1 files changed, 198 insertions, 0 deletions
diff --git a/tests/unit/applypatch_modes_test.cpp b/tests/unit/applypatch_modes_test.cpp
new file mode 100644
index 000000000..08414b796
--- /dev/null
+++ b/tests/unit/applypatch_modes_test.cpp
@@ -0,0 +1,198 @@
+/*
+ * 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 agree 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 <stdio.h>
+#include <stdlib.h>
+
+#include <string>
+#include <vector>
+
+#include <android-base/file.h>
+#include <android-base/logging.h>
+#include <android-base/strings.h>
+#include <bsdiff/bsdiff.h>
+#include <gtest/gtest.h>
+#include <openssl/sha.h>
+
+#include "applypatch/applypatch_modes.h"
+#include "common/test_constants.h"
+#include "otautil/paths.h"
+#include "otautil/print_sha1.h"
+#include "otautil/sysutil.h"
+
+using namespace std::string_literals;
+
+// Loads a given partition and returns a string of form "EMMC:name:size:hash".
+static std::string GetEmmcTargetString(const std::string& filename,
+                                       const std::string& display_name = "") {
+  std::string data;
+  if (!android::base::ReadFileToString(filename, &data)) {
+    PLOG(ERROR) << "Failed to read " << filename;
+    return {};
+  }
+
+  uint8_t digest[SHA_DIGEST_LENGTH];
+  SHA1(reinterpret_cast<const uint8_t*>(data.c_str()), data.size(), digest);
+
+  return "EMMC:"s + (display_name.empty() ? filename : display_name) + ":" +
+         std::to_string(data.size()) + ":" + print_sha1(digest);
+}
+
+class ApplyPatchModesTest : public ::testing::Test {
+ protected:
+  void SetUp() override {
+    source = GetEmmcTargetString(from_testdata_base("boot.img"));
+    ASSERT_FALSE(source.empty());
+
+    std::string recovery_file = from_testdata_base("recovery.img");
+    recovery = GetEmmcTargetString(recovery_file);
+    ASSERT_FALSE(recovery.empty());
+
+    ASSERT_TRUE(android::base::WriteStringToFile("", patched_file_.path));
+    target = GetEmmcTargetString(recovery_file, patched_file_.path);
+    ASSERT_FALSE(target.empty());
+
+    Paths::Get().set_cache_temp_source(cache_source_.path);
+  }
+
+  std::string source;
+  std::string target;
+  std::string recovery;
+
+ private:
+  TemporaryFile cache_source_;
+  TemporaryFile patched_file_;
+};
+
+static int InvokeApplyPatchModes(const std::vector<std::string>& args) {
+  auto args_to_call = StringVectorToNullTerminatedArray(args);
+  return applypatch_modes(args_to_call.size() - 1, args_to_call.data());
+}
+
+static void VerifyPatchedTarget(const std::string& target) {
+  std::vector<std::string> pieces = android::base::Split(target, ":");
+  ASSERT_EQ(4, pieces.size());
+  ASSERT_EQ("EMMC", pieces[0]);
+
+  std::string patched_emmc = GetEmmcTargetString(pieces[1]);
+  ASSERT_FALSE(patched_emmc.empty());
+  ASSERT_EQ(target, patched_emmc);
+}
+
+TEST_F(ApplyPatchModesTest, InvalidArgs) {
+  // At least two args (including the filename).
+  ASSERT_EQ(2, InvokeApplyPatchModes({ "applypatch" }));
+
+  // Unrecognized args.
+  ASSERT_EQ(2, InvokeApplyPatchModes({ "applypatch", "-x" }));
+}
+
+TEST_F(ApplyPatchModesTest, PatchModeEmmcTarget) {
+  std::vector<std::string> args{
+    "applypatch",
+    "--bonus",
+    from_testdata_base("bonus.file"),
+    "--patch",
+    from_testdata_base("recovery-from-boot.p"),
+    "--target",
+    target,
+    "--source",
+    source,
+  };
+  ASSERT_EQ(0, InvokeApplyPatchModes(args));
+  VerifyPatchedTarget(target);
+}
+
+// Tests patching an eMMC target without a separate bonus file (i.e. recovery-from-boot patch has
+// everything).
