src/gromacs/commandline/tests/pargs.cpp

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  35 /*! \internal \file
  36  * \brief
  37  * Tests parse_common_args().
  38  *
  39  * Currently, negative tests are not possible, because those trigger
  40  * gmx_fatal() and terminate the whole test binary.
  41  *
  42  * \author Teemu Murtola <teemu.murtola@gmail.com>
  43  * \ingroup module_commandline
  44  */
  45 #include "gmxpre.h"
  46
  47 #include "gromacs/commandline/pargs.h"
  48
  49 #include <string>
  50
  51 #include <gtest/gtest.h>
  52
  53 #include "gromacs/utility/arrayref.h"
  54 #include "gromacs/utility/path.h"
  55 #include "gromacs/utility/stringutil.h"
  56 #include "gromacs/utility/textwriter.h"
  57
  58 #include "testutils/cmdlinetest.h"
  59 #include "testutils/testasserts.h"
  60 #include "testutils/testfilemanager.h"
  61
  62 namespace
  63 {
  64
  65 using gmx::test::CommandLine;
  66
  67 class ParseCommonArgsTest : public ::testing::Test
  68 {
  69     public:
  70         enum FileArgumentType
  71         {
  72             efFull,
  73             efNoExtension,
  74             efEmptyValue
  75         };
  76
  77         ParseCommonArgsTest()
  78             : oenv_(nullptr), fileCount_(0)
  79         {
  80         }
  81         ~ParseCommonArgsTest() override
  82         {
  83             output_env_done(oenv_);
  84         }
  85
  86         int nfile() const { return fileCount_; }
  87
  88         void parseFromArgs(unsigned long           flags,
  89                            gmx::ArrayRef<t_filenm> fnm,
  90                            gmx::ArrayRef<t_pargs>  pa)
  91         {
  92             fileCount_ = fnm.size();
  93             bool bOk = parse_common_args(&args_.argc(), args_.argv(), flags,
  94                                          fnm.size(), fnm.data(),
  95                                          pa.size(), pa.data(),
  96                                          0, nullptr, 0, nullptr, &oenv_);
  97             EXPECT_TRUE(bOk);
  98         }
  99         void parseFromArray(gmx::ArrayRef<const char *const> cmdline,
 100                             unsigned long                    flags,
 101                             gmx::ArrayRef<t_filenm>          fnm,
 102                             gmx::ArrayRef<t_pargs>           pa)
 103         {
 104             args_.initFromArray(cmdline);
 105             parseFromArgs(flags, fnm, pa);
 106         }
 107         std::string addFileArg(const char *name, const char *extension,
 108                                FileArgumentType type)
 109         {
 110             std::string filename(tempFiles_.getTemporaryFilePath(extension));
 111             gmx::TextWriter::writeFileFromString(filename, "Dummy file");
 112             if (name != nullptr)
 113             {
 114                 args_.append(name);
 115                 switch (type)
 116                 {
 117                     case efFull:
 118                         args_.append(filename);
 119                         break;
 120                     case efNoExtension:
 121                         args_.append(gmx::Path::stripExtension(filename));
 122                         break;
 123                     case efEmptyValue:
 124                         break;
 125                 }
 126             }
 127             return filename;
 128         }
 129
 130         // This must be a member that persists until the end of the test,
 131         // because string arguments are not duplicated in the output.
