Merge "Consolidate test cases for InputMethodSubtype"

import android.view.inputmethod.InputMethodSubtype;

import android.view.inputmethod.InputMethodSubtype.InputMethodSubtypeBuilder;

import java.util.Objects;

public class InputMethodSubtypeTest extends InstrumentationTestCase {

    public void verifyLocale(final String localeString) {

        // InputMethodSubtype#getLocale() returns exactly the same string that is passed to the

        // constructor.

        assertEquals(localeString, createDummySubtype(localeString).getLocale());

        // InputMethodSubtype#getLocale() should be preserved via marshaling.

        assertEquals(createDummySubtype(localeString).getLocale(),

                cloneViaParcel(createDummySubtype(localeString)).getLocale());

        // InputMethodSubtype#getLocale() should be preserved via marshaling.

        assertEquals(createDummySubtype(localeString).getLocale(),

                cloneViaParcel(cloneViaParcel(createDummySubtype(localeString))).getLocale());

        // Make sure InputMethodSubtype#hashCode() returns the same hash code.

        assertEquals(createDummySubtype(localeString).hashCode(),

                createDummySubtype(localeString).hashCode());

        assertEquals(createDummySubtype(localeString).hashCode(),

                cloneViaParcel(createDummySubtype(localeString)).hashCode());

        assertEquals(createDummySubtype(localeString).hashCode(),

                cloneViaParcel(cloneViaParcel(createDummySubtype(localeString))).hashCode());

    }

    @SmallTest

    public void testLocale() throws Exception {

        // Compare locale

        assertEquals(createDummySubtype("en_US").getLocale(),

                createDummySubtype("en_US").getLocale());

        assertEquals(createDummySubtype("en_US").getLocale(),

                cloneViaParcel(createDummySubtype("en_US")).getLocale());

        assertEquals(createDummySubtype("en_US").getLocale(),

                cloneViaParcel(cloneViaParcel(createDummySubtype("en_US"))).getLocale());

    public void testLocaleString() throws Exception {

        // The locale string in InputMethodSubtype has accepted an arbitrary text actually,

        // regardless of the validity of the text as a locale string.

        verifyLocale("en_US");

        verifyLocale("apparently invalid locale string");

        verifyLocale("zz");

        verifyLocale("iw");

        verifyLocale("he");

    }

    @SmallTest

    public void testHashCode() throws Exception {

        assertEquals(createDummySubtype("en_US").hashCode(),

                createDummySubtype("en_US").hashCode());

        assertEquals(createDummySubtype("en_US").hashCode(),

                cloneViaParcel(createDummySubtype("en_US")).hashCode());

        assertEquals(createDummySubtype("en_US").hashCode(),

                cloneViaParcel(cloneViaParcel(createDummySubtype("en_US"))).hashCode());

    public void testDeprecatedLocaleString() throws Exception {

        // Make sure "iw" is not automatically replaced with "he".

        final InputMethodSubtype subtypeIw = createDummySubtype("iw");

        final InputMethodSubtype subtypeHe = createDummySubtype("he");

        assertEquals("iw", subtypeIw.getLocale());

        assertEquals("he", subtypeHe.getLocale());

        assertFalse(Objects.equals(subtypeIw, subtypeHe));

        assertFalse(Objects.equals(subtypeIw.hashCode(), subtypeHe.hashCode()));

        final InputMethodSubtype clonedSubtypeIw = cloneViaParcel(subtypeIw);

        final InputMethodSubtype clonedSubtypeHe = cloneViaParcel(subtypeHe);

        assertEquals(subtypeIw, clonedSubtypeIw);

        assertEquals(subtypeHe, clonedSubtypeHe);

        assertEquals("iw", clonedSubtypeIw.getLocale());

        assertEquals("he", clonedSubtypeHe.getLocale());

    }

    private static final InputMethodSubtype cloneViaParcel(final InputMethodSubtype original) {