catch2/include/internal/catch_test_case_tracker.hpp

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/*
* Created by Phil Nash on 23/7/2013
* Copyright 2013 Two Blue Cubes Ltd. All rights reserved.
*
* Distributed under the Boost Software License, Version 1.0. (See accompanying
* file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
*/
#ifndef TWOBLUECUBES_CATCH_TEST_CASE_TRACKER_HPP_INCLUDED
#define TWOBLUECUBES_CATCH_TEST_CASE_TRACKER_HPP_INCLUDED
#include "catch_compiler_capabilities.h"
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#include "catch_common.h"
#include <algorithm>
#include <string>
#include <assert.h>
#include <vector>
#include <stdexcept>
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#include <memory>
CATCH_INTERNAL_SUPPRESS_ETD_WARNINGS
namespace Catch {
namespace TestCaseTracking {
struct NameAndLocation {
std::string name;
SourceLineInfo location;
NameAndLocation( std::string const& _name, SourceLineInfo const& _location )
: name( _name ),
location( _location )
{}
};
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struct ITracker;
using ITrackerPtr = std::shared_ptr<ITracker>;
struct ITracker {
virtual ~ITracker();
// static queries
virtual NameAndLocation const& nameAndLocation() const = 0;
// dynamic queries
virtual bool isComplete() const = 0; // Successfully completed or failed
virtual bool isSuccessfullyCompleted() const = 0;
virtual bool isOpen() const = 0; // Started but not complete
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virtual bool hasChildren() const = 0;
virtual ITracker& parent() = 0;
// actions
virtual void close() = 0; // Successfully complete
virtual void fail() = 0;
virtual void markAsNeedingAnotherRun() = 0;
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virtual void addChild( ITrackerPtr const& child ) = 0;
virtual ITrackerPtr findChild( NameAndLocation const& nameAndLocation ) = 0;
virtual void openChild() = 0;
// Debug/ checking
virtual bool isSectionTracker() const = 0;
virtual bool isIndexTracker() const = 0;
};
class TrackerContext {
enum RunState {
NotStarted,
Executing,
CompletedCycle
};
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ITrackerPtr m_rootTracker;
ITracker* m_currentTracker = nullptr;
RunState m_runState = NotStarted;
public:
static TrackerContext& instance() {
static TrackerContext s_instance;
return s_instance;
}
ITracker& startRun();
void endRun() {
m_rootTracker.reset();
m_currentTracker = nullptr;
m_runState = NotStarted;
}
void startCycle() {
m_currentTracker = m_rootTracker.get();
m_runState = Executing;
}
void completeCycle() {
m_runState = CompletedCycle;
}
bool completedCycle() const {
return m_runState == CompletedCycle;
}
ITracker& currentTracker() {
return *m_currentTracker;
}
void setCurrentTracker( ITracker* tracker ) {
m_currentTracker = tracker;
}
};
class TrackerBase : public ITracker {
protected:
enum CycleState {
NotStarted,
Executing,
ExecutingChildren,
NeedsAnotherRun,
CompletedSuccessfully,
Failed
};
class TrackerHasName {
NameAndLocation m_nameAndLocation;
public:
TrackerHasName( NameAndLocation const& nameAndLocation ) : m_nameAndLocation( nameAndLocation ) {}
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bool operator ()( ITrackerPtr const& tracker ) {
return
tracker->nameAndLocation().name == m_nameAndLocation.name &&
tracker->nameAndLocation().location == m_nameAndLocation.location;
}
};
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typedef std::vector<ITrackerPtr> Children;
NameAndLocation m_nameAndLocation;
TrackerContext& m_ctx;
ITracker* m_parent;
Children m_children;
CycleState m_runState = NotStarted;
public:
TrackerBase( NameAndLocation const& nameAndLocation, TrackerContext& ctx, ITracker* parent )
: m_nameAndLocation( nameAndLocation ),
m_ctx( ctx ),
m_parent( parent )
{}
virtual ~TrackerBase();
virtual NameAndLocation const& nameAndLocation() const override {
return m_nameAndLocation;
}
virtual bool isComplete() const override {
return m_runState == CompletedSuccessfully || m_runState == Failed;
}
virtual bool isSuccessfullyCompleted() const override {
return m_runState == CompletedSuccessfully;
}
virtual bool isOpen() const override {
return m_runState != NotStarted && !isComplete();
}
virtual bool hasChildren() const override {
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return !m_children.empty();
}
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virtual void addChild( ITrackerPtr const& child ) override {
m_children.push_back( child );
}
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virtual ITrackerPtr findChild( NameAndLocation const& nameAndLocation ) override {
auto it = std::find_if( m_children.begin(), m_children.end(), TrackerHasName( nameAndLocation ) );
return( it != m_children.end() )
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? *it
: nullptr;
}
virtual ITracker& parent() override {
assert( m_parent ); // Should always be non-null except for root
return *m_parent;
}
virtual void openChild() override {
if( m_runState != ExecutingChildren ) {
m_runState = ExecutingChildren;
if( m_parent )
m_parent->openChild();
}
}
