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"
#include "catch_ptr.hpp"
#include <map>
#include <string>
#include <assert.h>
#include <vector>
namespace Catch {
namespace TestCaseTracking {
struct ITracker : SharedImpl<> {
virtual ~ITracker();
// static queries
virtual std::string name() 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;
virtual void addChild( Ptr<ITracker> const& child ) = 0;
virtual ITracker* findChild( std::string const& name ) = 0;
virtual void openChild() = 0;
};
class TrackerContext {
enum RunState {
NotStarted,
Executing,
CompletedCycle
};
Ptr<ITracker> m_rootTracker;
ITracker* m_currentTracker;
RunState m_runState;
public:
static TrackerContext& instance() {
static TrackerContext s_instance;
return s_instance;
}
TrackerContext()
: m_currentTracker( CATCH_NULL ),
m_runState( NotStarted )
{}
ITracker& startRun();
void endRun() {
m_rootTracker.reset();
m_currentTracker = CATCH_NULL;
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 {
std::string m_name;
public:
TrackerHasName( std::string const& name ) : m_name( name ) {}
bool operator ()( Ptr<ITracker> const& tracker ) {
return tracker->name() == m_name;
}
};
typedef std::vector<Ptr<ITracker> > Children;
std::string m_name;
TrackerContext& m_ctx;
ITracker* m_parent;
Children m_children;
CycleState m_runState;
public:
TrackerBase( std::string const& name, TrackerContext& ctx, ITracker* parent )
: m_name( name ),
m_ctx( ctx ),
m_parent( parent ),
m_runState( NotStarted )
{}
virtual ~TrackerBase();
virtual std::string name() const CATCH_OVERRIDE {
return m_name;
}
virtual bool isComplete() const CATCH_OVERRIDE {
return m_runState == CompletedSuccessfully || m_runState == Failed;
}
virtual bool isSuccessfullyCompleted() const CATCH_OVERRIDE {
return m_runState == CompletedSuccessfully;
}
virtual bool isOpen() const CATCH_OVERRIDE {
return m_runState != NotStarted && !isComplete();
}
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virtual bool hasChildren() const CATCH_OVERRIDE {
return !m_children.empty();
}
virtual void addChild( Ptr<ITracker> const& child ) CATCH_OVERRIDE {
m_children.push_back( child );
}
virtual ITracker* findChild( std::string const& name ) CATCH_OVERRIDE {
Children::const_iterator it = std::find_if( m_children.begin(), m_children.end(), TrackerHasName( name ) );
return( it != m_children.end() )
? it->get()
: CATCH_NULL;
}
virtual ITracker& parent() CATCH_OVERRIDE {
assert( m_parent ); // Should always be non-null except for root
return *m_parent;
}
virtual void openChild() CATCH_OVERRIDE {
if( m_runState != ExecutingChildren ) {
m_runState = ExecutingChildren;
if( m_parent )
m_parent->openChild();
}
}
void open() {
m_runState = Executing;
moveToThis();
if( m_parent )
m_parent->openChild();
}
virtual void close() CATCH_OVERRIDE {
// Close any still open children (e.g. generators)
while( &m_ctx.currentTracker() != this )
m_ctx.currentTracker().close();
switch( m_runState ) {
case NotStarted:
case CompletedSuccessfully:
case Failed:
throw std::logic_error( "Illogical state" );
case NeedsAnotherRun:
break;;
case Executing:
m_runState = CompletedSuccessfully;
break;
case ExecutingChildren:
if( m_children.empty() || m_children.back()->isComplete() )
m_runState = CompletedSuccessfully;
break;
default:
throw std::logic_error( "Unexpected state" );
}
moveToParent();
m_ctx.completeCycle();
}
virtual void fail() CATCH_OVERRIDE {
m_runState = Failed;
if( m_parent )
m_parent->markAsNeedingAnotherRun();
moveToParent();
m_ctx.completeCycle();
}
virtual void markAsNeedingAnotherRun() CATCH_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 {
public:
SectionTracker( std::string const& name, TrackerContext& ctx, ITracker* parent )
: TrackerBase( name, ctx, parent )
{}
virtual ~SectionTracker();
static SectionTracker& acquire( TrackerContext& ctx, std::string const& name ) {
SectionTracker* section = CATCH_NULL;
ITracker& currentTracker = ctx.currentTracker();
if( ITracker* childTracker = currentTracker.findChild( name ) ) {
section = dynamic_cast<SectionTracker*>( childTracker );
assert( section );
}
else {
section = new SectionTracker( name, ctx, &currentTracker );
currentTracker.addChild( section );
}
if( !ctx.completedCycle() && !section->isComplete() ) {
section->open();
}
return *section;
}
};
class IndexTracker : public TrackerBase {
int m_size;
int m_index;
public:
IndexTracker( std::string const& name, TrackerContext& ctx, ITracker* parent, int size )
: TrackerBase( name, ctx, parent ),
m_size( size ),
m_index( -1 )
{}
virtual ~IndexTracker();
static IndexTracker& acquire( TrackerContext& ctx, std::string const& name, int size ) {
IndexTracker* tracker = CATCH_NULL;
ITracker& currentTracker = ctx.currentTracker();
if( ITracker* childTracker = currentTracker.findChild( name ) ) {
tracker = dynamic_cast<IndexTracker*>( childTracker );
assert( tracker );
}
else {
tracker = new IndexTracker( name, 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() CATCH_OVERRIDE {
TrackerBase::close();
if( m_runState == CompletedSuccessfully && m_index < m_size-1 )
m_runState = Executing;
}
};
inline ITracker& TrackerContext::startRun() {
m_rootTracker = new SectionTracker( "{root}", *this, CATCH_NULL );
m_currentTracker = CATCH_NULL;
m_runState = Executing;
return *m_rootTracker;
}
} // namespace TestCaseTracking
using TestCaseTracking::ITracker;
using TestCaseTracking::TrackerContext;
using TestCaseTracking::SectionTracker;
using TestCaseTracking::IndexTracker;
} // namespace Catch
#endif // TWOBLUECUBES_CATCH_TEST_CASE_TRACKER_HPP_INCLUDED