New provider: Loopia DNS service provider (#2140)

Co-authored-by: Tom Limoncelli <tlimoncelli@stackoverflow.com>

providers/loopia/convert_test.go

@@ -0,0 +1,51 @@
+package loopia
+
+import (
+	"reflect"
+	"testing"
+
+	"github.com/StackExchange/dnscontrol/v3/models"
+)
+
+func TestRecordToNative_1(t *testing.T) {
+
+	rc := &models.RecordConfig{
+		TTL: 3600,
+	}
+	rc.SetLabel("foo", "example.com")
+	rc.SetTarget("1.2.3.4")
+	rc.Type = "A"
+
+	ns := recordToNative(rc, 0)
+
+	nst := reflect.TypeOf(ns).Kind()
+	if nst != reflect.TypeOf(paramStruct{}).Kind() {
+		t.Errorf("recordToNative produced unexpected type")
+	}
+}
+
+func TestNativeToRecord_1(t *testing.T) {
+
+	zrec := zRec{}
+	zrec.Type = "A"
+	zrec.TTL = 300
+	zrec.Rdata = "1.2.3.4"
+	zrec.Priority = 0
+	zrec.RecordID = 0
+
+	rc, err := nativeToRecord(zrec.SetZR(), "example.com", "www")
+
+	if rc.Type != "A" {
+		t.Errorf("nativeToRecord produced unexpected type")
+	} else if rc.TTL != 300 {
+		t.Errorf("nativeToRecord produced unexpected TTL")
+	} else if rc.GetTargetCombined() != "1.2.3.4" {
+		t.Errorf("nativeToRecord produced unexpected Rdata")
+	} else if rc.SrvPriority != 0 {
+		t.Errorf("nativeToRecord produced unexpected Priority")
+	}
+
+	if err != nil {
+		t.Errorf("nativeToRecord error")
+	}
+}