forked from opendistro-for-elasticsearch/sql
-
Notifications
You must be signed in to change notification settings - Fork 0
/
AstExpressionBuilderTest.java
327 lines (287 loc) · 9.17 KB
/
AstExpressionBuilderTest.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
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
/*
* Copyright 2020 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.sql.parser;
import static com.amazon.opendistroforelasticsearch.sql.ast.dsl.AstDSL.and;
import static com.amazon.opendistroforelasticsearch.sql.ast.dsl.AstDSL.booleanLiteral;
import static com.amazon.opendistroforelasticsearch.sql.ast.dsl.AstDSL.caseWhen;
import static com.amazon.opendistroforelasticsearch.sql.ast.dsl.AstDSL.dateLiteral;
import static com.amazon.opendistroforelasticsearch.sql.ast.dsl.AstDSL.doubleLiteral;
import static com.amazon.opendistroforelasticsearch.sql.ast.dsl.AstDSL.function;
import static com.amazon.opendistroforelasticsearch.sql.ast.dsl.AstDSL.intLiteral;
import static com.amazon.opendistroforelasticsearch.sql.ast.dsl.AstDSL.intervalLiteral;
import static com.amazon.opendistroforelasticsearch.sql.ast.dsl.AstDSL.not;
import static com.amazon.opendistroforelasticsearch.sql.ast.dsl.AstDSL.nullLiteral;
import static com.amazon.opendistroforelasticsearch.sql.ast.dsl.AstDSL.or;
import static com.amazon.opendistroforelasticsearch.sql.ast.dsl.AstDSL.qualifiedName;
import static com.amazon.opendistroforelasticsearch.sql.ast.dsl.AstDSL.stringLiteral;
import static com.amazon.opendistroforelasticsearch.sql.ast.dsl.AstDSL.timeLiteral;
import static com.amazon.opendistroforelasticsearch.sql.ast.dsl.AstDSL.timestampLiteral;
import static com.amazon.opendistroforelasticsearch.sql.ast.dsl.AstDSL.when;
import static com.amazon.opendistroforelasticsearch.sql.ast.dsl.AstDSL.window;
import static org.junit.jupiter.api.Assertions.assertEquals;
import com.amazon.opendistroforelasticsearch.sql.ast.Node;
import com.amazon.opendistroforelasticsearch.sql.ast.expression.DataType;
import com.amazon.opendistroforelasticsearch.sql.common.antlr.CaseInsensitiveCharStream;
import com.amazon.opendistroforelasticsearch.sql.common.antlr.SyntaxAnalysisErrorListener;
import com.amazon.opendistroforelasticsearch.sql.sql.antlr.parser.OpenDistroSQLLexer;
import com.amazon.opendistroforelasticsearch.sql.sql.antlr.parser.OpenDistroSQLParser;
import com.google.common.collect.ImmutableList;
import org.antlr.v4.runtime.CommonTokenStream;
import org.apache.commons.lang3.tuple.ImmutablePair;
import org.junit.jupiter.api.Test;
class AstExpressionBuilderTest {
private final AstExpressionBuilder astExprBuilder = new AstExpressionBuilder();
@Test
public void canBuildStringLiteral() {
assertEquals(
stringLiteral("hello"),
buildExprAst("'hello'")
);
}
@Test
public void canBuildIntegerLiteral() {
assertEquals(
intLiteral(123),
buildExprAst("123")
);
}
@Test
public void canBuildNegativeRealLiteral() {
assertEquals(
doubleLiteral(-4.567),
buildExprAst("-4.567")
);
}
@Test
public void canBuildBooleanLiteral() {
assertEquals(
booleanLiteral(true),
buildExprAst("true")
);
}
@Test
public void canBuildDateLiteral() {
assertEquals(
dateLiteral("2020-07-07"),
buildExprAst("DATE '2020-07-07'")
);
}
@Test
public void canBuildTimeLiteral() {
assertEquals(
timeLiteral("11:30:45"),
buildExprAst("TIME '11:30:45'")
);
}
@Test
public void canBuildTimestampLiteral() {
assertEquals(
timestampLiteral("2020-07-07 11:30:45"),
buildExprAst("TIMESTAMP '2020-07-07 11:30:45'")
);
}
@Test
public void canBuildIntervalLiteral() {
assertEquals(
intervalLiteral(1, DataType.INTEGER, "day"),
buildExprAst("interval 1 day")
);
}
@Test
public void canBuildArithmeticExpression() {
assertEquals(
function("+", intLiteral(1), intLiteral(2)),
buildExprAst("1 + 2")
);
}
@Test
public void canBuildFunctionWithoutArguments() {
assertEquals(
function("PI"),
buildExprAst("PI()")
);
}
@Test
public void canBuildExpressionWithParentheses() {
