I have written this code in junit4.
#Test (expected = AssertionError.class)
public void testMinFail() {
double min = emApp.minSalary(emApp.getEmployees());
assertEquals(40000.0, min, 0);
}
enter code here
I was just wondering how to catch this in junit3.
If you really want to use older JUnit version, you can do something like that:
#Test
public void testMinFail() {
try{
double min = emApp.minSalary(emApp.getEmployees());
}catch (AssertionError ae){
//Do something here
}
assertEquals(40000.0, min, 0);
}
Related
public static IDfCollection getVersions() {
IDfQuery query = clientX.getQuery();// obtain an idfObject
query.setDQL(
"select r_object_id,object_name,r_version_label,owner_name from dm_document(all) where i_chronicle_id='090008868006d5be'");
IDfCollection collection = null;
try {
collection = query.execute(SessionFile.getSession(), IDfQuery.DF_READ_QUERY);
} catch (DfException e) {
e.printStackTrace();
}
return collection;
}
public class Versions {
public static void main(String[] args) {
IDfCollection collection = AllOperations.getVersions();
try {
int versionsCount = collection.getValueCount("r_object_id");
//IDfSysObject dfSysObject=(IDfSysObject) SessionFile.getSession().getObject(new DfId("09000886800a143e"));
while (collection.next()) {
//String versionNum = dfSysObject.getVersionLabels().getImplicitVersionLabel();
int i = 0;
while (i < versionsCount) {
System.out.println(collection.getRepeatingValue("r_version_label", i));
i++;
}
}
} catch (DfException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
Output of the above code is:
1.0,
1.1,
1.2,
CURRENT
in place of "CURRENT" label, I want to "get version number" like 2.0 or 3.0 etc which is latest document version number.
needed output like below :
First of all, this line:
int versionsCount = collection.getValueCount("r_object_id");
should rather be
int versionsCount = collection.getValueCount("r_version_label");
and has to be in the while(collection.next()) loop, this way it will properly iterate over all r_version_label values, so the code will now output:
1.0
1.1
1.2
CURRENT
2.0
you can now get rid of CURRENT (or in general get rid of all non values which can't be parsed to a float number).
IDfDocument doc = (IDfDocument) session.getObject(colDocuments.getId("r_object_id"));
String versionLabel = doc.getAllRepeatingStrings("r_version_label", null);
I have code snippet below.
What I want is if getNames() method catch an exception
( ex. InterruptedException ),
want to check if Got InterruptedException !!! prints out or not.
There are some examples of testing exception for a method
which throws an exception in its method ( ex. String method1() throws InterruptedException {...} ) in the Internet.
But not this case. Does anyone have some thought or idea?
public class A {
public List<String> getNames()
{
String addess = "address1";
int age = 17;
List<String> names = null;
try {
names = getSomeNames(address, sex);
}
catch (InterruptedException | ExecutionException e) {
throw new MyCustomException(e);
}
catch(Exception e) {
throw new MyCustomException(e);
}
return names;
}
List<String> getSomeNames(String address, int sex) throws InterruptedException, ExecutionException
{
// ...
// throw exceptions... at some point
//
return names;
}
}
public class MyCustomException extends Exception {
public MyCustomException(Throwable e) {
if (e.getCause() instanceof InterruptedException) {
// write log
System.out.println("Got InterruptedException !!!");
}
else if (e.getCause() instanceof ExecutionException) {
// write log
System.out.println("Got ExecutionException!!!");
}
else {
// write log
}
}
}
I tried this but the test failed and got NullPointerException in catch block.
#Test
public void testException() {
A objA = spy(new A());
try {
doThrow(MyCustomException.class).when(objA).getNames();
objA.getNnames();
}
catch (Exception e) {
System.out.println(e.getCause().toString()); // ==> throws java.lang.NullPointerException here.
}
}
There are several ways to test it.
First solution is to replace System.out with different stream and read from it later. ( I don't like this approach )
#Test
void whenSayHi_thenPrintlnCalled() throws IOException {
PrintStream normalOutput = System.out;
String result;
try (ByteArrayOutputStream baos = new ByteArrayOutputStream(); PrintStream temporalOutput = new PrintStream(baos)) {
System.setOut(temporalOutput);
ThatGuy thatGuy = new ThatGuy();
thatGuy.sayHi();
result = new String(baos.toByteArray(), StandardCharsets.UTF_8);
} finally {
System.setOut(normalOutput);
}
assertEquals("Hi", result.trim());
}
Second one is to use logger instead of just System.out. I consider this approach better not only from testing, but from code design perspective as well. Using this one you can just replace logger with Mockito.mock and user Mockito.verify to check what was called on your logger.
