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// Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.document.predicate;
import org.junit.Test;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
/**
* @author <a href="mailto:magnarn@yahoo-inc.com">Magnar Nedland</a>
*/
public class PredicateParserTest {
@Test
public void requireThatParseErrorThrowsException() {
try {
Predicate.fromString("a in b");
fail("Expected an exception");
} catch (IllegalArgumentException e) {
assertEquals("line 1:5 no viable alternative at input 'b'", e.getMessage());
}
}
@Test
public void requireThatLexerErrorThrowsException() {
try {
Predicate.fromString("a-b in [b]");
fail("Expected an exception");
} catch (IllegalArgumentException e) {
assertEquals("line 1:2 no viable alternative at character 'b'", e.getMessage());
}
}
@Test
public void requireThatSingleValueLeafNodesParse() {
assertParsesTo("a in [b]", "a in [b]");
assertParsesTo("0 in [1]", "0 in [1]");
assertParsesTo("in in [in]", "in in [in]");
assertParsesTo("and in [or]", "and in [or]");
assertParsesTo("not in [not]", "not in [not]");
assertParsesTo("'-234' in ['+200']", "'-234' in ['+200']");
assertParsesTo("string in ['!@#$%^&*()[]']", "'string' in ['!@#$%^&*()[]']");
assertParsesTo("a in [b]", "a in [b]");
assertParsesTo("string in ['foo\\\\_\"\\t\\n\\f\\rbar']",
"string in ['foo\\\\_\\x22\\t\\n\\f\\rbar']");
assertParsesTo("'\\xC3\\xB8' in [b]", "'ø' in [b]");
assertParsesTo("'\\xEF\\xBF\\xBD' in [b]", "'\\xf8' in [b]");
assertParsesTo("'\\xEF\\xBF\\xBD' in [b]", "'\\xef\\xbf\\xbd' in ['b']");
assertParsesTo("'\\xE4\\xB8\\x9C\\xE8\\xA5\\xBF' in ['\\xE8\\x87\\xAA\\xE8\\xA1\\x8C\\xE8\\xBD\\xA6']",
"'东西' in ['自行车']");
assertParsesTo("true in [false]", "true in [false]");
}
@Test
public void requireThatMultiValueLeafNodesParse() {
assertParsesTo("a in [b]", "a in [b]");
assertParsesTo("0 in [1]", "0 in [1]");
assertParsesTo("in in [and, in]", "in in [in, and]");
assertParsesTo("a in [b, c, d, e, f]", "'a' in ['b', 'c', 'd', 'e', 'f']");
}
@Test
public void requireThatBothSingleAndDoubleQuotesWork() {
assertParsesTo("a in [b]", "'a' in ['b']");
assertParsesTo("a in [b]", "\"a\" in [\"b\"]");
assertParsesTo("'a\\x27' in [b]", "'a\\'' in ['b']");
assertParsesTo("'a\"' in [b]", "\"a\\\"\" in [\"b\"]");
}
@Test
public void requireThatRangeLeafNodesParse() {
assertParsesTo("a in [0..100]", "a in [0..100]");
assertParsesTo("0 in [..100]", "0 in [..100]");
assertParsesTo("0 in [0..]", "0 in [0..]");
assertParsesTo("0 in [..]", "0 in [..]");
assertParsesTo("a in [-100..100]", "a in [-100..+100]");
assertParsesTo("a in [-9223372036854775808..9223372036854775807]",
"a in [-9223372036854775808..+9223372036854775807]");
}
@Test
public void requireThatRangePartitionsAreIgnored() {
assertParsesTo("a in [0..100]", "a in [0..100 (a=0-99,a=100+[..0])]");
assertParsesTo("a in [-100..0]", "a in [-100..0 (a=-0-99,a=-100+[..0])]");
assertParsesTo("a in [-9223372036854775808..0]", "a in [-9223372036854775808..0 (a=-0-9223372036854775808)]");
assertParsesTo("a in [2..8]", "a in [2..8 (a=0+[2..8])]");
assertParsesTo("a in [0..8]", "a in [0..8 (a=0+[..8])]");
assertParsesTo("a in [2..9]", "a in [2..9 (a=0+[2..])]");
}
@Test
public void requireThatNotInSetWorks() {
assertParsesTo("a not in [b]", "a not in [b]");
}
@Test
public void requireThatConjunctionWorks() {
assertParsesTo("a in [b] and c in [d]", "a in [b] and c in [d]");
assertParsesTo("a in [b] and c in [d] and e in [f]", "a in [b] and c in [d] and e in [f]");
}
@Test
public void requireThatDisjunctionWorks() {
assertParsesTo("a in [b] or c in [d]", "a in [b] or c in [d]");
assertParsesTo("a in [b] or c in [d] or e in [f]", "a in [b] or c in [d] or e in [f]");
}
@Test
public void requireThatParenthesesWorks() {
assertParsesTo("a in [b] or c in [d]",
"(a in [b]) or (c in [d])");
assertParsesTo("a in [b] or c in [d] or e in [f]",
"(((a in [b]) or c in [d]) or e in [f])");
assertParsesTo("(a in [b] and c in [d]) or e in [f]",
"a in [b] and c in [d] or e in [f]");
assertParsesTo("a in [b] and (c in [d] or e in [f])",
"a in [b] and (c in [d] or e in [f])");
assertParsesTo("a in [b] and (c in [d] or e in [f]) and g in [h]",
"a in [b] and (c in [d] or e in [f]) and g in [h]");
}
@Test
public void requireThatNotOutsideParenthesesWorks() {
assertParsesTo("a not in [b]", "not (a in [b])");
}
@Test
public void requireThatConjunctionsCanGetMoreThanTwoChildren() {
Predicate p = Predicate.fromString("a in [b] and c in [d] and e in [f] and g in [h]");
assertTrue(p instanceof Conjunction);
assertEquals(4, ((Conjunction)p).getOperands().size());
}
@Test
public void requireThatDisjunctionsCanGetMoreThanTwoChildren() {
Predicate p = Predicate.fromString("a in [b] or c in [d] or e in [f] or g in [h]");
assertTrue(p instanceof Disjunction);
assertEquals(4, ((Disjunction)p).getOperands().size());
}
@Test
public void requireThatBooleanCanBeParsed() {
assertParsesTo("true", "true");
assertParsesTo("false", "false");
assertParsesTo("true or false", "true or false");
assertParsesTo("false and true", "false and true");
}
private static void assertParsesTo(String expected, String predicate_str) {
assertEquals(expected, // TODO: Predicate.fromString(expected)
Predicate.fromString(predicate_str).toString());
}
}
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