src/testutils/interactivetest.cpp

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  35 /*! \internal \file
  36  * \brief
  37  * Implements classes from interactivetest.h.
  38  *
  39  * \author Teemu Murtola <teemu.murtola@gmail.com>
  40  * \ingroup module_testutils
  41  */
  42 #include "gmxpre.h"
  43
  44 #include "testutils/interactivetest.h"
  45
  46 #include <string>
  47 #include <utility>
  48
  49 #include <gmock/gmock.h>
  50 #include <gtest/gtest.h>
  51
  52 #include "gromacs/utility/arrayref.h"
  53 #include "gromacs/utility/stringutil.h"
  54 #include "gromacs/utility/textstream.h"
  55
  56 #include "testutils/refdata.h"
  57 #include "testutils/stringtest.h"
  58
  59 namespace gmx
  60 {
  61 namespace test
  62 {
  63
  64 // These two classes cannot be in an unnamed namespace (easily), since
  65 // then their use as members below would trigger warnings.
  66 // But if anyone needs these outside this file, they can easily be moved to a
  67 // separate header.
  68
  69 class MockTextInputStream : public TextInputStream
  70 {
  71 public:
  72     MOCK_METHOD1(readLine, bool(std::string*));
  73     MOCK_METHOD0(close, void());
  74 };
  75
  76 class MockTextOutputStream : public TextOutputStream
  77 {
  78 public:
  79     MOCK_METHOD1(write, void(const char*));
  80     MOCK_METHOD0(close, void());
  81 };
  82
  83 class InteractiveTestHelper::Impl
  84 {
  85 public:
  86     explicit Impl(TestReferenceChecker checker) :
  87         checker_(std::move(checker)),
  88         bLastNewline_(true),
  89         currentLine_(0),
  90         bHasOutput_(false)
  91     {
  92         using ::testing::_;
  93         using ::testing::Invoke;
  94         EXPECT_CALL(inputStream_, readLine(_)).WillRepeatedly(Invoke(this, &Impl::readInputLine));
  95         EXPECT_CALL(inputStream_, close()).Times(0);
  96         EXPECT_CALL(outputStream_, write(_)).WillRepeatedly(Invoke(this, &Impl::addOutput));
  97         EXPECT_CALL(outputStream_, close()).Times(0);
  98     }
  99
 100     bool readInputLine(std::string* line)
 101     {
 102         checkOutput();
 103         line->clear();
 104         const bool bPresent = (currentLine_ < index(inputLines_.size()));
 105         if (bPresent)
 106         {
 107             line->assign(inputLines_[currentLine_]);
 108             if (bLastNewline_ || currentLine_ + 1 < index(inputLines_.size()))
 109             {
 110                 line->append("\n");
 111             }
 112         }
 113         ++currentLine_;
 114         const std::string id = formatString("Input%d", static_cast<int>(currentLine_));
 115         StringTestBase::checkText(&checker_, *line, id.c_str());
 116         return bPresent;
 117     }
 118     void addOutput(const char* str)
 119     {
 120         bHasOutput_ = true;
 121         currentOutput_.append(str);
 122     }
 123
 124     void checkOutput()
 125     {
 126         if (bHasOutput_)
 127         {
 128             const std::string id = formatString("Output%d", static_cast<int>(currentLine_));
 129             StringTestBase::checkText(&checker_, currentOutput_, id.c_str());
 130             bHasOutput_ = false;
 131         }
 132         currentOutput_.clear();
 133     }
 134
 135     TestReferenceChecker        checker_;
 136     ArrayRef<const char* const> inputLines_;
 137     bool                        bLastNewline_;
 138     index                       currentLine_;
 139     bool                        bHasOutput_;
 140     std::string                 currentOutput_;
 141     MockTextInputStream         inputStream_;
 142     MockTextOutputStream        outputStream_;
 143 };
 144
 145 InteractiveTestHelper::InteractiveTestHelper(TestReferenceChecker checker) :
 146     impl_(new Impl(checker.checkCompound("InteractiveSession", "Interactive")))
 147 {
 148 }
 149
 150 InteractiveTestHelper::~InteractiveTestHelper() {}
 151
 152 void InteractiveTestHelper::setLastNewline(bool bInclude)
 153 {
 154     impl_->bLastNewline_ = bInclude;
 155 }
 156
 157 void InteractiveTestHelper::setInputLines(const ArrayRef<const char* const>& inputLines)
 158 {
 159     impl_->inputLines_  = inputLines;
 160     impl_->currentLine_ = 0;
 161 }
 162
 163 TextInputStream& InteractiveTestHelper::inputStream()
 164 {
 165     return impl_->inputStream_;
 166 }
 167
 168 TextOutputStream& InteractiveTestHelper::outputStream()
 169 {
 170     return impl_->outputStream_;
 171 }
 172
 173 void InteractiveTestHelper::checkSession()
 174 {
 175     impl_->checkOutput();
 176     impl_->checker_.checkUnusedEntries();
 177 }
 178
 179 } // namespace test
 180 } // namespace gmx