+TEST_F(ApplyPatchModesTest, PatchModeEmmcTargetWithoutBonusFile) {
+  std::vector<std::string> args{
+    "applypatch", "--patch", from_testdata_base("recovery-from-boot-with-bonus.p"),
+    "--target",   target,    "--source",
+    source,
+  };
+
+  ASSERT_EQ(0, InvokeApplyPatchModes(args));
+  VerifyPatchedTarget(target);
+}
+
+// Ensures that applypatch works with a bsdiff based recovery-from-boot.p.
+TEST_F(ApplyPatchModesTest, PatchModeEmmcTargetWithBsdiffPatch) {
+  // Generate the bsdiff patch of recovery-from-boot.p.
+  std::string src_content;
+  ASSERT_TRUE(android::base::ReadFileToString(from_testdata_base("boot.img"), &src_content));
+
+  std::string tgt_content;
+  ASSERT_TRUE(android::base::ReadFileToString(from_testdata_base("recovery.img"), &tgt_content));
+
+  TemporaryFile patch_file;
+  ASSERT_EQ(0,
+            bsdiff::bsdiff(reinterpret_cast<const uint8_t*>(src_content.data()), src_content.size(),
+                           reinterpret_cast<const uint8_t*>(tgt_content.data()), tgt_content.size(),
+                           patch_file.path, nullptr));
+
+  std::vector<std::string> args{
+    "applypatch", "--patch", patch_file.path, "--target", target, "--source", source,
+  };
+  ASSERT_EQ(0, InvokeApplyPatchModes(args));
+  VerifyPatchedTarget(target);
+}
+
+TEST_F(ApplyPatchModesTest, PatchModeInvalidArgs) {
+  // Invalid bonus file.
+  std::vector<std::string> args{
+    "applypatch", "--bonus", "/doesntexist", "--patch", from_testdata_base("recovery-from-boot.p"),
+    "--target",   target,    "--source",     source,
+  };
+  ASSERT_NE(0, InvokeApplyPatchModes(args));
+
+  // With bonus file, but missing args.
+  ASSERT_NE(0,
+            InvokeApplyPatchModes({ "applypatch", "--bonus", from_testdata_base("bonus.file") }));
+}
+
+TEST_F(ApplyPatchModesTest, FlashMode) {
+  std::vector<std::string> args{
+    "applypatch", "--flash", from_testdata_base("recovery.img"), "--target", target,
+  };
+  ASSERT_EQ(0, InvokeApplyPatchModes(args));
+  VerifyPatchedTarget(target);
+}
+
+TEST_F(ApplyPatchModesTest, FlashModeInvalidArgs) {
+  std::vector<std::string> args{
+    "applypatch", "--bonus", from_testdata_base("bonus.file"), "--flash", source,
+    "--target",   target,
+  };
+  ASSERT_NE(0, InvokeApplyPatchModes(args));
+}
+
+TEST_F(ApplyPatchModesTest, CheckMode) {
+  ASSERT_EQ(0, InvokeApplyPatchModes({ "applypatch", "--check", recovery }));
+  ASSERT_EQ(0, InvokeApplyPatchModes({ "applypatch", "--check", source }));
+}
+
+TEST_F(ApplyPatchModesTest, CheckModeInvalidArgs) {
+  ASSERT_EQ(2, InvokeApplyPatchModes({ "applypatch", "--check" }));
+}
+
+TEST_F(ApplyPatchModesTest, CheckModeNonEmmcTarget) {
+  ASSERT_NE(0, InvokeApplyPatchModes({ "applypatch", "--check", from_testdata_base("boot.img") }));
+}
+
+TEST_F(ApplyPatchModesTest, ShowLicenses) {
+  ASSERT_EQ(0, InvokeApplyPatchModes({ "applypatch", "--license" }));
+}