8992902aab
Clean up SymlinkFn() a bit. Also clean up the temp files created when running the tests; otherwise non-empty TemporaryDir won't be removed. Test: recovery_component_test passes. Change-Id: Id3844abebd168c40125c4dcec54e6ef680a83c3a
266 lines
9.7 KiB
C++
266 lines
9.7 KiB
C++
/*
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* Copyright (C) 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include <string>
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#include <android-base/file.h>
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#include <android-base/properties.h>
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#include <android-base/test_utils.h>
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#include <gtest/gtest.h>
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#include "edify/expr.h"
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#include "error_code.h"
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#include "updater/install.h"
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struct selabel_handle *sehandle = nullptr;
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static void expect(const char* expected, const char* expr_str, CauseCode cause_code) {
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Expr* e;
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int error_count;
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EXPECT_EQ(parse_string(expr_str, &e, &error_count), 0);
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State state(expr_str, nullptr);
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std::string result;
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bool status = Evaluate(&state, e, &result);
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if (expected == nullptr) {
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EXPECT_FALSE(status);
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} else {
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EXPECT_STREQ(expected, result.c_str());
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}
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// Error code is set in updater/updater.cpp only, by parsing State.errmsg.
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EXPECT_EQ(kNoError, state.error_code);
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// Cause code should always be available.
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EXPECT_EQ(cause_code, state.cause_code);
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}
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class UpdaterTest : public ::testing::Test {
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protected:
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virtual void SetUp() {
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RegisterBuiltins();
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RegisterInstallFunctions();
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}
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};
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TEST_F(UpdaterTest, getprop) {
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expect(android::base::GetProperty("ro.product.device", "").c_str(),
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"getprop(\"ro.product.device\")",
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kNoCause);
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expect(android::base::GetProperty("ro.build.fingerprint", "").c_str(),
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"getprop(\"ro.build.fingerprint\")",
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kNoCause);
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// getprop() accepts only one parameter.
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expect(nullptr, "getprop()", kArgsParsingFailure);
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expect(nullptr, "getprop(\"arg1\", \"arg2\")", kArgsParsingFailure);
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}
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TEST_F(UpdaterTest, sha1_check) {
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// sha1_check(data) returns the SHA-1 of the data.
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expect("81fe8bfe87576c3ecb22426f8e57847382917acf", "sha1_check(\"abcd\")", kNoCause);
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expect("da39a3ee5e6b4b0d3255bfef95601890afd80709", "sha1_check(\"\")", kNoCause);
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// sha1_check(data, sha1_hex, [sha1_hex, ...]) returns the matched SHA-1.
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expect("81fe8bfe87576c3ecb22426f8e57847382917acf",
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"sha1_check(\"abcd\", \"81fe8bfe87576c3ecb22426f8e57847382917acf\")",
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kNoCause);
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expect("81fe8bfe87576c3ecb22426f8e57847382917acf",
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"sha1_check(\"abcd\", \"wrong_sha1\", \"81fe8bfe87576c3ecb22426f8e57847382917acf\")",
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kNoCause);
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// Or "" if there's no match.
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expect("",
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"sha1_check(\"abcd\", \"wrong_sha1\")",
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kNoCause);
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expect("",
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"sha1_check(\"abcd\", \"wrong_sha1\", \"wrong_sha2\")",
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kNoCause);
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// sha1_check() expects at least one argument.
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expect(nullptr, "sha1_check()", kArgsParsingFailure);
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}
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TEST_F(UpdaterTest, file_getprop) {
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// file_getprop() expects two arguments.
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expect(nullptr, "file_getprop()", kArgsParsingFailure);
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expect(nullptr, "file_getprop(\"arg1\")", kArgsParsingFailure);
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expect(nullptr, "file_getprop(\"arg1\", \"arg2\", \"arg3\")", kArgsParsingFailure);
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// File doesn't exist.
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expect(nullptr, "file_getprop(\"/doesntexist\", \"key1\")", kFileGetPropFailure);
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// Reject too large files (current limit = 65536).
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TemporaryFile temp_file1;
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std::string buffer(65540, '\0');
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ASSERT_TRUE(android::base::WriteStringToFile(buffer, temp_file1.path));
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// Read some keys.
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TemporaryFile temp_file2;
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std::string content("ro.product.name=tardis\n"
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"# comment\n\n\n"
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"ro.product.model\n"
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"ro.product.board = magic \n");
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ASSERT_TRUE(android::base::WriteStringToFile(content, temp_file2.path));
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std::string script1("file_getprop(\"" + std::string(temp_file2.path) +
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"\", \"ro.product.name\")");
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expect("tardis", script1.c_str(), kNoCause);
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std::string script2("file_getprop(\"" + std::string(temp_file2.path) +
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"\", \"ro.product.board\")");
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expect("magic", script2.c_str(), kNoCause);
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// No match.
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std::string script3("file_getprop(\"" + std::string(temp_file2.path) +
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"\", \"ro.product.wrong\")");
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expect("", script3.c_str(), kNoCause);
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std::string script4("file_getprop(\"" + std::string(temp_file2.path) +
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"\", \"ro.product.name=\")");
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expect("", script4.c_str(), kNoCause);
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std::string script5("file_getprop(\"" + std::string(temp_file2.path) +
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"\", \"ro.product.nam\")");
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expect("", script5.c_str(), kNoCause);
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std::string script6("file_getprop(\"" + std::string(temp_file2.path) +
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"\", \"ro.product.model\")");
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expect("", script6.c_str(), kNoCause);
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}
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TEST_F(UpdaterTest, delete) {
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// Delete none.
