fdo#55814 create unit test for it first

1. create a variable field, name it "foo" and assign value 0
2. create a section, and put content a in it and assign condition
   "foo EQ 1" to it
3. change th value of VAR foo from 0 to 1
4. expected behaviour: section is hidden
   current behaviour: section get corrupted: condition is overwritten with "0"

Change-Id: I52fb50e26f5330c2b4745093ac954cecf45924f5

sw/JunitTest_sw_complex.mk

@@ -39,6 +39,7 @@ $(eval $(call gb_JunitTest_add_sourcefiles,sw_complex,\
     sw/qa/complex/writer/LoadSaveTest \
     sw/qa/complex/writer/TestDocument \
     sw/qa/complex/writer/TextPortionEnumerationTest \
+    sw/qa/complex/writer/VarFields \
 ))
 
 $(eval $(call gb_JunitTest_use_jars,sw_complex,\
@@ -60,6 +61,7 @@ $(eval $(call gb_JunitTest_add_classes,sw_complex,\
     complex.writer.CheckIndexedPropertyValues \
     complex.writer.CheckNamedPropertyValues \
     complex.writer.TextPortionEnumerationTest \
+    complex.writer.VarFields\
 ))
 
 # FIXME has never worked on windows, hashes are different

sw/qa/complex/writer/VarFields.java

+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+package complex.writer;
+
+import com.sun.star.uno.UnoRuntime;
+import com.sun.star.uno.XComponentContext;
+import com.sun.star.lang.XMultiServiceFactory;
+import com.sun.star.lang.XComponent;
+import com.sun.star.lang.XServiceInfo;
+import com.sun.star.beans.XPropertySet;
+import com.sun.star.beans.PropertyValue;
+import com.sun.star.container.XEnumeration;
+import com.sun.star.frame.XStorable;
+import com.sun.star.util.XCloseable;
+import com.sun.star.text.XText;
+import com.sun.star.text.XTextContent;
+import com.sun.star.text.XTextDocument;
+import com.sun.star.text.XTextField;
+import com.sun.star.text.XTextFieldsSupplier;
+import com.sun.star.text.XTextRange;
+import com.sun.star.text.XTextCursor;
+import com.sun.star.text.XTextSection;
+import com.sun.star.text.XParagraphCursor;
+import com.sun.star.text.ControlCharacter;
+import com.sun.star.text.XDependentTextField;
+import org.openoffice.test.OfficeConnection;
+import com.sun.star.text.XWordCursor;
+import org.junit.After;
+import org.junit.AfterClass;
+import org.junit.Before;
+import org.junit.BeforeClass;
+import org.junit.Test;
+import static org.junit.Assert.*;
+
+import java.util.Set;
+import java.util.HashSet;
+import java.io.File;
+import java.net.URI;
+
+
+/**
+ * This is the efforts to create a unit test to reproduce fdo#55814
+ *
+ * To preserve the document, set env var MY_TMP_PATH=file:///tmp/foo and run
+ * make JunitTest_sw_complex, then check /tmp/foo/foo.odt.
+ *
+ * We still have problems programmatically reproduce the original bug fdo#61950:
+ * 1. variable field is not shown
+ *    enter "Enter" and "Remove" or
+ *    toggle Invisible/Visible in writer solve it though =>
+ *    "0" is shown
+ * 2. section is empty
+ * TODO:
+ * a) fill section with some text
+ * b) trigger the value change event of the `foo` var from 0 to 1
+ * c) retrieve the section and check that the condition get corrupted:
+ *    "foo EQ 1" => "0"
+ **/
+
+public class VarFields
+{
+    private static final OfficeConnection connection = new OfficeConnection();
+
+    @BeforeClass public static void setUpConnection() throws Exception {
+        connection.setUp();
+        //Thread.sleep(5000);
+    }
+
+    @AfterClass public static void tearDownConnection()
+        throws InterruptedException, com.sun.star.uno.Exception
+    {
+        connection.tearDown();
+    }
+
+    private XMultiServiceFactory m_xMSF = null;
+    private XComponentContext m_xContext = null;
+    private XTextDocument m_xDoc = null;
+    private String m_TmpDir = null;
+    private String m_FileName = null;
+
+    @Before public void before() throws Exception
+    {
+        m_xMSF = UnoRuntime.queryInterface(
+            XMultiServiceFactory.class,
+            connection.getComponentContext().getServiceManager());
+        m_xContext = connection.getComponentContext();
+        assertNotNull("could not get component context.", m_xContext);
