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// Copyright 2014 The Chromium OS Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <cstdint>
#include <cstdio>
#include <sysexits.h>
#include <base/command_line.h>
#include <base/macros.h>
#include <brillo/flag_helper.h>
#include <gtest/gtest.h>
namespace brillo {
class FlagHelperTest : public ::testing::Test {
public:
FlagHelperTest() {}
~FlagHelperTest() override { brillo::FlagHelper::ResetForTesting(); }
static void SetUpTestCase() { base::CommandLine::Init(0, nullptr); }
};
// Test that the DEFINE_xxxx macros can create the respective variables
// correctly with the default value.
TEST_F(FlagHelperTest, Defaults) {
DEFINE_bool(bool1, true, "Test bool flag");
DEFINE_bool(bool2, false, "Test bool flag");
DEFINE_int32(int32_1, INT32_MIN, "Test int32 flag");
DEFINE_int32(int32_2, 0, "Test int32 flag");
DEFINE_int32(int32_3, INT32_MAX, "Test int32 flag");
DEFINE_int64(int64_1, INT64_MIN, "Test int64 flag");
DEFINE_int64(int64_2, 0, "Test int64 flag");
DEFINE_int64(int64_3, INT64_MAX, "Test int64 flag");
DEFINE_uint64(uint64_1, 0, "Test uint64 flag");
DEFINE_uint64(uint64_2, UINT_LEAST64_MAX, "Test uint64 flag");
DEFINE_double(double_1, -100.5, "Test double flag");
DEFINE_double(double_2, 0, "Test double flag");
DEFINE_double(double_3, 100.5, "Test double flag");
DEFINE_string(string_1, "", "Test string flag");
DEFINE_string(string_2, "value", "Test string flag");
const char* argv[] = {"test_program"};
base::CommandLine command_line(arraysize(argv), argv);
brillo::FlagHelper::GetInstance()->set_command_line_for_testing(
&command_line);
brillo::FlagHelper::Init(arraysize(argv), argv, "TestDefaultTrue");
EXPECT_TRUE(FLAGS_bool1);
EXPECT_FALSE(FLAGS_bool2);
EXPECT_EQ(FLAGS_int32_1, INT32_MIN);
EXPECT_EQ(FLAGS_int32_2, 0);
EXPECT_EQ(FLAGS_int32_3, INT32_MAX);
EXPECT_EQ(FLAGS_int64_1, INT64_MIN);
EXPECT_EQ(FLAGS_int64_2, 0);
EXPECT_EQ(FLAGS_int64_3, INT64_MAX);
EXPECT_EQ(FLAGS_uint64_1, 0);
EXPECT_EQ(FLAGS_uint64_2, UINT_LEAST64_MAX);
EXPECT_DOUBLE_EQ(FLAGS_double_1, -100.5);
EXPECT_DOUBLE_EQ(FLAGS_double_2, 0);
EXPECT_DOUBLE_EQ(FLAGS_double_3, 100.5);
EXPECT_STREQ(FLAGS_string_1.c_str(), "");
EXPECT_STREQ(FLAGS_string_2.c_str(), "value");
}
// Test that command line flag values are parsed and update the flag
// variable values correctly when using double '--' flags
TEST_F(FlagHelperTest, SetValueDoubleDash) {
DEFINE_bool(bool1, false, "Test bool flag");
DEFINE_bool(bool2, true, "Test bool flag");
DEFINE_bool(bool3, false, "Test bool flag");
DEFINE_bool(bool4, true, "Test bool flag");
DEFINE_int32(int32_1, 1, "Test int32 flag");
DEFINE_int32(int32_2, 1, "Test int32 flag");
DEFINE_int32(int32_3, 1, "Test int32 flag");
DEFINE_int64(int64_1, 1, "Test int64 flag");
DEFINE_int64(int64_2, 1, "Test int64 flag");
DEFINE_int64(int64_3, 1, "Test int64 flag");
DEFINE_uint64(uint64_1, 1, "Test uint64 flag");
