--- /dev/null
+/****************************************************************************
+**
+** Copyright (C) 2007 Trolltech ASA. All rights reserved.
+**
+** This file is part of the Qt Concurrent project on Trolltech Labs.
+**
+** This file may be used under the terms of the GNU General Public
+** License version 2.0 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 GNU
+** General Public Licensing requirements will be met:
+** http://www.trolltech.com/products/qt/opensource.html
+**
+** If you are unsure which license is appropriate for your use, please
+** review the following information:
+** http://www.trolltech.com/products/qt/licensing.html or contact the
+** sales department at sales@trolltech.com.
+**
+** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
+** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+**
+****************************************************************************/
+
+#include <QtGui/QtGui>
+
+#include "modeltest.h"
+
+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)
+{
+ Q_ASSERT(model);
+
+ 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()
+{
+ Q_ASSERT(model->buddy(QModelIndex()) == QModelIndex());
+ model->canFetchMore(QModelIndex());
+ Q_ASSERT(model->columnCount(QModelIndex()) >= 0);
+ Q_ASSERT(model->data(QModelIndex()) == QVariant());
+ fetchingMore = true;
+ model->fetchMore(QModelIndex());
+ fetchingMore = false;
+ Qt::ItemFlags flags = model->flags(QModelIndex());
+ Q_ASSERT(flags == Qt::ItemIsDropEnabled || flags == 0);
+ model->hasChildren(QModelIndex());
+ model->hasIndex(0, 0);
+ model->headerData(0, Qt::Horizontal);
+ model->index(0, 0);
+ Q_ASSERT(model->index(-1, -1) == QModelIndex());
+ model->itemData(QModelIndex());
+ QVariant cache;
+ model->match(QModelIndex(), -1, cache);
+ model->mimeTypes();
+ Q_ASSERT(model->parent(QModelIndex()) == QModelIndex());
+ Q_ASSERT(model->rowCount() >= 0);
+ QVariant variant;
+ model->setData(QModelIndex(), variant, -1);
+ model->setHeaderData(-1, Qt::Horizontal, QVariant());
+ model->setHeaderData(0, 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()
+{
+ // check top row
+ QModelIndex topIndex = model->index(0, 0, QModelIndex());
+ int rows = model->rowCount(topIndex);
+ Q_ASSERT(rows >= 0);
+ if (rows > 0)
+ Q_ASSERT(model->hasChildren(topIndex) == true);
+
+ 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);
+ Q_ASSERT(rows >= 0);
+ if (rows > 0)
+ Q_ASSERT(model->hasChildren(secondLevelIndex) == true);
+ }
+
+ // 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());
+ Q_ASSERT(model->columnCount(topIndex) >= 0);
+
+ // check a column count where parent is valid
+ QModelIndex childIndex = model->index(0, 0, topIndex);
+ if (childIndex.isValid())
+ Q_ASSERT(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()
+{
+ // Make sure that invalid values returns an invalid index
+ Q_ASSERT(model->hasIndex(-2, -2) == false);
+ Q_ASSERT(model->hasIndex(-2, 0) == false);
+ Q_ASSERT(model->hasIndex(0, -2) == false);
+
+ int rows = model->rowCount();
+ int columns = model->columnCount();
+
+ // check out of bounds
+ Q_ASSERT(model->hasIndex(rows, columns) == false);
+ Q_ASSERT(model->hasIndex(rows + 1, columns + 1) == false);
+
+ if (rows > 0)
+ Q_ASSERT(model->hasIndex(0, 0) == true);
+
+ // hasIndex() is tested more extensively in checkChildren(),
+ // but this catches the big mistakes
+}
+
+/*!
+ Tests model's implementation of QAbstractItemModel::index()
+ */
+void ModelTest::index()
+{
+ // Make sure that invalid values returns an invalid index
+ Q_ASSERT(model->index(-2, -2) == QModelIndex());
+ Q_ASSERT(model->index(-2, 0) == QModelIndex());
+ Q_ASSERT(model->index(0, -2) == QModelIndex());
+
+ int rows = model->rowCount();
+ int columns = model->columnCount();
+
+ if (rows == 0)
+ return;
+
+ // Catch off by one errors
+ Q_ASSERT(model->index(rows, columns) == QModelIndex());
+ Q_ASSERT(model->index(0, 0).isValid() == true);
+
+ // Make sure that the same index is *always* returned
+ QModelIndex a = model->index(0, 0);
+ QModelIndex b = model->index(0, 0);
+ Q_ASSERT(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()
+{
+ // Make sure the model wont crash and will return an invalid QModelIndex
+ // when asked for the parent of an invalid index.
