Merged in feature/unittests (pull request #9)

Feature/unittests

* addedmoretests

* easyquerytests

* fixotelinit

* preppedqueriestotestcontainer

* dbqueries

* splitintoqueryfiles

* covered the bases

cmd/queryService/main.go

@@ -4,7 +4,6 @@ import (
 	"context"
 	"log"
 	"net"
-	"os"
 	"queryorchestration/api/controllers"
 	serviceinterfaces "queryorchestration/api/serviceInterfaces"
 	"queryorchestration/internal/collector"
@@ -23,10 +22,10 @@ import (
 func main() {
 	ctx := context.Background()
 
-	closeTracer := otel.Init(ctx)
+	closeTracer := otel.New(ctx)
 	defer closeTracer()
 
-	database.RunMigrations(os.Getenv("PWD"))
+	database.RunMigrations(&database.MigrationConfig{})
 
 	host := "0.0.0.0"
 	port := 8080