CI: Make the downstream enterprise test a check instead of comments (#59071)

pkg/build/git/git_test.go

@@ -0,0 +1,25 @@
+package git_test
+
+import (
+	"testing"
+
+	"github.com/grafana/grafana/pkg/build/git"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestPRCheckRegexp(t *testing.T) {
+	var (
+		shouldMatch    = []string{"pr-check-1/branch-name", "pr-check-111/branch/name", "pr-check-102930122/branch-name"}
+		shouldNotMatch = []string{"pr-check-a/branch", "km/test", "test", "pr-check", "pr-check/test", "price"}
+	)
+
+	regex := git.PRCheckRegexp()
+
+	for _, v := range shouldMatch {
+		assert.Truef(t, regex.MatchString(v), "regex should match %s", v)
+	}
+
+	for _, v := range shouldNotMatch {
+		assert.False(t, regex.MatchString(v), "regex should not match %s", v)
+	}
+}