HashCalculatorTest.java

package com.cse10.duplicateDetector;

import com.cse10.database.DatabaseConstants;
import junit.framework.TestCase;
import org.junit.*;

public class HashCalculatorTest {

    HashCalculator hashCalculator;
    static String previousDB;

    @BeforeClass
    public static void setUpClass() throws Exception {
        previousDB = DatabaseConstants.DB_URL;
        DatabaseConstants.DB_URL = "jdbc:mysql://localhost:3306/newsstats_test";
    }

    @AfterClass
    public static void tearDownClass() throws Exception {
        DatabaseConstants.DB_URL = previousDB;
    }

    @Before
    public void setUp() throws Exception {
        hashCalculator = new HashCalculator();
    }

    @After
    public void tearDown() throws Exception {

    }

    @Test
    public void testGetHash32Value() throws Exception {
        int testValue1 = -1161307140;
        long testValue2 = -2020209788;
        TestCase.assertEquals(testValue1, (hashCalculator.getHash32Value("apple")));
        TestCase.assertEquals(testValue2, (hashCalculator.getHash32Value("colombo")));

    }

    @Test
    public void testGetHash64Value() throws Exception {
        long testValue1 = -5532993126846898198L;
        long testValue2 = -3187130264557305215L;
        TestCase.assertEquals(testValue1, (hashCalculator.getHash64Value("apple")));
        TestCase.assertEquals(testValue2, (hashCalculator.getHash64Value("colombo")));
    }
}