#Test
void whenSayHi_thenCallLogger() {
Logger logger = Mockito.mock(Logger.class);
ThatGuy thatGuy = new ThatGuy();
ReflectionTestUtils.setField(thatGuy, "logger", logger);
thatGuy.sayHiToLog();
verify(logger).error("Hi");
}
Class under testing looks like this:
class ThatGuy {
private static Logger logger = LoggerFactory.getLogger(ThatGuy.class);
void sayHi() {
System.out.println("Hi");
}
void sayHiToLog() {
logger.error("Hi");
}
}
I have a LWUIT app that should display the number of records in a LWUIT list.
To get all the records I use a method called getRecordData() that returns all records as a String array, it works fine.
But how do I count the number of these records?
import java.util.*;
import com.sun.lwuit.events.*;
import javax.microedition.midlet.*;
import com.sun.lwuit.*;
import com.sun.lwuit.plaf.*;
import javax.microedition.rms.RecordStore;
import javax.microedition.rms .*;
public class number_of_records extends MIDlet {
private RecordStore recordStore;
// Refresh2( ) method for getting the time now
public String Refresh2()
{
java.util.Calendar calendar = java.util.Calendar.getInstance();
Date myDate = new Date();
calendar.setTime(myDate);
StringBuffer time = new StringBuffer();
time.append(calendar.get(java.util.Calendar.HOUR_OF_DAY)).append(':');
time.append(calendar.get(java.util.Calendar.MINUTE)) ;
// time.append(calendar.get(java.util.Calendar.SECOND));
String tt = time.toString();
return tt;
}
// return all records of recordStore RecordStore
public String [] getRecordData( )
{
String[] str = null;
int counter = 0;
try
{
RecordEnumeration enumeration = recordStore.enumerateRecords(null, null, false);
str = new String[recordStore.getNumRecords()];
while(enumeration.hasNextElement())
{
try
{
str[counter] = (new String(enumeration.nextRecord()));
counter ++;
}
catch(javax.microedition.rms.RecordStoreException e)
{
}
}
}
catch(javax.microedition.rms.RecordStoreNotOpenException e)
{
}
catch(java.lang.NullPointerException n)
{
}
return str;
}
public void startApp()
{
com.sun.lwuit.Display.init(this);
final Button addition = new Button("add a goal");
final com.sun.lwuit.TextField tf = new com.sun.lwuit.TextField();
final com.sun.lwuit.List mylist = new com.sun.lwuit.List();
final Button All = new Button("All Goals");
final com.sun.lwuit.Form ff = new com.sun.lwuit.Form();
final com.sun.lwuit.Form g = new com.sun.lwuit.Form();
ff.getStyle().setBgColor(0X99CCFF);
All.getStyle().setBgColor(0X0066CC);
Style g_style5 = g.getSelectedStyle() ;
g.addComponent(tf);
g.addComponent(addition);
addition.getStyle().setBgColor(0X0066CC);
g.addComponent(All);
g.getStyle().setBgColor(0X99CCFF);
addition.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent ae)
{
//
String s =tf.getText();
if( s!=null && s.length() > 0)
{
try
{
// Store the time in the String k
String k = Refresh2();
// The record and the time stored in KK String
String kk =tf.getText()+"-"+k;
// Add an item (the kk String) to mylist List.
mylist.addItem(kk);
byte bytestream[] = kk.getBytes() ;
// Add a record to recordStore.
int i = recordStore.addRecord(bytestream, 0, bytestream.length);
}
catch(Exception ex) { }
// Inform the User that he added the a record.
Dialog validDialog = new Dialog(" ");
Style Dialogstyle = validDialog.getSelectedStyle() ;
validDialog.setScrollable(false);
validDialog.getDialogStyle().setBgColor(0x0066CC);
validDialog.setTimeout(1000); // set timeout milliseconds
TextArea textArea = new TextArea("...."); //pass the alert text here
textArea.setFocusable(false);
textArea.setText("A goal has been added"+"" );
validDialog.addComponent(textArea);
validDialog.show(0, 10, 10, 10, true);
}
// Information to user that he/she didn’t add a record
else if((s==null || s.length()<= 0))
{
Dialog validDialo = new Dialog(" ");
validDialo.setScrollable(false);
validDialo.getDialogStyle().setBgColor(0x0066CC);
validDialo.setTimeout(5000); // set timeout milliseconds
TextArea textArea = new TextArea("...."); //pass the alert text here
textArea.setFocusable(false);
textArea.setText("please enter scorer name or number");
validDialo.addComponent(textArea);
validDialo.show(50, 50, 50, 50, true);
}
}
});
/*Action here for displaying all records of recordStore RecordStore in a new form */
All.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent ae) {
try
{
recordStore = RecordStore.openRecordStore("My Record Store", true);
}
catch(Exception ex) {}
try
{
com.sun.lwuit.Label l = new com.sun.lwuit.Label(" Team Goals") ;
ff.addComponent(l);
// Store the records of recordStore in string array
String [] record= getRecordData();
int j1;
String valueToBeInserted2="";
int k=getRecordData().length;
for( j1=0;j1< getRecordData().length;j1++)
{
valueToBeInserted2=valueToBeInserted2 + " " + record[j1];
if(j1==getRecordData().length)
{
mylist.addItem(record[j1]);
int m = getRecordData().length;
// Counting the number of records
String goals =""+getRecordData().length;
/* I tried to use for…loop to count them by length of the recordStore and render it.
