diff options
Diffstat (limited to 'src/modeltest.cpp')
| -rw-r--r-- | src/modeltest.cpp | 1166 |
1 files changed, 583 insertions, 583 deletions
diff --git a/src/modeltest.cpp b/src/modeltest.cpp index b2e495b6..90061261 100644 --- a/src/modeltest.cpp +++ b/src/modeltest.cpp @@ -1,583 +1,583 @@ -/**************************************************************************** -** -** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies). -** Contact: http://www.qt-project.org/legal -** -** This file is part of the test suite of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and Digia. For licensing terms and -** conditions see http://qt.digia.com/licensing. For further information -** use the contact form at http://qt.digia.com/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 2.1 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 2.1 requirements -** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. -** -** In addition, as a special exception, Digia gives you certain additional -** rights. These rights are described in the Digia Qt LGPL Exception -** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 3.0 as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU General Public License version 3.0 requirements will be -** met: http://www.gnu.org/copyleft/gpl.html. -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - - -#include <QtGui/QtGui> - -#include "modeltest.h" - -#include <QtTest/QtTest> - -#undef QVERIFY -#define QVERIFY Q_ASSERT -#undef QCOMPARE -#define QCOMPARE(x, y) Q_ASSERT(x == y) - -Q_DECLARE_METATYPE ( QModelIndex ) - -/*! - Connect to all of the models signals. Whenever anything happens recheck everything. -*/ -ModelTest::ModelTest ( QAbstractItemModel *_model, QObject *parent ) : QObject ( parent ), model ( _model ), fetchingMore ( false ) -{ - if (!model) - qFatal("%s: model must not be null", Q_FUNC_INFO); - - connect ( model, SIGNAL ( columnsAboutToBeInserted ( const QModelIndex &, int, int ) ), - this, SLOT ( runAllTests() ) ); - connect ( model, SIGNAL ( columnsAboutToBeRemoved ( const QModelIndex &, int, int ) ), - this, SLOT ( runAllTests() ) ); - connect ( model, SIGNAL ( columnsInserted ( const QModelIndex &, int, int ) ), - this, SLOT ( runAllTests() ) ); - connect ( model, SIGNAL ( columnsRemoved ( const QModelIndex &, int, int ) ), - this, SLOT ( runAllTests() ) ); - connect ( model, SIGNAL ( dataChanged ( const QModelIndex &, const QModelIndex & ) ), - this, SLOT ( runAllTests() ) ); - connect ( model, SIGNAL ( headerDataChanged ( Qt::Orientation, int, int ) ), - this, SLOT ( runAllTests() ) ); - connect ( model, SIGNAL ( layoutAboutToBeChanged () ), this, SLOT ( runAllTests() ) ); - connect ( model, SIGNAL ( layoutChanged () ), this, SLOT ( runAllTests() ) ); - connect ( model, SIGNAL ( modelReset () ), this, SLOT ( runAllTests() ) ); - connect ( model, SIGNAL ( rowsAboutToBeInserted ( const QModelIndex &, int, int ) ), - this, SLOT ( runAllTests() ) ); - connect ( model, SIGNAL ( rowsAboutToBeRemoved ( const QModelIndex &, int, int ) ), - this, SLOT ( runAllTests() ) ); - connect ( model, SIGNAL ( rowsInserted ( const QModelIndex &, int, int ) ), - this, SLOT ( runAllTests() ) ); - connect ( model, SIGNAL ( rowsRemoved ( const QModelIndex &, int, int ) ), - this, SLOT ( runAllTests() ) ); - - // Special checks for inserting/removing - connect ( model, SIGNAL ( layoutAboutToBeChanged() ), - this, SLOT ( layoutAboutToBeChanged() ) ); - connect ( model, SIGNAL ( layoutChanged() ), - this, SLOT ( layoutChanged() ) ); - - connect ( model, SIGNAL ( rowsAboutToBeInserted ( const QModelIndex &, int, int ) ), - this, SLOT ( rowsAboutToBeInserted ( const QModelIndex &, int, int ) ) ); - connect ( model, SIGNAL ( rowsAboutToBeRemoved ( const QModelIndex &, int, int ) ), - this, SLOT ( rowsAboutToBeRemoved ( const QModelIndex &, int, int ) ) ); - connect ( model, SIGNAL ( rowsInserted ( const QModelIndex &, int, int ) ), - this, SLOT ( rowsInserted ( const QModelIndex &, int, int ) ) ); - connect ( model, SIGNAL ( rowsRemoved ( const QModelIndex &, int, int ) ), - this, SLOT ( rowsRemoved ( const QModelIndex &, int, int ) ) ); - - runAllTests(); -} - -void ModelTest::runAllTests() -{ - if ( fetchingMore ) - return; - nonDestructiveBasicTest(); - rowCount(); - columnCount(); - hasIndex(); - index(); - parent(); - data(); -} - -/*! - nonDestructiveBasicTest tries to call a number of the basic functions (not all) - to make sure the model doesn't outright segfault, testing the functions that makes sense. -*/ -void ModelTest::nonDestructiveBasicTest() -{ - QVERIFY( model->buddy ( QModelIndex() ) == QModelIndex() ); - model->canFetchMore ( QModelIndex() ); - QVERIFY( model->columnCount ( QModelIndex() ) >= 0 ); - QVERIFY( model->data ( QModelIndex() ) == QVariant() ); - fetchingMore = true; - model->fetchMore ( QModelIndex() ); - fetchingMore = false; - Qt::ItemFlags flags = model->flags ( QModelIndex() ); - QVERIFY( flags == Qt::ItemIsDropEnabled || flags == 0 ); - model->hasChildren ( QModelIndex() ); - model->hasIndex ( 0, 0 ); - model->headerData ( 0, Qt::Horizontal ); - model->index ( 0, 0 ); - model->itemData ( QModelIndex() ); - QVariant cache; - model->match ( QModelIndex(), -1, cache ); - model->mimeTypes(); - QVERIFY( model->parent ( QModelIndex() ) == QModelIndex() ); - QVERIFY( model->rowCount() >= 0 ); - QVariant variant; - model->setData ( QModelIndex(), variant, -1 ); - model->setHeaderData ( -1, Qt::Horizontal, QVariant() ); - model->setHeaderData ( 999999, Qt::Horizontal, QVariant() ); - QMap<int, QVariant> roles; - model->sibling ( 0, 0, QModelIndex() ); - model->span ( QModelIndex() ); - model->supportedDropActions(); -} - -/*! - Tests model's implementation of QAbstractItemModel::rowCount() and hasChildren() - - Models that are dynamically populated are not as fully tested here. - */ -void ModelTest::rowCount() -{ -// qDebug() << "rc"; - // check top row - - QModelIndex topIndex = model->index ( 0, 0, QModelIndex() ); - if (!model->hasChildren ( topIndex ) && model->rowCount(topIndex) > 0) { - qDebug() << "it's gonna blow: " << topIndex; - } - - int rows = model->rowCount ( topIndex ); - QVERIFY( rows >= 0 ); - if ( rows > 0 ) { - QVERIFY( model->hasChildren ( topIndex ) ); - } - - QModelIndex secondLevelIndex = model->index ( 0, 0, topIndex ); - if ( secondLevelIndex.isValid() ) { // not the top level - // check a row count where parent is valid - rows = model->rowCount ( secondLevelIndex ); - QVERIFY( rows >= 0 ); - if ( rows > 0 ) - QVERIFY( model->hasChildren ( secondLevelIndex ) ); - } - - // The models rowCount() is tested more extensively in checkChildren(), - // but this catches the big mistakes -} - -/*! - Tests model's implementation of QAbstractItemModel::columnCount() and hasChildren() - */ -void ModelTest::columnCount() -{ - // check top row - QModelIndex topIndex = model->index ( 0, 0, QModelIndex() ); - QVERIFY( model->columnCount ( topIndex ) >= 0 ); - - // check a column count where parent is valid - QModelIndex childIndex = model->index ( 0, 0, topIndex ); - if ( childIndex.isValid() ) - QVERIFY( model->columnCount ( childIndex ) >= 0 ); - - // columnCount() is tested more extensively in checkChildren(), - // but this catches the big mistakes -} - -/*! - Tests model's implementation of QAbstractItemModel::hasIndex() - */ -void ModelTest::hasIndex() -{ -// qDebug() << "hi"; - // Make sure that invalid values returns an invalid index - QVERIFY( !model->hasIndex ( -2, -2 ) ); - QVERIFY( !model->hasIndex ( -2, 0 ) ); - QVERIFY( !model->hasIndex ( 0, -2 ) ); - - int rows = model->rowCount(); - int columns = model->columnCount(); - - // check out of bounds - QVERIFY( !model->hasIndex ( rows, columns ) ); - QVERIFY( !model->hasIndex ( rows + 1, columns + 1 ) ); - - if ( rows > 0 ) - QVERIFY( model->hasIndex ( 0, 0 ) ); - - // hasIndex() is tested more extensively in checkChildren(), - // but this catches the big mistakes -} - -/*! - Tests model's implementation of QAbstractItemModel::index() - */ -void ModelTest::index() -{ -// qDebug() << "i"; - // Make sure that invalid values returns an invalid index -/* QVERIFY( model->index ( -2, -2 ) == QModelIndex() ); - QVERIFY( model->index ( -2, 0 ) == QModelIndex() ); - QVERIFY( model->index ( 0, -2 ) == QModelIndex() );*/ - QVERIFY( !model->index ( -2, -2 ).isValid() ); - QVERIFY( !model->index ( -2, 0 ).isValid() ); - QVERIFY( !model->index ( 0, -2 ).isValid() ); - - int rows = model->rowCount(); - int columns = model->columnCount(); - - if ( rows == 0 ) - return; - - // Catch off by one errors - //QVERIFY( model->index ( rows, columns ) == QModelIndex() ); - QVERIFY( !model->index ( rows, columns ).isValid() ); - QVERIFY( model->index ( 0, 0 ).isValid() ); - - // Make sure that the same index is *always* returned - QModelIndex a = model->index ( 0, 0 ); - QModelIndex b = model->index ( 0, 0 ); - QVERIFY( a == b ); - - // index() is tested more extensively in checkChildren(), - // but this catches the big mistakes -} - -/*! - Tests model's implementation of QAbstractItemModel::parent() - */ -void ModelTest::parent() -{ -// qDebug() << "p"; - // Make sure the model wont crash and will return an invalid QModelIndex - // when asked for the parent of an invalid index. - QVERIFY( model->parent ( QModelIndex() ) == QModelIndex() ); - - if ( model->rowCount() == 0 ) - return; - - // Column 0 | Column 1 | - // QModelIndex() | | - // \- topIndex | topIndex1 | - // \- childIndex | childIndex1 | - - // Common error test #1, make sure that a top level index has a parent - // that is a invalid QModelIndex. - QModelIndex topIndex = model->index ( 0, 0, QModelIndex() ); - QVERIFY( model->parent ( topIndex ) == QModelIndex() ); - - // Common error test #2, make sure that a second level index has a parent - // that is the first level index. - if ( model->rowCount ( topIndex ) > 0 ) { - QModelIndex childIndex = model->index ( 0, 0, topIndex ); - QVERIFY( model->parent ( childIndex ) == topIndex ); - } - - // Common error test #3, the second column should NOT have the same children - // as the first column in a row. - // Usually the second column shouldn't have children. - QModelIndex topIndex1 = model->index ( 0, 1, QModelIndex() ); - if ( model->rowCount ( topIndex1 ) > 0 ) { - QModelIndex childIndex = model->index ( 0, 0, topIndex ); - QModelIndex childIndex1 = model->index ( 0, 0, topIndex1 ); - QVERIFY( childIndex != childIndex1 ); - } - - // Full test, walk n levels deep through the model making sure that all - // parent's children correctly