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| 1 | +/*- |
| 2 | + * #%L |
| 3 | + * JSQLParser library |
| 4 | + * %% |
| 5 | + * Copyright (C) 2004 - 2019 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.junit.jupiter.api.Assertions.assertEquals; |
| 13 | +import static org.junit.jupiter.api.Assertions.assertInstanceOf; |
| 14 | +import static org.junit.jupiter.api.Assertions.assertThrows; |
| 15 | +import java.io.StringReader; |
| 16 | +import java.nio.charset.StandardCharsets; |
| 17 | +import java.util.List; |
| 18 | +import java.util.stream.Stream; |
| 19 | +import net.sf.jsqlparser.JSQLParserException; |
| 20 | +import net.sf.jsqlparser.parser.CCJSqlParser; |
| 21 | +import net.sf.jsqlparser.parser.CCJSqlParserConstants; |
| 22 | +import net.sf.jsqlparser.parser.CCJSqlParserUtil; |
| 23 | +import net.sf.jsqlparser.parser.Token; |
| 24 | +import net.sf.jsqlparser.schema.Column; |
| 25 | +import net.sf.jsqlparser.statement.Statements; |
| 26 | +import net.sf.jsqlparser.statement.select.PlainSelect; |
| 27 | +import net.sf.jsqlparser.test.TestUtils; |
| 28 | +import net.sf.jsqlparser.util.deparser.StatementDeParser; |
| 29 | +import org.junit.jupiter.api.Test; |
| 30 | +import org.junit.jupiter.api.Timeout; |
| 31 | +import org.junit.jupiter.params.ParameterizedTest; |
| 32 | +import org.junit.jupiter.params.provider.MethodSource; |
| 33 | +import org.junit.jupiter.params.provider.ValueSource; |
| 34 | + |
| 35 | +class TaggedDollarStringTest { |
| 36 | + static Stream<String> tags() { |
| 37 | + return Stream.of("", "tag", "Tag_123", "_", "한글", "étiquette"); |
| 38 | + } |
| 39 | + |
| 40 | + @ParameterizedTest |
| 41 | + @MethodSource("tags") |
| 42 | + void preservesLiteralBodiesAndDelimiters(String tag) throws Exception { |
| 43 | + String delimiter = "$" + tag + "$"; |
| 44 | + for (String body : List.of("", "abc", "a\nb\r\nc\t ", "x 'one' ''two'' \\ end", |
| 45 | + "/* comment */ -- more\n#hash", "[ {\"some\":\"json\",\"with\":\"properties$\"} ]", |
| 46 | + "$1 $other$ こんにちは")) { |
| 47 | + String literal = delimiter + body + delimiter; |
| 48 | + String sql = "SELECT " + literal + " AS value, 2 FROM t"; |
| 49 | + PlainSelect select = (PlainSelect) TestUtils.assertSqlCanBeParsedAndDeparsed(sql); |
| 50 | + StringValue value = |
| 51 | + assertInstanceOf(StringValue.class, select.getSelectItem(0).getExpression()); |
| 52 | + assertEquals(body, value.getValue()); |
| 53 | + assertEquals(body, value.getNotExcapedValue()); |
| 54 | + assertEquals(delimiter, value.getQuoteStr()); |
| 55 | + assertEquals(literal, value.toString()); |
| 56 | + StringBuilder builder = new StringBuilder(); |
| 57 | + select.accept(new StatementDeParser(builder), null); |
| 58 | + PlainSelect again = (PlainSelect) CCJSqlParserUtil.parse(builder.toString()); |
| 59 | + assertEquals(body, again.getSelectItem(0).getExpression(StringValue.class).getValue()); |
| 60 | + assertEquals(select.toString(), builder.toString()); |
| 61 | + } |
| 62 | + } |
| 63 | + |
| 64 | + @Test |
| 65 | + void keepsDifferentTagsAndDollarSignsInsideBody() throws Exception { |
| 66 | + String body = "$other$ text $Tag$ $$ $1 $t"; |
| 67 | + PlainSelect select = |
| 68 | + (PlainSelect) CCJSqlParserUtil.parse("SELECT $tag$" + body + "$tag$::text, $1"); |
| 69 | + CastExpression cast = select.getSelectItem(0).getExpression(CastExpression.class); |
| 70 | + assertEquals(body, ((StringValue) cast.getLeftExpression()).getValue()); |
| 71 | + assertInstanceOf(JdbcParameter.class, select.getSelectItem(1).getExpression()); |
| 72 | + } |
| 73 | + |
| 74 | + @Test |
| 75 | + void retainsIdentifiersAndSupportsOptOut() throws Exception { |
| 76 | + PlainSelect select = (PlainSelect) CCJSqlParserUtil |
| 77 | + .parse("SELECT $parameter, foo$bar, \"$tag$abc$tag$\", $1 FROM t"); |
| 78 | + for (int i = 0; i < 3; i++) { |
| 79 | + assertInstanceOf(Column.class, select.getSelectItem(i).getExpression()); |
| 80 | + } |
| 81 | + assertInstanceOf(JdbcParameter.class, select.getSelectItem(3).getExpression()); |
