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timewheel_test.go
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timewheel_test.go
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// Copyright 2021 The baidu Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package timewheel
import (
"testing"
"time"
convey "github.com/smartystreets/goconvey/convey"
)
// TestTimeWheelCreateFaile test on create a new TimeWheel failed case
func TestTimeWheelCreateFaile(t *testing.T) {
// to test with the case of New time wheel with error input parameters
convey.Convey("New timewheel with error parameter", t, func() {
convey.Convey("invalid slot number", func() {
timewheel, err := New[string](100*time.Millisecond, 0)
convey.So(timewheel, convey.ShouldBeNil)
convey.So(err, convey.ShouldNotBeNil)
})
convey.Convey("invalid interval", func() {
timewheel, err := New[string](time.Duration(-1), 10)
convey.So(timewheel, convey.ShouldBeNil)
convey.So(err, convey.ShouldNotBeNil)
})
})
}
// TestTimeWheelCreate test to create a new TimeWheel instance
func TestTimeWheelCreate(t *testing.T) {
convey.Convey("New time wheel success", t, func() {
var slotNum uint16 = 16
var interval time.Duration = 100 * time.Millisecond
timewheel, err := New[string](interval, slotNum)
convey.So(timewheel, convey.ShouldNotBeNil)
convey.So(err, convey.ShouldBeNil)
convey.So(timewheel.slotNum, convey.ShouldEqual, slotNum)
convey.So(timewheel.interval, convey.ShouldEqual, interval)
convey.So(timewheel.ticker, convey.ShouldBeNil)
})
}
// TestTimeWheelStartAndTasks test add tasks after start
func TestTimeWheelStartAndTasks(t *testing.T) {
convey.Convey("New time wheel success and start", t, func() {
var slotNum uint16 = 16
var interval time.Duration = 100 * time.Millisecond
timewheel, err := New[map[string]int](interval, slotNum)
timewheel.Start()
defer timewheel.Stop()
convey.So(timewheel, convey.ShouldNotBeNil)
convey.So(err, convey.ShouldBeNil)
convey.So(timewheel.ticker, convey.ShouldNotBeNil)
convey.Convey("add time task with error parameter", func() {
delay := time.Duration(0) // case with delay = 0
tt := newTask(delay, t)
tid, err := timewheel.AddTask(delay, *tt)
convey.So(err, convey.ShouldNotBeNil)
convey.So(tid, convey.ShouldEqual, 0)
delay = interval / 2 // case with delay smaller than interval
tid, err = timewheel.AddTask(delay, *tt)
convey.So(err, convey.ShouldNotBeNil)
convey.So(tid, convey.ShouldEqual, 0)
})
var tid taskid = 1
convey.Convey("add a time task", func() {
// test add task and timeout
delay := 1 * time.Second
tt := newTask(delay, t)
tid, err := timewheel.AddTask(delay, *tt)
convey.So(tid, convey.ShouldEqual, tid)
convey.So(err, convey.ShouldBeNil)
convey.So(timewheel.currentTaskID, convey.ShouldEqual, tid+1)
exsit := timewheel.HasTask(tid)
convey.So(exsit, convey.ShouldBeTrue)
time.Sleep(2 * time.Second)
exsit = timewheel.HasTask(tid)
convey.So(exsit, convey.ShouldBeFalse)
})
convey.Convey("remove a time task", func() {
// remove time out task
timewheel.removeTask(tid)
})
convey.Convey("add a time task again", func() {
// test add task and timeout
delay := 1 * time.Second
tt := &Task[map[string]int]{
Data: map[string]int{"uid": 105626, "age": 100}, // call back data
TimeoutCallback: func(task Task[map[string]int]) { // call back function on time out
if task.Elasped() < delay {
t.Error("time out value is errored it should be large than specified time out.")
}
}}
tid2, err := timewheel.AddTask(delay*2*time.Duration(slotNum), *tt)
convey.So(tid, convey.ShouldEqual, tid2)
convey.So(err, convey.ShouldBeNil)
convey.So(timewheel.currentTaskID, convey.ShouldEqual, tid+1)
time.Sleep(2 * time.Second)
timewheel.RemoveTask(tid) // remove task id which it exsited
})
})
}
func newTask(delay time.Duration, t *testing.T) *Task[map[string]int] {
tt := &Task[map[string]int]{
Data: map[string]int{"uid": 105626, "age": 100}, // call back data
TimeoutCallback: func(task Task[map[string]int]) { // call back function on time out
if task.Elasped() < delay { // check elasped time should small than delay
t.Error("time out value is errored it should be large than specified time out.")
}
}}
return tt
}
// TestTimeWheelExceed1CircleCase to test time wheel task exceed 1 circle case
func TestTimeWheelExceed1CircleCase(t *testing.T) {
convey.Convey("test time wheel exceed circle case", t, func() {
var slotNum uint16 = 16
var interval time.Duration = 100 * time.Millisecond
timewheel, err := New[map[string]int](interval, slotNum)
timewheel.Start()
defer timewheel.Stop()
convey.So(timewheel, convey.ShouldNotBeNil)
convey.So(err, convey.ShouldBeNil)
convey.Convey("add a task", func() {
delay := 1 * time.Second
tt := &Task[map[string]int]{
Data: map[string]int{"uid": 105626, "age": 100}, // call back data
TimeoutCallback: func(task Task[map[string]int]) { // call back function on time out
if task.Delay() != delay {
t.Error("time delay value should be ", delay, " but actually is ", task.Delay())
}
if task.Elasped() < delay {
t.Error("time out value is errored it should be large than specified time out.")
}
}}
tid, err := timewheel.AddTask(delay, *tt)
convey.So(err, convey.ShouldBeNil)
time.Sleep(2 * time.Second)
exist := timewheel.HasTask(tid)
if exist {
t.Errorf("task id '%d' should not exist", tid)
}
})
})
var slotNum uint16 = 2
timewheel, err := New[string](100*time.Millisecond, slotNum)
if err != nil {
t.Error(err)
}
timewheel.Start()
}