bug fix in test program

12 jobs for iso_metrics in 3 minutes and 41 seconds (queued for 4 seconds)
Status Job ID Name Coverage
  Build
passed #31956
conda-linux
build_linux_27

00:01:09

passed #31958
conda-linux
build_linux_34

00:01:10

passed #31960
conda-linux
build_linux_35

00:01:05

passed #31961
conda-macosx
build_macosx_27

00:01:41

passed #31959
conda-macosx
build_macosx_34

00:01:40

passed #31957
conda-macosx
build_macosx_35

00:01:38

 
  Test
passed #31966
conda-linux
test_linux_27

00:01:02

passed #31964
conda-linux
test_linux_34

00:01:09

passed #31962
conda-linux
test_linux_35

00:01:04

passed #31963
conda-macosx
test_macosx_27

00:01:54

passed #31965
conda-macosx
test_macosx_34

00:01:56

passed #31967
conda-macosx
test_macosx_35

00:01:53