src/gromacs/commandline/tests/cmdlinehelpwriter.cpp

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  35 /*! \internal \file
  36  * \brief
  37  * Tests gmx::CommandLineHelpWriter.
  38  *
  39  * These tests fail for any change in the output, and it should be reviewed
  40  * whether the change was intentional.
  41  * For development, the tests can be run with a '-stdout' command-line option
  42  * to print out the help to stdout instead of using the XML reference
  43  * framework.
  44  *
  45  * \author Teemu Murtola <teemu.murtola@gmail.com>
  46  * \ingroup module_commandline
  47  */
  48 #include "gmxpre.h"
  49
  50 #include "gromacs/commandline/cmdlinehelpwriter.h"
  51
  52 #include <gtest/gtest.h>
  53
  54 #include "gromacs/commandline/cmdlinehelpcontext.h"
  55 #include "gromacs/math/vectypes.h"
  56 #include "gromacs/options/basicoptions.h"
  57 #include "gromacs/options/filenameoption.h"
  58 #include "gromacs/options/options.h"
  59 #include "gromacs/utility/arrayref.h"
  60 #include "gromacs/utility/stringstream.h"
  61 #include "gromacs/utility/textwriter.h"
  62
  63 #include "testutils/stringtest.h"
  64
  65 namespace
  66 {
  67
  68 class CommandLineHelpWriterTest : public ::gmx::test::StringTestBase
  69 {
  70     public:
  71         CommandLineHelpWriterTest() : bHidden_(false) {}
  72
  73         void checkHelp(gmx::CommandLineHelpWriter *writer);
  74
  75         bool                       bHidden_;
  76 };
  77
  78 void CommandLineHelpWriterTest::checkHelp(gmx::CommandLineHelpWriter *writer)
  79 {
  80     gmx::StringOutputStream     stream;
  81     gmx::TextWriter             streamWriter(&stream);
  82     gmx::CommandLineHelpContext context(&streamWriter, gmx::eHelpOutputFormat_Console,
  83                                         NULL, "test");
  84     context.setShowHidden(bHidden_);
  85     writer->writeHelp(context);
  86     stream.close();
  87
  88     checkText(stream.toString(), "HelpText");
  89 }
  90
  91
  92 /********************************************************************
  93  * Tests start here
  94  */
  95
  96 /*
  97  * Tests help printing for each option type, but doesn't contain much
  98  * variablity in the options.
  99  */
 100 TEST_F(CommandLineHelpWriterTest, HandlesOptionTypes)
 101 {
 102     using namespace gmx;
 103
 104     Options options;
 105     options.addOption(BooleanOption("bool").description("Boolean option")
 106                           .defaultValue(true));
 107     options.addOption(BooleanOption("hidden").description("Hidden option")
 108                           .hidden().defaultValue(true));
 109     options.addOption(IntegerOption("int").description("Integer option")
 110                           .defaultValue(2));
 111     ivec intvec = {1, 2, 3};
 112     options.addOption(IntegerOption("ivec").description("Integer vector option")
 113                           .vector().store(intvec));
 114     options.addOption(DoubleOption("double").description("Double option")
 115                           .defaultValue(2.5));
 116     dvec dblvec = {1.1, 2.3, 3.2};
 117     options.addOption(DoubleOption("dvec").description("Double vector option")
 118                           .vector().store(dblvec));
 119     options.addOption(DoubleOption("time").description("Time option (%t)")
 120                           .timeValue().defaultValue(10.0));
 121     options.addOption(StringOption("string").description("String option")
 122                           .defaultValue("test"));
 123     const char * const enumValues[] = { "no", "opt1", "opt2" };
 124     options.addOption(StringOption("enum").description("Enum option")
 125                           .enumValue(enumValues).defaultEnumIndex(0));
 126     options.addOption(EnumIntOption("ienum").description("Enum option")
 127                           .enumValue(enumValues).defaultValue(1));
 128
 129     std::string filename;
 130     options.addOption(FileNameOption("f")
 131                           .description("Input file description")
 132                           .filetype(eftTrajectory).inputFile().required()
 133                           .defaultBasename("traj"));
 134     options.addOption(FileNameOption("mult")
 135                           .description("Multiple file description")
 136                           .filetype(eftTrajectory).inputFile().multiValue()
 137                           .defaultBasename("traj"));
 138     options.addOption(FileNameOption("lib")
 139                           .description("Library file description")
 140                           .filetype(eftGenericData).inputFile().libraryFile()
 141                           .defaultBasename("libdata"));
 142     options.addOption(FileNameOption("io")
 143                           .store(&filename)
 144                           .description("Input/Output file description")
 145                           .filetype(eftGenericData).inputOutputFile()
 146                           .defaultBasename("inout"));
 147     options.addOption(FileNameOption("o")
 148                           .description("Output file description")
 149                           .filetype(eftPlot).outputFile());
 150
 151     CommandLineHelpWriter writer(options);
 152     bHidden_ = true;
 153     checkHelp(&writer);
 154 }
 155
 156 //! Enum value for testing.
