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https://github.com/catchorg/Catch2.git
synced 2024-11-05 05:39:53 +01:00
8f277a54c0
Because new glibc has changed `MINSIGSTKSZ` to be a syscall instead of being constant, the signal posix handling needed changes, as it used the value in constexpr context, for deciding size of an array. It would be simple to fix it by having the handler determine the signal handling stack size and allocate the memory every time the handler is being installed, but that would add another allocation and a syscall every time a test case is entered. Instead, I split apart the idea of preparing fatal error handlers, and engaging them, so that the memory can be allocated only once and still be guarded by RAII. Also turns out that Catch2's use of `MINSIGSTKSZ` was wrong, and we should've been using `SIGSTKSZ` the whole time, which we use now. Closes #2178
596 lines
23 KiB
C++
596 lines
23 KiB
C++
#include "catch_run_context.h"
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#include "catch_compiler_capabilities.h"
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#include "catch_context.h"
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#include "catch_enforce.h"
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#include "catch_random_number_generator.h"
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#include "catch_stream.h"
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#include "catch_output_redirect.h"
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#include <cassert>
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#include <algorithm>
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#include <sstream>
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namespace Catch {
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namespace Generators {
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struct GeneratorTracker : TestCaseTracking::TrackerBase, IGeneratorTracker {
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GeneratorBasePtr m_generator;
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GeneratorTracker( TestCaseTracking::NameAndLocation const& nameAndLocation, TrackerContext& ctx, ITracker* parent )
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: TrackerBase( nameAndLocation, ctx, parent )
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{}
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~GeneratorTracker();
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static GeneratorTracker& acquire( TrackerContext& ctx, TestCaseTracking::NameAndLocation const& nameAndLocation ) {
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std::shared_ptr<GeneratorTracker> tracker;
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ITracker& currentTracker = ctx.currentTracker();
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// Under specific circumstances, the generator we want
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// to acquire is also the current tracker. If this is
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// the case, we have to avoid looking through current
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// tracker's children, and instead return the current
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// tracker.
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// A case where this check is important is e.g.
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// for (int i = 0; i < 5; ++i) {
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// int n = GENERATE(1, 2);
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// }
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//
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// without it, the code above creates 5 nested generators.
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if (currentTracker.nameAndLocation() == nameAndLocation) {
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auto thisTracker = currentTracker.parent().findChild(nameAndLocation);
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assert(thisTracker);
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assert(thisTracker->isGeneratorTracker());
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tracker = std::static_pointer_cast<GeneratorTracker>(thisTracker);
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} else if ( TestCaseTracking::ITrackerPtr childTracker = currentTracker.findChild( nameAndLocation ) ) {
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assert( childTracker );
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assert( childTracker->isGeneratorTracker() );
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tracker = std::static_pointer_cast<GeneratorTracker>( childTracker );
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} else {
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tracker = std::make_shared<GeneratorTracker>( nameAndLocation, ctx, ¤tTracker );
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currentTracker.addChild( tracker );
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}
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if( !tracker->isComplete() ) {
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tracker->open();
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}
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return *tracker;
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}
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// TrackerBase interface
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bool isGeneratorTracker() const override { return true; }
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auto hasGenerator() const -> bool override {
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return !!m_generator;
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}
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void close() override {
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TrackerBase::close();
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// If a generator has a child (it is followed by a section)
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// and none of its children have started, then we must wait
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// until later to start consuming its values.
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// This catches cases where `GENERATE` is placed between two
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// `SECTION`s.
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// **The check for m_children.empty cannot be removed**.
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// doing so would break `GENERATE` _not_ followed by `SECTION`s.
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const bool should_wait_for_child = [&]() {
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// No children -> nobody to wait for
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if ( m_children.empty() ) {
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return false;
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}
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// If at least one child started executing, don't wait
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if ( std::find_if(
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m_children.begin(),
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m_children.end(),
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[]( TestCaseTracking::ITrackerPtr tracker ) {
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return tracker->hasStarted();
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} ) != m_children.end() ) {
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return false;
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}
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// No children have started. We need to check if they _can_
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// start, and thus we should wait for them, or they cannot
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// start (due to filters), and we shouldn't wait for them
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auto* parent = m_parent;
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// This is safe: there is always at least one section
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// tracker in a test case tracking tree
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while ( !parent->isSectionTracker() ) {
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parent = &( parent->parent() );
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}
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assert( parent &&
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"Missing root (test case) level section" );
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auto const& parentSection =
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static_cast<SectionTracker&>( *parent );
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auto const& filters = parentSection.getFilters();
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// No filters -> no restrictions on running sections
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if ( filters.empty() ) {
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return true;
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}
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for ( auto const& child : m_children ) {
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if ( child->isSectionTracker() &&
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std::find( filters.begin(),
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filters.end(),
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static_cast<SectionTracker&>( *child )
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.trimmedName() ) !=
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filters.end() ) {
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return true;
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}
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}
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return false;
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}();
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// This check is a bit tricky, because m_generator->next()
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// has a side-effect, where it consumes generator's current
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// value, but we do not want to invoke the side-effect if
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// this generator is still waiting for any child to start.
