Code coverage improvements

.github/codecov.yml

@@ -1,2 +1,29 @@
+comment: 
+  layout: "reach, diff, flags, files"
+  behavior: new
+  require_changes: false
 github_checks:
-    annotations: false
+    annotations: false
+coverage:
+  precision: 2
+  round: down
+  range: "70...100"
+  status:
+    project:
+      default:
+        target: 75%
+        threshold: 0%
+        if_ci_failed: error
+        if_not_found: failure
+    patch:
+      default:
+        target: 100%
+        threshold: 0%
+        if_ci_failed: error
+        if_not_found: failure
+    changes:
+      default:
+        target: 100%
+        threshold: 0%
+        if_ci_failed: error
+        if_not_found: failure

.github/workflows/ci.yml

@@ -1,7 +1,11 @@
 name: Workflow for Codecov
-on: [pull_request]
+on:
+  push:
+    branches: [master]
+  pull_request:
+    branches: [master]
 jobs:
-  run:
+  codecov-python-39:
     runs-on: windows-latest
     steps:
       - name: Checkout
@@ -16,5 +20,22 @@ jobs:
         run: |
           coverage run -m unittest discover -s src
           coverage xml
+      - name: Upload coverage to Codecov
+        uses: codecov/codecov-action@v2
+  codecov-python-27:
+    runs-on: windows-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+      - name: Set up Python 2.7
+        uses: actions/setup-python@v2
+        with:
+          python-version: 2.7
+      - name: Install dependencies
+        run: pip install coverage
+      - name: Run tests and collect coverage
+        run: |
+          coverage run -m unittest discover -s src
+          coverage xml
       - name: Upload coverage to Codecov
         uses: codecov/codecov-action@v2