forked from opendistro-for-elasticsearch/sql
-
Notifications
You must be signed in to change notification settings - Fork 0
/
ExprNullValueTest.java
66 lines (56 loc) · 2.28 KB
/
ExprNullValueTest.java
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
/*
* Copyright 2019 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License").
* You may not use this file except in compliance with the License.
* A copy of the License is located at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* or in the "license" file accompanying this file. This file is distributed
* on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
* express or implied. See the License for the specific language governing
* permissions and limitations under the License.
*/
package com.amazon.opendistroforelasticsearch.sql.data.model;
import static com.amazon.opendistroforelasticsearch.sql.data.model.ExprValueUtils.LITERAL_FALSE;
import static com.amazon.opendistroforelasticsearch.sql.data.model.ExprValueUtils.LITERAL_NULL;
import static com.amazon.opendistroforelasticsearch.sql.utils.ComparisonUtil.compare;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertNull;
import static org.junit.jupiter.api.Assertions.assertThrows;
import static org.junit.jupiter.api.Assertions.assertTrue;
import com.amazon.opendistroforelasticsearch.sql.data.type.ExprCoreType;
import com.amazon.opendistroforelasticsearch.sql.exception.ExpressionEvaluationException;
import org.junit.jupiter.api.Test;
public class ExprNullValueTest {
@Test
public void test_is_null() {
assertTrue(LITERAL_NULL.isNull());
}
@Test
public void getValue() {
assertNull(LITERAL_NULL.value());
}
@Test
public void getType() {
assertEquals(ExprCoreType.UNDEFINED, LITERAL_NULL.type());
}
@Test
public void toStringTest() {
assertEquals("NULL", LITERAL_NULL.toString());
}
@Test
public void equal() {
assertTrue(LITERAL_NULL.equals(LITERAL_NULL));
assertFalse(LITERAL_FALSE.equals(LITERAL_NULL));
assertFalse(LITERAL_NULL.equals(LITERAL_FALSE));
}
@Test
public void comparabilityTest() {
ExpressionEvaluationException exception = assertThrows(ExpressionEvaluationException.class,
() -> compare(LITERAL_NULL, LITERAL_NULL));
assertEquals("invalid to call compare operation on null value", exception.getMessage());
}
}