public void testCache() throws Exception {
ImageIO.setUseCache(true);
assertTrue("Failed to enable cache", ImageIO.getUseCache());
ImageIO.setUseCache(false);
assertFalse("Failed to disable cache", ImageIO.getUseCache());
ImageIO.setCacheDirectory(null);
assertNull("Failed to set cache directory", ImageIO.getCacheDirectory());
try {
ImageIO.setCacheDirectory(new File(""));
fail("IllegalArgumentException expected");
} catch (IllegalArgumentException expected) {
// OK
}
}
