1 files changed, 192 insertions, 0 deletions
diff --git a/cmds/idmap2/tests/CommandLineOptionsTests.cpp b/cmds/idmap2/tests/CommandLineOptionsTests.cpp
new file mode 100644
index 000000000000..b04b25660ee4
--- /dev/null
+++ b/cmds/idmap2/tests/CommandLineOptionsTests.cpp
@@ -0,0 +1,192 @@
+/*
+ * Copyright (C) 2018 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 <sys/mman.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include <fstream>
+#include <memory>
+#include <sstream>
+#include <string>
+#include <vector>
+
+#include "gmock/gmock.h"
+#include "gtest/gtest.h"
+
+#include "android-base/file.h"
+#include "androidfw/ApkAssets.h"
+#include "androidfw/Idmap.h"
+#include "androidfw/LoadedArsc.h"
+
+#include "idmap2/CommandLineOptions.h"
+#include "idmap2/Idmap.h"
+
+#include "TestHelpers.h"
+
+using ::testing::NotNull;
+
+namespace android {
+namespace idmap2 {
+
+TEST(CommandLineOptionsTests, Flag) {
+  bool foo = true, bar = false;
+
+  CommandLineOptions opts =
+      CommandLineOptions("test").OptionalFlag("--foo", "", &foo).OptionalFlag("--bar", "", &bar);
+
+  std::ostream fakeStdErr(nullptr);
+  bool success = opts.Parse({"--foo", "--bar"}, fakeStdErr);
+  ASSERT_TRUE(success);
+  ASSERT_TRUE(foo);
+  ASSERT_TRUE(bar);
+
+  foo = bar = false;
+  success = opts.Parse({"--foo"}, fakeStdErr);
+  ASSERT_TRUE(success);
+  ASSERT_TRUE(foo);
+  ASSERT_FALSE(bar);
+}
+
+TEST(CommandLineOptionsTests, MandatoryOption) {
+  std::string foo, bar;
+  CommandLineOptions opts = CommandLineOptions("test")
+                                .MandatoryOption("--foo", "", &foo)
+                                .MandatoryOption("--bar", "", &bar);
+  std::ostream fakeStdErr(nullptr);
+  bool success = opts.Parse({"--foo", "FOO", "--bar", "BAR"}, fakeStdErr);
+  ASSERT_TRUE(success);
+  ASSERT_EQ(foo, "FOO");
+  ASSERT_EQ(bar, "BAR");
+
+  success = opts.Parse({"--foo"}, fakeStdErr);
+  ASSERT_FALSE(success);
+}
+
+TEST(CommandLineOptionsTests, MandatoryOptionMultipleArgsButExpectedOnce) {
+  std::string foo;
+  CommandLineOptions opts = CommandLineOptions("test").MandatoryOption("--foo", "", &foo);
+  std::ostream fakeStdErr(nullptr);
+  bool success = opts.Parse({"--foo", "FIRST", "--foo", "SECOND"}, fakeStdErr);
+  ASSERT_TRUE(success);
+  ASSERT_EQ(foo, "SECOND");
+}
+
+TEST(CommandLineOptionsTests, MandatoryOptionMultipleArgsAndExpectedOnceOrMore) {
+  std::vector<std::string> args;
+  CommandLineOptions opts = CommandLineOptions("test").MandatoryOption("--foo", "", &args);
+  std::ostream fakeStdErr(nullptr);
+  bool success = opts.Parse({"--foo", "FOO", "--foo", "BAR"}, fakeStdErr);
+  ASSERT_TRUE(success);
+  ASSERT_EQ(args.size(), 2u);
+  ASSERT_EQ(args[0], "FOO");
+  ASSERT_EQ(args[1], "BAR");
+}
+
+TEST(CommandLineOptionsTests, OptionalOption) {
+  std::string foo, bar;
+  CommandLineOptions opts = CommandLineOptions("test")
+                                .OptionalOption("--foo", "", &foo)
+                                .OptionalOption("--bar", "", &bar);
+  std::ostream fakeStdErr(nullptr);
+  bool success = opts.Parse({"--foo", "FOO", "--bar", "BAR"}, fakeStdErr);
