JAVA EXAMPLE PROGRAMS

JAVA EXAMPLE PROGRAMS

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Program: Assertion method Assert.assertNotNull() example.


Java Class: org.junit.Assert

Assert class provides a set of assertion methods useful for writing tests.

Assert.assertNotNull() methods checks that the object is null or not. If it is null then it throws an AssertionError.


package com.java2novice.junit.tests;

import java.util.HashMap;
import java.util.Map;
import static org.junit.Assert.*;
import org.junit.Test;

public class MyAssertNotNullTest {

	public String getPropValue(final String key){
		Map appProps = new HashMap();
		appProps.put("key1", "value 1");
		appProps.put("key2", "value 2");
		appProps.put("key3", "value 3");
		return appProps.get(key);
	}
	
	@Test
	public void test(){
		MyAssertNotNullTest msnt = new MyAssertNotNullTest();
		assertNotNull(msnt.getPropValue("key1"));
	}
}

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Java JUnit Examples

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  7. Assertion method Assert.assertTrue() example.
  8. Assertion method Assert.assertNotNull() example.
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Reference: Java™ Platform Standard Ed. 7 - API Specification | Java is registered trademark of Oracle.
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