Merge "Fix FrameworksCoreTest failue due to system font modification"

import org.junit.runner.RunWith;

import java.nio.ByteOrder;

import java.util.HashMap;

import java.util.Map;

import java.util.Random;

    @SmallTest

    @Test

    public void testSetSystemFontMap() throws Exception {

        // Typeface.setSystemFontMap mutate the returned map. So copying for the backup.

        HashMap<String, Typeface> backup = new HashMap<>(Typeface.getSystemFontMap());

        Context context = InstrumentationRegistry.getInstrumentation().getTargetContext();

        Resources res = context.getResources();

        Map<String, Typeface> fontMap = Map.of(

                "monospace", Typeface.create(res.getFont(R.font.samplefont3), Typeface.NORMAL),

                "sample", Typeface.create(res.getFont(R.font.samplefont4), Typeface.NORMAL),

                "sample-italic", Typeface.create(res.getFont(R.font.samplefont4), Typeface.ITALIC));

        try {

            Typeface.setSystemFontMap(fontMap);

            // Test public static final fields

            // Test create()

            assertEquals(fontMap.get("sample"), Typeface.create("sample", Typeface.NORMAL));

            assertEquals(

                fontMap.get("sample-italic"), Typeface.create("sample-italic", Typeface.ITALIC));

                    fontMap.get("sample-italic"),

                    Typeface.create("sample-italic", Typeface.ITALIC));

        } finally {

            // This tests breaks many default font configuration and break the assumption of the

            // subsequent test cases. To recover the original configuration, call the

            // setSystemFontMap function with the original data even if it is a test target.

            // Ideally, this test should be isolated and app should be restart after this test

            // been executed.

            Typeface.setSystemFontMap(backup);

        }

    }

    private static float measureText(Typeface typeface, String text) {