[rubygems/rubygems] Don't discard candidates matching ruby metadata

Do dependency filtering and materialization in one step. Before,
dependency filtering would not consider ruby metadata so it would
discard variants that end up not being materializable in the end.

https://github.com/rubygems/rubygems/commit/0c0d40d417

Co-authored-by: Ian Ker-Seymer <ian.kerseymer@shopify.com>

1 files changed, 18 insertions, 4 deletions

diff --git a/spec/bundler/install/gems/resolving_spec.rb b/spec/bundler/install/gems/resolving_spec.rb
index 1679ad4460..a55db83dc4 100644
--- a/spec/bundler/install/gems/resolving_spec.rb
+++ b/spec/bundler/install/gems/resolving_spec.rb
@@ -241,7 +241,7 @@ RSpec.describe "bundle install with install-time dependencies" do
         expect(the_bundle).to include_gems("rack 1.2")
       end
 
-      it "gives a meaningful error if there's a lockfile using the newer incompatible version" do
+      it "automatically updates lockfile to use the older version" do
         build_repo2 do
           build_gem "parallel_tests", "3.7.0" do |s|
             s.required_ruby_version = ">= #{current_ruby_minor}"
@@ -273,9 +273,23 @@ RSpec.describe "bundle install with install-time dependencies" do
              #{Bundler::VERSION}
         L
 
-        bundle "install --verbose", :artifice => "compact_index", :env => { "BUNDLER_SPEC_GEM_REPO" => gem_repo2.to_s }, :raise_on_error => false
-        expect(err).to include("parallel_tests-3.8.0 requires ruby version >= #{next_ruby_minor}")
-        expect(err).not_to include("That means the author of parallel_tests (3.8.0) has removed it.")
+        bundle "install --verbose", :artifice => "compact_index", :env => { "BUNDLER_SPEC_GEM_REPO" => gem_repo2.to_s }
+
+        expect(lockfile).to eq <<~L
+          GEM
+            remote: http://localgemserver.test/
+            specs:
+              parallel_tests (3.7.0)
+
+          PLATFORMS
+            #{lockfile_platforms}
+
+          DEPENDENCIES
+            parallel_tests
+
+          BUNDLED WITH
+             #{Bundler::VERSION}
+        L
       end
 
       it "gives a meaningful error on ruby version mismatches between dependencies" do