Collection of useful JUnit methods for day by day testing
This collection of JUnit methods helps developers to check data and to create robust Java applications (and Unit tests).
Methods
| assertEquals() |
Uses the equals() method to verify that objects are identical |
| assertTrue() |
Checks if the condition is true. |
| assertFalse() |
Checks if the condition is false. |
| assertNull() |
Checks if the object is null |
| assertNotNull() |
Checks if the object is not null. |
| assertNotEquals() |
Uses the equals() method to verify that objects are not identical |
| assertArrayEquals() |
Checks if two arrays contain the same objects in the same order. |
| assertSame() |
Uses == to verify that objects are the same |
| assertNotSame() |
Uses == to verify that objects are not the same. |
| assertThat() |
An entry point to the matchers-based assertions which we will discuss in Section 6.6. |
Examples
| @Test @Parameters(method = "nbOfGamesWon") |
| @Parameters(method = "nbOfGamesWon") |
| @Test(expected = IllegalArgumentException.class) |
@Test
public void testYYMMDDtoMMDDYY(){
assertEquals("020115", DateUtils.convertDate("150201", DateUtils.FORMATS.YYMMDD, DateUtils.FORMATS.MMDDYY));
}
@Test(expected = IllegalArgumentException.class)
public void checkEmailError() {InputValidator.checkEmail("transport.mail.com");}
Import
import org.junit.Before;
import org.junit.Test;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotEquals;
Pom file
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<scope>test</scope>
<dependency>
