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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.document.predicate;
import org.junit.jupiter.api.Test;
import java.util.Arrays;
import static org.junit.jupiter.api.Assertions.*;
/**
* @author Simon Thoresen Hult
*/
public class DisjunctionTest {
@Test
void requireThatDisjunctionIsAnOperator() {
assertTrue(PredicateOperator.class.isAssignableFrom(Disjunction.class));
}
@Test
void requireThatAccessorsWork() {
Disjunction node = new Disjunction();
Predicate a = SimplePredicates.newString("a");
node.addOperand(a);
assertEquals(Arrays.asList(a), node.getOperands());
Predicate b = SimplePredicates.newString("b");
node.addOperand(b);
assertEquals(Arrays.asList(a, b), node.getOperands());
Predicate c = SimplePredicates.newString("c");
Predicate d = SimplePredicates.newString("d");
node.addOperands(Arrays.asList(c, d));
assertEquals(Arrays.asList(a, b, c, d), node.getOperands());
Predicate e = SimplePredicates.newString("e");
Predicate f = SimplePredicates.newString("f");
node.setOperands(Arrays.asList(e, f));
assertEquals(Arrays.asList(e, f), node.getOperands());
}
@Test
void requireThatConstructorsWork() {
Predicate foo = SimplePredicates.newString("foo");
Predicate bar = SimplePredicates.newString("bar");
Disjunction node = new Disjunction(foo, bar);
assertEquals(Arrays.asList(foo, bar), node.getOperands());
node = new Disjunction(Arrays.asList(foo, bar));
assertEquals(Arrays.asList(foo, bar), node.getOperands());
}
@Test
void requireThatCloneIsImplemented() throws CloneNotSupportedException {
Disjunction node1 = new Disjunction(SimplePredicates.newString("a"), SimplePredicates.newString("b"));
Disjunction node2 = node1.clone();
assertEquals(node1, node2);
assertNotSame(node1, node2);
assertNotSame(node1.getOperands(), node2.getOperands());
}
@Test
void requireThatHashCodeIsImplemented() {
assertEquals(new Disjunction().hashCode(), new Disjunction().hashCode());
}
@Test
void requireThatEqualsIsImplemented() {
Disjunction lhs = new Disjunction(SimplePredicates.newString("foo"),
SimplePredicates.newString("bar"));
assertEquals(lhs, lhs);
assertNotEquals(lhs, new Object());
Disjunction rhs = new Disjunction();
assertNotEquals(lhs, rhs);
rhs.addOperand(SimplePredicates.newString("foo"));
assertNotEquals(lhs, rhs);
rhs.addOperand(SimplePredicates.newString("bar"));
assertEquals(lhs, rhs);
}
@Test
void requireThatNodeDelimiterIsOR() {
assertEquals("", newDisjunction().toString());
assertEquals("foo", newDisjunction("foo").toString());
assertEquals("foo or bar", newDisjunction("foo", "bar").toString());
assertEquals("foo or bar or baz", newDisjunction("foo", "bar", "baz").toString());
}
@Test
void requireThatSimpleDisjunctionsArePrettyPrinted() {
assertEquals("foo or bar",
new Disjunction(SimplePredicates.newString("foo"),
SimplePredicates.newString("bar")).toString());
}
@Test
void requireThatComplexDisjunctionsArePrintedAsGroup() {
assertEquals("foo or bar or baz",
new Disjunction(SimplePredicates.newString("foo"),
new Disjunction(SimplePredicates.newString("bar"),
SimplePredicates.newString("baz"))).toString());
assertEquals("foo or (bar and baz)",
new Disjunction(SimplePredicates.newString("foo"),
new Conjunction(SimplePredicates.newString("bar"),
SimplePredicates.newString("baz"))).toString());
}
private static Disjunction newDisjunction(String... operands) {
return new Disjunction(SimplePredicates.newStrings(operands));
}
}
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