From e253b88a2c352091c02a64ac413851080a885420 Mon Sep 17 00:00:00 2001
From: Justin Florentine <justin+github@florentine.us>
Date: Thu, 30 Nov 2023 10:52:19 -0500
Subject: [PATCH] debug for test splitting

Signed-off-by: Justin Florentine <justin+github@florentine.us>
---
 .github/workflows/parallel-unit-tests.yml | 32 ++++++++++++++++++-----
 1 file changed, 26 insertions(+), 6 deletions(-)

diff --git a/.github/workflows/parallel-unit-tests.yml b/.github/workflows/parallel-unit-tests.yml
index 092851f89c1..8e04470cf4d 100644
--- a/.github/workflows/parallel-unit-tests.yml
+++ b/.github/workflows/parallel-unit-tests.yml
@@ -19,15 +19,35 @@ jobs:
     steps:
       - name: Checkout Repo
         uses: actions/checkout@v3
+      - name: Download Test Reports
+        uses: actions/download-artifact@v3
+        with:
+          name: junit-xml-reports
+          path: tmp/junit-xml-reports-downloaded
+      - name : Split Unit tests
+        uses: r7kamura/split-tests-by-timings@v0
+        id: split-tests
+        with:
+          reports: tmp/junit-xml-reports-downloaded
+          glob: '**/test-results/test/TEST-*.xml'
+          index: ${{ matrix.ci_node_index }}
+          total: 4
       - name: Set up Java
         uses: actions/setup-java@v3
         with:
           distribution: adopt
           java-version: 17
           cache: gradle
-      - name: Build
-        uses: gradle/gradle-build-action@v2
-        with:
-          gradle-home-cache-cleanup: true
-          cache-read-only: false
-          arguments: compileJava compileTestJava -Dorg.gradle.parallel=true
+      - name: write out test list
+        run: echo "${{ steps.split-tests.outputs.paths }}" >> testList.txt
+      - name: debug testfile paths
+        run: cat testList.txt
+      - name: format gradle args
+        #regex means: first truncate file paths to align with package name, then swap path delimiter with package delimiter,
+        #then drop file extension, then insert --tests option between each.
+        run: cat testList.txt | sed -e 's@.*/src/test/java/@@g' -e 's@/@.@g' -e 's/\.java//g' -e 's/\ /\ --tests\ /g' >> gradleArgs.txt
+      - name debug test class list
+      - run: cat gradleArgs.txt
+      - name: run unit tests
+        run: ./gradlew test --tests `cat gradleArgs.txt`
+