commit | 80c14ae293f77ac6c3136ba5921df4fd65acd3b6 | [log] [tgz] |
---|---|---|
author | Anton Hansson <hansson@google.com> | Wed May 26 20:36:11 2021 +0100 |
committer | Anton Hansson <hansson@google.com> | Wed May 26 20:58:22 2021 +0100 |
tree | 8cec22ff2d57ac174d54cb6e708d9a06e1374ebe | |
parent | 1c846aafae419561cb62f8e592ead0068b88af25 [diff] |
Improve error message for failing tests Include some information from the test app when the host test fails, and tell users what to grep for to see the full error. Example output: [3/4] com.android.tests.apex.sdkextensions.SdkExtensionsHostTest#upgradeTwoApexes: FAILED (02m49.411s) STACKTRACE: java.lang.AssertionError: App error! Full stack trace in logcat (grep for SdkExtensionsE2E). java.lang.IllegalStateException: Accessed module method, but shouldn't be able to at com.android.tests.apex.sdkextensions.SdkExtensionsHostTest.getAppParsingError(SdkExtensionsHostTest.java:173) at com.android.tests.apex.sdkextensions.SdkExtensionsHostTest.broadcastForBoolean(SdkExtensionsHostTest.java:159) at com.android.tests.apex.sdkextensions.SdkExtensionsHostTest.assertVersion45(SdkExtensionsHostTest.java:185) at com.android.tests.apex.sdkextensions.SdkExtensionsHostTest.upgradeTwoApexes(SdkExtensionsHostTest.java:125) Bug: 180105615 Test: atest sdkextensions_e2e_tests Change-Id: Ie5d770427150410a47837fa7144afb58b80c42d0
SdkExtensions module is responsible for:
The module is packaged in an apex, com.android.sdkext
, and has several components:
bin/derive_classpath
: a native binary that runs early in the device boot process. It reads individual classpath configs files from the system and other modules, merges them, and defines the definition of *CLASSPATH environ variables.bin/derive_sdk
: native binary that runs early in the device boot process and reads metadata of other modules, to set system properties relating to the extension SDK (for instance build.version.extensions.r
).javalib/framework-sdkextension.jar
: this is a jar on the bootclasspath that exposes APIs to applications to query the extension SDK level.derive_sdk
is a program that reads metadata stored in other apex modules, in the form of binary protobuf files in subpath etc/sdkinfo.binarypb
inside each apex. The structure of this protobuf can be seen here. The exact steps for converting a set of metadata files to actual extension versions is likely to change over time, and should not be depended upon.
The module exposes a java class SdkExtensions
in the package android.os.ext
. The method getExtensionVersion(int)
can be used to read the version of a particular sdk extension, e.g. getExtensionVersion(Build.VERSION_CODES.R)
.
derive_classpath
service reads and merges individual config files in the /system/etc/classpaths/
and /apex/*/etc/classpaths
. Each config stores protobuf message from classpaths.proto
in a proto binary format. Exact merging algorithm that determines the order of the classpath entries is described in derive_classpath.cpp
and may change over time.
For every new Android SDK level a new extension version should be defined. These are the steps necessary to do that:
derive_sdk.cpp
by:GetSdkLevel
with the new enum setderive_sdk_test.cpp
verifying the new extensions worksSdkExtensions.getExtensionVersion
API support the new extensions.RollbackManagerServiceImpl#getExtensionVersions
to account for the new extension version.