specify their parent. - checkChildren ( QModelIndex() ); -} - -/*! - Called from the parent() test. - - A model that returns an index of parent X should also return X when asking - for the parent of the index. - - This recursive function does pretty extensive testing on the whole model in an - effort to catch edge cases. - - This function assumes that rowCount(), columnCount() and index() already work. - If they have a bug it will point it out, but the above tests should have already - found the basic bugs because it is easier to figure out the problem in - those tests then this one. - */ -void ModelTest::checkChildren ( const QModelIndex &parent, int currentDepth ) -{ - // First just try walking back up the tree. - QModelIndex p = parent; - while ( p.isValid() ) - p = p.parent(); - - // For models that are dynamically populated - if ( model->canFetchMore ( parent ) ) { - fetchingMore = true; - model->fetchMore ( parent ); - fetchingMore = false; - } - - int rows = model->rowCount ( parent ); - int columns = model->columnCount ( parent ); - - if ( rows > 0 ) - QVERIFY( model->hasChildren ( parent ) ); - - // Some further testing against rows(), columns(), and hasChildren() - QVERIFY( rows >= 0 ); - QVERIFY( columns >= 0 ); - if ( rows > 0 ) - QVERIFY( model->hasChildren ( parent ) ); - - //qDebug() << "parent:" << model->data(parent).toString() << "rows:" << rows - // << "columns:" << columns << "parent column:" << parent.column(); - - QVERIFY( !model->hasIndex ( rows + 1, 0, parent ) ); - for ( int r = 0; r < rows; ++r ) { - if ( model->canFetchMore ( parent ) ) { - fetchingMore = true; - model->fetchMore ( parent ); - fetchingMore = false; - } - QVERIFY( !model->hasIndex ( r, columns + 1, parent ) ); - for ( int c = 0; c < columns; ++c ) { - QVERIFY( model->hasIndex ( r, c, parent ) ); - QModelIndex index = model->index ( r, c, parent ); - // rowCount() and columnCount() said that it existed... - QVERIFY( index.isValid() ); - - // index() should always return the same index when called twice in a row - QModelIndex modifiedIndex = model->index ( r, c, parent ); - QVERIFY( index == modifiedIndex ); - - // Make sure we get the same index if we request it twice in a row - QModelIndex a = model->index ( r, c, parent ); - QModelIndex b = model->index ( r, c, parent ); - QVERIFY( a == b ); - - // Some basic checking on the index that is returned - QVERIFY( index.model() == model ); - QCOMPARE( index.row(), r ); - QCOMPARE( index.column(), c ); - // While you can technically return a QVariant usually this is a sign - // of a bug in data(). Disable if this really is ok in your model. -// QVERIFY( model->data ( index, Qt::DisplayRole ).isValid() ); - - // If the next test fails here is some somewhat useful debug you play with. - - if (model->parent(index) != parent) { - qDebug() << r << c << currentDepth << model->data(index).toString() - << model->data(parent).toString(); - qDebug() << index << parent << model->parent(index); -// And a view that you can even use to show the model. -// QTreeView view; -// view.setModel(model); -// view.show(); - } - - // Check that we can get back our real parent. - QCOMPARE( model->parent ( index ), parent ); - - // recursively go down the children - if ( model->hasChildren ( index ) && currentDepth < 10 ) { - //qDebug() << r << c << "has children" << model->rowCount(index); - checkChildren ( index, ++currentDepth ); - }/* else { if (currentDepth >= 10) qDebug() << "checked 10 deep"; };*/ - - // make sure that after testing the children that the index doesn't change. - QModelIndex newerIndex = model->index ( r, c, parent ); - QVERIFY( index == newerIndex ); - } - } -} - -/*! - Tests model's implementation of QAbstractItemModel::data() - */ -void ModelTest::data() -{ - // Invalid index should return an invalid qvariant - QVERIFY( !model->data ( QModelIndex() ).isValid() ); - - if ( model->rowCount() == 0 ) - return; - - // A valid index should have a valid QVariant data - QVERIFY( model->index ( 0, 0 ).isValid() ); - - // shouldn't be able to set data on an invalid index - QVERIFY( !model->setData ( QModelIndex(), QLatin1String ( "foo" ), Qt::DisplayRole ) ); - - // General Purpose roles that should return a QString - QVariant variant = model->data ( model->index ( 0, 0 ), Qt::ToolTipRole ); - if ( variant.isValid() ) { - QVERIFY( variant.canConvert(QMetaType::QString) ); - } - variant = model->data ( model->index ( 0, 0 ), Qt::StatusTipRole ); - if ( variant.isValid() ) { - QVERIFY( variant.canConvert(QMetaType::QString) ); - } - variant = model->data ( model->index ( 0, 0 ), Qt::WhatsThisRole ); - if ( variant.isValid() ) { - QVERIFY( variant.canConvert(QMetaType::QString) ); - } - - // General Purpose roles that should return a QSize - variant = model->data ( model->index ( 0, 0 ), Qt::SizeHintRole ); - if ( variant.isValid() ) { - QVERIFY( variant.canConvert(QMetaType::QSize) ); - } - - // General Purpose roles that should return a QFont - QVariant fontVariant = model->data ( model->index ( 0, 0 ), Qt::FontRole ); - if ( fontVariant.isValid() ) { - QVERIFY( fontVariant.canConvert(QMetaType::QFont) ); - } - - // Check that the alignment is one we know about - QVariant textAlignmentVariant = model->data ( model->index ( 0, 0 ), Qt::TextAlignmentRole ); - if ( textAlignmentVariant.isValid() ) { - int alignment = textAlignmentVariant.toInt(); - QCOMPARE( alignment, ( alignment & ( Qt::AlignHorizontal_Mask | Qt::AlignVertical_Mask ) ) ); - } - - // General Purpose roles that should return a QColor - QVariant colorVariant = model->data ( model->index ( 0, 0 ), Qt::BackgroundColorRole ); - if ( colorVariant.isValid() ) { - QVERIFY( colorVariant.canConvert(QMetaType::QColor) ); - } - - colorVariant = model->data ( model->index ( 0, 0 ), Qt::TextColorRole ); - if ( colorVariant.isValid() ) { - QVERIFY( colorVariant.canConvert(QMetaType::QColor) ); - } - - // Check that the "check state" is one we know about. - QVariant checkStateVariant = model->data ( model->index ( 0, 0 ), Qt::CheckStateRole ); - if ( checkStateVariant.isValid() ) { - int state = checkStateVariant.toInt(); - QVERIFY( state == Qt::Unchecked || - state == Qt::PartiallyChecked || - state == Qt::Checked ); - } -} - -/*! - Store what is about to be inserted to make sure it actually happens - - \sa rowsInserted() - */ -void ModelTest::rowsAboutToBeInserted ( const QModelIndex &parent, int start, int end ) -{ -// Q_UNUSED(end); -// qDebug() << "rowsAboutToBeInserted" << "start=" << start << "end=" << end << "parent=" << model->data ( parent ).toString() -// << "current count of parent=" << model->rowCount ( parent ); // << "display of last=" << model->data( model->index(start-1, 0, parent) ); -// qDebug() << model->index(start-1, 0, parent) << model->data( model->index(start-1, 0, parent) ); - Changing c; - c.parent = parent; - c.oldSize = model->rowCount ( parent ); - c.last = model->data ( model->index ( start - 1, 0, parent ) ); - c.next = model->data ( model->index ( start, 0, parent ) ); -qDebug() << start << " - " << parent << " - " << model->data ( model->index ( start, 0, parent ), Qt::UserRole ); - insert.push ( c ); -} - -/*! - Confirm that what was said was going to happen actually did - - \sa rowsAboutToBeInserted() - */ -void ModelTest::rowsInserted ( const QModelIndex & parent, int start, int end ) -{ - Changing c = insert.pop(); - QVERIFY( c.parent == parent ); -// qDebug() << "rowsInserted" << "start=" << start << "end=" << end << "oldsize=" << c.oldSize -// << "parent=" << model->data ( parent ).toString() << "current rowcount of parent=" << model->rowCount ( parent ); - -// for (int ii=start; ii <= end; ii++) -// { -// qDebug() << "itemWasInserted:" << ii << model->data ( model->index ( ii, 0, parent )); -// } -// qDebug(); - - QVERIFY( c.oldSize + ( end - start + 1 ) == model->rowCount ( parent ) ); - QVERIFY( c.last == model->data ( model->index ( start - 1, 0, c.parent ) ) ); - - if (c.next != model->data(model->index(end + 1, 0, c.parent))) { - qDebug() << start << end; - for (int i=0; i < model->rowCount(); ++i) - qDebug() << model->index(i, 0).data().toString(); - qDebug() << c.next << model->data(model->index(end + 1, 0, c.parent)); - } - -if (c.next != model->data ( model->index ( end + 1, 0, c.parent ) )) { - qDebug("break"); -} - QVERIFY( c.next == model->data ( model->index ( end + 1, 0, c.parent ) ) ); -} - -void ModelTest::layoutAboutToBeChanged() -{ - for ( int i = 0; i < qBound ( 0, model->rowCount(), 100 ); ++i ) - changing.append ( QPersistentModelIndex ( model->index ( i, 0 ) ) ); -} - -void ModelTest::layoutChanged() -{ - for ( int i = 0; i < changing.count(); ++i ) { - QPersistentModelIndex p = changing[i]; - QVERIFY( p == model->index ( p.row(), p.column(), p.parent() ) ); - } - changing.clear(); -} - -/*! - Store what is about to be inserted to make sure it actually happens - - \sa rowsRemoved() - */ -void ModelTest::rowsAboutToBeRemoved ( const QModelIndex &parent, int start, int end ) -{ -qDebug() << "ratbr" << parent << start << end; - Changing c; - c.parent = parent; - c.oldSize = model->rowCount ( parent ); - c.last = model->data ( model->index ( start - 1, 0, parent ) ); - c.next = model->data ( model->index ( end + 1, 0, parent ) ); - remove.push ( c ); -} - -/*! - Confirm that what was said was going to happen actually did - - \sa rowsAboutToBeRemoved() - */ -void ModelTest::rowsRemoved ( const QModelIndex & parent, int start, int end ) -{ - qDebug() << "rr" << parent << start << end; - Changing c = remove.pop(); - QVERIFY( c.parent == parent ); - QVERIFY( c.oldSize - ( end - start + 1 ) == model->rowCount ( parent ) ); - QVERIFY( c.last == model->data ( model->index ( start - 1, 0, c.parent ) ) ); - QVERIFY( c.next == model->data ( model->index ( start, 0, c.parent ) ) ); -} - - +/****************************************************************************
+**
+** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the test suite of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia. For licensing terms and
+** conditions see http://qt.digia.com/licensing. For further information
+** use the contact form at http://qt.digia.com/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Digia gives you certain additional
+** rights. These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+
+#include <QtGui/QtGui>
+
+#include "modeltest.h"
+
+#include <QtTest/QtTest>
+
+#undef QVERIFY
+#define QVERIFY Q_ASSERT
+#undef QCOMPARE
+#define QCOMPARE(x, y) Q_ASSERT(x == y)
+
+Q_DECLARE_METATYPE ( QModelIndex )
+
+/*!
