510 lines
16 KiB
C++
510 lines
16 KiB
C++
// Copyright (C) 2016 The Qt Company Ltd.
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// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
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#include <QtTest/QtTest>
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#include <QJSEngine>
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#include <QJSValue>
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#include <QJSValueIterator>
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class tst_QJSValueIterator : public QObject
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{
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Q_OBJECT
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public:
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tst_QJSValueIterator();
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virtual ~tst_QJSValueIterator();
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private slots:
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void iterateForward_data();
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void iterateForward();
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void iterateArray_data();
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void iterateArray();
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void iterateString();
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#if 0
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void iterateGetterSetter();
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#endif
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void assignObjectToIterator();
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void iterateNonObject();
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void iterateOverObjectFromDeletedEngine();
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void iterateWithNext();
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};
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tst_QJSValueIterator::tst_QJSValueIterator()
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{
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}
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tst_QJSValueIterator::~tst_QJSValueIterator()
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{
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}
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void tst_QJSValueIterator::iterateForward_data()
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{
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QTest::addColumn<QStringList>("propertyNames");
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QTest::addColumn<QStringList>("propertyValues");
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QTest::newRow("no properties")
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<< QStringList() << QStringList();
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QTest::newRow("foo=bar")
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<< (QStringList() << "foo")
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<< (QStringList() << "bar");
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QTest::newRow("foo=bar, baz=123")
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<< (QStringList() << "foo" << "baz")
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<< (QStringList() << "bar" << "123");
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QTest::newRow("foo=bar, baz=123, rab=oof")
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<< (QStringList() << "foo" << "baz" << "rab")
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<< (QStringList() << "bar" << "123" << "oof");
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}
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void tst_QJSValueIterator::iterateForward()
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{
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QFETCH(QStringList, propertyNames);
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QFETCH(QStringList, propertyValues);
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QMap<QString, QString> pmap;
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QCOMPARE(propertyNames.size(), propertyValues.size());
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QJSEngine engine;
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QJSValue object = engine.newObject();
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for (int i = 0; i < propertyNames.size(); ++i) {
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QString name = propertyNames.at(i);
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QString value = propertyValues.at(i);
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pmap.insert(name, value);
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object.setProperty(name, engine.toScriptValue(value));
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}
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QJSValue otherObject = engine.newObject();
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otherObject.setProperty("foo", engine.toScriptValue(123456));
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otherObject.setProperty("protoProperty", engine.toScriptValue(654321));
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object.setPrototype(otherObject); // should not affect iterator
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QStringList lst;
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QJSValueIterator it(object);
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while (!pmap.isEmpty()) {
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QCOMPARE(it.hasNext(), true);
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QCOMPARE(it.hasNext(), true);
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it.next();
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QString name = it.name();
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QCOMPARE(pmap.contains(name), true);
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QCOMPARE(it.name(), name);
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QCOMPARE(it.value().strictlyEquals(engine.toScriptValue(pmap.value(name))), true);
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pmap.remove(name);
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lst.append(name);
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}
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QCOMPARE(it.hasNext(), false);
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QCOMPARE(it.hasNext(), false);
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it = object;
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for (int i = 0; i < lst.size(); ++i) {
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QCOMPARE(it.hasNext(), true);
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it.next();
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QCOMPARE(it.name(), lst.at(i));
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}
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}
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void tst_QJSValueIterator::iterateArray_data()
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{
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QTest::addColumn<QStringList>("propertyNames");
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QTest::addColumn<QStringList>("propertyValues");
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QTest::newRow("no elements") << QStringList() << QStringList();
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QTest::newRow("0=foo, 1=barr")
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<< (QStringList() << "0" << "1")
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<< (QStringList() << "foo" << "bar");
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QTest::newRow("0=foo, 3=barr")
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<< (QStringList() << "0" << "1" << "2" << "3")
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<< (QStringList() << "foo" << "" << "" << "bar");
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}
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void tst_QJSValueIterator::iterateArray()
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{
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QFETCH(QStringList, propertyNames);
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QFETCH(QStringList, propertyValues);
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QJSEngine engine;
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QJSValue array = engine.newArray();
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// Fill the array
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for (int i = 0; i < propertyNames.size(); ++i) {
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array.setProperty(propertyNames.at(i), propertyValues.at(i));
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}
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// Iterate thru array properties. Note that the QJSValueIterator doesn't guarantee
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// any order on the iteration!