 157 enum TestEnum {
 158     eFoo, eBar
 159 };
 160
 161 /*
 162  * Tests that default values taken from variables are properly visible in the
 163  * help output.
 164  */
 165 TEST_F(CommandLineHelpWriterTest, HandlesDefaultValuesFromVariables)
 166 {
 167     using namespace gmx;
 168
 169     Options options;
 170
 171     bool    bValue = true;
 172     options.addOption(BooleanOption("bool").description("Boolean option")
 173                           .store(&bValue));
 174
 175     int ivalue = 3;
 176     options.addOption(IntegerOption("int").description("Integer option")
 177                           .store(&ivalue));
 178
 179     int iavalue[] = {2, 3};
 180     options.addOption(IntegerOption("int2").description("Integer 2-value option")
 181                           .store(iavalue).valueCount(2));
 182
 183     std::vector<std::string> svalues;
 184     svalues.emplace_back("foo");
 185     options.addOption(StringOption("str").description("String option")
 186                           .storeVector(&svalues).multiValue());
 187
 188     TestEnum          evalue    = eBar;
 189     const char *const allowed[] = { "foo", "bar" };
 190     options.addOption(EnumOption<TestEnum>("enum").description("Enum option")
 191                           .enumValue(allowed).store(&evalue));
 192
 193     CommandLineHelpWriter writer(options);
 194     checkHelp(&writer);
 195 }
 196
 197 /*
 198  * Tests help printing with file name options with various values that don't
 199  * fit into the allocated columns.
 200  */
 201 TEST_F(CommandLineHelpWriterTest, HandlesLongFileOptions)
 202 {
 203     using gmx::FileNameOption;
 204     using gmx::eftGenericData;
 205     using gmx::eftTrajectory;
 206
 207     gmx::Options options;
 208     options.addOption(FileNameOption("f")
 209                           .description("File name option with a long value")
 210                           .filetype(eftTrajectory).inputFile().required()
 211                           .defaultBasename("path/to/long/trajectory/name"));
 212     options.addOption(FileNameOption("f2")
 213                           .description("File name option with a long value")
 214                           .filetype(eftTrajectory).inputFile().required()
 215                           .defaultBasename("path/to/long/trajectory"));
 216     options.addOption(FileNameOption("lib")
 217                           .description("File name option with a long value and type")
 218                           .filetype(eftTrajectory).inputFile().libraryFile()
 219                           .defaultBasename("path/to/long/trajectory/name"));
 220     options.addOption(FileNameOption("longfileopt")
 221                           .description("File name option with a long name")
 222                           .filetype(eftGenericData).inputFile()
 223                           .defaultBasename("deffile"));
 224     options.addOption(FileNameOption("longfileopt2")
 225                           .description("File name option with multiple long fields")
 226                           .filetype(eftGenericData).inputFile().libraryFile()
 227                           .defaultBasename("path/to/long/file/name"));
 228
 229     gmx::CommandLineHelpWriter writer(options);
 230     checkHelp(&writer);
 231 }
 232
 233 /*
 234  * Tests help printing with general options with various values that don't
 235  * fit into the allocated columns.
