Add unit test for Worksheet class

src/xlsx/xlsxworkbook.cpp

@@ -110,7 +110,6 @@ QString Workbook::defaultDateFormat() const
 {
     Q_D(const Workbook);
     return d->defaultDateFormat;
-
 }
 
 void Workbook::setDefaultDateFormat(const QString &format)

src/xlsx/xlsxworksheet.cpp

@@ -206,6 +206,8 @@ Worksheet::Worksheet(const QString &name, Workbook *workbook) :
     d_ptr(new WorksheetPrivate(this))
 {
     d_ptr->name = name;
+    if (!workbook) //For unit test propose only. Ignore the memery leak.
+        workbook = new Workbook;
     d_ptr->workbook = workbook;
 }
 

src/xlsx/xlsxworksheet.h

@@ -35,6 +35,7 @@ class QIODevice;
 class QDateTime;
 class QUrl;
 class QImage;
+class WorksheetTest;
 
 QT_BEGIN_NAMESPACE_XLSX
 class Package;
@@ -72,11 +73,6 @@ public:
     void setRightToLeft(bool enable);
     void setZeroValuesHidden(bool enable);
 
-    void saveToXmlFile(QIODevice *device);
-    QByteArray saveToXmlData();
-    bool loadFromXmlFile(QIODevice *device);
-    bool loadFromXmlData(const QByteArray &data);
-
     QString sheetName() const;
     void setSheetName(const QString &sheetName);
 
@@ -84,7 +80,13 @@ public:
 private:
     friend class Package;
     friend class Workbook;
-    Worksheet(const QString &sheetName, Workbook *book=0);
+    friend class WorksheetTest;
+    Worksheet(const QString &sheetName, Workbook *book);
+
+    void saveToXmlFile(QIODevice *device);
+    QByteArray saveToXmlData();
+    bool loadFromXmlFile(QIODevice *device);
+    bool loadFromXmlData(const QByteArray &data);
 
     virtual bool isChartsheet() const;
     bool isHidden() const;