Yet another TestNG parameter testing example, with @DataProvider.
1. CharUtil Class
Let’s say, a class to convert a character to ASCII or vice verse, how can you unit test it with TestNG?
CharUtils.java
package com.mkyong.testng.examples.parameter;
/**
* Character Utility class
*
* @author mkyong
*
*/
public class CharUtils {
/**
* Convert the characters to ASCII value
*
* @param character character
* @return ASCII value
*/
public static int CharToASCII(final char character) {
return (int) character;
}
/**
* Convert the ASCII value to character
*
* @param ascii ascii value
* @return character value
*/
public static char ASCIIToChar(final int ascii) {
return (char) ascii;
}
}
2. TestNG @DataProvider Example
To test it, create a @Test method which accept two parameters (character and expected ASCII), and the test data is passing from data provider.
CharUtilsTest.java
package com.mkyong.testng.examples.parameter;
import org.testng.Assert;
import org.testng.annotations.DataProvider;
import org.testng.annotations.Test;
/**
* Character Utils Testing
* @author mkyong
*
*/
public class CharUtilsTest {
@DataProvider
public Object[][] ValidDataProvider() {
return new Object[][]{
{ 'A', 65 },{ 'a', 97 },
{ 'B', 66 },{ 'b', 98 },
{ 'C', 67 },{ 'c', 99 },
{ 'D', 68 },{ 'd', 100 },
{ 'Z', 90 },{ 'z', 122 },
{ '1', 49 },{ '9', 57 }
};
}
@Test(dataProvider = "ValidDataProvider")
public void CharToASCIITest(final char character, final int ascii) {
int result = CharUtils.CharToASCII(character);
Assert.assertEquals(result, ascii);
}
@Test(dataProvider = "ValidDataProvider")
public void ASCIIToCharTest(final char character, final int ascii) {
char result = CharUtils.ASCIIToChar(ascii);
Assert.assertEquals(result, character);
}
}
Result
PASSED: CharToASCIITest(A, 65)
PASSED: CharToASCIITest(a, 97)
PASSED: CharToASCIITest(B, 66)
PASSED: CharToASCIITest(b, 98)
PASSED: CharToASCIITest(C, 67)
PASSED: CharToASCIITest(c, 99)
PASSED: CharToASCIITest(D, 68)
PASSED: CharToASCIITest(d, 100)
PASSED: CharToASCIITest(Z, 90)
PASSED: CharToASCIITest(z, 122)
PASSED: CharToASCIITest(1, 49)
PASSED: CharToASCIITest(9, 57)
PASSED: ASCIIToCharTest(A, 65)
PASSED: ASCIIToCharTest(a, 97)
PASSED: ASCIIToCharTest(B, 66)
PASSED: ASCIIToCharTest(b, 98)
PASSED: ASCIIToCharTest(C, 67)
PASSED: ASCIIToCharTest(c, 99)
PASSED: ASCIIToCharTest(D, 68)
PASSED: ASCIIToCharTest(d, 100)
PASSED: ASCIIToCharTest(Z, 90)
PASSED: ASCIIToCharTest(z, 122)
PASSED: ASCIIToCharTest(1, 49)
PASSED: ASCIIToCharTest(9, 57)
===============================================
com.mkyong.common.CharUtilsTest
Tests run: 24, Failures: 0, Skips: 0
===============================================
More Parameter Examples.
For more examples, please refer to this TestNG parameter test with XML and DataProvider.
For more examples, please refer to this TestNG parameter test with XML and DataProvider.
Mkyong, thank you for your wonderful tutorials, you are a true modern-day hero!
Thanks MKYong, used the similar approach to create data driven test in Selenium projects like this – http://artoftesting.com/automationTesting/data-driven-framework-in-selenium-using-testng.html
Hi
How can I use @dataprovider with file 10 or say 15 columns.
How can I automate the curl using testNG ??
Hi MKYONG,
It is a great learning.
sometimes these examples work like a boost for us.
just solved a problem using your examples in a very quick.
Thanks,
Vishwa
I think the ValidDataProvider function should look like this. (No name attribute in @DataProvider annotation)
@DataProvider(name="ValidDataProvider") public Object[][] ValidDataProvider() { return new Object[][]{ { 'A', 65 },{ 'a', 97 }, { 'B', 66 },{ 'b', 98 }, { 'C', 67 },{ 'c', 99 }, { 'D', 68 },{ 'd', 100 }, { 'Z', 90 },{ 'z', 122 }, { '1', 49 },{ '9', 57 }, }; }Hi i have some doubts on testng suite running which i am doing keyword driven test using spread sheet,i am using complete modularity in my programs so i created my each test in a class so i can call to my main class,but the problem is each class has dependencies with other class,so how i can call these tests in to my main class for running as suite.
Thanks
Pradeek
http://programnerds.blogspot.com
It’s a nice example.
I found another at http://shyarmal.blogspot.com/2011/07/testng-dataprovider.html.
Nice one
Mkyong, thank you for your wonderful tutorials, you are a true modern-day hero!