test

.github/workflows/ci.yml

@@ -3,19 +3,37 @@ on: [pull_request]
 jobs:
   test-only-changed:
     runs-on: ubuntu-latest
+    defaults:
+      run:
+        shell: bash
+    env:
+      INPUT_ONLY_CHANGED: 'true'
+      INPUT_USE_BUNDLER: 'false'
     steps:
       - uses: actions/checkout@v4
-      - run: |
-          cp test/only_checked/files/* .
-          git add *
+      - name: setup
+        run: |
           git config user.email "workflow@github.com"
           git config user.name "I am an automated workflow"
+      - name: Check when there are relevant files
+        run: |
+          git checkout ${{ github.sha }}
+          cp test/only_checked/few_relevant/files/* .
+          git add *
           git commit -m auto
 
-          PATH="test/only_checked/mock_bins:$PATH" \
+          PATH="test/only_checked/few_relevant/mock_bins:$PATH" \
+            BASE_REF=$(git rev-parse HEAD~) \
+            HEAD_REF=$(git rev-parse HEAD) \
+            ./script.sh
+      - name: Check when there are no relevant files
+        run: |
+          git checkout ${{ github.sha }}
+          cp test/only_checked/nothing_relevant/files/* .
+          git add *
+          git commit -m auto
+
+          PATH="test/only_checked/nothing_relevant/mock_bins:$PATH" \
             BASE_REF=$(git rev-parse HEAD~) \
             HEAD_REF=$(git rev-parse HEAD) \
-            INPUT_ONLY_CHANGED=true \
-            INPUT_USE_BUNDLER=false \
             ./script.sh
-        shell: bash

test/only_checked/few_relevant/files/a.txt

@@ -0,0 +1 @@
+puts "Hello, " + "world!"

test/only_checked/few_relevant/mock_bins/bundle

@@ -0,0 +1,9 @@
+#!/bin/sh
+
+if [ "$1" = "exec" ]; then
+  shift
+  eval "$@"
+else
+  echo "Only 'exec' command is supported"
+  exit 1
+fi

test/only_checked/few_relevant/mock_bins/reviewdog

@@ -0,0 +1,8 @@
+#!/bin/bash
+
+read -r input
+
+if ! [ "$input" == "Mock message for reviewdog" ]; then
+  echo "reviewdog mock got unexpected input: $input"
+  exit 1
+fi

test/only_checked/mock_bins/rubocop → test/only_checked/few_relevant/mock_bins/rubocop

@@ -2,9 +2,9 @@
 
 case ARGV
 when %w[--list-target-files]
-  puts %w[a.rb b.rb c.rb]
+  puts Dir['**/*.rb']
 when %W[--require #{ENV['GITHUB_ACTION_PATH']}/rdjson_formatter/rdjson_formatter.rb --format RdjsonFormatter --fail-level error a.rb]
-  puts '{"source":{"name":"rubocop","url":"https://rubocop.org/"},"diagnostics":[],"severity":"INFO"}'
+  puts 'Mock message for reviewdog'
 else
   abort "rubocop mock called with unexpected arguments:\n#{ARGV.join("\n")}"
 end

test/only_checked/nothing_relevant/files/a.txt

@@ -0,0 +1 @@
+puts "Hello, " + "world!"

test/only_checked/nothing_relevant/mock_bins/bundle

@@ -0,0 +1,9 @@
+#!/bin/sh
+
+if [ "$1" = "exec" ]; then
+  shift
+  eval "$@"
+else
+  echo "Only 'exec' command is supported"
+  exit 1
+fi

test/only_checked/nothing_relevant/mock_bins/reviewdog

@@ -0,0 +1,4 @@
+#!/bin/bash
+
+echo "reviewdog mock got called unexpectedly"
+exit 1

test/only_checked/nothing_relevant/mock_bins/rubocop

@@ -0,0 +1,8 @@
+#!/usr/bin/env ruby
+
+case ARGV
+when %w[--list-target-files]
+  puts Dir['**/*.rb']
+else
+  abort "rubocop mock called with unexpected arguments:\n#{ARGV.join("\n")}"
+end