--TEST-- Test that a package which has a conflict does not get installed and has to be downgraded --COMPOSER-- { "repositories": [ { "type": "package", "package": [ { "name": "conflicter/pkg", "version": "1.0.1", "conflict": { "victim/pkg": "1.1.0"} }, { "name": "victim/pkg", "version": "1.0.0" }, { "name": "victim/pkg", "version": "1.0.1" }, { "name": "victim/pkg", "version": "1.0.2" }, { "name": "victim/pkg", "version": "1.1.0" }, { "name": "victim/pkg", "version": "1.2.0" } ] } ], "require": { "conflicter/pkg": "^1.0", "victim/pkg": "^1 <1.2" } } --RUN-- update --EXPECT-EXIT-CODE-- 0 --EXPECT-- Installing conflicter/pkg (1.0.1) Installing victim/pkg (1.0.2)