Not able to access Xml file when code is executed using Junit

Question

I am working on "robotium with junit". I have come across the situation where, my code is not able to find the Xml file on the given path.(Provided that the specified path is correct).

If I run the same code(file reading) with normal java then its working fine.

But when i run the code with junit, code cannot find the specified Xml file.

Here is my code: Refer public void test_insert();

import java.io.File;
import java.io.IOException;



import com.robotium.solo.Solo;
import com.rohit.databse_crud.DbReader;
import com.rohit.databse_crud.insert_act;

import android.test.ActivityInstrumentationTestCase2;
import android.util.Log;

@SuppressWarnings("unchecked")
public class InitialButtonTest extends ActivityInstrumentationTestCase2 {

private static final String LAUNCHER_ACTIVITY_FULL_CLASSNAME = "com.xyz.dat.SplashActivity";
private static Class launcherActivityClass;
static {

    try {
        launcherActivityClass = Class
                .forName(LAUNCHER_ACTIVITY_FULL_CLASSNAME);
    } catch (ClassNotFoundException e) {
        throw new RuntimeException(e);
    }
}

public InitialButtonTest() throws ClassNotFoundException {
    super(launcherActivityClass);
}

private Solo solo;

@Override
protected void setUp() throws Exception {
    solo = new Solo(getInstrumentation(), getActivity());
}

public void test_insert()
{
    String name="C:/Users/Marathe/x.xml";
    File xmll=new File(name);
    if(xmll.exists())
    {
        System.out.println("file found");
    }
    else
    {
        System.out.println("file not found");
    }
}

Here is the simple Java code which works fine for me:

import java.io.File;
public class TestFile {

/**
 * @param args
 */
public static void main(String[] args) {
    // TODO Auto-generated method stub

    String name="C:/Users/Marathe/x.xml";
    File xmll=new File(name);
    if(xmll.exists())
    {
        System.out.println("file found");
    }
    else
    System.out.println("file not found");
  }

} 

O/P : file found

Though i am having the xml file with me on the specified path, I am getting "file not found" message from else.

Is there any other way in junit, to access the file ?

Please help me to solve this issue. Where exaclty i am going wrong ?

Thanks in advance.

A few things to try out: misspelled path, capital letters in path where they shouldn't, or even special characters not escaped (such '/'). — germanio
– germanio, Commented Apr 27, 2015 at 1:30
something else: try moving the file to the root folder (c:/) and change the path in the unit test accordingly to see if it is read. — germanio
– germanio, Commented Apr 27, 2015 at 1:31
one more thing I'm thinking of: try to run the lines to read the xml from a brand new unit test that does not extend ActivityInstrumentationTestCase2, just a simple JUnit test, to see what happens if you discard all possible influence from the father test. — germanio
– germanio, Commented Apr 27, 2015 at 1:37
Thanks germanio, i tried all possible solutions u suggested but i could not able to access the xml file. Actually, i am little bit surprised that the file is accessible from normal java code but when we use junit, file is no more accessible. I also tried google solutions, but i found those are not adequate. So any other solution u could suggest ? — Rohhit
– Rohhit, Commented Apr 28, 2015 at 4:34
it looks very similar to this question: stackoverflow.com/questions/18676235/… please take a look and see if that helps you — germanio
– germanio, Commented Apr 29, 2015 at 21:10

brwngrldev · Accepted Answer · 2015-05-04 19:49:26Z

1

I store the sample data that I want to use in my tests in the res/raw folder. Then I can read the data in my tests with the following:

private String getFileData() throws Exception {
        Writer writer = new StringWriter();
        InputStream is = null;
        try {
            is = getInstrumentation().getTargetContext().getResources().openRawResource(R.raw.sample_data);
            Reader reader = new BufferedReader(new InputStreamReader(is, "UTF-8"));
            int n;
            char[] buffer = new char[1024];
            while ((n = reader.read(buffer)) != -1) {
                writer.write(buffer, 0, n);
            }
        } finally {
            if (is != null) {
                is.close();
            }
        }

        return writer.toString();
    }

answered May 4, 2015 at 19:49

brwngrldev

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2 Comments

Rohhit Over a year ago

Thanks adavis..I have one query.. "How and In which format u save the test data in res/raw (xml or txt) ? "

brwngrldev Over a year ago

I store my data as JSON and then parse it with Gson, but you can store it in whatever format works best for you.

Rohhit · Accepted Answer · 2015-05-25 08:48:24Z

1

Finally after long time, i got the solution for this and it worked for me:

What i did ? Yup, i did like this:

1) First I put my .xml file into src/test/resources

2) Then I wrote this code for accessing xml file :

    DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
    DocumentBuilder db = dbf.newDocumentBuilder();
    Document doc = db.parse(Thread.currentThread().getContextClassLoader().getResourceAsStream("test/resources/x.xml"));

And after executing it using Junit, I could access the file.

answered May 25, 2015 at 8:48

Rohhit

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