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int length = array.property("length").toInt();
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QCOMPARE(length, propertyNames.size());
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bool iteratedThruLength = false;
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QHash<QString, QJSValue> arrayProperties;
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QJSValueIterator it(array);
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// Iterate forward
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while (it.hasNext()) {
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it.next();
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const QString name = it.name();
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if (name == QString::fromLatin1("length")) {
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QVERIFY(it.value().isNumber());
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QCOMPARE(it.value().toInt(), length);
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QVERIFY2(!iteratedThruLength, "'length' appeared more than once during iteration.");
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iteratedThruLength = true;
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continue;
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}
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// Storing the properties we iterate in a hash to compare with test data.
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QVERIFY2(!arrayProperties.contains(name), "property appeared more than once during iteration.");
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arrayProperties.insert(name, it.value());
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QVERIFY(it.value().strictlyEquals(array.property(name)));
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}
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// Verify properties
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QVERIFY(iteratedThruLength);
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QCOMPARE(arrayProperties.size(), propertyNames.size());
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for (int i = 0; i < propertyNames.size(); ++i) {
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QVERIFY(arrayProperties.contains(propertyNames.at(i)));
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QCOMPARE(arrayProperties.value(propertyNames.at(i)).toString(), propertyValues.at(i));
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}
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#if 0
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// Iterate backwards
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arrayProperties.clear();
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iteratedThruLength = false;
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it.toBack();
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while (it.hasPrevious()) {
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it.previous();
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const QString name = it.name();
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if (name == QString::fromLatin1("length")) {
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QVERIFY(it.value().isNumber());
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QCOMPARE(it.value().toInt(), length);
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QCOMPARE(it.flags(), QScriptValue::SkipInEnumeration | QScriptValue::Undeletable);
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QVERIFY2(!iteratedThruLength, "'length' appeared more than once during iteration.");
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iteratedThruLength = true;
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continue;
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}
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// Storing the properties we iterate in a hash to compare with test data.
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QVERIFY2(!arrayProperties.contains(name), "property appeared more than once during iteration.");
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arrayProperties.insert(name, it.value());
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QCOMPARE(it.flags(), array.propertyFlags(name));
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QVERIFY(it.value().strictlyEquals(array.property(name)));
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}
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// Verify properties
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QVERIFY(iteratedThruLength);
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QCOMPARE(arrayProperties.size(), propertyNames.size());
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for (int i = 0; i < propertyNames.size(); ++i) {
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QVERIFY(arrayProperties.contains(propertyNames.at(i)));
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QCOMPARE(arrayProperties.value(propertyNames.at(i)).toString(), propertyValues.at(i));
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}
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// ### Do we still need this test?
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// Forward test again but as object
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arrayProperties.clear();
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iteratedThruLength = false;
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QJSValue arrayObject = engine.toObject(array);
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QJSValueIterator it2(arrayObject);
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while (it2.hasNext()) {
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it2.next();
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const QString name = it2.name();
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if (name == QString::fromLatin1("length")) {
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QVERIFY(it2.value().isNumber());
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QCOMPARE(it2.value().toInt(), length);
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QCOMPARE(it2.flags(), QScriptValue::SkipInEnumeration | QScriptValue::Undeletable);
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QVERIFY2(!iteratedThruLength, "'length' appeared more than once during iteration.");
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iteratedThruLength = true;
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continue;
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}
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// Storing the properties we iterate in a hash to compare with test data.