 132         CommandLine                 args_;
 133
 134     private:
 135         gmx_output_env_t           *oenv_;
 136         size_t                      fileCount_;
 137         gmx::test::TestFileManager  tempFiles_;
 138 };
 139
 140 /********************************************************************
 141  * Tests for different types of options
 142  */
 143
 144 TEST_F(ParseCommonArgsTest, ParsesIntegerArgs)
 145 {
 146     int               value1 = 0, value2 = 0, value3 = 3;
 147     t_pargs           pa[]   = {
 148         { "-i1", FALSE, etINT, {&value1}, "Description" },
 149         { "-i2", FALSE, etINT, {&value2}, "Description" },
 150         { "-i3", FALSE, etINT, {&value3}, "Description" }
 151     };
 152     const char *const cmdline[] = {
 153         "test", "-i1", "2", "-i2", "-3"
 154     };
 155     parseFromArray(cmdline, 0, {}, pa);
 156     EXPECT_EQ( 2, value1);
 157     EXPECT_EQ(-3, value2);
 158     EXPECT_EQ( 3, value3);
 159 }
 160
 161 TEST_F(ParseCommonArgsTest, ParsesInt64Args)
 162 {
 163     int64_t           value1 = 0, value2 = 0, value3 = 3;
 164     t_pargs           pa[]   = {
 165         { "-i1", FALSE, etINT64, {&value1}, "Description" },
 166         { "-i2", FALSE, etINT64, {&value2}, "Description" },
 167         { "-i3", FALSE, etINT64, {&value3}, "Description" }
 168     };
 169     const char *const cmdline[] = {
 170         "test", "-i1", "2", "-i2", "-3"
 171     };
 172     parseFromArray(cmdline, 0, {}, pa);
 173     EXPECT_EQ( 2, value1);
 174     EXPECT_EQ(-3, value2);
 175     EXPECT_EQ( 3, value3);
 176 }
 177
 178 TEST_F(ParseCommonArgsTest, ParsesRealArgs)
 179 {
 180     real              value1 = 0.0, value2 = 0.0, value3 = 2.5;
 181     t_pargs           pa[]   = {
 182         { "-r1", FALSE, etREAL, {&value1}, "Description" },
 183         { "-r2", FALSE, etREAL, {&value2}, "Description" },
 184         { "-r3", FALSE, etREAL, {&value3}, "Description" }
 185     };
 186     const char *const cmdline[] = {
 187         "test", "-r1", "2", "-r2", "-.5"
 188     };
 189     parseFromArray(cmdline, 0, {}, pa);
 190     EXPECT_EQ( 2.0, value1);
 191     EXPECT_EQ(-0.5, value2);
 192     EXPECT_EQ( 2.5, value3);
 193 }
 194
 195 TEST_F(ParseCommonArgsTest, ParsesStringArgs)
 196 {
 197     const char       *value1 = "def", *value2 = "", *value3 = "default";
 198     t_pargs           pa[]   = {
 199         { "-s1", FALSE, etSTR, {&value1}, "Description" },
 200         { "-s2", FALSE, etSTR, {&value2}, "Description" },
 201         { "-s3", FALSE, etSTR, {&value3}, "Description" }
 202     };
 203     const char *const cmdline[] = {
 204         "test", "-s1", "", "-s2", "test"
 205     };
 206     parseFromArray(cmdline, 0, {}, pa);
 207     EXPECT_STREQ("", value1);
 208     EXPECT_STREQ("test", value2);
 209     EXPECT_STREQ("default", value3);
 210 }
 211
 212 TEST_F(ParseCommonArgsTest, ParsesBooleanArgs)
 213 {
 214     gmx_bool          value1 = TRUE, value2 = FALSE, value3 = TRUE;
 215     t_pargs           pa[]   = {
 216         { "-b1", FALSE, etBOOL, {&value1}, "Description" },
 217         { "-b2", FALSE, etBOOL, {&value2}, "Description" },
 218         { "-b3", FALSE, etBOOL, {&value3}, "Description" }
 219     };
 220     const char *const cmdline[] = {
 221         "test", "-nob1", "-b2"
 222     };
 223     parseFromArray(cmdline, 0, {}, pa);
 224     EXPECT_FALSE(value1);
 225     EXPECT_TRUE(value2);
 226     EXPECT_TRUE(value3);
 227 }
 228
 229 TEST_F(ParseCommonArgsTest, ParsesVectorArgs)
