Android: Add autotest to verify the content of an AAR target

This will build a multi-abi Android AAR target and verifies
its content using a customer target "verify_aar" by running
zipinfo on the AAR, and comparing its content with a subset
of files that are expected to be present in the package.

Task-number: QTBUG-125483
Change-Id: I19ad132bbad1a75c40b00de173ca09ad56500076
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>

tests/auto/cmake/CMakeLists.txt

@@ -146,6 +146,21 @@ if(QT_BUILD_MINIMAL_ANDROID_MULTI_ABI_TESTS AND NOT NO_GUI)
             "-DTEST_ESCAPING_VALUE_ARG=${escaping_value}"
             "-DTEST_SPACES_VALUE_ARG=${spaces_value}"
     )
+
+    #Run test_android_aar only if the host is Unix and zipinfo is available
+    find_program(ZIPINFO_EXECUTABLE zipinfo)
+    if(CMAKE_HOST_UNIX AND ZIPINFO_EXECUTABLE)
+        _qt_internal_test_expect_pass(test_android_aar
+            BUILD_OPTIONS
+                ${multi_abi_vars}
+                --build-target verify_aar
+        )
+    else()
+        message(WARNING
+            "Skipping test_android_aar CMake build test because \
+            the host is not Unix or zipinfo is not found")
+    endif()
+
     return()
 endif()
 

tests/auto/cmake/test_android_aar/CMakeLists.txt

@@ -0,0 +1,54 @@
+# Copyright (C) 2024 The Qt Company Ltd.
+# SPDX-License-Identifier: BSD-3-Clause
+
+cmake_minimum_required(VERSION 3.16)
+
+project(test_android_aar)
+
+find_package(Qt6 COMPONENTS Core Gui REQUIRED)
+
+qt6_add_executable(test_aar main.cpp)
+
+# To support opening the project in QtCreator
+if($CACHE{QT_USE_TARGET_ANDROID_BUILD_DIR})
+    set(TARGET_ANDROID_BUILD_DIR ${CMAKE_BINARY_DIR}/android-build-test_aar)
+else()
+    set(TARGET_ANDROID_BUILD_DIR ${CMAKE_BINARY_DIR}/android-build)
+endif()
+
+# Add common libs for available ABIs that should be present in the aar package in a list
+unset(aar_content_filepaths_to_verify)
+foreach(abi IN LISTS QT_ANDROID_ABIS)
+   list(APPEND aar_content_filepaths_to_verify "jni/${abi}/libQt6Core_${abi}.so")
+   list(APPEND aar_content_filepaths_to_verify "jni/${abi}/libQt6Gui_${abi}.so")
+   list(APPEND aar_content_filepaths_to_verify
+            "jni/${abi}/libplugins_platforms_qtforandroid_${abi}.so")
+   list(APPEND aar_content_filepaths_to_verify "jni/${abi}/libtest_aar_${abi}.so")
+endforeach()
+
+# Add a few ABI independent file that should be present in the aar package in a list
+list(APPEND aar_content_filepaths_to_verify "libs/Qt6Android.jar")
+list(APPEND aar_content_filepaths_to_verify "res/xml/qtprovider_paths.xml")
+list(APPEND aar_content_filepaths_to_verify "AndroidManifest.xml")
+list(JOIN aar_content_filepaths_to_verify "|"  grep_pattern)
+
+# The overall number of lines we should expect to be filtered by grep regex
+list(LENGTH aar_content_filepaths_to_verify expected_file_count)
+
+set(zipinfo_command "zipinfo -1 ${TARGET_ANDROID_BUILD_DIR}/test_aar.aar")
+
+# Runs zipinfo on the aar package, greps and outputs the number of matching lines
+# and finally compares the expected number of lines with the output
+add_custom_target(verify_aar
+    bash -c "${zipinfo_command} \
+    | grep -Ecx '${grep_pattern}' \
+    | grep -xq ${expected_file_count} \
+    || { echo 'Error: The aar package is missing at least one file.'; exit 1; };"
+    COMMENT "Verifying aar package content"
+    VERBATIM
+)
+
+# Build aar package before verification
+add_dependencies(verify_aar aar)
+
+target_link_libraries(test_aar PRIVATE Qt::Core Qt::Gui)

tests/auto/cmake/test_android_aar/main.cpp

@@ -0,0 +1,4 @@
+// Copyright (C) 2024 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
+
+int main(int, char *[]) { return 0; }