src/android/tests/src/com/google/android/inputmethod/japanese/view/WeakDrawableCacheTest.java

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package org.mozc.android.inputmethod.japanese.view;

import android.graphics.drawable.ColorDrawable;
import android.graphics.drawable.Drawable;

import junit.framework.TestCase;

/**
 */
public class WeakDrawableCacheTest extends TestCase {
  public void testWeakDrawableCache() {
    Drawable drawable = new ColorDrawable();
    int key = 10;
    WeakDrawableCache cacheMap = new WeakDrawableCache();
    assertFalse(cacheMap.get(key).isPresent());
    cacheMap.put(key, drawable);
    assertSame(drawable, cacheMap.get(key).get());
    System.gc();
    assertSame(drawable, cacheMap.get(key).get());

    // Unfortunately, it is NOT ensured that the System.gc() runs GC actually.
    // So we cannot test if drawable is actually released.

    cacheMap.clear();
    assertFalse(cacheMap.get(key).isPresent());
  }
}