rippled/modules/beast_core/diagnostic/beast_UnitTest.cpp

//------------------------------------------------------------------------------
/*
    This file is part of Beast: https://github.com/vinniefalco/Beast
    Copyright 2013, Vinnie Falco <vinnie.falco@gmail.com>

    Portions of this file are from JUCE.
    Copyright (c) 2013 - Raw Material Software Ltd.
    Please visit http://www.juce.com

    Permission to use, copy, modify, and/or distribute this software for any
    purpose  with  or without fee is hereby granted, provided that the above
    copyright notice and this permission notice appear in all copies.

    THE  SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
    WITH  REGARD  TO  THIS  SOFTWARE  INCLUDING  ALL  IMPLIED  WARRANTIES  OF
    MERCHANTABILITY  AND  FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
    ANY  SPECIAL ,  DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
    WHATSOEVER  RESULTING  FROM  LOSS  OF USE, DATA OR PROFITS, WHETHER IN AN
    ACTION  OF  CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
//==============================================================================

UnitTest::UnitTest (const String& name_)
    : name (name_), runner (nullptr)
{
    getAllTests().add (this);
}

UnitTest::~UnitTest()
{
    getAllTests().removeFirstMatchingValue (this);
}

Array<UnitTest*>& UnitTest::getAllTests()
{
    static Array<UnitTest*> tests;
    return tests;
}

void UnitTest::initialise()  {}
void UnitTest::shutdown()   {}

void UnitTest::performTest (UnitTestRunner* const runner_)
{
    bassert (runner_ != nullptr);
    runner = runner_;

    initialise();
    runTest();
    shutdown();
}

void UnitTest::logMessage (const String& message)
{
    runner->logMessage (message);
}

void UnitTest::beginTest (const String& testName)
{
    runner->beginNewTest (this, testName);
}

void UnitTest::expect (const bool result, const String& failureMessage)
{
    if (result)
        runner->addPass();
    else
        runner->addFail (failureMessage);
}

//==============================================================================
UnitTestRunner::UnitTestRunner()
    : currentTest (nullptr),
      assertOnFailure (true),
      logPasses (false)
{
}

UnitTestRunner::~UnitTestRunner()
{
}

void UnitTestRunner::setAssertOnFailure (bool shouldAssert) noexcept
{
    assertOnFailure = shouldAssert;
}

void UnitTestRunner::setPassesAreLogged (bool shouldDisplayPasses) noexcept
{
    logPasses = shouldDisplayPasses;
}

int UnitTestRunner::getNumResults() const noexcept
{
    return results.size();
}

const UnitTestRunner::TestResult* UnitTestRunner::getResult (int index) const noexcept
{
    return results [index];
}

void UnitTestRunner::resultsUpdated()
{
}

void UnitTestRunner::runTests (const Array<UnitTest*>& tests)
{
    results.clear();
    resultsUpdated();

    for (int i = 0; i < tests.size(); ++i)
    {
        if (shouldAbortTests())
            break;

        try
        {
            tests.getUnchecked(i)->performTest (this);
        }
        catch (...)
        {
            addFail ("An unhandled exception was thrown!");
        }
    }

    endTest();
}

void UnitTestRunner::runAllTests()
{
    runTests (UnitTest::getAllTests());
}

void UnitTestRunner::logMessage (const String& message)
{
    Logger::writeToLog (message);
}

bool UnitTestRunner::shouldAbortTests()
{
    return false;
}

void UnitTestRunner::beginNewTest (UnitTest* const test, const String& subCategory)
{
    endTest();
    currentTest = test;

    TestResult* const r = new TestResult();
    results.add (r);
    r->unitTestName = test->getName();
    r->subcategoryName = subCategory;
    r->passes = 0;
    r->failures = 0;

    logMessage ("-----------------------------------------------------------------");
    logMessage ("Starting test: " + r->unitTestName + " / " + subCategory + "...");

    resultsUpdated();
}

void UnitTestRunner::endTest()
{
    if (results.size() > 0)
    {
        TestResult* const r = results.getLast();

        if (r->failures > 0)
        {
            String m ("FAILED!!  ");
            m << r->failures << (r->failures == 1 ? " test" : " tests")
              << " failed, out of a total of " << (r->passes + r->failures);

            logMessage (String::empty);
            logMessage (m);
            logMessage (String::empty);
        }
        else
        {
            logMessage ("All tests completed successfully");
        }
    }
}

void UnitTestRunner::addPass()
{
    {
        const ScopedLock sl (results.getLock());

        TestResult* const r = results.getLast();
        bassert (r != nullptr); // You need to call UnitTest::beginTest() before performing any tests!

        r->passes++;

        if (logPasses)
        {
            String message ("Test ");
            message << (r->failures + r->passes) << " passed";
            logMessage (message);
        }
    }

    resultsUpdated();
}

void UnitTestRunner::addFail (const String& failureMessage)
{
    {
        const ScopedLock sl (results.getLock());

        TestResult* const r = results.getLast();
        bassert (r != nullptr); // You need to call UnitTest::beginTest() before performing any tests!

        r->failures++;

        String message ("!!! Test ");
        message << (r->failures + r->passes) << " failed";

        if (failureMessage.isNotEmpty())
            message << ": " << failureMessage;

        r->messages.add (message);

        logMessage (message);
    }

    resultsUpdated();

    if (assertOnFailure) { bassertfalse; }
}