This list also should display the number of records on the form.
But it didn’t !!!
*/
mylist.addItem(goals);
}
}
ff.addComponent(mylist);
}
catch(java.lang.IllegalArgumentException e)
{
}
finally
{
ff.show();
}
}
}
);
g.show();
}
public void pauseApp()
{
}
public void destroyApp(boolean unconditional) {
}
}
I Wrote this code but it gives NullPointerException at recordStore.enumerateRecords (null, null,true);
So I think the problem here.
please help.
myButton.addActionListener( new ActionListener()
{
public void actionPerformed(ActionEvet av)
{
try
{
RecordEnumeration enumeration = recordStore.enumerateRecords (null, null,true);
int o =recordStore.getNumRecords () ;
}
catch(Exception e)
{
}
}
});
what you need is enumeration.numRecords(); i reckon recordStore.getNumRecords() should work also, since this is what you are using the populate the array, you could even use the length of the array itself. These options are all in the code, it would be better to explore a bit more and also check the documentation to resolve trivial problems.
you could use the length of the array or set a RecordListener to your recordstore and increase a counter when added a record to recordstore.
here is the solution of my problem , I do a for loop to get the number of
elements of the array.
the counter should be the length of array
count.addActionListener( new ActionListener()
{
public void actionPerformed(ActionEvent av)
{
try
{
recordStore = RecordStore.openRecordStore("recordStore", true);
}
catch(Exception e)
{ }
try
{
RecordEnumeration enumeration = recordStore.enumerateRecords (null, null,true);
}
catch(Exception e)
{
}
String record[] = getRecordData();
int j;
j = record.length-1;
Dialog validDialog = new Dialog(" ");
Style Dialogstyle = validDialog.getSelectedStyle() ;
validDialog.setScrollable(false);
validDialog.getDialogStyle().setBgColor(0x0066CC);
validDialog.setTimeout(1000); // set timeout milliseconds
TextArea textArea = new TextArea("....");
textArea.setFocusable(false);
textArea.setText("Number Counted"+j );
validDialog.addComponent(textArea);
validDialog.show(0, 10, 10, 10, true);
}});
I am trying to move between 3 forms. 1 is main form and 2 other simple forms.
I have commands in the soft keys but they are not working...
below is my code...
public class checkOutComponents extends MIDlet implements ActionListener
{
private Form appForm;
private Form f1;
private Form f2;
Command GoTof1 = new Command("GoTof1");
Command GoTof2 = new Command("GoTof2");
Command GoToMainForm = new Command("GoToMainForm");
public void startApp()
{
Display.init(this);
appForm = new Form("Check These Components!! ");
appForm.setLayout(new BorderLayout());
appForm.addCommand(GoTof1);
appForm.addCommand(GoTof2);
appForm.addComponent(BorderLayout.CENTER, formContainer);
appForm.show();
}
public void pauseApp()
{
}
public void destroyApp(boolean unconditional)
{
}
public void actionPerformed(ActionEvent event)
{
Command eventCmd = event.getCommand();
Form f = Display.getInstance().getCurrent();
boolean sentido = false;
if (eventCmd == GoTof1)
{
sentido = true;
Image i1 = null;
try
{
i1 = Image.createImage("/hello/1.jpeg");
}
catch (IOException ex)
{
ex.printStackTrace();
}
Label lab1 = new Label(i1);
f1.addComponent(lab1);
f1.addCommand(GoTof2);
f1.addCommand(GoToMainForm);
f.setTransitionOutAnimator(Transition3D.createCube(300, sentido));
f1.show();
}
else if (eventCmd == GoTof2)
{
sentido = false;
Image i2 = null;
try
{
i2 = Image.createImage("/hello/2.jpeg");
}
catch (IOException ex)
{
ex.printStackTrace();
}
Label lab2 = new Label(i2);
f1.addComponent(lab2);
f1.addCommand(GoTof1);
f1.addCommand(GoToMainForm);
f.setTransitionOutAnimator(Transition3D.createCube(300, sentido));
f2.show();
}
else if(eventCmd == GoToMainForm)
{
appForm.showBack();
}
}
}
Kindly help regarding this.
