2 * This file is part of the GROMACS molecular simulation package.
4 * Copyright (c) 2010-2018, The GROMACS development team.
5 * Copyright (c) 2019,2021, by the GROMACS development team, led by
6 * Mark Abraham, David van der Spoel, Berk Hess, and Erik Lindahl,
7 * and including many others, as listed in the AUTHORS file in the
8 * top-level source directory and at http://www.gromacs.org.
10 * GROMACS is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU Lesser General Public License
12 * as published by the Free Software Foundation; either version 2.1
13 * of the License, or (at your option) any later version.
15 * GROMACS is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * Lesser General Public License for more details.
20 * You should have received a copy of the GNU Lesser General Public
21 * License along with GROMACS; if not, see
22 * http://www.gnu.org/licenses, or write to the Free Software Foundation,
23 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
25 * If you want to redistribute modifications to GROMACS, please
26 * consider that scientific software is very special. Version
27 * control is crucial - bugs must be traceable. We will be happy to
28 * consider code for inclusion in the official distribution, but
29 * derived work must not be called official GROMACS. Details are found
30 * in the README & COPYING files - if they are missing, get the
31 * official version at http://www.gromacs.org.
33 * To help us fund GROMACS development, we humbly ask that you cite
34 * the research papers on the package. Check out http://www.gromacs.org.
38 * Tests gmx::CommandLineParser.
40 * These tests exercise a large fraction of the code, so they may
41 * catch errors in other parts than just in command-line parsing.
43 * \author Teemu Murtola <teemu.murtola@gmail.com>
44 * \ingroup module_commandline
48 #include "gromacs/commandline/cmdlineparser.h"
52 #include <gtest/gtest.h>
54 #include "gromacs/options/basicoptions.h"
55 #include "gromacs/options/options.h"
57 #include "testutils/cmdlinetest.h"
58 #include "testutils/testasserts.h"
63 using gmx::test::CommandLine;
65 class CommandLineParserTest : public ::testing::Test
68 CommandLineParserTest();
70 gmx::Options options_;
71 gmx::CommandLineParser parser_;
73 std::vector<int> ivalues_;
74 std::vector<double> dvalues_;
77 std::string stringValue_;
80 CommandLineParserTest::CommandLineParserTest() :
81 parser_(&options_), flag_(false), ivalue1p_(0), ivalue12_(0)
83 using gmx::BooleanOption;
84 using gmx::DoubleOption;
85 using gmx::IntegerOption;
86 using gmx::StringOption;
87 options_.addOption(BooleanOption("flag").store(&flag_));
88 options_.addOption(IntegerOption("mvi").storeVector(&ivalues_).multiValue());
89 options_.addOption(DoubleOption("mvd").storeVector(&dvalues_).allowMultiple());
90 options_.addOption(IntegerOption("1p").store(&ivalue1p_));
91 options_.addOption(IntegerOption("12").store(&ivalue12_));
92 options_.addOption(StringOption("str").store(&stringValue_));
95 TEST_F(CommandLineParserTest, HandlesSingleValues)
97 const char* const cmdline[] = { "test", "-flag", "yes", "-mvi", "2", "-mvd", "2.7" };
98 CommandLine args(cmdline);
99 ASSERT_NO_THROW_GMX(parser_.parse(&args.argc(), args.argv()));
100 ASSERT_NO_THROW_GMX(options_.finish());
101 EXPECT_EQ(7, args.argc());
102 EXPECT_STREQ("test", args.arg(0));
105 ASSERT_EQ(1U, ivalues_.size());
106 EXPECT_EQ(2, ivalues_[0]);
107 ASSERT_EQ(1U, dvalues_.size());
108 EXPECT_DOUBLE_EQ(2.7, dvalues_[0]);
111 TEST_F(CommandLineParserTest, HandlesBooleanWithoutArgument)
113 const char* const cmdline[] = { "test", "-flag" };
114 CommandLine args(cmdline);
115 ASSERT_NO_THROW_GMX(parser_.parse(&args.argc(), args.argv()));
116 ASSERT_NO_THROW_GMX(options_.finish());
117 EXPECT_EQ(2, args.argc());
118 EXPECT_STREQ("test", args.arg(0));
123 TEST_F(CommandLineParserTest, HandlesBooleanAsNoWithoutArgument)
125 const char* const cmdline[] = { "test", "-noflag" };
126 CommandLine args(cmdline);
127 ASSERT_NO_THROW_GMX(parser_.parse(&args.argc(), args.argv()));
128 ASSERT_NO_THROW_GMX(options_.finish());
129 EXPECT_EQ(2, args.argc());
130 EXPECT_STREQ("test", args.arg(0));
135 TEST_F(CommandLineParserTest, ThrowsWithBooleanAsNoWithArgument)
137 const char* const cmdline[] = { "test", "-noflag", "no" };
138 CommandLine args(cmdline);