assertEquals(
function("*",
function("+", doubleLiteral(-1.0), doubleLiteral(2.3)),
function("-", intLiteral(3), intLiteral(1))
),
buildExprAst("(-1.0 + 2.3) * (3 - 1)")
);
}
@Test
public void canBuildFunctionCall() {
assertEquals(
function("abs", intLiteral(-1)),
buildExprAst("abs(-1)")
);
}
@Test
public void canBuildNestedFunctionCall() {
assertEquals(
function("abs",
function("*",
function("abs", intLiteral(-5)),
intLiteral(-1)
)
),
buildExprAst("abs(abs(-5) * -1)")
);
}
@Test
public void canBuildDateAndTimeFunctionCall() {
assertEquals(
function("dayofmonth", dateLiteral("2020-07-07")),
buildExprAst("dayofmonth(DATE '2020-07-07')")
);
}
@Test
public void canBuildComparisonExpression() {
assertEquals(
function("!=", intLiteral(1), intLiteral(2)),
buildExprAst("1 != 2")
);
assertEquals(
function("!=", intLiteral(1), intLiteral(2)),
buildExprAst("1 <> 2")
);
}
@Test
public void canBuildNullTestExpression() {
assertEquals(
function("is null", intLiteral(1)),
buildExprAst("1 is NULL")
);
assertEquals(
function("is not null", intLiteral(1)),
buildExprAst("1 IS NOT null")
);
}
@Test
public void canBuildNullTestExpressionWithNULLLiteral() {
assertEquals(
function("is null", nullLiteral()),
buildExprAst("NULL is NULL")
);
assertEquals(
function("is not null", nullLiteral()),
buildExprAst("NULL IS NOT null")
);
}
@Test
public void canBuildLikeExpression() {
assertEquals(
function("like", stringLiteral("str"), stringLiteral("st%")),
buildExprAst("'str' like 'st%'")
);
assertEquals(
function("not like", stringLiteral("str"), stringLiteral("st%")),
buildExprAst("'str' not like 'st%'")
);
}
@Test
public void canBuildRegexpExpression() {
assertEquals(
function("regexp", stringLiteral("str"), stringLiteral(".*")),
buildExprAst("'str' regexp '.*'")
);
}
@Test
public void canBuildLogicalExpression() {
assertEquals(
and(booleanLiteral(true), booleanLiteral(false)),
buildExprAst("true AND false")
);
assertEquals(
or(booleanLiteral(true), booleanLiteral(false)),
buildExprAst("true OR false")
);
assertEquals(
not(booleanLiteral(false)),
buildExprAst("NOT false")
);
}
@Test
public void canBuildWindowFunction() {
assertEquals(
window(
function("RANK"),
ImmutableList.of(qualifiedName("state")),
ImmutableList.of(ImmutablePair.of("ASC", qualifiedName("age")))),
buildExprAst("RANK() OVER (PARTITION BY state ORDER BY age)"));
}
@Test
public void canBuildWindowFunctionWithoutPartitionBy() {
assertEquals(
window(
function("DENSE_RANK"),
ImmutableList.of(),
ImmutableList.of(ImmutablePair.of("DESC", qualifiedName("age")))),
buildExprAst("DENSE_RANK() OVER (ORDER BY age DESC)"));
}
@Test
public void canBuildWindowFunctionWithoutOrderBy() {
assertEquals(
window(
function("RANK"),
ImmutableList.of(qualifiedName("state")),
ImmutableList.of()),
buildExprAst("RANK() OVER (PARTITION BY state)"));
}
@Test
public void canBuildCaseConditionStatement() {
assertEquals(
caseWhen(
null, // no else statement
when(
function(">", qualifiedName("age"), intLiteral(30)),
stringLiteral("age1"))),
buildExprAst("CASE WHEN age > 30 THEN 'age1' END")
);
}
@Test
public void canBuildCaseValueStatement() {
assertEquals(
caseWhen(
qualifiedName("age"),
stringLiteral("age2"),
when(intLiteral(30), stringLiteral("age1"))),
buildExprAst("CASE age WHEN 30 THEN 'age1' ELSE 'age2' END")
);
}
@Test
public void canBuildKeywordsAsIdentifiers() {
assertEquals(
qualifiedName("timestamp"),
buildExprAst("timestamp")
);
}
@Test
public void canBuildKeywordsAsIdentInQualifiedName() {
assertEquals(
qualifiedName("test", "timestamp"),
buildExprAst("test.timestamp")
);
}
private Node buildExprAst(String expr) {
OpenDistroSQLLexer lexer = new OpenDistroSQLLexer(new CaseInsensitiveCharStream(expr));
OpenDistroSQLParser parser = new OpenDistroSQLParser(new CommonTokenStream(lexer));
parser.addErrorListener(new SyntaxAnalysisErrorListener());
return parser.expression().accept(astExprBuilder);
}
}