tests/EMMA_README

# This defines a shell function called run_emma_calp() that rebuilds
# the Calendar provider with EMMA coverage, executes the Calendar CTS
# tests, and generates results into ~/emmaReport/.  The previous emmaReport
# directory, if any, will be removed.
#
# This expects that ". build/envsetup.sh" and an appropriate "lunch"
# command have already been issued.
#
# Also, since we're doing this "the hard way", it's necessary to have
# /system/framework/emma.jar in BOOTCLASSPATH.  Basic steps:
# - edit system/core/rootdir/init.rc
# - insert "/system/framework/emma.jar" right before framework.jar
# - mmm -j8 external/emma
# - make -j8
# - adb reboot-bootloader
# - fastboot flashall
#
# This also defines a no_emma_calp() function that rebuilds the provider
# without emma.
#
# NOTE: interrupting execution may leave you in a different directory

function run_emma_calp()
{
    # rebuild provider with emma coverage
    _build_install_calp true
    if [ $? -ne 0 ]; then
        echo Build failed.
        return 1
    fi

    # run the CTS tests; note we can't get success/failure result in $?
    adb shell am instrument -w -e coverage true \
        -e class android.provider.cts.CalendarTest \
        -w 'com.android.cts.provider/android.provider.cts.CalendarTest\$CalendarEmmaTestRunner'

    # this path is hard-coded into the CalendarEmmaTestRunner
    output=/sdcard/calendar-provider.ec

    # extract and generate the report
    rm -rf ~/emmaReport
    mkdir ~/emmaReport
    pushd ~/emmaReport
    adb pull $output coverage.ec
    adb shell rm $output
    java -cp ${ANDROID_BUILD_TOP}/external/emma/lib/emma.jar \
        emma report -r html -in coverage.ec \
        -sp ${ANDROID_BUILD_TOP}/packages/providers/CalendarProvider/src \
        -in ${ANDROID_BUILD_TOP}/out/target/common/obj/APPS/CalendarProvider_intermediates/coverage.em
    popd

    echo "Report is in $HOME/emmaReport"

    return 0
}

function no_emma_calp()
{
    # rebuild provider without emma coverage
    _build_install_calp false
}

function _build_install_calp()
{
    emma=$1

    # switch to root on userdebug builds - this may take a second to finish
    adb root

    pushd $ANDROID_BUILD_TOP

    # force rebuild
    rm -rf out/target/common/obj/APPS/CalendarProvider_intermediates
    ##rm -rf out/target/common/obj/APPS/CalendarProviderTests_intermediates
    rm -rf out/target/common/obj/APPS/CtsProviderTestCases_intermediates
    EMMA_INSTRUMENT=$emma mmm -j4 packages/providers/CalendarProvider \
        && EMMA_INSTRUMENT=$emma mmm -j4 cts/tests/tests/provider
    if [ $? -ne 0 ]; then
        popd
        return 1
    fi

    # copy the instrumented APKs to the device
    adb remount
    adb push ${ANDROID_PRODUCT_OUT}/system/app/CalendarProvider.apk /system/app/
    ##adb push ${ANDROID_PRODUCT_OUT}/data/app/CalendarProviderTests.apk /data/app/
    adb push ${ANDROID_PRODUCT_OUT}/data/app/CtsProviderTestCases.apk /data/app/
    popd

    # give the device a couple of seconds to install the packages
    sleep 2
}