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if ( should_wait_for_child ||
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( m_runState == CompletedSuccessfully &&
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m_generator->next() ) ) {
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m_children.clear();
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m_runState = Executing;
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}
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}
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// IGeneratorTracker interface
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auto getGenerator() const -> GeneratorBasePtr const& override {
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return m_generator;
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}
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void setGenerator( GeneratorBasePtr&& generator ) override {
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m_generator = std::move( generator );
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}
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};
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GeneratorTracker::~GeneratorTracker() {}
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}
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RunContext::RunContext(IConfigPtr const& _config, IStreamingReporterPtr&& reporter)
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: m_runInfo(_config->name()),
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m_context(getCurrentMutableContext()),
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m_config(_config),
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m_reporter(std::move(reporter)),
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m_lastAssertionInfo{ StringRef(), SourceLineInfo("",0), StringRef(), ResultDisposition::Normal },
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m_includeSuccessfulResults( m_config->includeSuccessfulResults() || m_reporter->getPreferences().shouldReportAllAssertions )
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{
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m_context.setRunner(this);
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m_context.setConfig(m_config);
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m_context.setResultCapture(this);
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m_reporter->testRunStarting(m_runInfo);
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}
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RunContext::~RunContext() {
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m_reporter->testRunEnded(TestRunStats(m_runInfo, m_totals, aborting()));
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}
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void RunContext::testGroupStarting(std::string const& testSpec, std::size_t groupIndex, std::size_t groupsCount) {
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m_reporter->testGroupStarting(GroupInfo(testSpec, groupIndex, groupsCount));
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}
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void RunContext::testGroupEnded(std::string const& testSpec, Totals const& totals, std::size_t groupIndex, std::size_t groupsCount) {
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m_reporter->testGroupEnded(TestGroupStats(GroupInfo(testSpec, groupIndex, groupsCount), totals, aborting()));
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}
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Totals RunContext::runTest(TestCase const& testCase) {
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Totals prevTotals = m_totals;
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std::string redirectedCout;
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std::string redirectedCerr;
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auto const& testInfo = testCase.getTestCaseInfo();
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m_reporter->testCaseStarting(testInfo);
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m_activeTestCase = &testCase;
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ITracker& rootTracker = m_trackerContext.startRun();
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assert(rootTracker.isSectionTracker());
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static_cast<SectionTracker&>(rootTracker).addInitialFilters(m_config->getSectionsToRun());
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do {
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m_trackerContext.startCycle();
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m_testCaseTracker = &SectionTracker::acquire(m_trackerContext, TestCaseTracking::NameAndLocation(testInfo.name, testInfo.lineInfo));
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runCurrentTest(redirectedCout, redirectedCerr);
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} while (!m_testCaseTracker->isSuccessfullyCompleted() && !aborting());
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Totals deltaTotals = m_totals.delta(prevTotals);
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if (testInfo.expectedToFail() && deltaTotals.testCases.passed > 0) {
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deltaTotals.assertions.failed++;
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deltaTotals.testCases.passed--;
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deltaTotals.testCases.failed++;
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}
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m_totals.testCases += deltaTotals.testCases;
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m_reporter->testCaseEnded(TestCaseStats(testInfo,
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deltaTotals,
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redirectedCout,
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redirectedCerr,
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aborting()));
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m_activeTestCase = nullptr;
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m_testCaseTracker = nullptr;
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return deltaTotals;
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}
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IConfigPtr RunContext::config() const {
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return m_config;
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}
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IStreamingReporter& RunContext::reporter() const {
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return *m_reporter;
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}
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void RunContext::assertionEnded(AssertionResult const & result) {
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if (result.getResultType() == ResultWas::Ok) {
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m_totals.assertions.passed++;
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m_lastAssertionPassed = true;
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} else if (!result.isOk()) {
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m_lastAssertionPassed = false;
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if( m_activeTestCase->getTestCaseInfo().okToFail() )
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m_totals.assertions.failedButOk++;
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else
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m_totals.assertions.failed++;
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}
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else {
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m_lastAssertionPassed = true;
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}
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// We have no use for the return value (whether messages should be cleared), because messages were made scoped
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// and should be let to clear themselves out.
