src/gromacs/taskassignment/tests/usergpuids.cpp

   1 /*
   2  * This file is part of the GROMACS molecular simulation package.
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   4  * Copyright (c) 2017,2018, by the GROMACS development team, led by
   5  * Mark Abraham, David van der Spoel, Berk Hess, and Erik Lindahl,
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  35 /*! \internal \file
  36  * \brief
  37  * Tests for NonbondedOnGpuFromUser
  38  *
  39  * \author Mark Abraham <mark.j.abraham@gmail.com>
  40  * \ingroup module_taskassignment
  41  */
  42 #include "gmxpre.h"
  43
  44 #include "gromacs/taskassignment/usergpuids.h"
  45
  46 #include <string>
  47 #include <vector>
  48
  49 #include <gmock/gmock.h>
  50 #include <gtest/gtest.h>
  51
  52 #include "gromacs/utility/exceptions.h"
  53
  54 namespace gmx
  55 {
  56
  57 namespace test
  58 {
  59 namespace
  60 {
  61
  62 TEST(GpuIdStringHandlingTest, ParsingAndReconstructionWork)
  63 {
  64     using ::testing::UnorderedElementsAreArray;
  65
  66     // TODO It would be nicer to use EXPECT_THAT(assignment,
  67     // UnorderedElementsAreArray({0,1}) but MSVC 2015 does
  68     // not deduce the template arguments for <int, 2>.
  69
  70     // Test simple assignments and back mappings
  71     {
  72         const char *strings[] = { "01", "0,1", "0,1," };
  73         for (const auto &s : strings)
  74         {
  75             auto assignment = parseUserGpuIds(s);
  76             auto matcher    = UnorderedElementsAreArray<int, 2>({0, 1});
  77             EXPECT_THAT(assignment, matcher) << "for string " << s;
  78             EXPECT_EQ("0",     makeGpuIdString(assignment, 1));
  79             EXPECT_EQ("0,1",   makeGpuIdString(assignment, 2));
  80             EXPECT_EQ("0,0,1", makeGpuIdString(assignment, 3));
  81         }
  82     }
  83     // Test an input that could be a single large index, or two small indices; and back mappings
  84     {
  85         auto assignment = parseUserGpuIds("11");
  86         auto matcher    = UnorderedElementsAreArray<int, 2>({1, 1});
  87         EXPECT_THAT(assignment, matcher);
  88         EXPECT_EQ("1",     makeGpuIdString(assignment, 1));
  89         EXPECT_EQ("1,1",   makeGpuIdString(assignment, 2));
  90         EXPECT_EQ("1,1,1", makeGpuIdString(assignment, 3));
  91     }
  92     // Test an input that must be a single large index; and back mappings
  93     {
  94         auto assignment = parseUserGpuIds("11,");
  95         auto matcher    = UnorderedElementsAreArray<int, 1>({11});
  96         EXPECT_THAT(assignment, matcher);
  97         EXPECT_EQ("11",       makeGpuIdString(assignment, 1));
  98         EXPECT_EQ("11,11",    makeGpuIdString(assignment, 2));
  99         EXPECT_EQ("11,11,11", makeGpuIdString(assignment, 3));
 100     }
 101     // Test multiple large indices; and back mappings
 102     {
 103         const char *strings[] = { "11,12", "11,12," };
 104         for (const auto &s : strings)
 105         {
 106             auto assignment = parseUserGpuIds(s);
 107             auto matcher    = UnorderedElementsAreArray<int, 2>({11, 12});
 108             EXPECT_THAT(assignment, matcher) << "for string " << s;
 109             EXPECT_EQ("11",       makeGpuIdString(assignment, 1));
 110             EXPECT_EQ("11,12",    makeGpuIdString(assignment, 2));
 111             EXPECT_EQ("11,11,12", makeGpuIdString(assignment, 3));
 112         }
 113     }
 114 }
 115
 116 TEST(GpuIdStringHandlingTest, EmptyStringCanBeValid)
 117 {
 118     using ::testing::IsEmpty;
 119
 120     auto assignment = parseUserGpuIds("");
 121     EXPECT_THAT(assignment, IsEmpty());
 122     EXPECT_EQ("", makeGpuIdString(assignment, 0));
 123 }
 124
 125 TEST(GpuIdStringHandlingTest, InvalidInputsThrow)
 126 {
 127     {
 128         const char *strings[] = {
 129             "a", "0a", ",01", ",0,1", ",0,1,",
 130             ":0", "0a:1b", "0:1:2",
 131             ",", ";", ":", "-", "=",
 132         };
 133         for (const auto &s : strings)
 134         {
 135             EXPECT_THROW(parseUserGpuIds(s), InvalidInputError) << "for string " << s;
 136         }
 137     }
 138 }
 139
 140 } // namespace
 141 } // namespace test
 142 } // namespace gmx