Add health check for DNS

core/dns_test.go

@@ -0,0 +1,26 @@
+package core
+
+import (
+	"testing"
+)
+
+func TestIntegrationQuery(t *testing.T) {
+	dns := DNS{
+		QueryType: "A",
+		QueryName: "example.com",
+	}
+	result := &Result{}
+	dns.validateAndSetDefault()
+	dns.query("8.8.8.8", result)
+	if len(result.Errors) != 0 {
+		t.Errorf("there should be no error Errors:%v", result.Errors)
+	}
+
+	if result.DNSRCode != "NOERROR" {
+		t.Errorf("DNSRCode '%s' should have been NOERROR", result.DNSRCode)
+	}
+
+	if string(result.Body) != "93.184.216.34" {
+		t.Errorf("expected result %s", "93.184.216.34")
+	}
+}