<counter covered="0" missed="4" type="LINE"/>
<counter covered="0" missed="2" type="COMPLEXITY"/>
<counter covered="0" missed="2" type="METHOD"/>
<counter covered="0" missed="1" type="CLASS"/>
</package>
<counter covered="7" missed="28" type="INSTRUCTION"/>
<counter covered="2" missed="8" type="LINE"/>
<counter covered="2" missed="4" type="COMPLEXITY"/>
<counter covered="2" missed="4" type="METHOD"/>
<counter covered="1" missed="2" type="CLASS"/>
</group>
<counter covered="7" missed="28" type="INSTRUCTION"/>
<counter covered="2" missed="8" type="LINE"/>
<counter covered="2" missed="4" type="COMPLEXITY"/>
<counter covered="2" missed="4" type="METHOD"/>
<counter covered="1" missed="2" type="CLASS"/>
</group>
<counter covered="7" missed="28" type="INSTRUCTION"/>
<counter covered="2" missed="8" type="LINE"/>
<counter covered="2" missed="4" type="COMPLEXITY"/>
<counter covered="2" missed="4" type="METHOD"/>
<counter covered="1" missed="2" type="CLASS"/>
</report>
In this file it shows one test "mainTest" What i would like to know is witch files "mainTest" covers and how many % of those files that are covered by the test "mainTest". Tips for other tools that can achieve this are welcome if ECLEmma does not work :)
You can use the "includes" parameter to specify which classes you want in the report. See documentation here:
https://www.eclemma.org/jacoco/trunk/doc/report-mojo.html
There are many other code coverage tools available and picking which tests you want to include would be a common option. Sample list available here:
https://en.wikipedia.org/wiki/Java_code_coverage_tools