 230 {
 231     rvec              value1 = {0, 0, 0}, value2 = {0, 0, 0}, value3 = {1, 2, 3};
 232     t_pargs           pa[]   = {
 233         { "-v1", FALSE, etRVEC, {&value1}, "Description" },
 234         { "-v2", FALSE, etRVEC, {&value2}, "Description" },
 235         { "-v3", FALSE, etRVEC, {&value3}, "Description" }
 236     };
 237     const char *const cmdline[] = {
 238         "test", "-v1", "2", "1", "3", "-v2", "1"
 239     };
 240     parseFromArray(cmdline, 0, {}, pa);
 241     EXPECT_EQ(2.0, value1[XX]);
 242     EXPECT_EQ(1.0, value1[YY]);
 243     EXPECT_EQ(3.0, value1[ZZ]);
 244     EXPECT_EQ(1.0, value2[XX]);
 245     EXPECT_EQ(1.0, value2[YY]);
 246     EXPECT_EQ(1.0, value2[ZZ]);
 247     EXPECT_EQ(1.0, value3[XX]);
 248     EXPECT_EQ(2.0, value3[YY]);
 249     EXPECT_EQ(3.0, value3[ZZ]);
 250 }
 251
 252 TEST_F(ParseCommonArgsTest, ParsesTimeArgs)
 253 {
 254     real              value1 = 1.0, value2 = 2.0, value3 = 2.5;
 255     t_pargs           pa[]   = {
 256         { "-t1", FALSE, etTIME, {&value1}, "Description" },
 257         { "-t2", FALSE, etTIME, {&value2}, "Description" },
 258         { "-t3", FALSE, etTIME, {&value3}, "Description" }
 259     };
 260     const char *const cmdline[] = {
 261         "test", "-t1", "2", "-t2", "-.5"
 262     };
 263     parseFromArray(cmdline, 0, {}, pa);
 264     EXPECT_EQ( 2.0, value1);
 265     EXPECT_EQ(-0.5, value2);
 266     EXPECT_EQ( 2.5, value3);
 267 }
 268
 269 TEST_F(ParseCommonArgsTest, ParsesTimeArgsWithTimeUnit)
 270 {
 271     real              value1 = 1.0, value2 = 2.0, value3 = 2.5;
 272     t_pargs           pa[]   = {
 273         { "-t1", FALSE, etTIME, {&value1}, "Description" },
 274         { "-t2", FALSE, etTIME, {&value2}, "Description" },
 275         { "-t3", FALSE, etTIME, {&value3}, "Description" }
 276     };
 277     const char *const cmdline[] = {
 278         "test", "-t1", "2", "-t2", "-.5", "-tu", "ns"
 279     };
 280     parseFromArray(cmdline, PCA_TIME_UNIT, {}, pa);
 281     EXPECT_EQ( 2000.0, value1);
 282     EXPECT_EQ(-500.0, value2);
 283     EXPECT_EQ( 2.5, value3);
 284 }
 285
 286 TEST_F(ParseCommonArgsTest, ParsesEnumArgs)
 287 {
 288     const char       *value1[] = {nullptr, "none", "on", "off", nullptr };
 289     const char       *value2[] = {nullptr, "def", "value", "value_other", nullptr };
 290     const char       *value3[] = {nullptr, "default", "value", nullptr };
 291     t_pargs           pa[]     = {
 292         { "-s1", FALSE, etENUM, {value1}, "Description" },
 293         { "-s2", FALSE, etENUM, {value2}, "Description" },
 294         { "-s3", FALSE, etENUM, {value3}, "Description" }
 295     };
 296     const char *const cmdline[] = {
 297         "test", "-s1", "off", "-s2", "val"
 298     };
 299     parseFromArray(cmdline, 0, {}, pa);
 300     EXPECT_STREQ("off", value1[0]);
 301     EXPECT_STREQ("value", value2[0]);
 302     EXPECT_STREQ("default", value3[0]);
 303     EXPECT_EQ(value1[nenum(value1)], value1[0]);
 304     EXPECT_EQ(value2[nenum(value2)], value2[0]);
 305     EXPECT_EQ(value3[nenum(value3)], value3[0]);
 306 }
 307
 308 /********************************************************************
 309  * Tests for file name options (output files, not dependent on file system)
 310  */
 311
 312 TEST_F(ParseCommonArgsTest, ParsesFileArgs)
 313 {
 314     t_filenm          fnm[] = {
 315         { efXVG, "-o1", "out1", ffOPTWR },
 316         { efXVG, "-o2", "out2", ffOPTWR },
 317         { efXVG, "-om", "outm", ffWRMULT },
