CTS问题分析6

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遇到一个android P相关的问题,和原来CTS/GTS 问题分析1的表现是一样的,但是将 这个修复cp过来,发现不生效,仍然报错,因此记录一下

问题初探

测试命令: run gts -m GtsGmscoreHostTestCases -t com.google.android.gts.devicepolicy.managedprovisioning.DeviceOwnerProvisioningHostsideTest#testRequiredAppsInManagedDevice

报错堆栈:

09-28 13:54:41 W/XtsHostTestBase: java.lang.AssertionError: Should have at least one packages to handle Intent { act=android.intent.action.MAIN cat=[android.intent.category.HOME] }, found []
Expected: a value greater than <0>
but: <0> was equal to <0>
at org.hamcrest.MatcherAssert.assertThat(MatcherAssert.java:18)
at com.google.android.gts.managedprovisioning.AfwRequiredAppsTest.assertAndGetPackagesHandleIntent(AfwRequiredAppsTest.java:450)
at com.google.android.gts.managedprovisioning.AfwRequiredAppsTest.assertRequiredAppsInDeviceOwnerOrManagedUser(AfwRequiredAppsTest.java:490)
at com.google.android.gts.managedprovisioning.AfwRequiredAppsTest.assertRequiredAppsInDeviceOwner(AfwRequiredAppsTest.java:474)
at com.google.android.gts.managedprovisioning.AfwRequiredAppsTest.testRequiredApps_DeviceOwner_withGms(AfwRequiredAppsTest.java:124)
at java.lang.reflect.Method.invoke(Native Method)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:52)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:148)
at org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:142)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.lang.Thread.run(Thread.java:764)

上面还有:

09-28 01:54:32.486 18930 18956 D ManagedProvisioning: Deleting package [com.mi.android.globallauncher] as user 0

问题分析

可见,E10这个机器自定义的桌面被删掉了,导致case fail。在OverlayPackagesProvider.java中调试一下,结果如下:

 
技术图片
OverlayPackage.png

可见我们得到的是vendor/google/products/gms_overlay下面的资源,那么首先怀疑的是不是和上面链接的一样,overlay顺序问题导致资源加载不正确?

那么我们在本地加log看一下:

在build/core/package_internal.mk中添加log

ifdef enforce_rro_enabled
ifneq ($(PRODUCT_ENFORCE_RRO_EXCLUDED_OVERLAYS),)
static_only_resource_overlays := $(filter $(addsuffix %,$(PRODUCT_ENFORCE_RRO_EXCLUDED_OVERLAYS)),$(package_resource_overlays))
ifneq ($(static_only_resource_overlays),)
package_resource_overlays := $(filter-out $(static_only_resource_overlays),$(package_resource_overlays))
LOCAL_RESOURCE_DIR := $(static_only_resource_overlays) $(LOCAL_RESOURCE_DIR)
ifeq ($(package_resource_overlays),)
enforce_rro_enabled :=
endif
endif
endif
else
LOCAL_RESOURCE_DIR := $(package_resource_overlays) $(LOCAL_RESOURCE_DIR)
$(warning ------>a1)
$(warning ------>$(LOCAL_RESOURCE_DIR))
$(warning ------>a2)
endif

注意这个log不是在lunch时出现的,而是在packages/apps/ManagedProvisioning这里编译时出现的

国内版log

build/make/core/package_internal.mk:136: warning: ------>a1
build/make/core/package_internal.mk:137: warning: ------>miui/config-overlay/v6/common/packages/apps/ManagedProvisioning/res packages/apps/ManagedProvisioning/res
build/make/core/package_internal.mk:138: warning: ------>a2

国际版

在根目录执行deploy

Deploy menu... pick a combo:
1. cn
2. cn_chinaunicom
3. cn_chinatelecom
4. cn_chinamobile
5. cn_cta
6. cn_chinamobile-cta
7. global

Which would you like? [cn] 7
global

============================================
MIUI_CURRENT_CUST_VARIANT=global
============================================

重新回到packages/apps/ManagedProvisioning进行mm

build/make/core/package_internal.mk:136: warning: ------>a1
build/make/core/package_internal.mk:137: warning: ------>miui/config-overlay/v6/global/packages/apps/ManagedProvisioning/res miui/config-overlay/v6/common/packages/apps/ManagedProvisioning/res packages/apps/ManagedProvisioning/res
build/make/core/package_internal.mk:138: warning: ------>a2

看着overlay的顺序完全正确,为了再确定下,我们用Android Studio看一下ManagedProvisioning.apk的资源,发现:

 
技术图片
ManagedProvisioning资源.png

果然,资源已经顺利被aapt打包到相应apk里面了,前面的怀疑是错的,和原来不是一个问题。

那么剩下的还有两个怀疑点,1. apk的逻辑有问题或改动 2.资源加载出错;我们调试的时候发现加载的资源id是

 
技术图片
ManagedProvisioning资源id.png

和上面的id对不上,那么肯定是资源就没加载对。然后突然想到,我调试的时候attach的是system_process进程,那么会不会加载的是framework的资源呢,查看framework-res.apk,果然:

 
技术图片
framework-res资源id.png

id对上了。那么可以肯定,是逻辑更改造成的问题

逻辑更改

http://cisys.pt.miui.com/opengrok/xref/v10-p-dipper-dev/packages/apps/ManagedProvisioning/src/com/android/managedprovisioning/task/nonrequiredapps/NonRequiredAppsLogic.java#120

99    public Set<String> getSystemAppsToRemove(int userId) {
100        if (!shouldDeleteSystemApps(userId)) {
101            return Collections.emptySet();
102        }
103
104        // Start with all system apps
105        Set<String> newSystemApps = mUtils.getCurrentSystemApps(mIPackageManager, userId);
106
107        // Remove the ones that were already present in the last snapshot only when OTA
108        if (!mNewProfile) {
109            newSystemApps.removeAll(mSnapshot.getSnapshot(userId));
110        }
111        ComponentName deviceAdminComponentName;
112        try {
113            deviceAdminComponentName = mParams.inferDeviceAdminComponentName(
114                    mUtils, mContext, userId);
115        } catch (IllegalProvisioningArgumentException ex) {
116            // Should not happen
117            throw new RuntimeException("Failed to infer device admin component name", ex);
118        }
119        // Get the packages from the black/white lists
120        Set<String> packagesToDelete = mDevicePolicyManager.getDisallowedSystemApps(
121                deviceAdminComponentName, userId, mParams.provisioningAction);
122
123        // Retain only new system apps
124        packagesToDelete.retainAll(newSystemApps);
125
126        return packagesToDelete;
127    }
70    /**
71     * Computes non-required apps. All the system apps with a launcher that are not in
72     * the required set of packages will be considered as non-required apps.
73     *
74     * Note: If an app is mistakenly listed as both required and disallowed, it will be treated as
75     * disallowed.
76     *
77     * @param admin              Which {@link DeviceAdminReceiver} this request is associated with.
78     * @param userId             The userId for which the non-required apps needs to be computed.
79     * @param provisioningAction action indicating type of provisioning, should be one of
80     *                           {@link ACTION_PROVISION_MANAGED_DEVICE}, {@link
81     *                           ACTION_PROVISION_MANAGED_PROFILE} or
82     *                           {@link ACTION_PROVISION_MANAGED_USER}.
83     * @return the set of non-required apps.
84     */
85    @NonNull
86    public Set<String> getNonRequiredApps(@NonNull ComponentName admin, int userId,
87            @NonNull String provisioningAction) {
88        final Set<String> nonRequiredApps = getLaunchableApps(userId);
89        // Newly installed system apps are uninstalled when they are not required and are either
90        // disallowed or have a launcher icon.
91        nonRequiredApps.removeAll(getRequiredApps(provisioningAction, admin.getPackageName()));
92        // Don‘t delete the system input method packages in case of Device owner provisioning.
93        if (ACTION_PROVISION_MANAGED_DEVICE.equals(provisioningAction)
94                || ACTION_PROVISION_MANAGED_USER.equals(provisioningAction)) {
95            nonRequiredApps.removeAll(getSystemInputMethods());
96        }
97        nonRequiredApps.addAll(getDisallowedApps(provisioningAction));
98        return nonRequiredApps;
99    }
195    private Set<String> getVendorRequiredAppsSet(String provisioningAction) {
196        final int resId;
197        switch (provisioningAction) {
198            case ACTION_PROVISION_MANAGED_USER:
199                resId = R.array.vendor_required_apps_managed_user;
200                break;
201            case ACTION_PROVISION_MANAGED_PROFILE:
202                resId = R.array.vendor_required_apps_managed_profile;
203                break;
204            case ACTION_PROVISION_MANAGED_DEVICE:
205                resId = R.array.vendor_required_apps_managed_device;
206                break;
207            default:
208                throw new IllegalArgumentException("Provisioning type "
209                        + provisioningAction + " not supported.");
210        }
211        return new ArraySet<>(Arrays.asList(mContext.getResources().getStringArray(resId)));
212    }

可见,ManagedProvisioning将这部分逻辑放到了framework中,所以取的是framework的资源;

总结

ManagedProvisioning.apk也会随着大版本升级改动,我们进行CTS测试时需要注意这一点,尤其是其越来越与framework依赖时,我们要注意观察以往的overlay逻辑是否适用

作者:weiinter105 链接:https://www.jianshu.com/p/a6065587ce43 來源:简书 简书著作权归作者所有,任何形式的转载都请联系作者获得授权并注明出处。

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