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QVERIFY2(!arrayProperties.contains(name), "property appeared more than once during iteration.");
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arrayProperties.insert(name, it2.value());
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QCOMPARE(it2.flags(), arrayObject.propertyFlags(name));
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QVERIFY(it2.value().strictlyEquals(arrayObject.property(name)));
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}
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// Verify properties
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QVERIFY(iteratedThruLength);
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QCOMPARE(arrayProperties.size(), propertyNames.size());
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for (int i = 0; i < propertyNames.size(); ++i) {
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QVERIFY(arrayProperties.contains(propertyNames.at(i)));
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QCOMPARE(arrayProperties.value(propertyNames.at(i)).toString(), propertyValues.at(i));
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}
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#endif
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}
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void tst_QJSValueIterator::iterateString()
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{
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QJSEngine engine;
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QJSValue obj = engine.evaluate("new String('ciao')");
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QVERIFY(obj.property("length").isNumber());
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int length = obj.property("length").toInt();
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QCOMPARE(length, 4);
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QJSValueIterator it(obj);
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QHash<QString, QJSValue> stringProperties;
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bool iteratedThruLength = false;
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while (it.hasNext()) {
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it.next();
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const QString name = it.name();
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if (name == QString::fromLatin1("length")) {
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QVERIFY(it.value().isNumber());
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QCOMPARE(it.value().toInt(), length);
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QVERIFY2(!iteratedThruLength, "'length' appeared more than once during iteration.");
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iteratedThruLength = true;
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continue;
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}
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QVERIFY2(!stringProperties.contains(name), "property appeared more than once during iteration.");
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stringProperties.insert(name, it.value());
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QVERIFY(it.value().strictlyEquals(obj.property(name)));
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}
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QVERIFY(iteratedThruLength);
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QCOMPARE(stringProperties.size(), length);
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#if 0
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// And going backwards
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iteratedThruLength = false;
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stringProperties.clear();
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it.toBack();
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while (it.hasPrevious()) {
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it.previous();
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const QString name = it.name();
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if (name == QString::fromLatin1("length")) {
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QVERIFY(it.value().isNumber());
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QCOMPARE(it.value().toInt(), length);
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QVERIFY2(!iteratedThruLength, "'length' appeared more than once during iteration.");
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iteratedThruLength = true;
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continue;
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}
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QVERIFY2(!stringProperties.contains(name), "property appeared more than once during iteration.");
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stringProperties.insert(name, it.value());
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QVERIFY(it.value().strictlyEquals(obj.property(name)));
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}
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#endif
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}
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#if 0 // FIXME what we should to keep from here?
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static QJSValue myGetterSetter(QScriptContext *ctx, QJSEngine *)
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{
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if (ctx->argumentCount() == 1)
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ctx->thisObject().setProperty("bar", ctx->argument(0));
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return ctx->thisObject().property("bar");
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}
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static QJSValue myGetter(QScriptContext *ctx, QJSEngine *)
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{
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return ctx->thisObject().property("bar");
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}
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static QJSValue mySetter(QScriptContext *ctx, QJSEngine *)
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{
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ctx->thisObject().setProperty("bar", ctx->argument(0));
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return ctx->argument(0);
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}
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void tst_QJSValueIterator::iterateGetterSetter()
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{
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// unified getter/setter function
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{
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QJSEngine eng;
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QJSValue obj = eng.newObject();
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obj.setProperty("foo", eng.newFunction(myGetterSetter),
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QScriptValue::PropertyGetter | QScriptValue::PropertySetter);
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QJSValue val(&eng, 123);
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obj.setProperty("foo", val);
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QVERIFY(obj.property("bar").strictlyEquals(val));
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QVERIFY(obj.property("foo").strictlyEquals(val));
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QJSValueIterator it(obj);
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QVERIFY(it.hasNext());
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it.next();
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QCOMPARE(it.name(), QString::fromLatin1("foo"));
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QCOMPARE(it.flags(), QScriptValue::PropertyFlags(QScriptValue::PropertyGetter | QScriptValue::PropertySetter));
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QVERIFY(it.value().strictlyEquals(val));
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QJSValue val2(&eng, 456);
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it.setValue(val2);
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QVERIFY(obj.property("bar").strictlyEquals(val2));
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QVERIFY(obj.property("foo").strictlyEquals(val2));
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QVERIFY(it.hasNext());
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it.next();
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QCOMPARE(it.name(), QString::fromLatin1("bar"));
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QVERIFY(!it.hasNext());
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QVERIFY(it.hasPrevious());
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it.previous();
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QCOMPARE(it.name(), QString::fromLatin1("bar"));
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QVERIFY(it.hasPrevious());
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it.previous();
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QCOMPARE(it.name(), QString::fromLatin1("foo"));
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QCOMPARE(it.flags(), QScriptValue::PropertyFlags(QScriptValue::PropertyGetter | QScriptValue::PropertySetter));
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QVERIFY(it.value().strictlyEquals(val2));
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it.setValue(val);
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QVERIFY(obj.property("bar").strictlyEquals(val));
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QVERIFY(obj.property("foo").strictlyEquals(val));
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}
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// separate getter/setter function