DEFINE_uint64(uint64_2, 1, "Test uint64 flag");
DEFINE_double(double_1, 1, "Test double flag");
DEFINE_double(double_2, 1, "Test double flag");
DEFINE_double(double_3, 1, "Test double flag");
DEFINE_string(string_1, "default", "Test string flag");
DEFINE_string(string_2, "default", "Test string flag");
const char* argv[] = {"test_program",
"--bool1",
"--nobool2",
"--bool3=true",
"--bool4=false",
"--int32_1=-2147483648",
"--int32_2=0",
"--int32_3=2147483647",
"--int64_1=-9223372036854775808",
"--int64_2=0",
"--int64_3=9223372036854775807",
"--uint64_1=0",
"--uint64_2=18446744073709551615",
"--double_1=-100.5",
"--double_2=0",
"--double_3=100.5",
"--string_1=",
"--string_2=value"};
base::CommandLine command_line(arraysize(argv), argv);
brillo::FlagHelper::GetInstance()->set_command_line_for_testing(
&command_line);
brillo::FlagHelper::Init(arraysize(argv), argv, "TestDefaultTrue");
EXPECT_TRUE(FLAGS_bool1);
EXPECT_FALSE(FLAGS_bool2);
EXPECT_TRUE(FLAGS_bool3);
EXPECT_FALSE(FLAGS_bool4);
EXPECT_EQ(FLAGS_int32_1, INT32_MIN);
EXPECT_EQ(FLAGS_int32_2, 0);
EXPECT_EQ(FLAGS_int32_3, INT32_MAX);
EXPECT_EQ(FLAGS_int64_1, INT64_MIN);
EXPECT_EQ(FLAGS_int64_2, 0);
EXPECT_EQ(FLAGS_int64_3, INT64_MAX);
EXPECT_EQ(FLAGS_uint64_1, 0);
EXPECT_EQ(FLAGS_uint64_2, UINT_LEAST64_MAX);
EXPECT_DOUBLE_EQ(FLAGS_double_1, -100.5);
EXPECT_DOUBLE_EQ(FLAGS_double_2, 0);
EXPECT_DOUBLE_EQ(FLAGS_double_3, 100.5);
EXPECT_STREQ(FLAGS_string_1.c_str(), "");
EXPECT_STREQ(FLAGS_string_2.c_str(), "value");
}
// Test that command line flag values are parsed and update the flag
// variable values correctly when using single '-' flags
TEST_F(FlagHelperTest, SetValueSingleDash) {
DEFINE_bool(bool1, false, "Test bool flag");
DEFINE_bool(bool2, true, "Test bool flag");
DEFINE_int32(int32_1, 1, "Test int32 flag");
DEFINE_int32(int32_2, 1, "Test int32 flag");
DEFINE_int32(int32_3, 1, "Test int32 flag");
DEFINE_int64(int64_1, 1, "Test int64 flag");
DEFINE_int64(int64_2, 1, "Test int64 flag");
DEFINE_int64(int64_3, 1, "Test int64 flag");
DEFINE_uint64(uint64_1, 1, "Test uint64 flag");
DEFINE_uint64(uint64_2, 1, "Test uint64 flag");
DEFINE_double(double_1, 1, "Test double flag");
DEFINE_double(double_2, 1, "Test double flag");
DEFINE_double(double_3, 1, "Test double flag");
DEFINE_string(string_1, "default", "Test string flag");
DEFINE_string(string_2, "default", "Test string flag");
const char* argv[] = {"test_program",
"-bool1",
"-nobool2",
"-int32_1=-2147483648",
"-int32_2=0",
"-int32_3=2147483647",
"-int64_1=-9223372036854775808",
"-int64_2=0",
"-int64_3=9223372036854775807",
"-uint64_1=0",
"-uint64_2=18446744073709551615",
"-double_1=-100.5",
"-double_2=0",
"-double_3=100.5",
"-string_1=",
"-string_2=value"};
base::CommandLine command_line(arraysize(argv), argv);
brillo::FlagHelper::GetInstance()->set_command_line_for_testing(
&command_line);
brillo::FlagHelper::Init(arraysize(argv), argv, "TestDefaultTrue");
