Merge "Remove Numbering System preference if no corresponding locale." into udc-dev

tests/unit/src/com/android/settings/regionalpreferences/NumberingPreferencesFragmentTest.java

@@ -19,18 +19,15 @@ package com.android.settings.regionalpreferences;
 import static org.junit.Assert.assertEquals;
 
 import android.app.settings.SettingsEnums;
-import android.content.Context;
 import android.os.Bundle;
 import android.os.Looper;
 
 import androidx.test.annotation.UiThreadTest;
-import androidx.test.core.app.ApplicationProvider;
 
 import org.junit.Before;
 import org.junit.Test;
 
 public class NumberingPreferencesFragmentTest {
-    private Context mApplicationContext;
     private NumberingPreferencesFragment mFragment;
 
     @Before
@@ -39,7 +36,6 @@ public class NumberingPreferencesFragmentTest {
         if (Looper.myLooper() == null) {
             Looper.prepare();
         }
-        mApplicationContext = ApplicationProvider.getApplicationContext();
         mFragment = new NumberingPreferencesFragment();
     }
 

tests/unit/src/com/android/settings/regionalpreferences/NumberingSystemControllerTest.java

@@ -0,0 +1,61 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.regionalpreferences;
+
+import static com.android.settings.core.BasePreferenceController.AVAILABLE;
+import static com.android.settings.core.BasePreferenceController.CONDITIONALLY_UNAVAILABLE;
+
+import static org.junit.Assert.assertEquals;
+
+import android.content.Context;
+import android.os.LocaleList;
+
+import androidx.test.core.app.ApplicationProvider;
+
+import org.junit.Before;
+import org.junit.Test;
+
+public class NumberingSystemControllerTest {
+    private Context mApplicationContext;
+    private NumberingSystemController mController;
+
+    @Before
+    public void setUp() throws Exception {
+        mApplicationContext = ApplicationProvider.getApplicationContext();
+    }
+
+    @Test
+    public void getAvailabilityStatus_noLocale_unavailable() {
+        LocaleList.setDefault(LocaleList.forLanguageTags("en-US,zh-Hant-TW"));
+        mController = new NumberingSystemController(mApplicationContext, "key");
+
+        int result = mController.getAvailabilityStatus();
+
+        assertEquals(CONDITIONALLY_UNAVAILABLE, result);
+    }
+
+    @Test
+    public void getAvailabilityStatus_hasLocaleWithNumberingSystems_available() {
+        // ar-JO has different numbering system.
+        LocaleList.setDefault(LocaleList.forLanguageTags("en-US,zh-Hant-TW,ar-JO"));
+        mController = new NumberingSystemController(mApplicationContext, "key");
+
+        int result = mController.getAvailabilityStatus();
+
+        assertEquals(AVAILABLE, result);
+    }
+}

tests/unit/src/com/android/settings/regionalpreferences/NumberingSystemItemControllerTest.java

@@ -111,8 +111,8 @@ public class NumberingSystemItemControllerTest {
 
     @Test
     @UiThreadTest
-    public void displayPreference_languageOptAndHas2Locale_show2Options() {
-        LocaleList.setDefault(LocaleList.forLanguageTags("en-US, zh-TW"));
+    public void displayPreference_languageOptAndHas2LocaleWithSingleNu_showNothing() {
+        LocaleList.setDefault(LocaleList.forLanguageTags("en-US,zh-TW"));
         Bundle bundle = new Bundle();
         bundle.putString(RegionalPreferencesEntriesFragment.ARG_KEY_REGIONAL_PREFERENCE,
                 NumberingSystemItemController.ARG_VALUE_LANGUAGE_SELECT);
@@ -123,13 +123,31 @@ public class NumberingSystemItemControllerTest {
 
         mController.displayPreference(mPreferenceScreen);
 
-        assertEquals(LocaleList.getDefault().size(), mPreferenceScreen.getPreferenceCount());
+        assertEquals(0, mPreferenceScreen.getPreferenceCount());
+    }
+
+    @Test
+    @UiThreadTest
+    public void displayPreference_languageOptAndHas2LocaleWithMultiNu_showLocaleWithMultiNuOnly() {
+        // ar-JO and dz-BT have multiple numbering systems.
+        LocaleList.setDefault(LocaleList.forLanguageTags("en-US,zh-TW,ar-JO,dz-BT"));
+        Bundle bundle = new Bundle();
+        bundle.putString(RegionalPreferencesEntriesFragment.ARG_KEY_REGIONAL_PREFERENCE,
+                NumberingSystemItemController.ARG_VALUE_LANGUAGE_SELECT);
+        bundle.putString(
+                NumberingSystemItemController.KEY_SELECTED_LANGUAGE, Locale.US.toLanguageTag());
+        mController = new NumberingSystemItemController(mApplicationContext, bundle);
+        mController.setParentFragment(mFragment);
+
+        mController.displayPreference(mPreferenceScreen);
+
+        assertEquals(2, mPreferenceScreen.getPreferenceCount());
     }
 
     @Test
     @UiThreadTest
     public void displayPreference_enUsNumbersOpt_show1Option() {
-        LocaleList.setDefault(LocaleList.forLanguageTags("en-US, zh-TW"));
+        LocaleList.setDefault(LocaleList.forLanguageTags("en-US,zh-TW"));
         Bundle bundle = new Bundle();
         bundle.putString(RegionalPreferencesEntriesFragment.ARG_KEY_REGIONAL_PREFERENCE,
                 NumberingSystemItemController.ARG_VALUE_NUMBERING_SYSTEM_SELECT);