Add a test for app.Lifecycle

internal/app/lifecycle_test.go

@@ -0,0 +1,51 @@
+package app
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestLifecycle(t *testing.T) {
+	life := &Lifecycle{}
+
+	// Not setting anything should not panic.
+	assert.NotPanics(t, life.TriggerEnteredForeground)
+	assert.NotPanics(t, life.TriggerExitedForeground)
+	assert.NotPanics(t, life.TriggerStarted)
+	assert.NotPanics(t, life.TriggerStopped)
+
+	var entered, exited, start, stop, hookedStop bool
+	life.SetOnEnteredForeground(func() { entered = true })
+	life.TriggerEnteredForeground()
+	assert.True(t, entered)
+
+	life.SetOnExitedForeground(func() { exited = true })
+	life.TriggerExitedForeground()
+	assert.True(t, exited)
+
+	life.SetOnStarted(func() { start = true })
+	life.TriggerStarted()
+	assert.True(t, start)
+
+	life.SetOnStopped(func() { stop = true })
+	life.TriggerStopped()
+	assert.True(t, stop)
+
+	stop = false
+	life.SetOnStoppedHookExecuted(func() { hookedStop = true })
+	life.TriggerStopped()
+	assert.True(t, stop && hookedStop)
+
+	// Setting back to nil should not panic.
+	life.SetOnEnteredForeground(nil)
+	life.SetOnExitedForeground(nil)
+	life.SetOnStarted(nil)
+	life.SetOnStopped(nil)
+	life.SetOnStoppedHookExecuted(nil)
+
+	assert.NotPanics(t, life.TriggerEnteredForeground)
+	assert.NotPanics(t, life.TriggerExitedForeground)
+	assert.NotPanics(t, life.TriggerStarted)
+	assert.NotPanics(t, life.TriggerStopped)
+}