chore: add test coverage threshold

Signed-off-by: Dumbledore <mathenge@healthcloud.co.ke>

.github/workflows/ci.yml

@@ -132,3 +132,9 @@ jobs:
         env:
           COVERALLS_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         run: goveralls -coverprofile=coverage.out  -service=github
+
+      - name: Quality Gate - Test coverage shall be above threshold
+        env:
+            TESTCOVERAGE_THRESHOLD: 90
+        run: |
+          bash scripts/coverage.sh

scripts/coverage.sh

@@ -0,0 +1,12 @@
+#!/bin/bash
+echo "Quality Gate: checking test coverage is above threshold ..."
+echo "Threshold             : ${TESTCOVERAGE_THRESHOLD} %"
+totalCoverage=`go tool cover -func=coverage.out | grep total | grep -Eo '[0-9]+\.[0-9]+'`
+echo "Current test coverage : $totalCoverage %"
+if (( $(echo "$totalCoverage ${TESTCOVERAGE_THRESHOLD}" | awk '{print ($1 >= $2)}') )); then
+    echo "OK"
+else
+    echo "Current test coverage is below threshold. Please add more unit tests or adjust threshold to a lower value."
+    echo "Failed"
+    exit 1
+fi