chore: add coverage upload to Codecov (#781)

Author: philprime

Diff for: .github/workflows/build.yml

@@ -66,6 +66,15 @@ jobs:
         run: yarn install --frozen-lockfile
       - name: Run Unit Tests
         run: yarn test
+      - name: Push code coverage to codecov
+        uses: codecov/codecov-action@13ce06bfc6bbe3ecf90edbbf1bc32fe5978ca1d3 # [email protected]
+        with:
+          # Need to specify the token here, as the codecov action requires it for protected branches.
+          # If not set, this error is shown: `Token required because branch is protected`
+          token: ${{ secrets.CODECOV_TOKEN }}
+          # Do not fail the build if codecov fails to report the coverage.
+          fail_ci_if_error: false
+          flags: unit-tests
 
   job_e2e_test:
     name: ${{ matrix.wizard }} E2E Tests
@@ -101,3 +110,12 @@ 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/codecov-action@13ce06bfc6bbe3ecf90edbbf1bc32fe5978ca1d3 # [email protected]
+        with:
+          # Need to specify the token here, as the codecov action requires it for protected branches.
+          # If not set, this error is shown: `Token required because branch is protected`
+          token: ${{ secrets.CODECOV_TOKEN }}
+          # Do not fail the build if codecov fails to report the coverage.
+          fail_ci_if_error: false
+          flags: e2e-tests

Diff for: codecov.yml

@@ -0,0 +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:
+  # 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 

Diff for: e2e-tests/jest.config.ts

@@ -5,6 +5,7 @@ config({
 });
 
 export default {
+  collectCoverage: true,
   testTimeout: 360000,
   testEnvironment: 'node',
   testMatch: ['**/*.test.ts'],