@SmallTest
@Feature({"Cronet"})
public void testDisableCache() throws Exception {
enableCache(CronetEngine.Builder.HTTP_CACHE_DISK);
String url = NativeTestServer.getFileURL("/cacheable.txt");
// When cache is disabled, making a request does not write to the cache.
checkRequestCaching(
url, false, true
/** disable cache */
);
checkRequestCaching(url, false);
// When cache is enabled, the second request is cached.
checkRequestCaching(
url, false, true
/** disable cache */
);
checkRequestCaching(url, true);
// Shut down the server, next request should have a cached response.
NativeTestServer.shutdownNativeTestServer();
checkRequestCaching(url, true);
// Cache is disabled after server is shut down, request should fail.
TestUrlRequestListener listener = new TestUrlRequestListener();
UrlRequest.Builder urlRequestBuilder =
new UrlRequest.Builder(url, listener, listener.getExecutor(), mActivity.mCronetEngine);
urlRequestBuilder.disableCache();
urlRequestBuilder.build().start();
listener.blockForDone();
assertNotNull(listener.mError);
assertEquals(
"Exception in CronetUrlRequest: net::ERR_CONNECTION_REFUSED", listener.mError.getMessage());
}
private void checkRequestCaching(String url, boolean expectCached, boolean disableCache) {
TestUrlRequestListener listener = new TestUrlRequestListener();
UrlRequest.Builder urlRequestBuilder =
new UrlRequest.Builder(url, listener, listener.getExecutor(), mActivity.mCronetEngine);
if (disableCache) {
urlRequestBuilder.disableCache();
}
urlRequestBuilder.build().start();
listener.blockForDone();
assertEquals(expectCached, listener.mResponseInfo.wasCached());
}