+ Q_ASSERT(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());
+ Q_ASSERT(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);
+ Q_ASSERT(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);
+ Q_ASSERT(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)
+ Q_ASSERT(model->hasChildren(parent));
+
+ // Some further testing against rows(), columns(), and hasChildren()
+ Q_ASSERT(rows >= 0);
+ Q_ASSERT(columns >= 0);
+ if (rows > 0)
+ Q_ASSERT(model->hasChildren(parent) == true);
+
+ //qDebug() << "parent:" << model->data(parent).toString() << "rows:" << rows
+ // << "columns:" << columns << "parent column:" << parent.column();
+
+ Q_ASSERT(model->hasIndex(rows + 1, 0, parent) == false);
+ for (int r = 0; r < rows; ++r) {
+ if (model->canFetchMore(parent)) {
+ fetchingMore = true;
+ model->fetchMore(parent);
+ fetchingMore = false;
+ }
+ Q_ASSERT(model->hasIndex(r, columns + 1, parent) == false);
+ for (int c = 0; c < columns; ++c) {
+ Q_ASSERT(model->hasIndex(r, c, parent) == true);
+ QModelIndex index = model->index(r, c, parent);
+ // rowCount() and columnCount() said that it existed...
+ Q_ASSERT(index.isValid() == true);
+
+ // index() should always return the same index when called twice in a row
+ QModelIndex modifiedIndex = model->index(r, c, parent);
+ Q_ASSERT(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);
+ Q_ASSERT(a == b);
+
+ // Some basic checking on the index that is returned
+ Q_ASSERT(index.model() == model);
+ Q_ASSERT(index.row() == r);
+ Q_ASSERT(index.column() == c);
+ // While you can technically return a QVariant usually this is a sign
+ // of an bug in data() Disable if this really is ok in your model.
+ //Q_ASSERT(model->data(index, Qt::DisplayRole).isValid() == true);
+
+ // 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.
+ QModelIndex p = model->parent(index);
+ //qDebug() << "child:" << index;
+ //qDebug() << p;
+ //qDebug() << parent;
+ Q_ASSERT(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);
+ Q_ASSERT(index == newerIndex);
+ }
+ }
+}
+
+/*!
+ Tests model's implementation of QAbstractItemModel::data()
+ */
+void ModelTest::data()
+{
+ // Invalid index should return an invalid qvariant
+ Q_ASSERT(!model->data(QModelIndex()).isValid());
+
+ if (model->rowCount() == 0)
+ return;
+
+ // A valid index should have a valid QVariant data
+ Q_ASSERT(model->index(0, 0).isValid());
+
+ // shouldn't be able to set data on an invalid index
+ Q_ASSERT(model->setData(QModelIndex(), QLatin1String("foo"), Qt::DisplayRole) == false);
+
+ // General Purpose roles that should return a QString
+ QVariant variant = model->data(model->index(0, 0), Qt::ToolTipRole);
+ if (variant.isValid()) {
+ Q_ASSERT(qVariantCanConvert<QString>(variant));
+ }
+ variant = model->data(model->index(0, 0), Qt::StatusTipRole);
+ if (variant.isValid()) {
+ Q_ASSERT(qVariantCanConvert<QString>(variant));
+ }
+ variant = model->data(model->index(0, 0), Qt::WhatsThisRole);
+ if (variant.isValid()) {
+ Q_ASSERT(qVariantCanConvert<QString>(variant));
+ }
+
+ // General Purpose roles that should return a QSize
+ variant = model->data(model->index(0, 0), Qt::SizeHintRole);
+ if (variant.isValid()) {
+ Q_ASSERT(qVariantCanConvert<QSize>(variant));
+ }
+
+ // General Purpose roles that should return a QFont
+ QVariant fontVariant = model->data(model->index(0, 0), Qt::FontRole);
+ if (fontVariant.isValid()) {
+ Q_ASSERT(qVariantCanConvert<QFont>(fontVariant));
+ }
+
+ // 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();
+ Q_ASSERT(alignment == Qt::AlignLeft ||
+ alignment == Qt::AlignRight ||
+ alignment == Qt::AlignHCenter ||
+ alignment == Qt::AlignJustify ||
+ alignment == Qt::AlignTop ||
+ alignment == Qt::AlignBottom ||
+ alignment == Qt::AlignVCenter ||
+ alignment == Qt::AlignCenter ||
+ alignment == Qt::AlignAbsolute ||
+ alignment == Qt::AlignLeading ||
+ alignment == Qt::AlignTrailing);
+ }
+
+ // General Purpose roles that should return a QColor
+ QVariant colorVariant = model->data(model->index(0, 0), Qt::BackgroundColorRole);
+ if (colorVariant.isValid()) {
+ Q_ASSERT(qVariantCanConvert<QColor>(colorVariant));
+ }
+
+ colorVariant = model->data(model->index(0, 0), Qt::TextColorRole);
+ if (colorVariant.isValid()) {
+ Q_ASSERT(qVariantCanConvert<QColor>(colorVariant));
+ }
+
+ // 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();
+ Q_ASSERT(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);
+ 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));
+ 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();
+ Q_ASSERT(c.parent == parent);
+ Q_ASSERT(c.oldSize + (end - start + 1) == model->rowCount(parent));
+ Q_ASSERT(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));
+ }
+ */
+ Q_ASSERT(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];
+ Q_ASSERT(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)
+{
+ 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)
+{
+ Changing c = remove.pop();
+ Q_ASSERT(c.parent == parent);
+ Q_ASSERT(c.oldSize - (end - start + 1) == model->rowCount(parent));
+ Q_ASSERT(c.last == model->data(model->index(start - 1, 0, c.parent)));
+ Q_ASSERT(c.next == model->data(model->index(start, 0, c.parent)));
+}
+
projects / dorian / blobdiff