| 82 | + for (String identifier : List.of("$tag$abc$tag$", "$tag$identifier")) { |
| 83 | + PlainSelect legacy = (PlainSelect) CCJSqlParserUtil.parse("SELECT " + identifier, |
| 84 | + parser -> parser.withDollarQuotedStringTags(false)); |
| 85 | + assertEquals(identifier, |
| 86 | + legacy.getSelectItem(0).getExpression(Column.class).getColumnName()); |
| 87 | + } |
| 88 | + PlainSelect untagged = (PlainSelect) CCJSqlParserUtil.parse("SELECT $$text$$", |
| 89 | + parser -> parser.withDollarQuotedStringTags(false)); |
| 90 | + assertEquals("text", untagged.getSelectItem(0).getExpression(StringValue.class).getValue()); |
| 91 | + } |
| 92 | + |
| 93 | + @Test |
| 94 | + void retainsBodyWithOtherLexerOptions() throws Exception { |
| 95 | + PlainSelect select = (PlainSelect) CCJSqlParserUtil.parse( |
| 96 | + "SELECT $t$#hash\n\\text't$tag$ \"q\"$t$", |
| 97 | + parser -> parser |
| 98 | + .withDialect(net.sf.jsqlparser.parser.AbstractJSqlParser.Dialect.MYSQL)); |
| 99 | + assertEquals("#hash\n\\text't$tag$ \"q\"", |
| 100 | + select.getSelectItem(0).getExpression(StringValue.class).getValue()); |
| 101 | + } |
| 102 | + |
| 103 | + @Test |
| 104 | + void keepsLineColumnAndAbsoluteTokenPositions() { |
| 105 | + String literal = "$tag$a\nb$tag$"; |
| 106 | + CCJSqlParser parser = CCJSqlParserUtil.newParser("SELECT " + literal + ", 2"); |
| 107 | + parser.getNextToken(); |
| 108 | + Token value = parser.getNextToken(); |
| 109 | + Token comma = parser.getNextToken(); |
| 110 | + assertEquals(CCJSqlParserConstants.S_CHAR_LITERAL, value.kind); |
| 111 | + assertEquals(literal, value.image); |
| 112 | + assertEquals(1, value.beginLine); |
| 113 | + assertEquals(8, value.beginColumn); |
| 114 | + assertEquals(2, value.endLine); |
| 115 | + assertEquals(6, value.endColumn); |
| 116 | + assertEquals(8, value.absoluteBegin); |
| 117 | + assertEquals(8 + literal.length(), value.absoluteEnd); |
| 118 | + assertEquals(value.absoluteEnd, comma.absoluteBegin); |
| 119 | + assertEquals(7, comma.beginColumn); |
| 120 | + } |
| 121 | + |
| 122 | + @Test |
| 123 | + void recognizesFunctionBodyAndFollowingStatement() throws Exception { |
| 124 | + String body = "SELECT 'a;''b'::text;\n"; |
| 125 | + String sql = |
| 126 | + "CREATE FUNCTION f() RETURNS text AS $fn$" + body + "$fn$ LANGUAGE SQL; SELECT 42;"; |
| 127 | + Statements statements = CCJSqlParserUtil.parseStatements(sql); |
| 128 | + assertEquals(2, statements.size()); |
| 129 | + assertEquals("SELECT 42", statements.get(1).toString()); |
| 130 | + org.junit.jupiter.api.Assertions |
| 131 | + .assertTrue(statements.get(0).toString().contains("$fn$" + body + "$fn$")); |
| 132 | + assertEquals(2, CCJSqlParserUtil.parseStatements(statements.toString()).size()); |
| 133 | + } |
| 134 | + |
| 135 | + @Test |
| 136 | + @Timeout(10) |
| 137 | + void handlesLongBodiesAndOverlappingDelimiterPrefixes() throws Exception { |
| 138 | + String body = "$ta$tagX $tagtagX\n".repeat(12000); |
| 139 | + String sql = "SELECT $tagtag$" + body + "$tagtag$"; |
| 140 | + PlainSelect select = (PlainSelect) CCJSqlParserUtil.parse(new StringReader(sql)); |
| 141 | + assertEquals(body, select.getSelectItem(0).getExpression(StringValue.class).getValue()); |
| 142 | + PlainSelect streamed = (PlainSelect) CCJSqlParserUtil.parse( |
| 143 | + new java.io.ByteArrayInputStream(sql.getBytes(StandardCharsets.UTF_8)), "UTF-8"); |
| 144 | + assertEquals(body, streamed.getSelectItem(0).getExpression(StringValue.class).getValue()); |
| 145 | + } |
| 146 | + |
| 147 | + @ParameterizedTest |
| 148 | + @ValueSource(strings = {"SELECT $tag$missing", "SELECT $Tag$wrong$tag$", "SELECT $t$ends$t", |
| 149 | + "SELECT $a$text$b$", "SELECT $$missing"}) |
| 150 | + void rejectsUnterminatedOrMismatchedTags(String sql) { |
| 151 | + assertThrows(JSQLParserException.class, |
| 152 | + () -> CCJSqlParserUtil.parse(sql, parser -> parser.withTimeOut(1000))); |
| 153 | + } |
| 154 | +} |
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