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// Copyright (c) 2014-2015 The Notify Authors. All rights reserved.
// Use of this source code is governed by the MIT license that can be
// found in the LICENSE file.
package notify
import (
"fmt"
"reflect"
"testing"
)
func call(wp watchpoint, fn interface{}, args []interface{}) eventDiff {
vals := []reflect.Value{reflect.ValueOf(wp)}
for _, arg := range args {
vals = append(vals, reflect.ValueOf(arg))
}
res := reflect.ValueOf(fn).Call(vals)
if n := len(res); n != 1 {
panic(fmt.Sprintf("unexpected len(res)=%d", n))
}
diff, ok := res[0].Interface().(eventDiff)
if !ok {
panic(fmt.Sprintf("want typeof(diff)=EventDiff; got %T", res[0].Interface()))
}
return diff
}
func TestWatchpoint(t *testing.T) {
ch := NewChans(5)
all := All | recursive
cases := [...]struct {
fn interface{}
args []interface{}
diff eventDiff
total Event
}{
// i=0
{
watchpoint.Add,
[]interface{}{ch[0], Remove},
eventDiff{0, Remove},
Remove,
},
// i=1
{
watchpoint.Add,
[]interface{}{ch[1], Create | Remove | recursive},
eventDiff{Remove, Remove | Create},
Create | Remove | recursive,
},
// i=2
{
watchpoint.Add,
[]interface{}{ch[2], Create | Rename},
eventDiff{Create | Remove, Create | Remove | Rename},
Create | Remove | Rename | recursive,
},
// i=3
{
watchpoint.Add,
[]interface{}{ch[0], Write | recursive},
eventDiff{Create | Remove | Rename, Create | Remove | Rename | Write},
Create | Remove | Rename | Write | recursive,
},
// i=4
{
watchpoint.Add,
[]interface{}{ch[2], Remove | recursive},
none,
Create | Remove | Rename | Write | recursive,
},
// i=5
{
watchpoint.Del,
[]interface{}{ch[0], all},
eventDiff{Create | Remove | Rename | Write, Create | Remove | Rename},
Create | Remove | Rename | recursive,
},
// i=6
{
watchpoint.Del,
[]interface{}{ch[2], all},
eventDiff{Create | Remove | Rename, Create | Remove},
Create | Remove | recursive,
},
// i=7
{
watchpoint.Add,
[]interface{}{ch[3], Create | Remove},
none,
Create | Remove | recursive,
},
// i=8
{
watchpoint.Del,
[]interface{}{ch[1], all},
none,
Create | Remove,
},
// i=9
{
watchpoint.Add,
[]interface{}{ch[3], recursive | Write},
eventDiff{Create | Remove, Create | Remove | Write},
Create | Remove | Write | recursive,
},
// i=10
{
watchpoint.Del,
[]interface{}{ch[3], Create},
eventDiff{Create | Remove | Write, Remove | Write},
Remove | Write | recursive,
},
// i=11
{
watchpoint.Add,
[]interface{}{ch[3], Create | Rename},
eventDiff{Remove | Write, Create | Remove | Rename | Write},
Create | Remove | Rename | Write | recursive,
},
// i=12
{
watchpoint.Add,
[]interface{}{ch[2], Remove | Write},
none,
Create | Remove | Rename | Write | recursive,
},
// i=13
{
watchpoint.Del,
[]interface{}{ch[3], Create | Remove | Write},
eventDiff{Create | Remove | Rename | Write, Remove | Rename | Write},
Remove | Rename | Write | recursive,
},
// i=14
{
watchpoint.Del,
[]interface{}{ch[2], Remove},
eventDiff{Remove | Rename | Write, Rename | Write},
Rename | Write | recursive,
},
// i=15
{
watchpoint.Del,
[]interface{}{ch[3], Rename | recursive},
eventDiff{Rename | Write, Write},
Write,
},
}
wp := watchpoint{}
for i, cas := range cases {
if diff := call(wp, cas.fn, cas.args); diff != cas.diff {
t.Errorf("want diff=%v; got %v (i=%d)", cas.diff, diff, i)
continue
}
if total := wp[nil]; total != cas.total {
t.Errorf("want total=%v; got %v (i=%d)", cas.total, total, i)
continue
}
}
}
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