fix: add logging to test func, to try to debug php conformance errors (#187)

Author: akerekes

testdata/testfuncgo.go

@@ -2,8 +2,10 @@
 package function
 
 import (
+	"fmt"
 	"io/ioutil"
 	"net/http"
+	"os"
 )
 
 // HTTP is a simple HTTP function that writes the request body to the response body.
@@ -13,6 +15,11 @@ func HTTP(w http.ResponseWriter, r *http.Request) {
 		w.WriteHeader(http.StatusInternalServerError)
 		return
 	}
+	if curr_dir, err := os.Getwd(); err != nil {
+		fmt.Printf("Failed to get working directory: %s", err)
+	} else {
+		fmt.Printf("Writing output json to: %s", curr_dir)
+	}
 	if err := ioutil.WriteFile("function_output.json", body, 0644); err != nil {
 		w.WriteHeader(http.StatusInternalServerError)
 		return