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BallerIndustries/BooleanPredicateProcessorTest.java

Created June 13, 2019 16:28
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BooleanPredicateProcessorTest.java
package com.dkc.pp;
import com.dkc.pp.util.Globals;
import org.junit.Before;
import org.junit.Test;
import java.util.HashMap;
import java.util.Map;
import static org.junit.Assert.assertEquals;
public class BooleanPredicateProcessorTest {
private Globals globals = new Globals();
private Map<String, Integer> variables = new HashMap<>();
@Before
public void setUp() throws Exception {
variables.put("friend_count", 100);
variables.put("a", 60);
variables.put("b", 60);
variables.put("c", 60);
variables.put("d", 60);
}
@Test
public void can_process_greater_than_predicate() {
assertEquals(true, globals.processPredicate("friend_count > 40", variables));
assertEquals(false, globals.processPredicate("friend_count > 200", variables));
}
@Test
public void can_process_greater_than_or_equal_to_predicate() {
assertEquals(false, globals.processPredicate("friend_count >= 101", variables));
assertEquals(true, globals.processPredicate("friend_count >= 100", variables));
assertEquals(true, globals.processPredicate("friend_count >= 99", variables));
}
@Test
public void can_process_less_than_predicate() {
assertEquals(true, globals.processPredicate("friend_count < 120", variables));
assertEquals(false, globals.processPredicate("friend_count < 80", variables));
}
@Test
public void can_process_less_than_or_equal_to_predicate() {
assertEquals(true, globals.processPredicate("friend_count <= 101", variables));
assertEquals(true, globals.processPredicate("friend_count <= 100", variables));
assertEquals(false, globals.processPredicate("friend_count <= 99", variables));
}
@Test
public void can_process_equal_to_predicate() {
assertEquals(false, globals.processPredicate("friend_count == 101", variables));
assertEquals(true, globals.processPredicate("friend_count == 100", variables));
assertEquals(false, globals.processPredicate("friend_count == 99", variables));
}
@Test
public void can_process_predicate_with_arithmetic() {
assertEquals(true, globals.processPredicate("a + b + c + d > 200", variables));
assertEquals(false, globals.processPredicate("a + b + c + d > 900", variables));
}
}
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