tests for wait and post actions

pkg/cmd/post_action_test.go

@@ -0,0 +1,106 @@
+package cmd
+
+import (
+	"bytes"
+	"io/ioutil"
+	"os"
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func Test_postActionCmd(t *testing.T) {
+	cmd := NewRootCmd()
+
+	tmp := makeTempHostsFile(t, "postActionCmd")
+	defer os.Remove(tmp.Name())
+
+	t.Run("Wait and disable", func(t *testing.T) {
+		b := bytes.NewBufferString("")
+		args := []string{"enable", "profile1", "--host-file", tmp.Name(), "--wait", "10ms"}
+
+		cmd.SetOut(b)
+		cmd.SetArgs(args)
+
+		err := cmd.Execute()
+		assert.NoError(t, err)
+
+		out, _ := ioutil.ReadAll(b)
+		assert.Contains(t, string(out), "Waiting for 10ms or ctrl+c to disable from profile 'profile1'")
+	})
+
+	t.Run("Wait and disable on SIGTERM", func(t *testing.T) {
+		b := bytes.NewBufferString("")
+		args := []string{"enable", "profile1", "--host-file", tmp.Name(), "--wait", "0"}
+
+		cmd.SetOut(b)
+		cmd.SetArgs(args)
+
+		proc, err := os.FindProcess(os.Getpid())
+		assert.NoError(t, err)
+
+		go func() {
+			time.Sleep(10 * time.Millisecond)
+			err = proc.Signal(os.Interrupt)
+			assert.NoError(t, err)
+		}()
+
+		err = cmd.Execute()
+		assert.NoError(t, err)
+
+		out, _ := ioutil.ReadAll(b)
+		assert.Contains(t, string(out), "Waiting until ctrl+c to disable from profile 'profile1'")
+	})
+
+}
+
+func Test_waitSignalOrDuration(t *testing.T) {
+	t.Run("timeout", func(t *testing.T) {
+		d := 10 * time.Millisecond
+		done := waitSignalOrDuration(d)
+		v, ok := <-done
+		assert.Equal(t, v, struct{}{})
+		assert.Equal(t, ok, true)
+	})
+
+	t.Run("timeout abs", func(t *testing.T) {
+		d := -10 * time.Millisecond
+		done := waitSignalOrDuration(d)
+		v, ok := <-done
+		assert.Equal(t, v, struct{}{})
+		assert.Equal(t, ok, true)
+	})
+
+	t.Run("SIGINT", func(t *testing.T) {
+		proc, err := os.FindProcess(os.Getpid())
+		assert.NoError(t, err)
+
+		d := 1 * time.Hour
+		done := waitSignalOrDuration(d)
+
+		time.Sleep(10 * time.Millisecond)
+		err = proc.Signal(os.Interrupt)
+		assert.NoError(t, err)
+
+		v, ok := <-done
+		assert.Equal(t, v, struct{}{})
+		assert.Equal(t, ok, true)
+	})
+
+	t.Run("Wait forever", func(t *testing.T) {
+		proc, err := os.FindProcess(os.Getpid())
+		assert.NoError(t, err)
+
+		done := waitSignalOrDuration(0)
+
+		time.Sleep(10 * time.Millisecond)
+		err = proc.Signal(os.Interrupt)
+		assert.NoError(t, err)
+
+		v, ok := <-done
+		assert.Equal(t, v, struct{}{})
+		assert.Equal(t, ok, true)
+	})
+
+}