add codecov coverage upload

.github/workflows/build.yml

@@ -66,6 +66,12 @@ jobs:
         run: yarn install --frozen-lockfile
       - name: Run Unit Tests
         run: yarn test
+      - name: Push code coverage to codecov
+        uses: codecov/[email protected]
+        with:
+          # Do not fail the build if codecov fails to report the coverage.
+          fail_ci_if_error: false
+          flags: unittests
 
   job_e2e_test:
     name: ${{ matrix.wizard }} E2E Tests
@@ -101,3 +107,9 @@ jobs:
         run: yarn install --frozen-lockfile
       - name: Run End-to-End Tests
         run: yarn test:e2e ${{ matrix.wizard }}
+      - name: Push code coverage to codecov
+        uses: codecov/[email protected]
+        with:
+          # Do not fail the build if codecov fails to report the coverage.
+          fail_ci_if_error: false
+          flags: e2e-tests

codecov.yml

@@ -1,9 +1,15 @@
 # Reference: https://docs.codecov.com/docs/codecovyml-reference
 
 codecov:
+  # Codecov should wait for all other statuses to pass before sending its status.
   require_ci_to_pass: true
   notify:
+    # Codecov will wait for all CI statuses to complete before sending its status.
+    # Note: Codecov considers all non-codecov statuses to be CI statuses.
     wait_for_ci: true
 
 coverage:
-  range: 70...100 
+  # The coverage percentage that should be reached before the build is considered successful.
+  # Note: This is set to a low value, as the test coverage is not high yet.
+  #       When adding more test coverage, consider increasing this value.
+  range: 40...100