nesting will have to wait :'(

.github/workflows/ci.yaml

@@ -16,22 +16,56 @@ on:
       - "*.txt"
 
 jobs:
-  test-with-otio:
+  test-otio-0130:
     env:
       plugin_name: "mlt_xml"
 
-    name: "Test in OpenTimelineIO"
+    name: "OpenTimelineIO 0.13.0"
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [2.7, 3.7, 3.8]
-        otio-versions: [0.12.1, 0.13.0]
+        python-version: [ 2.7, 3.7, 3.8 ]
 
     steps:
-    - name: Setup otio version
-      with:
-        otio-version: ${{ matrix.otio-version }}
+      - uses: actions/checkout@v2
+
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python-version }}
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install flake8 pytest pytest-cov -V OpenTimelineIO==0.13.0
+
+      - name: Install Plugin
+        run: |
+          pip install -e .
 
+      - name: Lint with flake8
+        run: |
+          flake8 --show-source --statistics
+
+      - name: Test with pytest
+        run: |
+          pytest
+
+      - name: Check registration of plugin
+        run: |
+          [[ ! -z $(otiopluginfo mlt_xml | grep ${{ env.plugin_name }}) ]]
+
+  test-otio-0121:
+    env:
+      plugin_name: "mlt_xml"
+
+    name: "OpenTimelineIO 0.12.1"
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: [2.7, 3.7, 3.8]
+
+    steps:
     - uses: actions/checkout@v2
 
     - name: Set up Python ${{ matrix.python-version }}
@@ -42,7 +76,7 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        pip install flake8 pytest pytest-cov -V OpenTimelineIO==${{ matrix.otio-version }}
+        pip install flake8 pytest pytest-cov -V OpenTimelineIO==0.12.1
 
     - name: Install Plugin
       run: |