EXPECT_TRUE(FLAGS_bool1);
EXPECT_FALSE(FLAGS_bool2);
EXPECT_EQ(FLAGS_int32_1, INT32_MIN);
EXPECT_EQ(FLAGS_int32_2, 0);
EXPECT_EQ(FLAGS_int32_3, INT32_MAX);
EXPECT_EQ(FLAGS_int64_1, INT64_MIN);
EXPECT_EQ(FLAGS_int64_2, 0);
EXPECT_EQ(FLAGS_int64_3, INT64_MAX);
EXPECT_EQ(FLAGS_uint64_1, 0);
EXPECT_EQ(FLAGS_uint64_2, UINT_LEAST64_MAX);
EXPECT_DOUBLE_EQ(FLAGS_double_1, -100.5);
EXPECT_DOUBLE_EQ(FLAGS_double_2, 0);
EXPECT_DOUBLE_EQ(FLAGS_double_3, 100.5);
EXPECT_STREQ(FLAGS_string_1.c_str(), "");
EXPECT_STREQ(FLAGS_string_2.c_str(), "value");
}
// Test that a duplicated flag on the command line picks up the last
// value set.
TEST_F(FlagHelperTest, DuplicateSetValue) {
DEFINE_int32(int32_1, 0, "Test in32 flag");
const char* argv[] = {"test_program", "--int32_1=5", "--int32_1=10"};
base::CommandLine command_line(arraysize(argv), argv);
brillo::FlagHelper::GetInstance()->set_command_line_for_testing(
&command_line);
brillo::FlagHelper::Init(arraysize(argv), argv, "TestDuplicateSetvalue");
EXPECT_EQ(FLAGS_int32_1, 10);
}
// Test that flags set after the -- marker are not parsed as command line flags
TEST_F(FlagHelperTest, FlagTerminator) {
DEFINE_int32(int32_1, 0, "Test int32 flag");
const char* argv[] = {"test_program", "--int32_1=5", "--", "--int32_1=10"};
base::CommandLine command_line(arraysize(argv), argv);
brillo::FlagHelper::GetInstance()->set_command_line_for_testing(
&command_line);
brillo::FlagHelper::Init(arraysize(argv), argv, "TestFlagTerminator");
EXPECT_EQ(FLAGS_int32_1, 5);
}
// Test that help messages are generated correctly when the --help flag
// is passed to the program.
TEST_F(FlagHelperTest, HelpMessage) {
DEFINE_bool(bool_1, true, "Test bool flag");
DEFINE_int32(int_1, 0, "Test int flag");
DEFINE_int64(int64_1, 0, "Test int64 flag");
DEFINE_uint64(uint64_1, 0, "Test uint64 flag");
DEFINE_double(double_1, 0, "Test double flag");
DEFINE_string(string_1, "", "Test string flag");
const char* argv[] = {"test_program", "--int_1=value", "--help"};
base::CommandLine command_line(arraysize(argv), argv);
brillo::FlagHelper::GetInstance()->set_command_line_for_testing(
&command_line);
FILE* orig = stdout;
stdout = stderr;
ASSERT_EXIT(
brillo::FlagHelper::Init(arraysize(argv), argv, "TestHelpMessage"),
::testing::ExitedWithCode(EX_OK),
"TestHelpMessage\n\n"
" --bool_1 \\(Test bool flag\\) type: bool default: true\n"
" --double_1 \\(Test double flag\\) type: double default: 0\n"
" --help \\(Show this help message\\) type: bool default: false\n"
" --int64_1 \\(Test int64 flag\\) type: int64 default: 0\n"
" --int_1 \\(Test int flag\\) type: int default: 0\n"
" --string_1 \\(Test string flag\\) type: string default: \"\"\n"
" --uint64_1 \\(Test uint64 flag\\) type: uint64 default: 0\n");
stdout = orig;
}
// Test that passing in unknown command line flags causes the program
// to exit with EX_USAGE error code and corresponding error message.
