more things

README.md

@@ -0,0 +1,4 @@
+# L1
+
+L1 is a load testing framework written in Go for Go.
+

examples/simple/main.go

@@ -8,16 +8,15 @@ import (
 
 func main() {
 	r, err := l1.NewRunner(
-		l1.WithTarget("http://google.com"),
-		l1.WithRunFunc(func(target string) error {
-			return nil
-		}),
+		l1.WithTarget("https://remoteukjobs.com"),
+		l1.WithRunFunc(l1.DefaultHTTPTester),
+		l1.WithMaxParrellConns(10),
+		l1.WithMaxConns(6000),
 	)
 	if err != nil {
 		log.Fatal(err)
 	}
-	err = r.Start()
-	if err != nil {
-		log.Fatal(err)
-	}
+	r.Execute()
+	results := r.Results()
+	results.Print()
 }

http.go

@@ -0,0 +1,29 @@
+package l1
+
+import (
+	"net/http"
+	"time"
+)
+
+func DefaultHTTPTester(target string) *Result {
+	result := &Result{}
+	client := http.Client{
+		Timeout: 30 * time.Second,
+	}
+
+	req, err := http.NewRequest(http.MethodGet, target, nil)
+	if err != nil {
+		result.Error = err
+		return result
+	}
+
+	startTime := time.Now()
+	rsp, err := client.Do(req)
+	if err != nil {
+		result.Error = err
+	}
+	result.CompletedIn = time.Since(startTime).Seconds()
+	result.StatusCode = rsp.StatusCode
+
+	return result
+}

l1.go

@@ -5,7 +5,7 @@ import (
 )
 
 // F defines the function type for runners.
-type F func(target string) error
+type F func(target string) *Result
 
 // Runner
 type Runner struct {
@@ -15,6 +15,7 @@ type Runner struct {
 	RunTime               time.Duration
 	RunFunc               F
 	Target                string
+	results               []*Result
 }
 
 func NewRunner(opts ...Opt) (*Runner, error) {
@@ -39,3 +40,25 @@ func NewRunner(opts ...Opt) (*Runner, error) {
 func (r *Runner) SetOpt(o Opt) {
 	o(r)
 }
+
+func (r *Runner) Execute() {
+	tasks := []*Task{}
+	for i := 0; i < r.MaxConnections; i++ {
+		tasks = append(tasks, &Task{Target: r.Target, F: r.RunFunc})
+	}
+	// create the pool and process the tasks.
+	pool := newPool(tasks, r.MaxParrellConnections)
+	// the tasks are updated in memory so we don't expect a return here.
+	pool.run()
+	for _, t := range tasks {
+		r.results = append(r.results, t.Result)
+	}
+}
+
+func (r *Runner) Results() *results {
+	res := &results{
+		Results: r.results,
+		Target:  r.Target,
+	}
+	return res
+}

pool.go

@@ -1,21 +1,54 @@
 package l1
 
 import (
-	"fmt"
+	"sync"
 )
 
-// Start starts the runner.
-func (r *Runner) Start() error {
-	jobChan := make(chan string, r.MaxParrellConnections)
-	// resultsChan := make(chan struct{})
-
-	for i := 0; i < r.MaxParrellConnections; i++ {
-		go func(jobChan chan string) {
-			for t := range jobChan {
-				r.RunFunc(t)
-			}
-		}(jobChan)
+type Task struct {
+	Target string
+	Result *Result
+	F      F
 }
 
