blob: 14040fbd455fea35ea5f6619278d6ebc272ecb28 [file] [log] [blame]
// Copyright 2019 The Chromium OS Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
package camera
import (
func init() {
Func: GCAMultiCamera,
Desc: "Tests multi-camera (camera switching) function of GoogleCameraArc (GCA)",
Contacts: []string{"", ""},
Attr: []string{"group:mainline", "informational", "group:camera-libcamera"},
SoftwareDeps: []string{"chrome", caps.BuiltinOrVividCamera},
Data: []string{gca.Apk},
Pre: arc.Booted(),
Timeout: 4 * time.Minute,
Params: []testing.Param{{
ExtraSoftwareDeps: []string{"android_p"},
}, {
Name: "vm",
ExtraSoftwareDeps: []string{"android_vm"},
// GCAMultiCamera tests multi-camera (camera switching) function of GoogleCameraArc (GCA).
// This test switches GCA to the next camera multiple times and verifies that the default camera facing stays the same after restarting the app.
// Note that this test is intended for devices with more than one camera. On single-camera devices, the test would always pass since there's no other camera to switch to.
// Ideally we'd like to skip the test, but it's technically infeasible to add an autotest-capability for it. We cannot get the number of cameras statically due to several complications with camera/device configurations.
func GCAMultiCamera(ctx context.Context, s *testing.State) {
gca.RunTest(ctx, s, func(ctx context.Context, a *arc.ARC, d *ui.Device) {
// Get the default camera for verification later.
// TODO(lnishan): Get the input package to expose and generalize the functions for determining the device mode.
defaultFacing, err := gca.GetFacing(ctx, d)
if err != nil {
s.Fatal("Cannot get the default facing of camera: ", err)
s.Log("Default camera facing is: ", defaultFacing)
// numIterations is the number of times we want to switch the camera.
// We chose 7 because this is a reasonably adequate number to verify camera switching works correctly.
// 7 as a prime number also makes sense because it's not a multiple of the number of cameras on a device and thus the final camera we're on won't be the one we opened on startup.
const numIterations = 7
s.Logf("Testing camera switching (%d iterations)", numIterations)
// Switch to next camera for numIterations times.
for i := 0; i < numIterations; i++ {
if err := gca.SwitchCamera(ctx, d); err != nil {
s.Fatal("Failed to switch camera: ", err)
s.Log("Restarting app")
if err := gca.RestartApp(ctx, a, d); err != nil {
s.Fatal("Failed to restart GCA: ", err)
s.Log("Verifying the default camera facing remains the same")
if facing, err := gca.GetFacing(ctx, d); err != nil {
s.Fatal("Cannot get the direction of camera after restarting the app: ", err)
} else if facing != defaultFacing {
s.Fatalf("GCA didn't open a camera with the default facing (default: %s, GCA opened: %s)", defaultFacing, facing)