ci: added coverage to go lang tests

.github/workflows/prjob_tests.yml

@@ -38,5 +38,7 @@ jobs:
       - ubuntu-latest
     steps:
       - uses: actions/checkout@v2
+      - name: Install cover 
+        run: go get golang.org/x/tools/cmd/cover
       - name: Tests 
-        run: go test ./config ./auth ./db ./handlers ./routes ./utils 
+        run: go test ./config ./auth ./db ./handlers ./routes ./utils -race -v -coverprofile=coverage.out && ./cover-check.sh coverage.out 2.9

cover-check.sh

@@ -0,0 +1,14 @@
+#!/bin/sh
+
+# Ref:
+# - https://pretzelhands.com/posts/command-line-flags
+
+# Usage:
+# go test -race -v -coverprofile=coverage.out
+# ./cover-check.sh coverage.out 70
+
+
+PROFILE=$1
+THRESHOLD=$2
+COVERAGE=$(go tool cover -func=$PROFILE|grep total|awk '{print substr($3, 1, length($3) - 1)}')
+echo "$COVERAGE $THRESHOLD" | awk '{if (!($1 >= $2)) { print "Coverage: " $1 "%" ", Expected threshold: " $2 "%"; exit 1 } }'