Merge "Temporarily disable `testBackgroundDexOptDowngradeSuccessful`."

import org.junit.Assert;

import org.junit.Before;

import org.junit.BeforeClass;

import org.junit.Ignore;

import org.junit.Test;

import org.junit.runner.RunWith;

import org.junit.runners.JUnit4;

    // Test that background dexopt under low storage conditions downgrades unused packages.

    @Test

    @Ignore("b/251438180: This test has been failing for a long time; temporarily disable it while"

            + " we investigate this issue.")

    public void testBackgroundDexOptDowngradeSuccessful() throws IOException {

        // Should be more than DOWNGRADE_AFTER_DAYS.

        long deltaDays = DOWNGRADE_AFTER_DAYS + 1;