 318         { efXVG, "-om2", "outm2", ffWRMULT }
 319     };
 320     const char *const cmdline[] = {
 321         "test", "-o1", "-o2", "test", "-om", "test1", "test2.xvg", "-om2"
 322     };
 323     parseFromArray(cmdline, 0, fnm, {});
 324     EXPECT_STREQ("out1.xvg", opt2fn_null("-o1", nfile(), fnm));
 325     EXPECT_STREQ("test.xvg", opt2fn_null("-o2", nfile(), fnm));
 326     gmx::ArrayRef<const std::string> files = opt2fns("-om", nfile(), fnm);
 327     EXPECT_EQ(2, files.size());
 328     if (files.size() != 2)
 329     {
 330         EXPECT_STREQ("test1.xvg", files[0].c_str());
 331         EXPECT_STREQ("test2.xvg", files[1].c_str());
 332     }
 333     EXPECT_STREQ("outm2.xvg", opt2fn("-om2", nfile(), fnm));
 334 }
 335
 336 TEST_F(ParseCommonArgsTest, ParsesFileArgsWithDefaults)
 337 {
 338     t_filenm          fnm[] = {
 339         { efTPS, nullptr,  nullptr,   ffWRITE },
 340         { efTRX, "-f2", nullptr,   ffOPTWR },
 341         { efTRX, "-f3", "trj3", ffWRITE },
 342         { efXVG, "-o",  "out",  ffWRITE },
 343         { efXVG, "-om", "outm", ffWRMULT }
 344     };
 345     const char *const cmdline[] = {
 346         "test"
 347     };
 348     parseFromArray(cmdline, 0, fnm, {});
 349     EXPECT_STREQ("topol.tpr", ftp2fn(efTPS, nfile(), fnm));
 350     EXPECT_STREQ("traj.xtc", opt2fn("-f2", nfile(), fnm));
 351     EXPECT_EQ(nullptr, opt2fn_null("-f2", nfile(), fnm));
 352     EXPECT_STREQ("trj3.xtc", opt2fn("-f3", nfile(), fnm));
 353     EXPECT_STREQ("out.xvg", opt2fn("-o", nfile(), fnm));
 354     EXPECT_STREQ("outm.xvg", opt2fn("-om", nfile(), fnm));
 355 }
 356
 357 TEST_F(ParseCommonArgsTest, ParsesFileArgsWithDefaultFileName)
 358 {
 359     t_filenm          fnm[] = {
 360         { efTPS, "-s",  nullptr,   ffWRITE },
 361         { efTRX, "-f2", nullptr,   ffWRITE },
 362         { efTRX, "-f3", "trj3", ffWRITE },
 363         { efXVG, "-o",  "out",  ffWRITE },
 364         { efXVG, "-om", "outm", ffWRMULT }
 365     };
 366     const char *const cmdline[] = {
 367         "test", "-deffnm", "def", "-f2", "other", "-o"
 368     };
 369     parseFromArray(cmdline, PCA_CAN_SET_DEFFNM, fnm, {});
 370     EXPECT_STREQ("def.tpr", ftp2fn(efTPS, nfile(), fnm));
 371     EXPECT_STREQ("other.xtc", opt2fn("-f2", nfile(), fnm));
 372     EXPECT_STREQ("def.xtc", opt2fn("-f3", nfile(), fnm));
 373     EXPECT_STREQ("def.xvg", opt2fn("-o", nfile(), fnm));
 374     EXPECT_STREQ("def.xvg", opt2fn("-om", nfile(), fnm));
 375 }
 376
 377 TEST_F(ParseCommonArgsTest, ParseFileArgsWithCustomDefaultExtension)
 378 {
 379     t_filenm          fnm[] = {
 380         { efTRX, "-o1", "conf1.gro", ffWRITE },
 381         { efTRX, "-o2", "conf2.pdb", ffWRITE },
 382         { efTRX, "-o3", "conf3.gro", ffWRITE }
 383     };
 384     const char *const cmdline[] = {
 385         "test", "-o2", "-o3", "test"
 386     };
 387     parseFromArray(cmdline, PCA_CAN_SET_DEFFNM, fnm, {});
 388     EXPECT_STREQ("conf1.gro", opt2fn("-o1", nfile(), fnm));
 389     EXPECT_STREQ("conf2.pdb", opt2fn("-o2", nfile(), fnm));
 390     EXPECT_STREQ("test.gro", opt2fn("-o3", nfile(), fnm));
 391 }
 392
 393 /********************************************************************
 394  * Tests for file name options (input files, dependent on file system contents)
 395  */
 396
 397 TEST_F(ParseCommonArgsTest, HandlesNonExistentInputFiles)
 398 {
 399     t_filenm          fnm[] = {
 400         { efTPS, "-s",  nullptr,   ffREAD },
 401         { efTRX, "-f",  "trj",  ffREAD },