+ Connect to all of the models signals. Whenever anything happens recheck everything.
+*/
+ModelTest::ModelTest ( QAbstractItemModel *_model, QObject *parent ) : QObject ( parent ), model ( _model ), fetchingMore ( false )
+{
+ if (!model)
+ qFatal("%s: model must not be null", Q_FUNC_INFO);
+
+ connect ( model, SIGNAL ( columnsAboutToBeInserted ( const QModelIndex &, int, int ) ),
+ this, SLOT ( runAllTests() ) );
+ connect ( model, SIGNAL ( columnsAboutToBeRemoved ( const QModelIndex &, int, int ) ),
+ this, SLOT ( runAllTests() ) );
+ connect ( model, SIGNAL ( columnsInserted ( const QModelIndex &, int, int ) ),
+ this, SLOT ( runAllTests() ) );
+ connect ( model, SIGNAL ( columnsRemoved ( const QModelIndex &, int, int ) ),
+ this, SLOT ( runAllTests() ) );
+ connect ( model, SIGNAL ( dataChanged ( const QModelIndex &, const QModelIndex & ) ),
+ this, SLOT ( runAllTests() ) );
+ connect ( model, SIGNAL ( headerDataChanged ( Qt::Orientation, int, int ) ),
+ this, SLOT ( runAllTests() ) );
+ connect ( model, SIGNAL ( layoutAboutToBeChanged () ), this, SLOT ( runAllTests() ) );
+ connect ( model, SIGNAL ( layoutChanged () ), this, SLOT ( runAllTests() ) );
+ connect ( model, SIGNAL ( modelReset () ), this, SLOT ( runAllTests() ) );
+ connect ( model, SIGNAL ( rowsAboutToBeInserted ( const QModelIndex &, int, int ) ),
+ this, SLOT ( runAllTests() ) );
+ connect ( model, SIGNAL ( rowsAboutToBeRemoved ( const QModelIndex &, int, int ) ),
+ this, SLOT ( runAllTests() ) );
+ connect ( model, SIGNAL ( rowsInserted ( const QModelIndex &, int, int ) ),
+ this, SLOT ( runAllTests() ) );
+ connect ( model, SIGNAL ( rowsRemoved ( const QModelIndex &, int, int ) ),
+ this, SLOT ( runAllTests() ) );
+
+ // Special checks for inserting/removing
+ connect ( model, SIGNAL ( layoutAboutToBeChanged() ),
+ this, SLOT ( layoutAboutToBeChanged() ) );
+ connect ( model, SIGNAL ( layoutChanged() ),
+ this, SLOT ( layoutChanged() ) );
+
+ connect ( model, SIGNAL ( rowsAboutToBeInserted ( const QModelIndex &, int, int ) ),
+ this, SLOT ( rowsAboutToBeInserted ( const QModelIndex &, int, int ) ) );
+ connect ( model, SIGNAL ( rowsAboutToBeRemoved ( const QModelIndex &, int, int ) ),
+ this, SLOT ( rowsAboutToBeRemoved ( const QModelIndex &, int, int ) ) );
+ connect ( model, SIGNAL ( rowsInserted ( const QModelIndex &, int, int ) ),
+ this, SLOT ( rowsInserted ( const QModelIndex &, int, int ) ) );
+ connect ( model, SIGNAL ( rowsRemoved ( const QModelIndex &, int, int ) ),
+ this, SLOT ( rowsRemoved ( const QModelIndex &, int, int ) ) );
+
+ runAllTests();
+}
+
+void ModelTest::runAllTests()
+{
+ if ( fetchingMore )
+ return;
+ nonDestructiveBasicTest();
+ rowCount();
+ columnCount();
+ hasIndex();
+ index();
+ parent();
+ data();
+}
+
+/*!
+ nonDestructiveBasicTest tries to call a number of the basic functions (not all)
+ to make sure the model doesn't outright segfault, testing the functions that makes sense.
+*/
+void ModelTest::nonDestructiveBasicTest()
+{
+ QVERIFY( model->buddy ( QModelIndex() ) == QModelIndex() );
+ model->canFetchMore ( QModelIndex() );
+ QVERIFY( model->columnCount ( QModelIndex() ) >= 0 );
+ QVERIFY( model->data ( QModelIndex() ) == QVariant() );
+ fetchingMore = true;
+ model->fetchMore ( QModelIndex() );
+ fetchingMore = false;
+ Qt::ItemFlags flags = model->flags ( QModelIndex() );
+ QVERIFY( flags == Qt::ItemIsDropEnabled || flags == 0 );
+ model->hasChildren ( QModelIndex() );
+ model->hasIndex ( 0, 0 );
+ model->headerData ( 0, Qt::Horizontal );
+ model->index ( 0, 0 );
+ model->itemData ( QModelIndex() );
+ QVariant cache;
+ model->match ( QModelIndex(), -1, cache );
+ model->mimeTypes();
+ QVERIFY( model->parent ( QModelIndex() ) == QModelIndex() );
+ QVERIFY( model->rowCount() >= 0 );
+ QVariant variant;
+ model->setData ( QModelIndex(), variant, -1 );
+ model->setHeaderData ( -1, Qt::Horizontal, QVariant() );
+ model->setHeaderData ( 999999, Qt::Horizontal, QVariant() );
+ QMap<int, QVariant> roles;
+ model->sibling ( 0, 0, QModelIndex() );
+ model->span ( QModelIndex() );
+ model->supportedDropActions();
+}
+
+/*!
+ Tests model's implementation of QAbstractItemModel::rowCount() and hasChildren()
+
+ Models that are dynamically populated are not as fully tested here.
