Remove Q_ASSERT's from QScriptable autotest

The helper class expects a valid script engine to be available and
attempted to verify this with Q_ASSERT (which does nothing in release
mode) and QVERIFY (which should only be used directly in test
functions).  This commit makes the helper class avoid using an invalid
engine and catches the problem later by verifying that the last script
engine used by the scriptable class was valid.

Change-Id: I849df32b141b7801b9b5a92f44ff325397e32f2d
Task-number: QTBUG-17582
Reviewed-by: Rohan McGovern
(cherry picked from commit a7acd7e0a09d89647abb9ff91b1bcb55d1a7a849)

1 files changed, 21 insertions, 6 deletions

diff --git a/tests/auto/qscriptable/tst_qscriptable.cpp b/tests/auto/qscriptable/tst_qscriptable.cpp
index f5d36ea..97af050 100644
--- a/tests/auto/qscriptable/tst_qscriptable.cpp
+++ b/tests/auto/qscriptable/tst_qscriptable.cpp
@@ -137,8 +137,8 @@ int MyScriptable::getArgumentCount()
 void MyScriptable::foo()
 {
     m_lastEngine = engine();
-    QVERIFY(engine() != 0);
-    context()->throwError("MyScriptable.foo");
+    if (engine())
+        context()->throwError("MyScriptable.foo");
 }
 
 void MyScriptable::evalIsBar()
@@ -164,15 +164,15 @@ void MyScriptable::setOtherEngine()
 void MyScriptable::setX(int x)
 {
     m_lastEngine = engine();
-    Q_ASSERT(engine());
-    thisObject().setProperty("x", QScriptValue(engine(), x));
+    if (engine())
+        thisObject().setProperty("x", QScriptValue(engine(), x));
 }
 
 void MyScriptable::setX(const QString &x)
 {
     m_lastEngine = engine();
-    Q_ASSERT(engine());
-    thisObject().setProperty("x", QScriptValue(engine(), x));
+    if (engine())
+        thisObject().setProperty("x", QScriptValue(engine(), x));
 }
 
 void MyScriptable::setX2(int)
@@ -291,6 +291,7 @@ void tst_QScriptable::thisObject()
                                              "o.setX(123);"
                                              "o.__proto__ = Object.prototype;"
                                              "o.x");
+        QCOMPARE(m_scriptable.lastEngine(), &m_engine);
         QCOMPARE(ret.strictlyEquals(QScriptValue(&m_engine, 123)), true);
     }
     {
@@ -298,46 +299,55 @@ void tst_QScriptable::thisObject()
                                              "o.setX2(456);"
                                              "o.__proto__ = Object.prototype;"
                                              "o.x");
+        QCOMPARE(m_scriptable.lastEngine(), &m_engine);
         QCOMPARE(ret.strictlyEquals(QScriptValue(&m_engine, 456)), true);
     }
     m_engine.evaluate("o.__proto__ = scriptable");
     {
         QScriptValue ret = m_engine.evaluate("o.isBar()");
+        QCOMPARE(m_scriptable.lastEngine(), &m_engine);
         QCOMPARE(ret.strictlyEquals(QScriptValue(&m_engine, false)), true);
     }
     {
         QScriptValue ret = m_engine.evaluate("o.toString = function() { return 'foo@bar'; }; o.isBar()");
+        QCOMPARE(m_scriptable.lastEngine(), &m_engine);
         QCOMPARE(ret.strictlyEquals(QScriptValue(&m_engine, true)), true);
     }
 
     // property getter
     {
         QScriptValue ret = m_engine.evaluate("scriptable.zab");
+        QCOMPARE(m_scriptable.lastEngine(), &m_engine);
         QCOMPARE(ret.isQObject(), true);
         QCOMPARE(ret.toQObject(), (QObject *)&m_scriptable);
     }
     {
         QScriptValue ret = m_engine.evaluate("scriptable[1]");
+        QCOMPARE(m_scriptable.lastEngine(), &m_engine);
         QCOMPARE(ret.isQObject(), true);
         QCOMPARE(ret.toQObject(), (QObject *)&m_scriptable);
     }
     {
         QScriptValue ret = m_engine.evaluate("o.zab");
+        QCOMPARE(m_scriptable.lastEngine(), &m_engine);
         QCOMPARE(ret.toQObject(), (QObject *)0);
     }
     // property setter
     {
         QScriptValue ret = m_engine.evaluate("scriptable.setZab(null)");
+        QCOMPARE(m_scriptable.lastEngine(), &m_engine);
         QCOMPARE(ret.isQObject(), true);
         QCOMPARE(ret.toQObject(), (QObject *)&m_scriptable);
     }
     {
         QVERIFY(!m_scriptable.oofThisObject().isValid());
         m_engine.evaluate("o.oof = 123");
+        QCOMPARE(m_scriptable.lastEngine(), &m_engine);
         QVERIFY(m_scriptable.oofThisObject().strictlyEquals(m_engine.evaluate("o")));
     }
     {
         m_engine.evaluate("scriptable.oof = 123");
+        QCOMPARE(m_scriptable.lastEngine(), &m_engine);
         QVERIFY(m_scriptable.oofThisObject().strictlyEquals(m_engine.evaluate("scriptable")));
     }
 
@@ -345,13 +355,17 @@ void tst_QScriptable::thisObject()
     {
         {
             QScriptValue ret = m_engine.evaluate("scriptable.sig.connect(o, scriptable.setX)");
+            QCOMPARE(m_scriptable.lastEngine(), &m_engine);
             QVERIFY(ret.isUndefined());
         }
         QVERIFY(m_engine.evaluate("o.x").strictlyEquals(QScriptValue(&m_engine, 456)));
+        QCOMPARE(m_scriptable.lastEngine(), &m_engine);
         m_scriptable.emitSig(654321);
         QVERIFY(m_engine.evaluate("o.x").strictlyEquals(QScriptValue(&m_engine, 654321)));
+        QCOMPARE(m_scriptable.lastEngine(), &m_engine);
         {
             QScriptValue ret = m_engine.evaluate("scriptable.sig.disconnect(o, scriptable.setX)");
+            QCOMPARE(m_scriptable.lastEngine(), &m_engine);
             QVERIFY(ret.isUndefined());
         }
     }
@@ -383,6 +397,7 @@ void tst_QScriptable::arguments()
 void tst_QScriptable::throwError()
 {
     QScriptValue ret = m_engine.evaluate("scriptable.foo()");
+    QCOMPARE(m_scriptable.lastEngine(), &m_engine);
     QCOMPARE(ret.isError(), true);
     QCOMPARE(ret.toString(), QString("Error: MyScriptable.foo"));
 }