 402         { efTRX, "-f2", "trj2", ffREAD },
 403         { efTRX, "-f3", "trj3", ffREAD },
 404         { efTRX, "-f4", "trj4", ffREAD },
 405         { efGRO, "-g",  "cnf",  ffREAD },
 406         { efGRO, "-g2", "cnf2", ffREAD }
 407     };
 408     const char *const cmdline[] = {
 409         "test", "-f2", "-f3", "other", "-f4", "trj.gro", "-g2", "foo"
 410     };
 411     parseFromArray(cmdline, PCA_DISABLE_INPUT_FILE_CHECKING, fnm, {});
 412     EXPECT_STREQ("topol.tpr", ftp2fn(efTPS, nfile(), fnm));
 413     EXPECT_STREQ("trj.xtc", opt2fn("-f", nfile(), fnm));
 414     EXPECT_STREQ("trj2.xtc", opt2fn("-f2", nfile(), fnm));
 415     EXPECT_STREQ("other.xtc", opt2fn("-f3", nfile(), fnm));
 416     EXPECT_STREQ("trj.gro", opt2fn("-f4", nfile(), fnm));
 417     EXPECT_STREQ("cnf.gro", opt2fn("-g", nfile(), fnm));
 418     EXPECT_STREQ("foo.gro", opt2fn("-g2", nfile(), fnm));
 419 }
 420
 421 TEST_F(ParseCommonArgsTest, HandlesNonExistentOptionalInputFiles)
 422 {
 423     t_filenm          fnm[] = {
 424         { efTPS, "-s",  nullptr,   ffOPTRD },
 425         { efTRX, "-f",  "trj",  ffOPTRD }
 426     };
 427     const char *const cmdline[] = {
 428         "test"
 429     };
 430     parseFromArray(cmdline, 0, fnm, {});
 431     EXPECT_STREQ("topol.tpr", ftp2fn(efTPS, nfile(), fnm));
 432     EXPECT_STREQ("trj.xtc", opt2fn("-f", nfile(), fnm));
 433 }
 434
 435 TEST_F(ParseCommonArgsTest, AcceptsNonExistentInputFilesIfSpecified)
 436 {
 437     t_filenm          fnm[] = {
 438         { efCPT, "-c",  "file1", ffOPTRD | ffALLOW_MISSING },
 439         { efCPT, "-c2", "file2", ffOPTRD | ffALLOW_MISSING },
 440         { efCPT, "-c3", "file3", ffOPTRD | ffALLOW_MISSING },
 441         { efCPT, "-c4", "file4", ffOPTRD | ffALLOW_MISSING },
 442         { efTRX, "-f",  "trj",   ffOPTRD | ffALLOW_MISSING }
 443     };
 444     const char *const cmdline[] = {
 445         "test", "-c2", "-c3", "nonexistent", "-c4", "nonexistent.cpt", "-f", "nonexistent"
 446     };
 447     parseFromArray(cmdline, 0, fnm, {});
 448     EXPECT_STREQ("file1.cpt", opt2fn("-c", nfile(), fnm));
 449     EXPECT_STREQ("file2.cpt", opt2fn("-c2", nfile(), fnm));
 450     EXPECT_STREQ("nonexistent.cpt", opt2fn("-c3", nfile(), fnm));
 451     EXPECT_STREQ("nonexistent.cpt", opt2fn("-c4", nfile(), fnm));
 452     EXPECT_STREQ("nonexistent.xtc", opt2fn("-f", nfile(), fnm));
 453 }
 454
 455 TEST_F(ParseCommonArgsTest, HandlesCompressedFiles)
 456 {
 457     t_filenm          fnm[] = {
 458         { efTRX, "-f", nullptr, ffREAD },
 459         { efGRO, "-g", nullptr, ffREAD }
 460     };
 461     args_.append("test");
 462     std::string       expectedF = addFileArg("-f", ".pdb.gz", efFull);
 463     std::string       expectedG = addFileArg("-g", ".gro.Z", efFull);
 464     expectedF = gmx::Path::stripExtension(expectedF);
 465     expectedG = gmx::Path::stripExtension(expectedG);
 466     parseFromArgs(0, fnm, {});
 467     EXPECT_EQ(expectedF, opt2fn("-f", nfile(), fnm));
 468     EXPECT_EQ(expectedG, opt2fn("-g", nfile(), fnm));
 469 }
 470
 471 TEST_F(ParseCommonArgsTest, AcceptsUnknownTrajectoryExtension)
 472 {
 473     t_filenm          fnm[] = {
 474         { efTRX, "-f", nullptr, ffREAD }
 475     };
 476     args_.append("test");
 477     std::string       expected = addFileArg("-f", ".foo", efFull);
 478     parseFromArgs(0, fnm, {});
 479     EXPECT_EQ(expected, opt2fn("-f", nfile(), fnm));
 480 }
 481
 482 TEST_F(ParseCommonArgsTest, CompletesExtensionFromExistingFile)
