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| 1 | +/*- |
| 2 | + * #%L |
| 3 | + * JSQLParser library |
| 4 | + * %% |
| 5 | + * Copyright (C) 2004 - 2026 JSQLParser |
| 6 | + * %% |
| 7 | + * Dual licensed under GNU LGPL 2.1 or Apache License 2.0 |
| 8 | + * #L% |
| 9 | + */ |
| 10 | +package net.sf.jsqlparser.expression; |
| 11 | + |
| 12 | +import static org.assertj.core.api.Assertions.assertThat; |
| 13 | +import static org.junit.jupiter.api.Assertions.*; |
| 14 | + |
| 15 | +import java.util.ArrayList; |
| 16 | +import java.util.List; |
| 17 | +import net.sf.jsqlparser.JSQLParserException; |
| 18 | +import net.sf.jsqlparser.expression.operators.relational.ParenthesedExpressionList; |
| 19 | +import net.sf.jsqlparser.parser.AbstractJSqlParser.Dialect; |
| 20 | +import net.sf.jsqlparser.parser.CCJSqlParserUtil; |
| 21 | +import net.sf.jsqlparser.statement.Statement; |
| 22 | +import net.sf.jsqlparser.statement.select.PlainSelect; |
| 23 | +import net.sf.jsqlparser.util.TablesNamesFinder; |
| 24 | +import net.sf.jsqlparser.util.deparser.ExpressionDeParser; |
| 25 | +import net.sf.jsqlparser.util.deparser.SelectDeParser; |
| 26 | +import net.sf.jsqlparser.util.deparser.StatementDeParser; |
| 27 | +import org.junit.jupiter.api.Test; |
| 28 | +import org.junit.jupiter.params.ParameterizedTest; |
| 29 | +import org.junit.jupiter.params.provider.ValueSource; |
| 30 | + |
| 31 | +class ArrayConstructorTest { |
| 32 | + @ParameterizedTest |
| 33 | + @ValueSource(strings = {"ARRAY['a', (1 + 0)::text]", "ARRAY[(1 + 2), 3]", |
| 34 | + "ARRAY[1, (2 + 3), 4]", "ARRAY[1, ((2 * 3) + 4)]", |
| 35 | + "ARRAY[(SELECT 1), 2]", "ARRAY[NULL, COALESCE(NULL, (2 + 3))]", |
| 36 | + "ARRAY[CASE WHEN 1 < 2 THEN (3 + 4) ELSE 5 END, 6]", |
| 37 | + "ARRAY[ARRAY[(1 + 2), 3], ARRAY[4, (5 + 6)]]", |
| 38 | + "ARRAY[[(1 + 2), 3], [4, (5 + 6)]]", "ARRAY[]::integer[]", |
| 39 | + "ARRAY[ROW(1, 2), ROW(3, 4)]", "ARRAY[(1 < 2), (3 > 4)]"}) |
| 40 | + void parsesGeneralExpressionsAtEveryArrayPosition(String expression) throws Exception { |
| 41 | + for (boolean complex : List.of(false, true)) { |
| 42 | + Statement statement = CCJSqlParserUtil.parse("SELECT " + expression, |
| 43 | + p -> p.withDialect(Dialect.POSTGRESQL).withAllowComplexParsing(complex)); |
| 44 | + roundTrip(statement); |
| 45 | + } |
| 46 | + } |
| 47 | + |
| 48 | + @Test |
| 49 | + void retainsCastAndParenthesesInTheElementAst() throws Exception { |
| 50 | + PlainSelect select = (PlainSelect) parse("SELECT ARRAY['a', (1 + 0)::text]"); |
| 51 | + ArrayConstructor array = assertInstanceOf(ArrayConstructor.class, |
| 52 | + select.getSelectItem(0).getExpression()); |
| 53 | + assertEquals(2, array.getExpressions().size()); |
| 54 | + CastExpression cast = assertInstanceOf(CastExpression.class, array.getExpressions().get(1)); |
| 55 | + assertInstanceOf(ParenthesedExpressionList.class, cast.getLeftExpression()); |