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for (int x = 0; x < 2; ++x) {
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QJSEngine eng;
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QJSValue obj = eng.newObject();
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if (x == 0) {
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obj.setProperty("foo", eng.newFunction(myGetter), QScriptValue::PropertyGetter);
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obj.setProperty("foo", eng.newFunction(mySetter), QScriptValue::PropertySetter);
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} else {
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obj.setProperty("foo", eng.newFunction(mySetter), QScriptValue::PropertySetter);
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obj.setProperty("foo", eng.newFunction(myGetter), QScriptValue::PropertyGetter);
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}
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QJSValue val(&eng, 123);
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obj.setProperty("foo", val);
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QVERIFY(obj.property("bar").strictlyEquals(val));
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QVERIFY(obj.property("foo").strictlyEquals(val));
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QJSValueIterator it(obj);
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QVERIFY(it.hasNext());
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it.next();
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QCOMPARE(it.name(), QString::fromLatin1("foo"));
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QVERIFY(it.value().strictlyEquals(val));
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QJSValue val2(&eng, 456);
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it.setValue(val2);
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QVERIFY(obj.property("bar").strictlyEquals(val2));
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QVERIFY(obj.property("foo").strictlyEquals(val2));
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QVERIFY(it.hasNext());
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it.next();
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QCOMPARE(it.name(), QString::fromLatin1("bar"));
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QVERIFY(!it.hasNext());
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QVERIFY(it.hasPrevious());
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it.previous();
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QCOMPARE(it.name(), QString::fromLatin1("bar"));
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QVERIFY(it.hasPrevious());
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it.previous();
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QCOMPARE(it.name(), QString::fromLatin1("foo"));
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QVERIFY(it.value().strictlyEquals(val2));
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it.setValue(val);
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QVERIFY(obj.property("bar").strictlyEquals(val));
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QVERIFY(obj.property("foo").strictlyEquals(val));
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}
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}
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#endif
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void tst_QJSValueIterator::assignObjectToIterator()
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{
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QJSEngine eng;
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QJSValue obj1 = eng.newObject();
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obj1.setProperty("foo", 123);
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QJSValue obj2 = eng.newObject();
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obj2.setProperty("bar", 456);
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QJSValueIterator it(obj1);
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QVERIFY(it.hasNext());
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it.next();
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it = obj2;
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QVERIFY(it.hasNext());
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it.next();
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QCOMPARE(it.name(), QString::fromLatin1("bar"));
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it = obj1;
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QVERIFY(it.hasNext());
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it.next();
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QCOMPARE(it.name(), QString::fromLatin1("foo"));
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it = obj2;
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QVERIFY(it.hasNext());
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it.next();
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QCOMPARE(it.name(), QString::fromLatin1("bar"));
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it = obj2;
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QVERIFY(it.hasNext());
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it.next();
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QCOMPARE(it.name(), QString::fromLatin1("bar"));
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}
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void tst_QJSValueIterator::iterateNonObject()
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{
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QJSValueIterator it(123);
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QVERIFY(!it.hasNext());
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it.next();
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it.name();
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it.value();
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QJSValue num(5);
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it = num;
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QVERIFY(!it.hasNext());
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}
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void tst_QJSValueIterator::iterateOverObjectFromDeletedEngine()
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{
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QJSEngine *engine = new QJSEngine;
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QJSValue objet = engine->newObject();
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// populate object with properties
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QHash<QString, int> properties;
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properties.insert("foo",1235);
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properties.insert("oof",5321);
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properties.insert("ofo",3521);
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QHash<QString, int>::const_iterator i = properties.constBegin();
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for (; i != properties.constEnd(); ++i) {
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objet.setProperty(i.key(), i.value());
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}
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// start iterating
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QJSValueIterator it(objet);
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it.next();
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QVERIFY(properties.contains(it.name()));
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delete engine;
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QVERIFY(objet.isUndefined());
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QVERIFY(it.name().isEmpty());
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QVERIFY(it.value().isUndefined());
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QVERIFY(!it.hasNext());
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it.next();
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QVERIFY(it.name().isEmpty());
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QVERIFY(it.value().isUndefined());
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}
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void tst_QJSValueIterator::iterateWithNext()
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{
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QJSEngine engine;
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QJSValue value = engine.newObject();
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value.setProperty("one", 1);
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value.setProperty("two", 2);
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value.setProperty("three", 3);
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QStringList list;
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list << QStringLiteral("one") << QStringLiteral("three") << QStringLiteral("two");
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int counter = 0;
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QJSValueIterator it(value);
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QStringList actualList;
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while (it.next()) {
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++counter;
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actualList << it.name();
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}
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std::sort(actualList.begin(), actualList.end());
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QCOMPARE(counter, 3);
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QCOMPARE(list, actualList);
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}
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QTEST_MAIN(tst_QJSValueIterator)
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#include "tst_qjsvalueiterator.moc"
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