package errs

import (
	"context"
	"errors"
	"testing"
)

func TestAppErrorIsAndWith(t *testing.T) {
	err := ErrNotFound.WithMsg("user gone").WithInnerMsg("uid=9")
	if !errors.Is(err, ErrNotFound) {
		t.Fatal("Is by code")
	}
	if errors.Is(err, ErrUnauthorized) {
		t.Fatal("different code")
	}
	if err.Msg != "user gone" || ErrNotFound.Msg == "user gone" {
		t.Fatal("WithMsg must copy")
	}
	code, msg, inner := err.CodeMsg()
	if code != "40401" || msg != "user gone" || inner != "uid=9" {
		t.Fatalf("CodeMsg %s %s %s", code, msg, inner)
	}
}

func TestFromRPCError(t *testing.T) {
	if FromRPCError("s", nil) != nil {
		t.Fatal("nil")
	}
	if got := FromRPCError("s", ErrBusy); !errors.Is(got, ErrBusy) {
		t.Fatal("passthrough")
	}
	if got := FromRPCError("user", context.DeadlineExceeded); !errors.Is(got, ErrTimeout) {
		t.Fatal("timeout")
	}
	if got := FromRPCError("user", errors.New("boom")); !errors.Is(got, ErrInner) {
		t.Fatal("inner")
	}
}