| 56 | + cast.setLeftExpression(new LongValue(42)); |
| 57 | + assertEquals("SELECT ARRAY['a', 42::text]", select.toString()); |
| 58 | + roundTrip(select); |
| 59 | + } |
| 60 | + |
| 61 | + @Test |
| 62 | + void visitsElementsAndFindsTablesInScalarSubqueries() throws Exception { |
| 63 | + Statement statement = parse("SELECT ARRAY[1, (SELECT value FROM hidden), (2 + 3)]"); |
| 64 | + assertThat(new TablesNamesFinder().getTables(statement)).containsExactly("hidden"); |
| 65 | + List<Long> seen = new ArrayList<>(); |
| 66 | + ExpressionDeParser expressions = new ExpressionDeParser() { |
| 67 | + @Override |
| 68 | + public <S> StringBuilder visit(LongValue value, S context) { |
| 69 | + seen.add(value.getValue()); |
| 70 | + return getBuilder().append(value.getValue() + 10); |
| 71 | + } |
| 72 | + }; |
| 73 | + StringBuilder output = new StringBuilder(); |
| 74 | + statement.accept(new StatementDeParser(expressions, new SelectDeParser(), output), null); |
| 75 | + assertEquals(List.of(1L, 2L, 3L), seen); |
| 76 | + assertEquals("SELECT ARRAY[11, (SELECT value FROM hidden), (12 + 13)]", output.toString()); |
| 77 | + roundTrip(parse(output.toString())); |
| 78 | + } |
| 79 | + |
| 80 | + @ParameterizedTest |
| 81 | + @ValueSource(strings = {"SELECT ARRAY[1,]", "SELECT ARRAY[,1]", "SELECT ARRAY[(1 +)]", |
| 82 | + "SELECT ARRAY[1, (2 + 3]", "SELECT ARRAY[[1,2],]"}) |
| 83 | + void rejectsIncompleteElements(String sql) { |
| 84 | + assertThrows(JSQLParserException.class, () -> parse(sql)); |
| 85 | + } |
| 86 | + |
| 87 | + @ParameterizedTest |
| 88 | + @ValueSource(strings = {"SELECT [1, (2 + 3)]", "SELECT [(1 + 2), 3]", |
| 89 | + "SELECT ARRAY<INT64>[1, (2 + 3)]", |
| 90 | + "SELECT ARRAY[1:3]", "SELECT a[(1 + 2)] FROM t", |
| 91 | + "SELECT a.b[1:2].c FROM t", "SELECT ARRAY[ARRAY[], ARRAY[]]"}) |
| 92 | + void preservesExistingArrayAndSubscriptForms(String sql) throws Exception { |
| 93 | + Statement statement = CCJSqlParserUtil.parse(sql); |
| 94 | + StringBuilder output = new StringBuilder(); |
| 95 | + statement.accept(new StatementDeParser(output), null); |
| 96 | + assertEquals(statement.toString(), output.toString()); |
| 97 | + assertEquals(output.toString(), CCJSqlParserUtil.parse(output.toString()).toString()); |
| 98 | + } |
| 99 | + |
| 100 | + private static Statement parse(String sql) throws JSQLParserException { |
| 101 | + return CCJSqlParserUtil.parse(sql, p -> p.withDialect(Dialect.POSTGRESQL)); |
| 102 | + } |
| 103 | + |
| 104 | + private static void roundTrip(Statement statement) throws Exception { |
| 105 | + StringBuilder output = new StringBuilder(); |
| 106 | + statement.accept(new StatementDeParser(output), null); |
| 107 | + assertEquals(statement.toString(), output.toString()); |
| 108 | + assertEquals(output.toString(), parse(output.toString()).toString()); |
| 109 | + } |
| 110 | +} |
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