139 EXPECT_THROW_GMX(parser_.parse(&args.argc(), args.argv()), gmx::InvalidInputError);
142 TEST_F(CommandLineParserTest, HandlesNegativeNumbers)
144 const char* const cmdline[] = { "test", "-mvi", "1", "-2", "-mvd", "-2.7" };
145 CommandLine args(cmdline);
146 ASSERT_NO_THROW_GMX(parser_.parse(&args.argc(), args.argv()));
147 ASSERT_NO_THROW_GMX(options_.finish());
148 EXPECT_EQ(6, args.argc());
149 EXPECT_STREQ("test", args.arg(0));
151 ASSERT_EQ(2U, ivalues_.size());
152 EXPECT_EQ(1, ivalues_[0]);
153 EXPECT_EQ(-2, ivalues_[1]);
154 ASSERT_EQ(1U, dvalues_.size());
155 EXPECT_DOUBLE_EQ(-2.7, dvalues_[0]);
158 TEST_F(CommandLineParserTest, HandlesString)
160 const char* const cmdline[] = { "test", "-str", "text" };
161 CommandLine args(cmdline);
162 ASSERT_NO_THROW_GMX(parser_.parse(&args.argc(), args.argv()));
163 ASSERT_NO_THROW_GMX(options_.finish());
164 EXPECT_EQ(3, args.argc());
165 EXPECT_STREQ("test", args.arg(0));
167 EXPECT_EQ("text", stringValue_);
170 TEST_F(CommandLineParserTest, RejectsStringWithMultipleValues)
172 const char* const cmdline[] = { "test", "-str", "text", "excess text" };
173 CommandLine args(cmdline);
174 EXPECT_THROW_GMX(parser_.parse(&args.argc(), args.argv()), gmx::InvalidInputError);
177 TEST_F(CommandLineParserTest, HandlesDoubleDashOptionPrefix)
179 const char* const cmdline[] = { "test", "--mvi", "1", "-2", "--mvd", "-2.7" };
180 CommandLine args(cmdline);
181 ASSERT_NO_THROW_GMX(parser_.parse(&args.argc(), args.argv()));
182 ASSERT_NO_THROW_GMX(options_.finish());
183 EXPECT_EQ(6, args.argc());
184 EXPECT_STREQ("test", args.arg(0));
186 ASSERT_EQ(2U, ivalues_.size());
187 EXPECT_EQ(1, ivalues_[0]);
188 EXPECT_EQ(-2, ivalues_[1]);
189 ASSERT_EQ(1U, dvalues_.size());
190 EXPECT_DOUBLE_EQ(-2.7, dvalues_[0]);
193 TEST_F(CommandLineParserTest, HandlesOptionsStartingWithNumbers)
195 const char* const cmdline[] = { "test", "--12", "1", "-1p", "-12" };
196 CommandLine args(cmdline);
197 ASSERT_NO_THROW_GMX(parser_.parse(&args.argc(), args.argv()));
198 ASSERT_NO_THROW_GMX(options_.finish());
199 EXPECT_EQ(5, args.argc());
200 EXPECT_STREQ("test", args.arg(0));
202 EXPECT_EQ(1, ivalue12_);
203 EXPECT_EQ(-12, ivalue1p_);
206 TEST_F(CommandLineParserTest, HandlesSkipUnknown)
208 const char* const cmdline[] = { "test", "-unknown1", "-flag", "-unknown2", "value",
209 "-mvi", "2", "-mvd", "2.7", "-unknown3" };
210 CommandLine args(cmdline);
211 parser_.skipUnknown(true);
212 ASSERT_NO_THROW_GMX(parser_.parse(&args.argc(), args.argv()));
213 ASSERT_NO_THROW_GMX(options_.finish());
215 ASSERT_EQ(5, args.argc());
216 EXPECT_STREQ("test", args.arg(0));
217 EXPECT_STREQ("-unknown1", args.arg(1));
218 EXPECT_STREQ("-unknown2", args.arg(2));
219 EXPECT_STREQ("value", args.arg(3));
220 EXPECT_STREQ("-unknown3", args.arg(4));
221 EXPECT_TRUE(args.arg(5) == nullptr);
224 ASSERT_EQ(1U, ivalues_.size());
225 EXPECT_EQ(2, ivalues_[0]);
226 ASSERT_EQ(1U, dvalues_.size());
227 EXPECT_DOUBLE_EQ(2.7, dvalues_[0]);
230 TEST_F(CommandLineParserTest, RejectsPositionalArgumentsByDefault)
232 // Ensures that "gmx trjconv f" gets rejected.
233 const char* const cmdline[] = { "test", "module", "positional" };
234 CommandLine args(cmdline);
235 EXPECT_THROW_GMX(parser_.parse(&args.argc(), args.argv()), gmx::InvalidInputError);
238 TEST_F(CommandLineParserTest, CanAllowPositionalArguments)
240 // Ensures that "gmx help trjconv" works
241 const char* const cmdline[] = { "test", "module", "positional", "-flag" };
242 CommandLine args(cmdline);
243 parser_.allowPositionalArguments(true);
244 ASSERT_NO_THROW_GMX(parser_.parse(&args.argc(), args.argv()));
245 ASSERT_NO_THROW_GMX(options_.finish());
246 ASSERT_EQ(4, args.argc());
247 EXPECT_STREQ("test", args.arg(0));
248 EXPECT_STREQ("module", args.arg(1));
249 EXPECT_STREQ("positional", args.arg(2));
252 TEST_F(CommandLineParserTest, CannotHavePositionalArgumentsAfterOptions)
254 // Even for the options that can't have arbitrary numbers of
255 // values, there's no way to check whether there's been enough
256 // values provided, so we can't have positional arguments after
258 const char* const cmdline[] = { "test", "module", "-1p", "2", "positional" };
259 CommandLine args(cmdline);
260 parser_.allowPositionalArguments(true);
261 EXPECT_THROW_GMX(parser_.parse(&args.argc(), args.argv()), gmx::InvalidInputError);