--TEST-- Requirements from the composer file are not installed if the lock file is present, but fails on missing requirements --COMPOSER-- { "repositories": [ { "type": "package", "package": [ { "name": "required/pkg", "version": "1.0.0" }, { "name": "newly-required/pkg", "version": "1.0.0" } ] } ], "require": { "required/pkg": "1.0.0", "newly-required/pkg": "1.0.0" } } --LOCK-- { "packages": [ { "name": "required/pkg", "version": "1.0.0" } ], "packages-dev": [], "aliases": [], "minimum-stability": "stable", "stability-flags": {}, "prefer-stable": false, "prefer-lowest": false } --RUN-- install --EXPECT-OUTPUT-- Installing dependencies from lock file (including require-dev) Verifying lock file contents can be installed on current platform. - Required package "newly-required/pkg" is not present in the lock file. This usually happens when composer files are incorrectly merged or the composer.json file is manually edited. Read more about correctly resolving merge conflicts https://getcomposer.org/doc/articles/resolving-merge-conflicts.md and prefer using the "require" command over editing the composer.json file directly https://getcomposer.org/doc/03-cli.md#require-r --EXPECT-EXIT-CODE-- 4 --EXPECT--