1 package io.github.reggert.reb4j;
2
3 import static org.hamcrest.CoreMatchers.is;
4 import static org.junit.Assert.assertThat;
5
6 import io.github.reggert.reb4j.Entity;
7 import io.github.reggert.reb4j.Expression;
8 import io.github.reggert.reb4j.Literal;
9 import io.github.reggert.reb4j.StringLiteral;
10
11 import java.util.HashSet;
12
13 import org.junit.Test;
14
15
16 public class StringLiteralTest
17 {
18
19 @Test
20 public void testHashCodeAndEquals()
21 {
22 final StringLiteral literal1 = Literal.literal("abc");
23 final StringLiteral literal2 = Literal.literal("abc");
24 final StringLiteral literal3 = Literal.literal("123");
25 final StringLiteral literal4 = Literal.literal("xyz");
26 final HashSet<Expression> set = new HashSet<Expression>();
27 set.add(literal1);
28 set.add(literal3);
29 assertThat(set.size(), is(2));
30 assertThat(set.contains(literal1), is(true));
31 assertThat(set.contains(literal2), is(true));
32 assertThat(set.contains(literal3), is(true));
33 assertThat(set.contains(literal4), is(false));
34 assertThat(literal1.equals(literal1), is(true));
35 assertThat(literal1.equals(null), is(false));
36 assertThat(literal1.equals(Entity.ANY_CHAR), is(false));
37 }
38
39 }