bump(*): kubernetes release-1.16.0 dependencies

vendor/github.com/modern-go/concurrent/unbounded_executor_test.go

@@ -0,0 +1,54 @@
+package concurrent_test
+
+import (
+	"context"
+	"fmt"
+	"time"
+	"github.com/modern-go/concurrent"
+)
+
+func ExampleUnboundedExecutor_Go() {
+	executor := concurrent.NewUnboundedExecutor()
+	executor.Go(func(ctx context.Context) {
+		fmt.Println("abc")
+	})
+	time.Sleep(time.Second)
+	// output: abc
+}
+
+func ExampleUnboundedExecutor_StopAndWaitForever() {
+	executor := concurrent.NewUnboundedExecutor()
+	executor.Go(func(ctx context.Context) {
+		everyMillisecond := time.NewTicker(time.Millisecond)
+		for {
+			select {
+			case <-ctx.Done():
+				fmt.Println("goroutine exited")
+				return
+			case <-everyMillisecond.C:
+				// do something
+			}
+		}
+	})
+	time.Sleep(time.Second)
+	executor.StopAndWaitForever()
+	fmt.Println("executor stopped")
+	// output:
+	// goroutine exited
+	// executor stopped
+}
+
+func ExampleUnboundedExecutor_Go_panic() {
+	concurrent.HandlePanic = func(recovered interface{}, funcName string) {
+		fmt.Println(funcName)
+	}
+	executor := concurrent.NewUnboundedExecutor()
+	executor.Go(willPanic)
+	time.Sleep(time.Second)
+	// output:
+	// github.com/modern-go/concurrent_test.willPanic
+}
+
+func willPanic(ctx context.Context) {
+	panic("!!!")
+}