+  ASSERT_TRUE(success);
+  ASSERT_EQ(foo, "FOO");
+  ASSERT_EQ(bar, "BAR");
+
+  success = opts.Parse({"--foo", "BAZ"}, fakeStdErr);
+  ASSERT_TRUE(success);
+  ASSERT_EQ(foo, "BAZ");
+
+  success = opts.Parse({"--foo"}, fakeStdErr);
+  ASSERT_FALSE(success);
+
+  success = opts.Parse({"--foo", "--bar", "BAR"}, fakeStdErr);
+  ASSERT_FALSE(success);
+
+  success = opts.Parse({"--foo", "FOO", "--bar"}, fakeStdErr);
+  ASSERT_FALSE(success);
+}
+
+TEST(CommandLineOptionsTests, CornerCases) {
+  std::string foo, bar;
+  bool baz = false;
+  CommandLineOptions opts = CommandLineOptions("test")
+                                .MandatoryOption("--foo", "", &foo)
+                                .OptionalFlag("--baz", "", &baz)
+                                .OptionalOption("--bar", "", &bar);
+  std::ostream fakeStdErr(nullptr);
+  bool success = opts.Parse({"--unexpected"}, fakeStdErr);
+  ASSERT_FALSE(success);
+
+  success = opts.Parse({"--bar", "BAR"}, fakeStdErr);
+  ASSERT_FALSE(success);
+
+  success = opts.Parse({"--baz", "--foo", "FOO"}, fakeStdErr);
+  ASSERT_TRUE(success);
+  ASSERT_TRUE(baz);
+  ASSERT_EQ(foo, "FOO");
+}
+
+TEST(CommandLineOptionsTests, ConvertArgvToVector) {
+  const char* argv[] = {
+      "program-name",
+      "--foo",
+      "FOO",
+      nullptr,
+  };
+  std::unique_ptr<std::vector<std::string>> v = CommandLineOptions::ConvertArgvToVector(3, argv);
+  ASSERT_EQ(v->size(), 2ul);
+  ASSERT_EQ((*v)[0], "--foo");
+  ASSERT_EQ((*v)[1], "FOO");
+}
+
+TEST(CommandLineOptionsTests, ConvertArgvToVectorNoArgs) {
+  const char* argv[] = {
+      "program-name",
+      nullptr,
+  };
+  std::unique_ptr<std::vector<std::string>> v = CommandLineOptions::ConvertArgvToVector(1, argv);
+  ASSERT_EQ(v->size(), 0ul);
+}
+
+TEST(CommandLineOptionsTests, Usage) {
+  std::string arg1, arg2, arg3, arg4;
+  bool arg5 = false, arg6 = false;
+  std::vector<std::string> arg7;
+  CommandLineOptions opts = CommandLineOptions("test")
+                                .MandatoryOption("--aa", "description-aa", &arg1)
+                                .OptionalFlag("--bb", "description-bb", &arg5)
+                                .OptionalOption("--cc", "description-cc", &arg2)
+                                .OptionalOption("--dd", "description-dd", &arg3)
+                                .MandatoryOption("--ee", "description-ee", &arg4)
+                                .OptionalFlag("--ff", "description-ff", &arg6)
+                                .MandatoryOption("--gg", "description-gg", &arg7);
+  std::stringstream stream;
+  opts.Usage(stream);
+  const std::string s = stream.str();
+  ASSERT_NE(s.find("usage: test --aa arg [--bb] [--cc arg] [--dd arg] --ee arg [--ff] --gg arg "
+                   "[--gg arg [..]]"),
+            std::string::npos);
+  ASSERT_NE(s.find("--aa arg    description-aa"), std::string::npos);
+  ASSERT_NE(s.find("--ff        description-ff"), std::string::npos);
+  ASSERT_NE(s.find("--gg arg    description-gg (can be provided multiple times)"),
+            std::string::npos);
+}
+
+}  // namespace idmap2
+}  // namespace android