Merge "Add HttpResponseCacheTest as a CTS test"

tests/cts/net/Android.mk

@@ -26,15 +26,15 @@ LOCAL_MULTILIB := both
 
 LOCAL_JAVA_LIBRARIES := voip-common conscrypt
 
-LOCAL_JNI_SHARED_LIBRARIES := libnativedns_jni
+LOCAL_JNI_SHARED_LIBRARIES := libcts_jni libnativedns_jni
 
 # include CtsTestServer as a temporary hack to free net.cts from cts.stub.
 LOCAL_SRC_FILES := $(call all-java-files-under, src)
 
 LOCAL_PACKAGE_NAME := CtsNetTestCases
 
-LOCAL_STATIC_JAVA_LIBRARIES := ctstestserver ctsdeviceutil ctstestrunner \
+LOCAL_STATIC_JAVA_LIBRARIES := core-tests-support  ctsdeviceutil \
-                               core-tests-support
+                               ctstestrunner ctstestserver mockwebserver
 
 # uncomment when b/13249961 is fixed
 #LOCAL_SDK_VERSION := current

tests/cts/net/src/android/net/http/cts/HttpResponseCacheTest.java

@@ -0,0 +1,158 @@
+/*
+ * Copyright (C) 2011 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 android.net.http.cts;
+
+import com.google.mockwebserver.MockResponse;
+import com.google.mockwebserver.MockWebServer;
+
+import junit.framework.TestCase;
+
+import android.cts.util.FileUtils;
+import android.net.http.HttpResponseCache;
+
+import java.io.File;
+import java.io.InputStream;
+import java.net.CacheRequest;
+import java.net.CacheResponse;
+import java.net.ResponseCache;
+import java.net.URI;
+import java.net.URLConnection;
+import java.util.List;
+import java.util.Map;
+import java.util.UUID;
+
+public final class HttpResponseCacheTest extends TestCase {
+
+    private File cacheDir;
+    private MockWebServer server = new MockWebServer();
+
+    @Override public void setUp() throws Exception {
+        super.setUp();
+        String tmp = System.getProperty("java.io.tmpdir");
+        cacheDir = new File(tmp, "HttpCache-" + UUID.randomUUID());
+        cacheDir.mkdirs();
+        // Make the cache directory read / writable.
+        FileUtils.setPermissions(cacheDir.getPath(), 0777);
+    }
+
+    @Override protected void tearDown() throws Exception {
+        ResponseCache.setDefault(null);
+        server.shutdown();
+        super.tearDown();
+    }
+
+    public void testInstall() throws Exception {
+        HttpResponseCache installed = HttpResponseCache.install(cacheDir, 10 * 1024 * 1024);
+        assertNotNull(installed);
+        assertSame(installed, ResponseCache.getDefault());
+        assertSame(installed, HttpResponseCache.getDefault());
+    }
+
+    public void testSecondEquivalentInstallDoesNothing() throws Exception {
+        HttpResponseCache first = HttpResponseCache.install(cacheDir, 10 * 1024 * 1024);
+        HttpResponseCache another = HttpResponseCache.install(cacheDir, 10 * 1024 * 1024);
+        assertSame(first, another);
+    }
+
+    public void testInstallClosesPreviouslyInstalled() throws Exception {
+        HttpResponseCache first = HttpResponseCache.install(cacheDir, 10 * 1024 * 1024);
+        initializeCache(first);
+
+        HttpResponseCache another = HttpResponseCache.install(cacheDir, 8 * 1024 * 1024);
+        initializeCache(first);
+
+        assertNotSame(first, another);
+        try {
+            first.flush();
+            fail();
+        } catch (IllegalStateException expected) {
+        }
+    }
+
+    public void testGetInstalledWithWrongTypeInstalled() {
+        ResponseCache.setDefault(new ResponseCache() {
+            @Override public CacheResponse get(URI uri, String requestMethod,
+                    Map<String, List<String>> requestHeaders) {
+                return null;
+            }
+            @Override public CacheRequest put(URI uri, URLConnection connection) {
+                return null;
+            }
+        });
+        assertNull(HttpResponseCache.getInstalled());
+    }
+
+    public void testCloseCloses() throws Exception {
+        HttpResponseCache cache = HttpResponseCache.install(cacheDir, 10 * 1024 * 1024);
+        initializeCache(cache);
+
+        cache.close();
+        try {
+            cache.flush();
+            fail();
+        } catch (IllegalStateException expected) {
+        }
+    }
+
+    public void testCloseUninstalls() throws Exception {
+        HttpResponseCache cache = HttpResponseCache.install(cacheDir, 10 * 1024 * 1024);
+        cache.close();
+        assertNull(ResponseCache.getDefault());
+    }
+
+    public void testDeleteUninstalls() throws Exception {
+        HttpResponseCache cache = HttpResponseCache.install(cacheDir, 10 * 1024 * 1024);
+        cache.delete();
+        assertNull(ResponseCache.getDefault());
+    }
+
+    /**
+     * Make sure that statistics tracking are wired all the way through the
+     * wrapper class. http://code.google.com/p/android/issues/detail?id=25418
+     */
+    public void testStatisticsTracking() throws Exception {
+        HttpResponseCache cache = HttpResponseCache.install(cacheDir, 10 * 1024 * 1024);
+
+        server.enqueue(new MockResponse()
+                .addHeader("Cache-Control: max-age=60")
+                .setBody("A"));
+        server.play();
+
+        URLConnection c1 = server.getUrl("/").openConnection();
+        InputStream inputStream1 = c1.getInputStream();
+        assertEquals('A', inputStream1.read());
+        inputStream1.close();
+
+        assertEquals(1, cache.getRequestCount());
+        assertEquals(1, cache.getNetworkCount());
+        assertEquals(0, cache.getHitCount());
+
+        URLConnection c2 = server.getUrl("/").openConnection();
+        assertEquals('A', c2.getInputStream().read());
+
+        URLConnection c3 = server.getUrl("/").openConnection();
+        assertEquals('A', c3.getInputStream().read());
+        assertEquals(3, cache.getRequestCount());
+        assertEquals(1, cache.getNetworkCount());
+        assertEquals(2, cache.getHitCount());
+    }
+
+    private void initializeCache(HttpResponseCache cache) {
+        // Ensure the cache is initialized, otherwise various methods are no-ops.
+        cache.size();
+    }
+}