+ */
+void ModelTest::rowCount()
+{
+// qDebug() << "rc";
+ // check top row
+
+ QModelIndex topIndex = model->index ( 0, 0, QModelIndex() );
+ if (!model->hasChildren ( topIndex ) && model->rowCount(topIndex) > 0) {
+ qDebug() << "it's gonna blow: " << topIndex;
+ }
+
+ int rows = model->rowCount ( topIndex );
+ QVERIFY( rows >= 0 );
+ if ( rows > 0 ) {
+ QVERIFY( model->hasChildren ( topIndex ) );
+ }
+
+ QModelIndex secondLevelIndex = model->index ( 0, 0, topIndex );
+ if ( secondLevelIndex.isValid() ) { // not the top level
+ // check a row count where parent is valid
+ rows = model->rowCount ( secondLevelIndex );
+ QVERIFY( rows >= 0 );
+ if ( rows > 0 )
+ QVERIFY( model->hasChildren ( secondLevelIndex ) );
+ }
+
+ // The models rowCount() is tested more extensively in checkChildren(),
+ // but this catches the big mistakes
+}
+
+/*!
+ Tests model's implementation of QAbstractItemModel::columnCount() and hasChildren()
+ */
+void ModelTest::columnCount()
+{
+ // check top row
+ QModelIndex topIndex = model->index ( 0, 0, QModelIndex() );
+ QVERIFY( model->columnCount ( topIndex ) >= 0 );
+
+ // check a column count where parent is valid
+ QModelIndex childIndex = model->index ( 0, 0, topIndex );
+ if ( childIndex.isValid() )
+ QVERIFY( model->columnCount ( childIndex ) >= 0 );
+
+ // columnCount() is tested more extensively in checkChildren(),
+ // but this catches the big mistakes
+}
+
+/*!
+ Tests model's implementation of QAbstractItemModel::hasIndex()
+ */
+void ModelTest::hasIndex()
+{
+// qDebug() << "hi";
+ // Make sure that invalid values returns an invalid index
+ QVERIFY( !model->hasIndex ( -2, -2 ) );
+ QVERIFY( !model->hasIndex ( -2, 0 ) );
+ QVERIFY( !model->hasIndex ( 0, -2 ) );
+
+ int rows = model->rowCount();
+ int columns = model->columnCount();
+
+ // check out of bounds
+ QVERIFY( !model->hasIndex ( rows, columns ) );
+ QVERIFY( !model->hasIndex ( rows + 1, columns + 1 ) );
+
+ if ( rows > 0 )
+ QVERIFY( model->hasIndex ( 0, 0 ) );
+
+ // hasIndex() is tested more extensively in checkChildren(),
+ // but this catches the big mistakes
+}
+
+/*!
+ Tests model's implementation of QAbstractItemModel::index()
+ */
+void ModelTest::index()
+{
+// qDebug() << "i";
+ // Make sure that invalid values returns an invalid index
+/* QVERIFY( model->index ( -2, -2 ) == QModelIndex() );
+ QVERIFY( model->index ( -2, 0 ) == QModelIndex() );
+ QVERIFY( model->index ( 0, -2 ) == QModelIndex() );*/
+ QVERIFY( !model->index ( -2, -2 ).isValid() );
+ QVERIFY( !model->index ( -2, 0 ).isValid() );
+ QVERIFY( !model->index ( 0, -2 ).isValid() );
+
+ int rows = model->rowCount();
+ int columns = model->columnCount();
+
+ if ( rows == 0 )
+ return;
+
+ // Catch off by one errors
+ //QVERIFY( model->index ( rows, columns ) == QModelIndex() );
+ QVERIFY( !model->index ( rows, columns ).isValid() );
+ QVERIFY( model->index ( 0, 0 ).isValid() );
+
+ // Make sure that the same index is *always* returned
+ QModelIndex a = model->index ( 0, 0 );
+ QModelIndex b = model->index ( 0, 0 );
+ QVERIFY( a == b );
+
+ // index() is tested more extensively in checkChildren(),
+ // but this catches the big mistakes
+}
+
+/*!
+ Tests model's implementation of QAbstractItemModel::parent()
+ */
+void ModelTest::parent()
+{
+// qDebug() << "p";
+ // Make sure the model wont crash and will return an invalid QModelIndex
+ // when asked for the parent of an invalid index.
+ QVERIFY( model->parent ( QModelIndex() ) == QModelIndex() );
+
+ if ( model->rowCount() == 0 )
+ return;
+
+ // Column 0 | Column 1 |
+ // QModelIndex() | |
+ // \- topIndex | topIndex1 |
+ // \- childIndex | childIndex1 |
+
+ // Common error test #1, make sure that a top level index has a parent
+ // that is a invalid QModelIndex.
+ QModelIndex topIndex = model->index ( 0, 0, QModelIndex() );
+ QVERIFY( model->parent ( topIndex ) == QModelIndex() );
+
+ // Common error test #2, make sure that a second level index has a parent
+ // that is the first level index.
+ if ( model->rowCount ( topIndex ) > 0 ) {
+ QModelIndex childIndex = model->index ( 0, 0, topIndex );
+ QVERIFY( model->parent ( childIndex ) == topIndex );
+ }
+
+ // Common error test #3, the second column should NOT have the same children
+ // as the first column in a row.
+ // Usually the second column shouldn't have children.
+ QModelIndex topIndex1 = model->index ( 0, 1, QModelIndex() );
+ if ( model->rowCount ( topIndex1 ) > 0 ) {
+ QModelIndex childIndex = model->index ( 0, 0, topIndex );
+ QModelIndex childIndex1 = model->index ( 0, 0, topIndex1 );
+ QVERIFY( childIndex != childIndex1 );
+ }
+
+ // Full test, walk n levels deep through the model making sure that all
+ // parent's children correctly specify their parent.
