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.github/workflows/perl.yml

+name: linux
+
+on:
+  push:
+    branches:
+      - '*'
+  pull_request:
+    branches:
+      - '*'
+
+jobs:
+  perl:
+
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        perl-version:
+          - '5.20'
+          - 'latest'
+          - 'threaded'
+
+    container:
+      image: perl:${{ matrix.perl-version }}
+
+    steps:
+      - uses: actions/checkout@v2
+      - name: perl -V
+        run: perl -V
+      - name: Install Dependencies
+        run: curl -sL https://git.io/cpm | perl - install -g --show-build-log-on-failure
+      - name: Run Tests
+        run: prove -l t

.travis.yml

-language: perl
-perl:
-  - "5.28"
-  - "5.26"
-  - "5.24"
-  - "5.22"

cpanfile

+requires 'Class::Accessor';
+requires 'Exception::Class';
+requires 'Getopt::Long';
+requires 'List::Util';
+requires 'LWP::UserAgent';
+requires 'XML::LibXML';
+
+on test => sub {
+	requires 'File::Slurp';
+	requires 'Test::Compile';
+	requires 'Test::Fatal';
+	requires 'Test::More';
+	requires 'Test::Pod';
+};