Fix tmpdir

.github/workflows/test.yml

@@ -17,8 +17,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        RUBY_VERSION: ["2.0", "2.1", "2.2", "2.3"]
-        DYNAMIC_UNO_RUBY_VERSION: ["3.0"]
+        RUBY_VERSION: ["2.0", "2.1", "2.2", "2.3", "3.0"]
     steps:
       - name: Check out code
         uses: actions/checkout@v4
@@ -28,7 +27,21 @@ jobs:
         with:
           ruby-version: ${{ matrix.RUBY_VERSION }}
           bundler-cache: true
-          bundler-version: 1.13.6
+          bundler: 1.13.6
 
       - name: Run Tests
         run: bundle exec rake
+
+  results:
+    if: ${{ always() }}
+    runs-on: ubuntu-latest
+    name: Final Results
+    needs: [test]
+    steps:
+      - run: exit 1
+        # see https://stackoverflow.com/a/67532120/4907315
+        if: >-
+          ${{
+               contains(needs.*.result, 'failure')
+            || contains(needs.*.result, 'cancelled')
+          }}

spec/spawn_passthrough_spec.rb

@@ -1,4 +1,5 @@
 require 'spec_helper'
+require 'tmpdir'
 
 describe SpawnPassthrough do
   it 'has a version number' do