+ checkChildren ( QModelIndex() );
+}
+
+/*!
+ Called from the parent() test.
+
+ A model that returns an index of parent X should also return X when asking
+ for the parent of the index.
+
+ This recursive function does pretty extensive testing on the whole model in an
+ effort to catch edge cases.
+
+ This function assumes that rowCount(), columnCount() and index() already work.
+ If they have a bug it will point it out, but the above tests should have already
+ found the basic bugs because it is easier to figure out the problem in
+ those tests then this one.
+ */
+void ModelTest::checkChildren ( const QModelIndex &parent, int currentDepth )
+{
+ // First just try walking back up the tree.
+ QModelIndex p = parent;
+ while ( p.isValid() )
+ p = p.parent();
+
+ // For models that are dynamically populated
+ if ( model->canFetchMore ( parent ) ) {
+ fetchingMore = true;
+ model->fetchMore ( parent );
+ fetchingMore = false;
+ }
+
+ int rows = model->rowCount ( parent );
+ int columns = model->columnCount ( parent );
+
+ if ( rows > 0 )
+ QVERIFY( model->hasChildren ( parent ) );
+
+ // Some further testing against rows(), columns(), and hasChildren()
+ QVERIFY( rows >= 0 );
+ QVERIFY( columns >= 0 );
+ if ( rows > 0 )
+ QVERIFY( model->hasChildren ( parent ) );
+
+ //qDebug() << "parent:" << model->data(parent).toString() << "rows:" << rows
+ // << "columns:" << columns << "parent column:" << parent.column();
+
+ QVERIFY( !model->hasIndex ( rows + 1, 0, parent ) );
+ for ( int r = 0; r < rows; ++r ) {
+ if ( model->canFetchMore ( parent ) ) {
+ fetchingMore = true;
+ model->fetchMore ( parent );
+ fetchingMore = false;
+ }
+ QVERIFY( !model->hasIndex ( r, columns + 1, parent ) );
+ for ( int c = 0; c < columns; ++c ) {
+ QVERIFY( model->hasIndex ( r, c, parent ) );
+ QModelIndex index = model->index ( r, c, parent );
+ // rowCount() and columnCount() said that it existed...
+ QVERIFY( index.isValid() );
+
+ // index() should always return the same index when called twice in a row
+ QModelIndex modifiedIndex = model->index ( r, c, parent );
+ QVERIFY( index == modifiedIndex );
+
+ // Make sure we get the same index if we request it twice in a row
+ QModelIndex a = model->index ( r, c, parent );
+ QModelIndex b = model->index ( r, c, parent );
+ QVERIFY( a == b );
+
+ // Some basic checking on the index that is returned
+ QVERIFY( index.model() == model );
+ QCOMPARE( index.row(), r );
+ QCOMPARE( index.column(), c );
+ // While you can technically return a QVariant usually this is a sign
+ // of a bug in data(). Disable if this really is ok in your model.
+// QVERIFY( model->data ( index, Qt::DisplayRole ).isValid() );
+
+ // If the next test fails here is some somewhat useful debug you play with.
+
+ if (model->parent(index) != parent) {
+ qDebug() << r << c << currentDepth << model->data(index).toString()
+ << model->data(parent).toString();
+ qDebug() << index << parent << model->parent(index);
+// And a view that you can even use to show the model.
+// QTreeView view;
+// view.setModel(model);
+// view.show();
+ }
+
+ // Check that we can get back our real parent.
+ QCOMPARE( model->parent ( index ), parent );
+
+ // recursively go down the children
+ if ( model->hasChildren ( index ) && currentDepth < 10 ) {
+ //qDebug() << r << c << "has children" << model->rowCount(index);
+ checkChildren ( index, ++currentDepth );
+ }/* else { if (currentDepth >= 10) qDebug() << "checked 10 deep"; };*/
+
+ // make sure that after testing the children that the index doesn't change.
+ QModelIndex newerIndex = model->index ( r, c, parent );
+ QVERIFY( index == newerIndex );
+ }
+ }
+}
+
+/*!
+ Tests model's implementation of QAbstractItemModel::data()
+ */
+void ModelTest::data()
+{
+ // Invalid index should return an invalid qvariant
+ QVERIFY( !model->data ( QModelIndex() ).isValid() );
+
+ if ( model->rowCount() == 0 )
+ return;
+
+ // A valid index should have a valid QVariant data
+ QVERIFY( model->index ( 0, 0 ).isValid() );
+
+ // shouldn't be able to set data on an invalid index
+ QVERIFY( !model->setData ( QModelIndex(), QLatin1String ( "foo" ), Qt::DisplayRole ) );
+
+ // General Purpose roles that should return a QString
+ QVariant variant = model->data ( model->index ( 0, 0 ), Qt::ToolTipRole );
+ if ( variant.isValid() ) {
+ QVERIFY( variant.canConvert(QMetaType::QString) );
+ }
+ variant = model->data ( model->index ( 0, 0 ), Qt::StatusTipRole );
+ if ( variant.isValid() ) {
+ QVERIFY( variant.canConvert(QMetaType::QString) );
+ }
+ variant = model->data ( model->index ( 0, 0 ), Qt::WhatsThisRole );
+ if ( variant.isValid() ) {
+ QVERIFY( variant.canConvert(QMetaType::QString) );
+ }
+
+ // General Purpose roles that should return a QSize
+ variant = model->data ( model->index ( 0, 0 ), Qt::SizeHintRole );
+ if ( variant.isValid() ) {
+ QVERIFY( variant.canConvert(QMetaType::QSize) );
+ }
+
+ // General Purpose roles that should return a QFont
+ QVariant fontVariant = model->data ( model->index ( 0, 0 ), Qt::FontRole );
+ if ( fontVariant.isValid() ) {
+ QVERIFY( fontVariant.canConvert(QMetaType::QFont) );
+ }
+
+ // Check that the alignment is one we know about
+ QVariant textAlignmentVariant = model->data ( model->index ( 0, 0 ), Qt::TextAlignmentRole );
+ if ( textAlignmentVariant.isValid() ) {
+ int alignment = textAlignmentVariant.toInt();
+ QCOMPARE( alignment, ( alignment & ( Qt::AlignHorizontal_Mask | Qt::AlignVertical_Mask ) ) );
+ }
+
+ // General Purpose roles that should return a QColor
+ QVariant colorVariant = model->data ( model->index ( 0, 0 ), Qt::BackgroundColorRole );
+ if ( colorVariant.isValid() ) {
+ QVERIFY( colorVariant.canConvert(QMetaType::QColor) );
+ }
+
+ colorVariant = model->data ( model->index ( 0, 0 ), Qt::TextColorRole );
+ if ( colorVariant.isValid() ) {
+ QVERIFY( colorVariant.canConvert(QMetaType::QColor) );
+ }
+
+ // Check that the "check state" is one we know about.