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static_cast<void>(m_reporter->assertionEnded(AssertionStats(result, m_messages, m_totals)));
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if (result.getResultType() != ResultWas::Warning)
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m_messageScopes.clear();
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// Reset working state
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resetAssertionInfo();
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m_lastResult = result;
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}
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void RunContext::resetAssertionInfo() {
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m_lastAssertionInfo.macroName = StringRef();
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m_lastAssertionInfo.capturedExpression = "{Unknown expression after the reported line}"_sr;
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}
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bool RunContext::sectionStarted(SectionInfo const & sectionInfo, Counts & assertions) {
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ITracker& sectionTracker = SectionTracker::acquire(m_trackerContext, TestCaseTracking::NameAndLocation(sectionInfo.name, sectionInfo.lineInfo));
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if (!sectionTracker.isOpen())
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return false;
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m_activeSections.push_back(§ionTracker);
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m_lastAssertionInfo.lineInfo = sectionInfo.lineInfo;
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m_reporter->sectionStarting(sectionInfo);
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assertions = m_totals.assertions;
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return true;
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}
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auto RunContext::acquireGeneratorTracker( StringRef generatorName, SourceLineInfo const& lineInfo ) -> IGeneratorTracker& {
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using namespace Generators;
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GeneratorTracker& tracker = GeneratorTracker::acquire(m_trackerContext,
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TestCaseTracking::NameAndLocation( static_cast<std::string>(generatorName), lineInfo ) );
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m_lastAssertionInfo.lineInfo = lineInfo;
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return tracker;
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}
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bool RunContext::testForMissingAssertions(Counts& assertions) {
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if (assertions.total() != 0)
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return false;
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if (!m_config->warnAboutMissingAssertions())
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return false;
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if (m_trackerContext.currentTracker().hasChildren())
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return false;
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m_totals.assertions.failed++;
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assertions.failed++;
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return true;
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}
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void RunContext::sectionEnded(SectionEndInfo const & endInfo) {
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Counts assertions = m_totals.assertions - endInfo.prevAssertions;
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bool missingAssertions = testForMissingAssertions(assertions);
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if (!m_activeSections.empty()) {
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m_activeSections.back()->close();
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m_activeSections.pop_back();
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}
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m_reporter->sectionEnded(SectionStats(endInfo.sectionInfo, assertions, endInfo.durationInSeconds, missingAssertions));
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m_messages.clear();
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m_messageScopes.clear();
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}
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void RunContext::sectionEndedEarly(SectionEndInfo const & endInfo) {
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if (m_unfinishedSections.empty())
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m_activeSections.back()->fail();
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else
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m_activeSections.back()->close();
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m_activeSections.pop_back();
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m_unfinishedSections.push_back(endInfo);
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}
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#if defined(CATCH_CONFIG_ENABLE_BENCHMARKING)
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void RunContext::benchmarkPreparing(std::string const& name) {
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m_reporter->benchmarkPreparing(name);
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}
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void RunContext::benchmarkStarting( BenchmarkInfo const& info ) {
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m_reporter->benchmarkStarting( info );
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}
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void RunContext::benchmarkEnded( BenchmarkStats<> const& stats ) {
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m_reporter->benchmarkEnded( stats );
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}
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void RunContext::benchmarkFailed(std::string const & error) {
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m_reporter->benchmarkFailed(error);
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}
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#endif // CATCH_CONFIG_ENABLE_BENCHMARKING
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void RunContext::pushScopedMessage(MessageInfo const & message) {
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m_messages.push_back(message);
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}
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void RunContext::popScopedMessage(MessageInfo const & message) {
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m_messages.erase(std::remove(m_messages.begin(), m_messages.end(), message), m_messages.end());
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}
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void RunContext::emplaceUnscopedMessage( MessageBuilder const& builder ) {
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m_messageScopes.emplace_back( builder );
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}
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std::string RunContext::getCurrentTestName() const {
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return m_activeTestCase
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? m_activeTestCase->getTestCaseInfo().name
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: std::string();
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}
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const AssertionResult * RunContext::getLastResult() const {
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return &(*m_lastResult);
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}
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void RunContext::exceptionEarlyReported() {
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m_shouldReportUnexpected = false;
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}
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void RunContext::handleFatalErrorCondition( StringRef message ) {
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// First notify reporter that bad things happened
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m_reporter->fatalErrorEncountered(message);
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// Don't rebuild the result -- the stringification itself can cause more fatal errors
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// Instead, fake a result data.