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expect("0", "delete()", kNoCause);
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expect("0", "delete(\"/doesntexist\")", kNoCause);
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expect("0", "delete(\"/doesntexist1\", \"/doesntexist2\")", kNoCause);
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expect("0", "delete(\"/doesntexist1\", \"/doesntexist2\", \"/doesntexist3\")", kNoCause);
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// Delete one file.
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TemporaryFile temp_file1;
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ASSERT_TRUE(android::base::WriteStringToFile("abc", temp_file1.path));
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std::string script1("delete(\"" + std::string(temp_file1.path) + "\")");
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expect("1", script1.c_str(), kNoCause);
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// Delete two files.
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TemporaryFile temp_file2;
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ASSERT_TRUE(android::base::WriteStringToFile("abc", temp_file2.path));
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TemporaryFile temp_file3;
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ASSERT_TRUE(android::base::WriteStringToFile("abc", temp_file3.path));
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std::string script2("delete(\"" + std::string(temp_file2.path) + "\", \"" +
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std::string(temp_file3.path) + "\")");
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expect("2", script2.c_str(), kNoCause);
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// Delete already deleted files.
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expect("0", script2.c_str(), kNoCause);
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// Delete one out of three.
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TemporaryFile temp_file4;
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ASSERT_TRUE(android::base::WriteStringToFile("abc", temp_file4.path));
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std::string script3("delete(\"/doesntexist1\", \"" + std::string(temp_file4.path) +
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"\", \"/doesntexist2\")");
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expect("1", script3.c_str(), kNoCause);
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}
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TEST_F(UpdaterTest, rename) {
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// rename() expects two arguments.
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expect(nullptr, "rename()", kArgsParsingFailure);
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expect(nullptr, "rename(\"arg1\")", kArgsParsingFailure);
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expect(nullptr, "rename(\"arg1\", \"arg2\", \"arg3\")", kArgsParsingFailure);
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// src_name or dst_name cannot be empty.
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expect(nullptr, "rename(\"\", \"arg2\")", kArgsParsingFailure);
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expect(nullptr, "rename(\"arg1\", \"\")", kArgsParsingFailure);
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// File doesn't exist (both of src and dst).
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expect(nullptr, "rename(\"/doesntexist\", \"/doesntexisteither\")" , kFileRenameFailure);
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// Can't create parent directory.
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TemporaryFile temp_file1;
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ASSERT_TRUE(android::base::WriteStringToFile("abc", temp_file1.path));
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std::string script1("rename(\"" + std::string(temp_file1.path) + "\", \"/proc/0/file1\")");
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expect(nullptr, script1.c_str(), kFileRenameFailure);
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// Rename.
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TemporaryFile temp_file2;
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std::string script2("rename(\"" + std::string(temp_file1.path) + "\", \"" +
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std::string(temp_file2.path) + "\")");
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expect(temp_file2.path, script2.c_str(), kNoCause);
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// Already renamed.
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expect(temp_file2.path, script2.c_str(), kNoCause);
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// Parents create successfully.
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TemporaryFile temp_file3;
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TemporaryDir td;
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std::string temp_dir(td.path);
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std::string dst_file = temp_dir + "/aaa/bbb/a.txt";
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std::string script3("rename(\"" + std::string(temp_file3.path) + "\", \"" + dst_file + "\")");
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expect(dst_file.c_str(), script3.c_str(), kNoCause);
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// Clean up the temp files under td.
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ASSERT_EQ(0, unlink(dst_file.c_str()));
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ASSERT_EQ(0, rmdir((temp_dir + "/aaa/bbb").c_str()));
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ASSERT_EQ(0, rmdir((temp_dir + "/aaa").c_str()));
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}
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TEST_F(UpdaterTest, symlink) {
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// symlink expects 1+ argument.
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expect(nullptr, "symlink()", kArgsParsingFailure);
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// symlink should fail if src is an empty string.
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TemporaryFile temp_file1;
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std::string script1("symlink(\"" + std::string(temp_file1.path) + "\", \"\")");
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expect(nullptr, script1.c_str(), kSymlinkFailure);
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std::string script2("symlink(\"" + std::string(temp_file1.path) + "\", \"src1\", \"\")");
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expect(nullptr, script2.c_str(), kSymlinkFailure);
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// symlink failed to remove old src.
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std::string script3("symlink(\"" + std::string(temp_file1.path) + "\", \"/proc\")");
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expect(nullptr, script3.c_str(), kSymlinkFailure);
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// symlink can create symlinks.
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TemporaryFile temp_file;
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std::string content = "magicvalue";
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ASSERT_TRUE(android::base::WriteStringToFile(content, temp_file.path));
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TemporaryDir td;
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std::string src1 = std::string(td.path) + "/symlink1";
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std::string src2 = std::string(td.path) + "/symlink2";
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std::string script4("symlink(\"" + std::string(temp_file.path) + "\", \"" +
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src1 + "\", \"" + src2 + "\")");
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expect("t", script4.c_str(), kNoCause);
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// Verify the created symlinks.
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struct stat sb;
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ASSERT_TRUE(lstat(src1.c_str(), &sb) == 0 && S_ISLNK(sb.st_mode));
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ASSERT_TRUE(lstat(src2.c_str(), &sb) == 0 && S_ISLNK(sb.st_mode));
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// Clean up the leftovers.
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ASSERT_EQ(0, unlink(src1.c_str()));
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ASSERT_EQ(0, unlink(src2.c_str()));
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}
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