Thanks in advance and regards,
Swati
Add command listener to the form appForm.
appForm.addCommandListener(this);
I'm using JavaFX's Drag and Drop system in my application, and it has been working well so far.
Now I want to support drag and drop to outside applications, eg. dragging files from my application to the explorer. How would I achieve that?
I've achieved what you described by using:
Vector<File> files = new Vector<File>();
private ClipboardContent filesToCopyClipboard = new ClipboardContent();
...
final ObjectWithAReturnablePathField draggableObj = new ObjectWithAReturnablePathField();
...
draggableObj.setOnDragDetected(new EventHandler<MouseEvent>()
{
#Override
public void handle(MouseEvent me)
{
Dragboard db = draggableObj.startDragAndDrop(TransferMode.ANY);
try
{
File f = new File(new URI(draggableObj.getFilePath()));
files.add(f);
filesToCopyClipboard.putFiles(files);
}
catch (URISyntaxException e)
{
e.printStackTrace();
}
db.setContent(filesToCopyClipboard);
me.consume();
}
});
draggableObj.setOnDragDone(new EventHandler<DragEvent>()
{
#Override
public void handle(DragEvent me)
{
me.consume();
}
});
Which means:
It's possible to achieve file transference between JavaFX 2 and a native application by filling a ClipboardContent with a list using the TransferMode.ANY on the setOnDragDetected method of any Draggable Object (Any Node) which can return a Path for a file. In my case, I've created a class called Thumb extending ImageView and (among others things) I made a method called getFilePath() which returns the Path from the Image used to initialize the ImageView(). I'm sorry BTW for the poor example and the poor english, but I'm running out of time to give a more detailed answer as of now. I hope it helps. Cheers
Here is a sample source for an action listener on an ImageView image extraction to OS' explorer (With a custom process for jpg image to remove alpha-channel to display it correctly):
inputImageView.setOnDragDetected(new EventHandler <MouseEvent>() {
#Override
public void handle(MouseEvent event) {
// for paste as file, e.g. in Windows Explorer
try {
Clipboard clipboard Clipboard.getSystemClipboard();
Dragboard db = inputImageView.startDragAndDrop(TransferMode.ANY);
ClipboardContent content = new ClipboardContent();
Image sourceImage = inputImageView.getImage();
ImageInfo imageInfo = (ImageInfo) inputImageView.getUserData();
String name = FilenameUtils.getBaseName(imageInfo.getName());
String ext = FilenameUtils.getExtension(imageInfo.getName());
///Avoid get "prefix lenght too short" error when file name lenght <= 3
if (name.length() < 4){
name = name+Long.toHexString(Double.doubleToLongBits(Math.random()));;
}
File temp = File.createTempFile(name, "."+ext);
if (ext.contentEquals("jpg")|| ext.contentEquals("jpeg")){
BufferedImage image = SwingFXUtils.fromFXImage(sourceImage, null); // Get buffered image.
BufferedImage imageRGB = new BufferedImage(image.getWidth(),image.getHeight(),
BufferedImage.OPAQUE);
Graphics2D graphics = imageRGB.createGraphics();
graphics.drawImage(image, 0, 0, null);
ImageIO.write(imageRGB, ext, temp);
graphics.dispose();
ImageIO.write(imageRGB,
ext, temp);
}else{
ImageIO.write(SwingFXUtils.fromFXImage(sourceImage, null),
ext, temp);
}
content.putFiles(java.util.Collections.singletonList(temp));
db.setContent(content);
clipboard.setContent(content);
event.consume();
temp.deleteOnExit();
} catch (IOException ex) {
System.out.println(ex.getMessage());
}
}
});
With the help of use of an Object that is passed to the imageView's setUserData method, it helps me to retrieve database id and pic name:
public class ImageInfo {
private String imageInfo;
private int inputId;
#Override
public String toString() {
return imageInfo;
}
public ImageInfo(String imageInfo, int inputId) {
this.imageInfo = imageInfo;
this.inputId = inputId;
}
public String getName() {
return imageInfo;
}
public void setName(String imageInfo) {
this.imageInfo = imageInfo;
}
public int getIndex() {
return inputId;
}
public void setIndex(int areaindex) {
this.inputId = inputId;
}
}
I hope it will help somenone at an expected time :-)
Regards