ci(tests): optimize workflow jobs and windows shards

Consolidate 5 standalone Ubuntu full-suite jobs into a single matrix.
Rebalance Windows shards (6 to 5) by merging `unit c` with `unit coverage`.
Rename Windows jobs to remove name collision between `windows` and
`windows-acceptance` (the skipped job on PRs now shows a clean label).
Keep acceptance matrix push-only.

Author: Chemaclass

.github/workflows/tests.yml

@@ -2,15 +2,39 @@ name: Tests
 
 on:
   pull_request:
+    paths-ignore:
+      - 'docs/**'
+      - 'adrs/**'
+      - '**/*.md'
+      - '.github/ISSUE_TEMPLATE/**'
+      - '.github/PULL_REQUEST_TEMPLATE.md'
   push:
     branches:
       - main
 
+concurrency:
+  group: tests-${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: ${{ github.ref != 'refs/heads/main' }}
+
 jobs:
   ubuntu:
-    name: "Ubuntu - latest"
+    name: "Ubuntu - ${{ matrix.name }}"
     runs-on: ubuntu-latest
     timeout-minutes: 10
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - name: "make test"
+            command: "make test"
+          - name: "simple"
+            command: "./bashunit --simple tests/"
+          - name: "parallel simple"
+            command: "./bashunit --parallel --simple tests/"
+          - name: "parallel extended"
+            command: "./bashunit --parallel tests/"
+          - name: "strict"
+            command: "./bashunit --parallel --simple --strict tests/"
     steps:
       - name: Checkout
         uses: actions/checkout@v4
@@ -21,7 +45,7 @@ jobs:
         run: cp .env.example .env
 
       - name: Run Tests
-        run: make test
+        run: ${{ matrix.command }}
 
   localized-ubuntu:
     name: "Ubuntu - ${{ matrix.name }} Locale"
@@ -82,29 +106,23 @@ jobs:
         run: make test
 
   windows:
-    name: "On windows (${{ matrix.name }})"
+    name: "Windows - ${{ matrix.name }}"
     timeout-minutes: 10
     runs-on: windows-latest
     strategy:
+      fail-fast: false
       matrix:
         include:
-          - name: "acceptance a-l"
-            test_path: "tests/acceptance/bashunit_[a-l]*_test.sh"
-          - name: "acceptance m-z"
-            test_path: "tests/acceptance/bashunit_[m-z]*_test.sh tests/acceptance/[i-p]*_test.sh"
-          - name: functional
+          - name: "functional"
             test_path: "tests/functional/*_test.sh"
           - name: "unit a-b"
             test_path: "tests/unit/[a-b]*_test.sh"
-          - name: "unit c"
-            test_path: "tests/unit/ch*_test.sh tests/unit/cl*_test.sh tests/unit/console*_test.sh tests/unit/cu*_test.sh"
-          - name: "unit coverage"
-            test_path: "tests/unit/coverage_*_test.sh"
+          - name: "unit c + coverage"
+            test_path: "tests/unit/ch*_test.sh tests/unit/cl*_test.sh tests/unit/console*_test.sh tests/unit/cu*_test.sh tests/unit/coverage_*_test.sh"
           - name: "unit d-p"
             test_path: "tests/unit/[d-p]*_test.sh"
           - name: "unit r-z"
             test_path: "tests/unit/[r-z]*_test.sh"
-      fail-fast: false
     steps:
       - name: Checkout code
         uses: actions/checkout@v4
@@ -117,67 +135,39 @@ jobs:
 
       - name: Run tests
         shell: bash
-        run: |
-          ./bashunit --parallel ${{ matrix.test_path }}
-
-  alpine:
-    name: "On alpine-latest"
-    runs-on: ubuntu-latest
-    timeout-minutes: 10
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-        with:
-          fetch-depth: 1
-
-      - name: Setup Config
-        run: cp .env.example .env
-
-      - name: Run Tests
-        run: |
-          docker run --rm -v "$(pwd)":/project alpine:latest /bin/sh -c " \
-            apk update && \
-            apk add --no-cache bash make git jq && \
-            adduser -D builder && \
-            chown -R builder /project && \
-            su - builder -c 'cd /project; make test';"
+        run: ./bashunit --parallel --jobs 4 ${{ matrix.test_path }}
 
-  simple-output:
-    name: "Simple output"
-    runs-on: ubuntu-latest
-    timeout-minutes: 10
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-        with:
-          fetch-depth: 1
-
-      - name: Setup Config
-        run: cp .env.example .env
-
-      - name: Run Tests
-        run: |
-          ./bashunit --simple tests/
-
-  simple-output-parallel:
-    name: "Simple output in parallel"
-    runs-on: ubuntu-latest
+  windows-acceptance:
+    name: "Windows acceptance - ${{ matrix.name }}"
+    if: github.event_name == 'push'
     timeout-minutes: 10
+    runs-on: windows-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - name: "a-e"
+            test_path: "tests/acceptance/bashunit_[a-e]*_test.sh"
+          - name: "f-l"
+            test_path: "tests/acceptance/bashunit_[f-l]*_test.sh"
+          - name: "m-z"
+            test_path: "tests/acceptance/bashunit_[m-z]*_test.sh tests/acceptance/[i-p]*_test.sh"
     steps:
-      - name: Checkout
+      - name: Checkout code
         uses: actions/checkout@v4
         with:
           fetch-depth: 1
 
       - name: Setup Config
+        shell: bash
         run: cp .env.example .env
 
-      - name: Run Tests
-        run: |
-          ./bashunit --parallel --simple tests/
+      - name: Run tests
+        shell: bash
+        run: ./bashunit --parallel --jobs 4 ${{ matrix.test_path }}
 
-  extended-output-parallel:
-    name: "Extended output in parallel"
+  alpine:
+    name: "Alpine - latest"
     runs-on: ubuntu-latest
     timeout-minutes: 10
     steps:
@@ -191,21 +181,9 @@ jobs:
 
       - name: Run Tests
         run: |
-          ./bashunit --parallel tests/
-
-  strict-mode:
-    name: "Strict mode"
-    runs-on: ubuntu-latest
-    timeout-minutes: 10
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-        with:
-          fetch-depth: 1
-
-      - name: Setup Config
-        run: cp .env.example .env
-
-      - name: Run Tests with strict mode
-        run: |
-          ./bashunit --parallel --simple --strict tests/
+          docker run --rm -v "$(pwd)":/project alpine:latest /bin/sh -c " \
+            apk update && \
+            apk add --no-cache bash make git jq && \
+            adduser -D builder && \
+            chown -R builder /project && \
+            su - builder -c 'cd /project; make test';"