Nikolas Falco I attach an example of a report. Please check it.
INFO: [PHPUnit-3.x (default)] - 1 test report file(s) were found with the pattern 'tests/_output/report.xml' relative to '/home/jenkins/workspace/ches_devel' for the testing framework 'PHPUnit-3.x (default)'.
WARNING: The file '/home/jenkins/workspace/ches_devel/tests/_output/report.xml' is an invalid file.
WARNING: At line 4 of file:/home/jenkins/workspace/ches_devel/tests/_output/report.xml:cvc-complex-type.3.2.2: Attribute 'feature' is not allowed to appear in element 'testcase'.
WARNING: At line 5 of file:/home/jenkins/workspace/ches_devel/tests/_output/report.xml:cvc-complex-type.3.2.2: Attribute 'feature' is not allowed to appear in element 'testcase'.
WARNING: At line 6 of file:/home/jenkins/workspace/ches_devel/tests/_output/report.xml:cvc-complex-type.3.2.2: Attribute 'feature' is not allowed to appear in element 'testcase'.
WARNING: At line 7 of file:/home/jenkins/workspace/ches_devel/tests/_output/report.xml:cvc-complex-type.3.2.2: Attribute 'feature' is not allowed to appear in element 'testcase'.
WARNING: At line 8 of file:/home/jenkins/workspace/ches_devel/tests/_output/report.xml:cvc-complex-type.3.2.2: Attribute 'feature' is not allowed to appear in element 'testcase'.
WARNING: At line 9 of file:/home/jenkins/workspace/ches_devel/tests/_output/report.xml:cvc-complex-type.3.2.2: Attribute 'feature' is not allowed to appear in element 'testcase'.
WARNING: At line 10 of file:/home/jenkins/workspace/ches_devel/tests/_output/report.xml:cvc-complex-type.3.2.2: Attribute 'feature' is not allowed to appear in element 'testcase'.
WARNING: At line 11 of file:/home/jenkins/workspace/ches_devel/tests/_output/report.xml:cvc-complex-type.3.2.2: Attribute 'feature' is not allowed to appear in element 'testcase'.
WARNING: At line 12 of file:/home/jenkins/workspace/ches_devel/tests/_output/report.xml:cvc-complex-type.3.2.2: Attribute 'feature' is not allowed to appear in element 'testcase'.
WARNING: At line 13 of file:/home/jenkins/workspace/ches_devel/tests/_output/report.xml:cvc-complex-type.3.2.2: Attribute 'feature' is not allowed to appear in element 'testcase'.
WARNING: At line 14 of file:/home/jenkins/workspace/ches_devel/tests/_output/report.xml:cvc-complex-type.3.2.2: Attribute 'feature' is not allowed to appear in element 'testcase'.
WARNING: At line 15 of file:/home/jenkins/workspace/ches_devel/tests/_output/report.xml:cvc-complex-type.3.2.2: Attribute 'feature' is not allowed to appear in element 'testcase'.
WARNING: At line 16 of file:/home/jenkins/workspace/ches_devel/tests/_output/report.xml:cvc-complex-type.3.2.2: Attribute 'feature' is not allowed to appear in element 'testcase'.
WARNING: At line 17 of file:/home/jenkins/workspace/ches_devel/tests/_output/report.xml:cvc-complex-type.3.2.2: Attribute 'feature' is not allowed to appear in element 'testcase'.
WARNING: At line 18 of file:/home/jenkins/workspace/ches_devel/tests/_output/report.xml:cvc-complex-type.3.2.2: Attribute 'feature' is not allowed to appear in element 'testcase'.
WARNING: At line 19 of file:/home/jenkins/workspace/ches_devel/tests/_output/report.xml:cvc-complex-type.3.2.2: Attribute 'feature' is not allowed to appear in element 'testcase'.
WARNING: At line 20 of file:/home/jenkins/workspace/ches_devel/tests/_output/report.xml:cvc-complex-type.3.2.2: Attribute 'feature' is not allowed to appear in element 'testcase'.
WARNING: At line 21 of file:/home/jenkins/workspace/ches_devel/tests/_output/report.xml:cvc-complex-type.3.2.2: Attribute 'feature' is not allowed to appear in element 'testcase'.
WARNING: At line 22 of file:/home/jenkins/workspace/ches_devel/tests/_output/report.xml:cvc-complex-type.3.2.2: Attribute 'feature' is not allowed to appear in element 'testcase'.
WARNING: At line 23 of file:/home/jenkins/workspace/ches_devel/tests/_output/report.xml:cvc-complex-type.3.2.2: Attribute 'feature' is not allowed to appear in element 'testcase'.
WARNING: At line 24 of file:/home/jenkins/workspace/ches_devel/tests/_output/report.xml:cvc-complex-type.3.2.2: Attribute 'feature' is not allowed to appear in element 'testcase'.
WARNING: At line 25 of file:/home/jenkins/workspace/ches_devel/tests/_output/report.xml:cvc-complex-type.3.2.2: Attribute 'feature' is not allowed to appear in element 'testcase'.
WARNING: The result file '/home/jenkins/workspace/ches_devel/tests/_output/report.xml' for the metric 'PHPUnit' is not valid. The result file has been skipped.