Add code coverage reporting (#137)

* Add code coverage reporting

Signed-off-by: John Collier <jcollier@redhat.com>

* Update PR template

Signed-off-by: John Collier <jcollier@redhat.com>

* Remove incorrect license

Signed-off-by: John Collier <jcollier@redhat.com>

Signed-off-by: John Collier <jcollier@redhat.com>

.codecov.yaml

@@ -0,0 +1,40 @@
+# See http://docs.codecov.io/docs/coverage-configuration
+coverage:
+  precision: 2 # 2 = xx.xx%, 0 = xx%
+  round: down
+  # For example: 20...60 would result in any coverage less than 20%
+  # would have a red background. The color would gradually change to
+  # green approaching 60%. Any coverage over 60% would result in a
+  # solid green color.
+  range: "20...60"
+
+  status:
+    # project will give us the diff in the total code coverage between a commit
+    # and its parent
+    project: yes
+    # Patch gives just the coverage of the patch
+    patch: yes
+    # changes tells us if there are unexpected code coverage changes in other files
+    # which were not changed by the diff
+    changes: yes
+
+  # See http://docs.codecov.io/docs/ignoring-paths
+  ignore:
+    - "assets/*"
+    - "build/*"
+    - "deploy/*"
+    - "hack/*"
+    - "manifests/*"
+    - "openshift-ci/*"
+    - "vendor/*"
+    - "Makefile"
+    - ".travis.yml"
+
+# See http://docs.codecov.io/docs/pull-request-comments-1
+comment:
+  layout: "diff, files"
+  behavior: ""
+            # default = posts once then update, posts new if delete
+            # once = post once then updates
+            # new = delete old, post new
+            # spammy = post new

.github/PULL_REQUEST_TEMPLATE.md

@@ -8,7 +8,8 @@ Fixes #?
 
 **PR acceptance criteria**:
 
-- [ ] Test (WIP) 
+- [ ] Test Coverage 
+    - Are your changes sufficiently tested, and are any applicable test cases added or updated to cover your changes?
 
 Documentation (WIP)
 - [ ] Does the [REST API doc](../index/server/registry-REST-API.adoc) need to be updated with your changes?

.github/workflows/ci.yaml

@@ -39,14 +39,17 @@ jobs:
       run: cd index/server && ./build.sh
 
     - name: Test index server
-      run: cd index/server && go test ./...
+      run: cd index/server && go test ./... -coverprofile cover.out
 
     - name: Check if oci server build is working
       run: cd oci-registry && ./build.sh
 
     - name: Check if devfile-registry-integration build is working
       run: cd tests/integration && ./docker-build.sh
 
+    - name: Upload coverage to Codecov
+      uses: codecov/codecov-action@v2.1.0
+
   test_minikube:
     name: Test Devfile Registry
     runs-on: ubuntu-latest

.github/workflows/codecov.yaml

@@ -0,0 +1,21 @@
+name: Code Coverage Report
+on:
+  push:
+    branches:
+      - main
+jobs:
+  build-and-deploy:
+    runs-on: ubuntu-20.04
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2.3.1
+        with:
+          persist-credentials: false
+      - name: Set up Go 1.x
+        uses: actions/setup-go@v2
+        with:
+          go-version: 1.17
+      - name: Run tests
+        run: cd index/server && go test ./... -coverprofile cover.out
+      - name: Codecov
+        uses: codecov/codecov-action@v2.1.0