Leap 15 got php7 update[1] to 7.2.5(Tumbleweed will got it soon), php7-gmagick
test fail with this update[2], the failed testsuite below,

[   73s] FAILED TEST SUMMARY
[   73s] ---------------------------------------------------------------------
[   73s] Test annotate image [tests/gmagick-006-annotateimage.phpt]
[   73s] Test annotate [tests/gmagickdraw-003-annotate.phpt]
[   73s] Test GmagickDraw, setFontStretch
[tests/gmagickdraw_038_setFontStretch_basic.phpt]
[   73s] Test GmagickDraw, setTextAntialias
[tests/gmagickdraw_042_setTextAntialias_basic.phpt]
[   73s] Test GmagickDraw, setTextUnderColor
[tests/gmagickdraw_044_setTextUnderColor_basic.phpt]
[   73s] Test GmagickDraw, setFontFamily
[tests/gmagickdraw_045_setFontFamily_basic.phpt]

[1] https://build.opensuse.org/request/show/602618
[2]
https://build.opensuse.org/package/live_build_log/openSUSE:Leap:15.0/php7-gmagick/standard/x86_64