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AssertionResultData tempResult( ResultWas::FatalErrorCondition, { false } );
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tempResult.message = static_cast<std::string>(message);
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AssertionResult result(m_lastAssertionInfo, tempResult);
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assertionEnded(result);
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handleUnfinishedSections();
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// Recreate section for test case (as we will lose the one that was in scope)
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auto const& testCaseInfo = m_activeTestCase->getTestCaseInfo();
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SectionInfo testCaseSection(testCaseInfo.lineInfo, testCaseInfo.name);
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Counts assertions;
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assertions.failed = 1;
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SectionStats testCaseSectionStats(testCaseSection, assertions, 0, false);
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m_reporter->sectionEnded(testCaseSectionStats);
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auto const& testInfo = m_activeTestCase->getTestCaseInfo();
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Totals deltaTotals;
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deltaTotals.testCases.failed = 1;
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deltaTotals.assertions.failed = 1;
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m_reporter->testCaseEnded(TestCaseStats(testInfo,
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deltaTotals,
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std::string(),
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std::string(),
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false));
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m_totals.testCases.failed++;
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testGroupEnded(std::string(), m_totals, 1, 1);
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m_reporter->testRunEnded(TestRunStats(m_runInfo, m_totals, false));
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}
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bool RunContext::lastAssertionPassed() {
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return m_lastAssertionPassed;
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}
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void RunContext::assertionPassed() {
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m_lastAssertionPassed = true;
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++m_totals.assertions.passed;
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resetAssertionInfo();
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m_messageScopes.clear();
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}
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bool RunContext::aborting() const {
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return m_totals.assertions.failed >= static_cast<std::size_t>(m_config->abortAfter());
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}
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void RunContext::runCurrentTest(std::string & redirectedCout, std::string & redirectedCerr) {
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auto const& testCaseInfo = m_activeTestCase->getTestCaseInfo();
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SectionInfo testCaseSection(testCaseInfo.lineInfo, testCaseInfo.name);
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m_reporter->sectionStarting(testCaseSection);
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Counts prevAssertions = m_totals.assertions;
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double duration = 0;
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m_shouldReportUnexpected = true;
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m_lastAssertionInfo = { "TEST_CASE"_sr, testCaseInfo.lineInfo, StringRef(), ResultDisposition::Normal };
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seedRng(*m_config);
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Timer timer;
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CATCH_TRY {
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if (m_reporter->getPreferences().shouldRedirectStdOut) {
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#if !defined(CATCH_CONFIG_EXPERIMENTAL_REDIRECT)
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RedirectedStreams redirectedStreams(redirectedCout, redirectedCerr);
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timer.start();
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invokeActiveTestCase();
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#else
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OutputRedirect r(redirectedCout, redirectedCerr);
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timer.start();
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invokeActiveTestCase();
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#endif
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} else {
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timer.start();
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invokeActiveTestCase();
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}
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duration = timer.getElapsedSeconds();
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} CATCH_CATCH_ANON (TestFailureException&) {
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// This just means the test was aborted due to failure
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} CATCH_CATCH_ALL {
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// Under CATCH_CONFIG_FAST_COMPILE, unexpected exceptions under REQUIRE assertions
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// are reported without translation at the point of origin.
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if( m_shouldReportUnexpected ) {
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AssertionReaction dummyReaction;
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handleUnexpectedInflightException( m_lastAssertionInfo, translateActiveException(), dummyReaction );
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}
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}
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Counts assertions = m_totals.assertions - prevAssertions;
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bool missingAssertions = testForMissingAssertions(assertions);
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m_testCaseTracker->close();
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handleUnfinishedSections();
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m_messages.clear();
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m_messageScopes.clear();
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SectionStats testCaseSectionStats(testCaseSection, assertions, duration, missingAssertions);
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m_reporter->sectionEnded(testCaseSectionStats);
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}
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void RunContext::invokeActiveTestCase() {
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FatalConditionHandlerGuard _(&m_fatalConditionhandler);
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m_activeTestCase->invoke();
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}
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void RunContext::handleUnfinishedSections() {
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// If sections ended prematurely due to an exception we stored their
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// infos here so we can tear them down outside the unwind process.
