TestNG411Sample.java

package test.dataprovider;

import org.testng.Assert;
import org.testng.ITestContext;
import org.testng.annotations.DataProvider;
import org.testng.annotations.Test;

public class TestNG411Sample {

  private static final String CHECK_MAX_DATA = "checkMaxData";
  private static final String CHECK_MIN_DATA = "checkMinData";

  @DataProvider(name = CHECK_MAX_DATA)
  public Object[][] dataProviderCheckMax() {
    return new Object[][]{{1, 2, 3, 3}};
  }

  @Test(description = "Number of parameters to this test don't match the ones passed by data provider",
      dataProvider = CHECK_MAX_DATA)
  public void checkMaxTest(int nr1, int nr2, int expected) {
    Assert.fail("This code shouldn't be executed");
  }

  @DataProvider(name = CHECK_MIN_DATA)
  public Object[][] dataProviderCheckMin() {
    return new Object[][]{{1, 2}};
  }

  @Test(description = "Number of parameters to this test don't match the ones passed by data provider",
      dataProvider = CHECK_MIN_DATA)
  public void checkMinTest(int nr1, int nr2, int expected) {
    Assert.fail("This code shouldn't be executed");
  }

  @Test(description = "Number of parameters to this test don't match the " +
      "ones passed by data provider. But an object will be injected",
      dataProvider = CHECK_MIN_DATA)
  public void checkMinTest_injection(int nr1, int nr2, ITestContext ctx) {
    int result = Math.min(nr1, nr2);
    Assert.assertEquals(result, nr1);
    Assert.assertNotNull(ctx);
  }
}