 483 {
 484     args_.append("test");
 485     std::string         expected1 = addFileArg("-f1", "1.xtc", efNoExtension);
 486     std::string         expected2 = addFileArg("-f2", "2.gro", efNoExtension);
 487     std::string         expected3 = addFileArg("-f3", "3.tng", efNoExtension);
 488     std::string         expected4 = addFileArg("-f4", ".gro", efEmptyValue);
 489     std::string         def4      = gmx::Path::stripExtension(expected4);
 490     t_filenm            fnm[]     = {
 491         { efTRX, "-f1", nullptr, ffREAD },
 492         { efTRX, "-f2", nullptr, ffREAD },
 493         { efTRX, "-f3", nullptr, ffREAD },
 494         { efTRX, "-f4", def4.c_str(), ffREAD }
 495     };
 496     parseFromArgs(0, fnm, {});
 497     EXPECT_EQ(expected1, opt2fn("-f1", nfile(), fnm));
 498     EXPECT_EQ(expected2, opt2fn("-f2", nfile(), fnm));
 499     EXPECT_EQ(expected3, opt2fn("-f3", nfile(), fnm));
 500     EXPECT_EQ(expected4, opt2fn("-f4", nfile(), fnm));
 501 }
 502
 503 TEST_F(ParseCommonArgsTest, CompletesExtensionFromExistingFileWithDefaultFileName)
 504 {
 505     t_filenm          fnm[] = {
 506         { efTRX, "-f1", nullptr,  ffREAD },
 507         { efSTO, "-f2", "foo", ffREAD },
 508         { efTRX, "-f3", nullptr,  ffREAD },
 509         { efSTX, "-f4", nullptr,  ffREAD }
 510     };
 511     args_.append("test");
 512     std::string       expected1 = addFileArg("-f1", "1.trr", efNoExtension);
 513     std::string       expected2 = addFileArg("-f2", ".pdb", efEmptyValue);
 514     std::string       expected3 = addFileArg("-f3", ".trr", efEmptyValue);
 515     std::string       expected4 = addFileArg(nullptr, ".pdb", efEmptyValue);
 516     std::string       deffnm    = gmx::Path::stripExtension(expected3);
 517     args_.append("-deffnm");
 518     args_.append(deffnm);
 519     parseFromArgs(PCA_CAN_SET_DEFFNM, fnm, {});
 520     EXPECT_EQ(expected1, opt2fn("-f1", nfile(), fnm));
 521     EXPECT_EQ(expected2, opt2fn("-f2", nfile(), fnm));
 522     EXPECT_EQ(expected3, opt2fn("-f3", nfile(), fnm));
 523     EXPECT_EQ(expected4, opt2fn("-f4", nfile(), fnm));
 524 }
 525
 526 // This is needed e.g. for tune_pme, which passes unknown arguments on
 527 // to child mdrun processes that it spawns.
 528 TEST_F(ParseCommonArgsTest, CanKeepUnknownArgs)
 529 {
 530     int               ivalue = 0;
 531     gmx_bool          bvalue = FALSE;
 532     t_pargs           pa[]   = {
 533         { "-i", FALSE, etINT, {&ivalue}, "Description" },
 534         { "-b", FALSE, etBOOL, {&bvalue}, "Description" },
 535     };
 536     t_filenm          fnm[] = {
 537         { efXVG, "-o1", "out1", ffOPTWR },
 538         { efXVG, "-o2", "out2", ffOPTWR }
 539     };
 540     const char *const cmdline[] = {
 541         "test", "foo", "-unk", "-o1", "-unk2", "-o2", "test",
 542         "-i", "2", "-unk3", "-b", "-unk4"
 543     };
 544     parseFromArray(cmdline, PCA_NOEXIT_ON_ARGS, fnm, pa);
 545     EXPECT_EQ(2, ivalue);
 546     EXPECT_TRUE(bvalue);
 547     EXPECT_STREQ("out1.xvg", opt2fn_null("-o1", nfile(), fnm));
 548     EXPECT_STREQ("test.xvg", opt2fn_null("-o2", nfile(), fnm));
 549     EXPECT_EQ(6, args_.argc());
 550     EXPECT_STREQ(cmdline[0],  args_.arg(0));
 551     EXPECT_STREQ(cmdline[1],  args_.arg(1));
 552     EXPECT_STREQ(cmdline[2],  args_.arg(2));
 553     EXPECT_STREQ(cmdline[4],  args_.arg(3));
 554     EXPECT_STREQ(cmdline[9],  args_.arg(4));
 555     EXPECT_STREQ(cmdline[11], args_.arg(5));
 556 }
 557
 558 } // namespace