+        m_xDoc = util.WriterTools.createTextDoc(m_xMSF);
+        m_TmpDir = util.utils.getOfficeTemp/*Dir*/(m_xMSF);
+        String myPath = System.getenv("MY_TMP_DIR");
+        if (myPath != null && myPath.length() > 0)
+        {
+            m_TmpDir = myPath;
+            checkTmpDirExists(myPath);
+        }
+        m_FileName = m_TmpDir + File.separator + "foo.odt";
+        System.out.println("file: " + m_FileName);
+    }
+
+    @After public void after()
+    {
+        util.DesktopTools.closeDoc(m_xDoc);
+    }
+
+    void checkTmpDirExists(String target) throws Exception
+    {
+        File f = new File(new URI(target));
+        if (!f.exists()) {
+            if (!f.mkdirs()) {
+                throw new Exception("cannot mkdir: " + target);
+            }
+        }
+    }
+
+    @Test
+    public void test_fdo_55814() throws Exception
+    {
+        XMultiServiceFactory xDocFactory = UnoRuntime.queryInterface(XMultiServiceFactory.class, m_xDoc);
+        XText xBodyText = m_xDoc.getText();
+        XTextCursor xCursor = xBodyText.createTextCursor();
+        // 0. create text field
+        Object xField = xDocFactory.createInstance("com.sun.star.text.textfield.SetExpression");
+        // 1. fill it with properties
+        XPropertySet xPropSet = UnoRuntime.queryInterface(XPropertySet.class, xField);
+        xPropSet.setPropertyValue("Content", "0");
+        xPropSet.setPropertyValue("IsVisible", true);
+        xPropSet.setPropertyValue("Hint", "trying to reproduce fdo#61950");
+        xPropSet.setPropertyValue("SubType", 0);// VAR
+        xPropSet.setPropertyValue("Value", 0.0);
+        xPropSet.setPropertyValue("Content", "0");
+        // 2. create master field
+        Object xMaster = xDocFactory.createInstance("com.sun.star.text.fieldmaster.SetExpression");
+        xPropSet = UnoRuntime.queryInterface(XPropertySet.class, xMaster);
+        // 3. set name of the master field to "foo"
+        xPropSet.setPropertyValue("Name", "foo");
+        // 4. get Dependent Field
+        XDependentTextField xDependentTextField = UnoRuntime.queryInterface(XDependentTextField.class, xField);
+        // 5. connect real field to the master
+        xDependentTextField.attachTextFieldMaster(xPropSet);
+        // 6. insert text field into the document
+
+        // TODO: field is no shown ("0" is expected). UNO bug?
+
+        xBodyText.insertTextContent(xCursor, UnoRuntime.queryInterface(XTextContent.class, xField), false);
+        // 7. retrieve paragraph cursor
+        XParagraphCursor xParagraphCursor = UnoRuntime.queryInterface(XParagraphCursor.class, xCursor);
+        xParagraphCursor.gotoEndOfParagraph(false /*not select*/);
+        // 8. enter new line
+        xBodyText.insertControlCharacter( xCursor, ControlCharacter.PARAGRAPH_BREAK, false );
+        // 9. create new section
+        Object xSection = xDocFactory.createInstance("com.sun.star.text.TextSection");
+        XTextSection xTextSection = UnoRuntime.queryInterface(XTextSection.class, xSection);
+        // 10. fill the properties of section
+        xPropSet = UnoRuntime.queryInterface(XPropertySet.class, xTextSection);
+        xPropSet.setPropertyValue("Condition", "foo EQ 1");
+        xPropSet.setPropertyValue("IsVisible", false);
+        Object readContent = xPropSet.getPropertyValue("Condition");
+        assertEquals("foo EQ 1", readContent);
+        // 11. insert section
+        XTextContent xTextContext = UnoRuntime.queryInterface(XTextContent.class, xSection);
+        xBodyText.insertTextContent(xCursor, xTextContext, true);
+        // 12. tell me what am i missing here? The section is empty.
+        // ???
+        // 12. store document
+        doStore(m_xDoc, m_FileName);
+    }
+
+    private void doStore(XComponent xComp, String file) throws Exception
+    {
+        System.out.println("Storing test document: " + file);
+        XStorable xStor = UnoRuntime.queryInterface(XStorable.class, xComp);
+        xStor.storeToURL(file, new PropertyValue[0]);
+        System.out.println("...done");
+    }
+
+}