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for (auto it = m_unfinishedSections.rbegin(),
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itEnd = m_unfinishedSections.rend();
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it != itEnd;
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++it)
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sectionEnded(*it);
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m_unfinishedSections.clear();
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}
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void RunContext::handleExpr(
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AssertionInfo const& info,
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ITransientExpression const& expr,
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AssertionReaction& reaction
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) {
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m_reporter->assertionStarting( info );
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bool negated = isFalseTest( info.resultDisposition );
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bool result = expr.getResult() != negated;
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if( result ) {
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if (!m_includeSuccessfulResults) {
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assertionPassed();
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}
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else {
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reportExpr(info, ResultWas::Ok, &expr, negated);
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}
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}
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else {
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reportExpr(info, ResultWas::ExpressionFailed, &expr, negated );
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populateReaction( reaction );
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}
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}
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void RunContext::reportExpr(
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AssertionInfo const &info,
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ResultWas::OfType resultType,
|
|
ITransientExpression const *expr,
|
|
bool negated ) {
|
|
|
|
m_lastAssertionInfo = info;
|
|
AssertionResultData data( resultType, LazyExpression( negated ) );
|
|
|
|
AssertionResult assertionResult{ info, data };
|
|
assertionResult.m_resultData.lazyExpression.m_transientExpression = expr;
|
|
|
|
assertionEnded( assertionResult );
|
|
}
|
|
|
|
void RunContext::handleMessage(
|
|
AssertionInfo const& info,
|
|
ResultWas::OfType resultType,
|
|
StringRef const& message,
|
|
AssertionReaction& reaction
|
|
) {
|
|
m_reporter->assertionStarting( info );
|
|
|
|
m_lastAssertionInfo = info;
|
|
|
|
AssertionResultData data( resultType, LazyExpression( false ) );
|
|
data.message = static_cast<std::string>(message);
|
|
AssertionResult assertionResult{ m_lastAssertionInfo, data };
|
|
assertionEnded( assertionResult );
|
|
if( !assertionResult.isOk() )
|
|
populateReaction( reaction );
|
|
}
|
|
void RunContext::handleUnexpectedExceptionNotThrown(
|
|
AssertionInfo const& info,
|
|
AssertionReaction& reaction
|
|
) {
|
|
handleNonExpr(info, Catch::ResultWas::DidntThrowException, reaction);
|
|
}
|
|
|
|
void RunContext::handleUnexpectedInflightException(
|
|
AssertionInfo const& info,
|
|
std::string const& message,
|
|
AssertionReaction& reaction
|
|
) {
|
|
m_lastAssertionInfo = info;
|
|
|
|
AssertionResultData data( ResultWas::ThrewException, LazyExpression( false ) );
|
|
data.message = message;
|
|
AssertionResult assertionResult{ info, data };
|
|
assertionEnded( assertionResult );
|
|
populateReaction( reaction );
|
|
}
|
|
|
|
void RunContext::populateReaction( AssertionReaction& reaction ) {
|
|
reaction.shouldDebugBreak = m_config->shouldDebugBreak();
|
|
reaction.shouldThrow = aborting() || (m_lastAssertionInfo.resultDisposition & ResultDisposition::Normal);
|
|
}
|
|
|
|
void RunContext::handleIncomplete(
|
|
AssertionInfo const& info
|
|
) {
|
|
m_lastAssertionInfo = info;
|
|
|
|
AssertionResultData data( ResultWas::ThrewException, LazyExpression( false ) );
|
|
data.message = "Exception translation was disabled by CATCH_CONFIG_FAST_COMPILE";
|
|
AssertionResult assertionResult{ info, data };
|
|
assertionEnded( assertionResult );
|
|
}
|
|
void RunContext::handleNonExpr(
|
|
AssertionInfo const &info,
|
|
ResultWas::OfType resultType,
|
|
AssertionReaction &reaction
|
|
) {
|
|
m_lastAssertionInfo = info;
|
|
|
|
AssertionResultData data( resultType, LazyExpression( false ) );
|
|
AssertionResult assertionResult{ info, data };
|
|
assertionEnded( assertionResult );
|
|
|
|
if( !assertionResult.isOk() )
|
|
populateReaction( reaction );
|
|
}
|
|
|
|
|
|
IResultCapture& getResultCapture() {
|
|
if (auto* capture = getCurrentContext().getResultCapture())
|
|
return *capture;
|
|
else
|
|
CATCH_INTERNAL_ERROR("No result capture instance");
|
|
}
|
|
|
|
void seedRng(IConfig const& config) {
|
|
if (config.rngSeed() != 0) {
|
|
std::srand(config.rngSeed());
|
|
rng().seed(config.rngSeed());
|
|
}
|
|
}
|
|
|
|
unsigned int rngSeed() {
|
|
return getCurrentContext().getConfig()->rngSeed();
|
|
}
|
|
|
|
}
|