Merge "Fix VintfObjectTest" into main

package android.os;

import static org.junit.Assert.assertTrue;

import static com.google.common.truth.Truth.assertThat;

import static java.util.stream.Collectors.toList;

import android.platform.test.annotations.IgnoreUnderRavenwood;

import android.platform.test.ravenwood.RavenwoodRule;

import android.util.Pair;

import androidx.test.ext.junit.runners.AndroidJUnit4;

import org.junit.Rule;

import org.junit.Test;

import org.junit.runner.RunWith;

import org.xml.sax.InputSource;

import java.io.StringReader;

import java.util.stream.Stream;

import javax.xml.parsers.DocumentBuilderFactory;

@RunWith(AndroidJUnit4.class)

@IgnoreUnderRavenwood(blockedBy = VintfObject.class)

    @Test

    public void testReport() {

        String[] xmls = VintfObject.report();

        assertTrue(xmls.length > 0);

        // From /system/manifest.xml

        assertTrue(String.join("", xmls).contains(

                "<manifest version=\"1.0\" type=\"framework\">"));

        // From /system/compatibility-matrix.xml

        assertTrue(String.join("", xmls).contains(

                "<compatibility-matrix version=\"1.0\" type=\"framework\""));

        assertThat(Stream.of(xmls).map(xml -> rootAndType(xml)).collect(toList()))

                .containsExactly(

                    Pair.create("manifest", "framework"),

                    Pair.create("compatibility-matrix", "framework"),

                    Pair.create("manifest", "device"),

                    Pair.create("compatibility-matrix", "device")

                );

    }

    private static Pair<String, String> rootAndType(String content) {

        try {

            var factory = DocumentBuilderFactory.newInstance();

            var builder = factory.newDocumentBuilder();

            var inputSource = new InputSource(new StringReader(content));

            var document = builder.parse(inputSource);

            var root = document.getDocumentElement();

            return Pair.create(root.getTagName(), root.getAttribute("type"));

        } catch (Exception e) {

            throw new RuntimeException(e);

        }

    }

}