TEST_F(FlagHelperTest, UnknownFlag) {
const char* argv[] = {"test_program", "--flag=value"};
base::CommandLine command_line(arraysize(argv), argv);
brillo::FlagHelper::GetInstance()->set_command_line_for_testing(
&command_line);
FILE* orig = stdout;
stdout = stderr;
ASSERT_EXIT(brillo::FlagHelper::Init(arraysize(argv), argv, "TestIntExit"),
::testing::ExitedWithCode(EX_USAGE),
"ERROR: unknown command line flag 'flag'");
stdout = orig;
}
// Test that when passing an incorrect/unparsable type to a command line flag,
// the program exits with code EX_DATAERR and outputs a corresponding message.
TEST_F(FlagHelperTest, BoolParseError) {
DEFINE_bool(bool_1, 0, "Test bool flag");
const char* argv[] = {"test_program", "--bool_1=value"};
base::CommandLine command_line(arraysize(argv), argv);
brillo::FlagHelper::GetInstance()->set_command_line_for_testing(
&command_line);
FILE* orig = stdout;
stdout = stderr;
ASSERT_EXIT(
brillo::FlagHelper::Init(arraysize(argv), argv, "TestBoolParseError"),
::testing::ExitedWithCode(EX_DATAERR),
"ERROR: illegal value 'value' specified for bool flag 'bool_1'");
stdout = orig;
}
// Test that when passing an incorrect/unparsable type to a command line flag,
// the program exits with code EX_DATAERR and outputs a corresponding message.
TEST_F(FlagHelperTest, Int32ParseError) {
DEFINE_int32(int_1, 0, "Test int flag");
const char* argv[] = {"test_program", "--int_1=value"};
base::CommandLine command_line(arraysize(argv), argv);
brillo::FlagHelper::GetInstance()->set_command_line_for_testing(
&command_line);
FILE* orig = stdout;
stdout = stderr;
ASSERT_EXIT(brillo::FlagHelper::Init(arraysize(argv),
argv,
"TestInt32ParseError"),
::testing::ExitedWithCode(EX_DATAERR),
"ERROR: illegal value 'value' specified for int flag 'int_1'");
stdout = orig;
}
// Test that when passing an incorrect/unparsable type to a command line flag,
// the program exits with code EX_DATAERR and outputs a corresponding message.
TEST_F(FlagHelperTest, Int64ParseError) {
DEFINE_int64(int64_1, 0, "Test int64 flag");
const char* argv[] = {"test_program", "--int64_1=value"};
base::CommandLine command_line(arraysize(argv), argv);
brillo::FlagHelper::GetInstance()->set_command_line_for_testing(
&command_line);
FILE* orig = stdout;
stdout = stderr;
ASSERT_EXIT(
brillo::FlagHelper::Init(arraysize(argv), argv, "TestInt64ParseError"),
::testing::ExitedWithCode(EX_DATAERR),
"ERROR: illegal value 'value' specified for int64 flag "
"'int64_1'");
stdout = orig;
}
// Test that when passing an incorrect/unparsable type to a command line flag,
// the program exits with code EX_DATAERR and outputs a corresponding message.
TEST_F(FlagHelperTest, UInt64ParseError) {
DEFINE_uint64(uint64_1, 0, "Test uint64 flag");
const char* argv[] = {"test_program", "--uint64_1=value"};
base::CommandLine command_line(arraysize(argv), argv);
brillo::FlagHelper::GetInstance()->set_command_line_for_testing(
&command_line);
FILE* orig = stdout;
stdout = stderr;
ASSERT_EXIT(
brillo::FlagHelper::Init(arraysize(argv), argv, "TestUInt64ParseError"),
::testing::ExitedWithCode(EX_DATAERR),
"ERROR: illegal value 'value' specified for uint64 flag "
"'uint64_1'");
stdout = orig;
}
} // namespace brillo
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