-	return fmt.Errorf("unimplemented")
+type pool struct {
+	tasks       []*Task
+	concurrency int
+
+	tasksChan chan *Task
+	wg        sync.WaitGroup
+}
+
+func newPool(tasks []*Task, concurrency int) *pool {
+	return &pool{
+		tasks:       tasks,
+		concurrency: concurrency,
+		tasksChan:   make(chan *Task),
+	}
+}
+
+// run will run all work within the pool.
+func (p *pool) run() {
+	for i := 0; i < p.concurrency; i++ {
+		go p.work()
+	}
+
+	p.wg.Add(len(p.tasks))
+	for _, t := range p.tasks {
+		p.tasksChan <- t
+	}
+
+	close(p.tasksChan)
+
+	p.wg.Wait()
+}
+
+func (p *pool) work() {
+	for t := range p.tasksChan {
+		if t.F == nil {
+			continue
+		}
+		res := t.F(t.Target)
+		t.Result = res
+		p.wg.Done()
+	}
 }

results.go

@@ -1,26 +1,104 @@
 package l1
 
-type Results struct {
+import "fmt"
+
+type results struct {
 	Target  string
-	Count   int
-	Results []Result
+	Results []*Result
+
+	totalCompletedTime float64
+	successfulCount    int
+	errorCount         int
 }
 
 type Result struct {
 	// CompletedIn is in seconds
-	CompletedIn int
+	RunTime     int64
+	CompletedIn float64
 	Error       error
 	StatusCode  int
 }
 
-func (r *Results) RequestsPerMin() int {
-	totalCompletedIn := 0
+func (r *results) RequestPerSecond() float64 {
+	totalCompletedIn := float64(0)
 	for _, res := range r.Results {
+		if res.Error != nil {
+			continue
+		}
 		totalCompletedIn += res.CompletedIn
 	}
-	return totalCompletedIn / r.Count
+
+	return float64(len(r.Results)) / totalCompletedIn
 }
 
-func (r *Results) AvgCompletionTime() int {
-	return 0
+func (r *results) PeakResponseTime() {
+
+}
+
+func (r *results) ErrorCount() int {
+	if r.errorCount > 0 {
+		return r.errorCount
+	}
+	for _, res := range r.Results {
+		if res.Error == nil {
+			continue
+		}
+		r.errorCount++
+	}
+	return r.errorCount
+}
+
+func (r *results) SuccessfulCount() int {
+	if r.successfulCount > 0 {
+		return r.successfulCount
+	}
+	for _, res := range r.Results {
+		if res.Error != nil {
+			continue
+		}
+		r.successfulCount++
+	}
+	return r.successfulCount
+}
+
+func (r *results) AvgResponseTime() float64 {
+	totalCompletedIn := float64(0)
+
+	for _, res := range r.Results {
+		if res.Error != nil {
+			continue
+		}
+		totalCompletedIn += res.CompletedIn
+	}
+
+	return totalCompletedIn / float64(len(r.Results))
+}
+
+func (r *results) CompletedTime() float64 {
+	if r.totalCompletedTime > 0 {
+		return r.totalCompletedTime
+	}
+
+	for _, res := range r.Results {
+		if res.Error != nil {
+			continue
+		}
+		r.totalCompletedTime += res.CompletedIn
+	}
+	return r.totalCompletedTime
+}
+
+func (r *results) Print() {
+	fmt.Println("-----------------------------------------------------------")
+	fmt.Println("| L1 load tester.")
+	fmt.Println("| Default result printer.")
+	fmt.Println("-----------------------------------------------------------")
+	fmt.Println("")
+	fmt.Printf("Load testing %s\n", r.Target)
+	fmt.Println("")
+	fmt.Printf("Request per second: %.2f\n", r.RequestPerSecond())
+	fmt.Printf("Average response time: %.2f seconds\n", r.AvgResponseTime())
+	fmt.Printf("Success count: %d\n", r.SuccessfulCount())
+	fmt.Printf("Error count: %d\n", r.ErrorCount())
+	fmt.Println("")
 }

results_test.go

@@ -1,16 +0,0 @@
-package l1_test
-
-// func TestRequestsPerMin(t *testing.T) {
-// 	rs := l1.Results{
-// 		Count: 4,
-// 		Results: []l1.Result{
-// 			{CompletedIn: 10},
-// 			{CompletedIn: 10},
-// 			{CompletedIn: 10},
-// 			{CompletedIn: 10},
-// 		},
-// 	}
-
-// 	rpm := rs.RequestsPerMin()
-// 	log.Println(rpm)
-// }