diff --git a/tests/unit/zip_test.cpp b/tests/unit/zip_test.cpp
new file mode 100644
index 0000000..b617446
--- /dev/null
+++ b/tests/unit/zip_test.cpp
@@ -0,0 +1,93 @@
+/*
+ * Copyright (C) 2016 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.
+ */
+
+#include <errno.h>
+#include <fcntl.h>
+#include <pthread.h>
+#include <unistd.h>
+
+#include <memory>
+#include <vector>
+
+#include <android-base/file.h>
+#include <android-base/stringprintf.h>
+#include <android-base/unique_fd.h>
+#include <android-base/test_utils.h>
+#include <gtest/gtest.h>
+#include <otautil/SysUtil.h>
+#include <otautil/ZipUtil.h>
+#include <ziparchive/zip_archive.h>
+
+static const std::string DATA_PATH(getenv("ANDROID_DATA"));
+static const std::string TESTDATA_PATH("/recovery/testdata/");
+
+static const std::vector<uint8_t> kATxtContents {
+    'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h',
+    'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h',
+    '\n'
+};
+
+static const std::vector<uint8_t> kBTxtContents {
+    'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h',
+    '\n'
+};
+
+TEST(otazip, ExtractPackageRecursive) {
+    TemporaryDir td;
+    ASSERT_NE(td.path, nullptr);
+    ZipArchiveHandle handle;
+    std::string zip_path = DATA_PATH + TESTDATA_PATH + "/ziptest_valid.zip";
+    ASSERT_EQ(0, OpenArchive(zip_path.c_str(), &handle));
+    // Extract the whole package into a temp directory.
+    ExtractPackageRecursive(handle, "", td.path, nullptr, nullptr);
+    // Make sure all the files are extracted correctly.
+    std::string path(td.path);
+    android::base::unique_fd fd(open((path + "/a.txt").c_str(), O_RDONLY));
+    ASSERT_NE(fd, -1);
+    std::vector<uint8_t> read_data;
+    read_data.resize(kATxtContents.size());
+    // The content of the file is the same as expected.
+    ASSERT_TRUE(android::base::ReadFully(fd.get(), read_data.data(), read_data.size()));
+    ASSERT_EQ(0, memcmp(read_data.data(), kATxtContents.data(), kATxtContents.size()));
+
+    fd.reset(open((path + "/b.txt").c_str(), O_RDONLY));
+    ASSERT_NE(fd, -1);
+    fd.reset(open((path + "/b/c.txt").c_str(), O_RDONLY));
+    ASSERT_NE(fd, -1);
+    fd.reset(open((path + "/b/d.txt").c_str(), O_RDONLY));
+    ASSERT_NE(fd, -1);
+    read_data.resize(kBTxtContents.size());
+    ASSERT_TRUE(android::base::ReadFully(fd.get(), read_data.data(), read_data.size()));
+    ASSERT_EQ(0, memcmp(read_data.data(), kBTxtContents.data(), kBTxtContents.size()));
+}
+
+TEST(otazip, OpenFromMemory) {
+    MemMapping map;
+    std::string zip_path = DATA_PATH + TESTDATA_PATH + "/ziptest_dummy-update.zip";
+    ASSERT_EQ(0, sysMapFile(zip_path.c_str(), &map));
+    // Map an update package into memory and open the archive from there.
+    ZipArchiveHandle handle;
+    ASSERT_EQ(0, OpenArchiveFromMemory(map.addr, map.length, zip_path.c_str(), &handle));
+    static constexpr const char* BINARY_PATH = "META-INF/com/google/android/update-binary";
+    ZipString binary_path(BINARY_PATH);
+    ZipEntry binary_entry;
+    // Make sure the package opens correctly and its entry can be read.
+    ASSERT_EQ(0, FindEntry(handle, binary_path, &binary_entry));
+    TemporaryFile tmp_binary;
+    ASSERT_NE(-1, tmp_binary.fd);
+    ASSERT_EQ(0, ExtractEntryToFile(handle, &binary_entry, tmp_binary.fd));
+}
+