 236  */
 237 TEST_F(CommandLineHelpWriterTest, HandlesLongOptions)
 238 {
 239     using gmx::BooleanOption;
 240     using gmx::DoubleOption;
 241     using gmx::StringOption;
 242
 243     gmx::Options options;
 244     options.addOption(BooleanOption("longboolean")
 245                           .description("Boolean option with a long name")
 246                           .defaultValue(true));
 247     dvec dblvec = {1.135, 2.32, 3.2132};
 248     options.addOption(DoubleOption("dvec").description("Double vector option")
 249                           .vector().store(dblvec));
 250     std::vector<std::string> values;
 251     values.emplace_back("A very long string value that overflows even the description column");
 252     values.emplace_back("Another very long string value that overflows even the description column");
 253     options.addOption(StringOption("string")
 254                           .description("String option with very long values (may "
 255                                        "be less relevant with selections having "
 256                                        "their own option type)")
 257                           .storeVector(&values));
 258
 259     gmx::CommandLineHelpWriter writer(options);
 260     checkHelp(&writer);
 261 }
 262
 263 /* TODO: Add corresponding tests to either the selection module, or as part of
 264  * trajectoryanalysis tests.
 265  * Tests help printing with selection options with values.
 266  */
 267 #if 0
 268 TEST_F(CommandLineHelpWriterTest, HandlesSelectionOptions)
 269 {
 270     using gmx::SelectionFileOption;
 271     using gmx::SelectionOption;
 272
 273     gmx::Options                options;
 274     gmx::SelectionCollection    selections;
 275     gmx::SelectionOptionManager manager(&selections);
 276     options.addManager(&manager);
 277     options.addOption(SelectionFileOption("sf"));
 278     options.addOption(SelectionOption("refsel").required()
 279                           .description("Reference selection option"));
 280     options.addOption(SelectionOption("sel").required().valueCount(2)
 281                           .description("Selection option"));
 282     options.finish();
 283     manager.parseRequestedFromString(
 284             "resname SOL;"
 285             "surface = within 0.5 of resname SOL;"
 286             "group \"Protein\" and surface;"
 287             "group \"Protein\" and not surface;");
 288
 289     gmx::CommandLineHelpWriter writer(options);
 290     checkHelp(&writer);
 291 }
 292 #endif
 293
 294 /*
 295  * Tests help output with option groups.
 296  */
 297 TEST_F(CommandLineHelpWriterTest, HandlesOptionGroups)
 298 {
 299     using gmx::IntegerOption;
 300
 301     gmx::Options            options;
 302     gmx::IOptionsContainer &group1 = options.addGroup();
 303     gmx::IOptionsContainer &group2 = options.addGroup();
 304     group2.addOption(IntegerOption("sub2").description("Option in group 2"));
 305     group1.addOption(IntegerOption("sub11").description("Option in group 1"));
 306     options.addOption(IntegerOption("main").description("Option in root group"));
 307     group1.addOption(IntegerOption("sub12").description("Option in group 1"));
 308
 309     gmx::CommandLineHelpWriter writer(options);
 310     checkHelp(&writer);
 311 }
 312
 313 /*
 314  * Tests help output using a help text.
 315  */
 316 TEST_F(CommandLineHelpWriterTest, HandlesHelpText)
 317 {
 318     const char *const help[] = {
 319         "Help text",
 320         "for testing."
 321     };
 322     using gmx::IntegerOption;
 323
 324     gmx::Options options;
 325     options.addOption(IntegerOption("int").description("Integer option")
 326                           .defaultValue(2));
 327
 328     gmx::CommandLineHelpWriter writer(options);
 329     writer.setHelpText(help);
 330     checkHelp(&writer);
 331 }
 332
 333 } // namespace