Add compatibility utility class for LocaleSpan

This is a groundwork for enabling LocaleSpan support.
LocaleSpan is available in API Level 17 and later. We need some
abstraction layer as usual.

BUG: 16029304
Change-Id: Iead1afdc540216edb1b17f91a40d9edb2e790168

1 files changed, 38 insertions, 0 deletions

diff --git a/tests/src/com/android/inputmethod/compat/LocaleSpanCompatUtilsTests.java b/tests/src/com/android/inputmethod/compat/LocaleSpanCompatUtilsTests.java
new file mode 100644
index 000000000..a920373d4
--- /dev/null
+++ b/tests/src/com/android/inputmethod/compat/LocaleSpanCompatUtilsTests.java
@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2014 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.inputmethod.compat;
+
+import android.os.Build;
+import android.test.AndroidTestCase;
+import android.test.suitebuilder.annotation.SmallTest;
+
+import java.util.Locale;
+
+@SmallTest
+public class LocaleSpanCompatUtilsTests extends AndroidTestCase {
+    public void testInstantiatable() {
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN_MR1) {
+            // LocaleSpan isn't yet available.
+            return;
+        }
+        assertTrue(LocaleSpanCompatUtils.isLocaleSpanAvailable());
+        final Object japaneseLocaleSpan = LocaleSpanCompatUtils.newLocaleSpan(Locale.JAPANESE);
+        assertNotNull(japaneseLocaleSpan);
+        assertEquals(Locale.JAPANESE,
+                LocaleSpanCompatUtils.getLocaleFromLocaleSpan(japaneseLocaleSpan));
+    }
+}