+ QVariant checkStateVariant = model->data ( model->index ( 0, 0 ), Qt::CheckStateRole );
+ if ( checkStateVariant.isValid() ) {
+ int state = checkStateVariant.toInt();
+ QVERIFY( state == Qt::Unchecked ||
+ state == Qt::PartiallyChecked ||
+ state == Qt::Checked );
+ }
+}
+
+/*!
+ Store what is about to be inserted to make sure it actually happens
+
+ \sa rowsInserted()
+ */
+void ModelTest::rowsAboutToBeInserted ( const QModelIndex &parent, int start, int end )
+{
+// Q_UNUSED(end);
+// qDebug() << "rowsAboutToBeInserted" << "start=" << start << "end=" << end << "parent=" << model->data ( parent ).toString()
+// << "current count of parent=" << model->rowCount ( parent ); // << "display of last=" << model->data( model->index(start-1, 0, parent) );
+// qDebug() << model->index(start-1, 0, parent) << model->data( model->index(start-1, 0, parent) );
+ Changing c;
+ c.parent = parent;
+ c.oldSize = model->rowCount ( parent );
+ c.last = model->data ( model->index ( start - 1, 0, parent ) );
+ c.next = model->data ( model->index ( start, 0, parent ) );
+qDebug() << start << " - " << parent << " - " << model->data ( model->index ( start, 0, parent ), Qt::UserRole );
+ insert.push ( c );
+}
+
+/*!
+ Confirm that what was said was going to happen actually did
+
+ \sa rowsAboutToBeInserted()
+ */
+void ModelTest::rowsInserted ( const QModelIndex & parent, int start, int end )
+{
+ Changing c = insert.pop();
+ QVERIFY( c.parent == parent );
+// qDebug() << "rowsInserted" << "start=" << start << "end=" << end << "oldsize=" << c.oldSize
+// << "parent=" << model->data ( parent ).toString() << "current rowcount of parent=" << model->rowCount ( parent );
+
+// for (int ii=start; ii <= end; ii++)
+// {
+// qDebug() << "itemWasInserted:" << ii << model->data ( model->index ( ii, 0, parent ));
+// }
+// qDebug();
+
+ QVERIFY( c.oldSize + ( end - start + 1 ) == model->rowCount ( parent ) );
+ QVERIFY( c.last == model->data ( model->index ( start - 1, 0, c.parent ) ) );
+
+ if (c.next != model->data(model->index(end + 1, 0, c.parent))) {
+ qDebug() << start << end;
+ for (int i=0; i < model->rowCount(); ++i)
+ qDebug() << model->index(i, 0).data().toString();
+ qDebug() << c.next << model->data(model->index(end + 1, 0, c.parent));
+ }
+
+if (c.next != model->data ( model->index ( end + 1, 0, c.parent ) )) {
+ qDebug("break");
+}
+ QVERIFY( c.next == model->data ( model->index ( end + 1, 0, c.parent ) ) );
+}
+
+void ModelTest::layoutAboutToBeChanged()
+{
+ for ( int i = 0; i < qBound ( 0, model->rowCount(), 100 ); ++i )
+ changing.append ( QPersistentModelIndex ( model->index ( i, 0 ) ) );
+}
+
+void ModelTest::layoutChanged()
+{
+ for ( int i = 0; i < changing.count(); ++i ) {
+ QPersistentModelIndex p = changing[i];
+ QVERIFY( p == model->index ( p.row(), p.column(), p.parent() ) );
+ }
+ changing.clear();
+}
+
+/*!
+ Store what is about to be inserted to make sure it actually happens
+
+ \sa rowsRemoved()
+ */
+void ModelTest::rowsAboutToBeRemoved ( const QModelIndex &parent, int start, int end )
+{
+qDebug() << "ratbr" << parent << start << end;
+ Changing c;
+ c.parent = parent;
+ c.oldSize = model->rowCount ( parent );
+ c.last = model->data ( model->index ( start - 1, 0, parent ) );
+ c.next = model->data ( model->index ( end + 1, 0, parent ) );
+ remove.push ( c );
+}
+
+/*!
+ Confirm that what was said was going to happen actually did
+
+ \sa rowsAboutToBeRemoved()
+ */
+void ModelTest::rowsRemoved ( const QModelIndex & parent, int start, int end )
+{
+ qDebug() << "rr" << parent << start << end;
+ Changing c = remove.pop();
+ QVERIFY( c.parent == parent );
+ QVERIFY( c.oldSize - ( end - start + 1 ) == model->rowCount ( parent ) );
+ QVERIFY( c.last == model->data ( model->index ( start - 1, 0, c.parent ) ) );
+ QVERIFY( c.next == model->data ( model->index ( start, 0, c.parent ) ) );
+}
+
+
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