virtual bool isSectionTracker() const override { return false; }
virtual bool isIndexTracker() const override { return false; }
void open() {
m_runState = Executing;
moveToThis();
if( m_parent )
m_parent->openChild();
}
virtual void close() override {
// Close any still open children (e.g. generators)
while( &m_ctx.currentTracker() != this )
m_ctx.currentTracker().close();
switch( m_runState ) {
case NeedsAnotherRun:
break;;
case Executing:
m_runState = CompletedSuccessfully;
break;
case ExecutingChildren:
if( m_children.empty() || m_children.back()->isComplete() )
m_runState = CompletedSuccessfully;
break;
case NotStarted:
case CompletedSuccessfully:
case Failed:
CATCH_INTERNAL_ERROR( "Illogical state: " << m_runState );
default:
CATCH_INTERNAL_ERROR( "Unknown state: " << m_runState );
}
moveToParent();
m_ctx.completeCycle();
}
virtual void fail() override {
m_runState = Failed;
if( m_parent )
m_parent->markAsNeedingAnotherRun();
moveToParent();
m_ctx.completeCycle();
}
virtual void markAsNeedingAnotherRun() override {
m_runState = NeedsAnotherRun;
}
private:
void moveToParent() {
assert( m_parent );
m_ctx.setCurrentTracker( m_parent );
}
void moveToThis() {
m_ctx.setCurrentTracker( this );
}
};
class SectionTracker : public TrackerBase {
std::vector<std::string> m_filters;
public:
SectionTracker( NameAndLocation const& nameAndLocation, TrackerContext& ctx, ITracker* parent )
: TrackerBase( nameAndLocation, ctx, parent )
{
if( parent ) {
while( !parent->isSectionTracker() )
parent = &parent->parent();
SectionTracker& parentSection = static_cast<SectionTracker&>( *parent );
addNextFilters( parentSection.m_filters );
}
}
virtual ~SectionTracker();
virtual bool isSectionTracker() const override { return true; }
static SectionTracker& acquire( TrackerContext& ctx, NameAndLocation const& nameAndLocation ) {
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std::shared_ptr<SectionTracker> section;
ITracker& currentTracker = ctx.currentTracker();
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if( ITrackerPtr childTracker = currentTracker.findChild( nameAndLocation ) ) {
assert( childTracker );
assert( childTracker->isSectionTracker() );
section = std::static_pointer_cast<SectionTracker>( childTracker );
}
else {
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section = std::make_shared<SectionTracker>( nameAndLocation, ctx, &currentTracker );
currentTracker.addChild( section );
}
if( !ctx.completedCycle() )
section->tryOpen();
return *section;
}
void tryOpen() {
if( !isComplete() && (m_filters.empty() || m_filters[0].empty() || m_filters[0] == m_nameAndLocation.name ) )
open();
}
void addInitialFilters( std::vector<std::string> const& filters ) {
if( !filters.empty() ) {
m_filters.push_back(""); // Root - should never be consulted
m_filters.push_back(""); // Test Case - not a section filter
m_filters.insert( m_filters.end(), filters.begin(), filters.end() );
}
}
void addNextFilters( std::vector<std::string> const& filters ) {
if( filters.size() > 1 )
m_filters.insert( m_filters.end(), ++filters.begin(), filters.end() );
}
};
class IndexTracker : public TrackerBase {
int m_size;
int m_index = -1;
public:
IndexTracker( NameAndLocation const& nameAndLocation, TrackerContext& ctx, ITracker* parent, int size )
: TrackerBase( nameAndLocation, ctx, parent ),
m_size( size )
{}
virtual ~IndexTracker();
virtual bool isIndexTracker() const override { return true; }
static IndexTracker& acquire( TrackerContext& ctx, NameAndLocation const& nameAndLocation, int size ) {
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std::shared_ptr<IndexTracker> tracker;
ITracker& currentTracker = ctx.currentTracker();
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if( ITrackerPtr childTracker = currentTracker.findChild( nameAndLocation ) ) {
assert( childTracker );
assert( childTracker->isIndexTracker() );
tracker = std::static_pointer_cast<IndexTracker>( childTracker );
}
else {
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tracker = std::make_shared<IndexTracker>( nameAndLocation, ctx, &currentTracker, size );
currentTracker.addChild( tracker );
}
if( !ctx.completedCycle() && !tracker->isComplete() ) {
if( tracker->m_runState != ExecutingChildren && tracker->m_runState != NeedsAnotherRun )
tracker->moveNext();
tracker->open();
}
return *tracker;
}
int index() const { return m_index; }
void moveNext() {
m_index++;
m_children.clear();
}
virtual void close() override {
TrackerBase::close();
if( m_runState == CompletedSuccessfully && m_index < m_size-1 )
m_runState = Executing;
}
};
inline ITracker& TrackerContext::startRun() {
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m_rootTracker = std::make_shared<SectionTracker>( NameAndLocation( "{root}", CATCH_INTERNAL_LINEINFO ), *this, nullptr );
m_currentTracker = nullptr;
m_runState = Executing;
return *m_rootTracker;
}
} // namespace TestCaseTracking
using TestCaseTracking::ITracker;
using TestCaseTracking::TrackerContext;
using TestCaseTracking::SectionTracker;
using TestCaseTracking::IndexTracker;
} // namespace Catch
CATCH_INTERNAL_UNSUPPRESS_ETD_WARNINGS
#endif // TWOBLUECUBES_CATCH_TEST_CASE_TRACKER_HPP_INCLUDED