| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License 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 org.apache.lucene.expressions.js; |
| |
| import java.text.ParseException; |
| |
| import org.apache.lucene.expressions.Expression; |
| import org.apache.lucene.util.LuceneTestCase; |
| |
| public class TestJavascriptCompiler extends LuceneTestCase { |
| |
| public void testValidCompiles() throws Exception { |
| assertNotNull(JavascriptCompiler.compile("100")); |
| assertNotNull(JavascriptCompiler.compile("valid0+100")); |
| assertNotNull(JavascriptCompiler.compile("valid0+\n100")); |
| assertNotNull(JavascriptCompiler.compile("logn(2, 20+10-5.0)")); |
| } |
| |
| public void testValidVariables() throws Exception { |
| doTestValidVariable("object.valid0"); |
| doTestValidVariable("object0.object1.valid1"); |
| doTestValidVariable("array0[1]"); |
| doTestValidVariable("array0[1].x"); |
| doTestValidVariable("multiarray[0][0]"); |
| doTestValidVariable("multiarray[0][0].x"); |
| doTestValidVariable("strindex['hello']"); |
| doTestValidVariable("strindex[\"hello\"]", "strindex['hello']"); |
| doTestValidVariable("empty['']"); |
| doTestValidVariable("empty[\"\"]", "empty['']"); |
| doTestValidVariable("strindex['\u304A\u65E9\u3046\u3054\u3056\u3044\u307E\u3059']"); |
| doTestValidVariable("strindex[\"\u304A\u65E9\u3046\u3054\u3056\u3044\u307E\u3059\"]", |
| "strindex['\u304A\u65E9\u3046\u3054\u3056\u3044\u307E\u3059']"); |
| doTestValidVariable("escapes['\\\\\\'']"); |
| doTestValidVariable("escapes[\"\\\\\\\"\"]", "escapes['\\\\\"']"); |
| doTestValidVariable("mixed[23]['key'].sub.sub"); |
| doTestValidVariable("mixed[23]['key'].sub.sub[1]"); |
| doTestValidVariable("mixed[23]['key'].sub.sub[1].sub"); |
| doTestValidVariable("mixed[23]['key'].sub.sub[1].sub['abc']"); |
| doTestValidVariable("method.method()"); |
| doTestValidVariable("method.getMethod()"); |
| doTestValidVariable("method.METHOD()"); |
| doTestValidVariable("method['key'].method()"); |
| doTestValidVariable("method['key'].getMethod()"); |
| doTestValidVariable("method['key'].METHOD()"); |
| doTestValidVariable("method[23][\"key\"].method()", "method[23]['key'].method()"); |
| doTestValidVariable("method[23][\"key\"].getMethod()", "method[23]['key'].getMethod()"); |
| doTestValidVariable("method[23][\"key\"].METHOD()", "method[23]['key'].METHOD()"); |
| } |
| |
| void doTestValidVariable(String variable) throws Exception { |
| doTestValidVariable(variable, variable); |
| } |
| |
| void doTestValidVariable(String variable, String output) throws Exception { |
| Expression e = JavascriptCompiler.compile(variable); |
| assertNotNull(e); |
| assertEquals(1, e.variables.length); |
| assertEquals(output, e.variables[0]); |
| } |
| |
| public void testInvalidVariables() throws Exception { |
| doTestInvalidVariable("object.0invalid"); |
| doTestInvalidVariable("0.invalid"); |
| doTestInvalidVariable("object..invalid"); |
| doTestInvalidVariable(".invalid"); |
| doTestInvalidVariable("negative[-1]"); |
| doTestInvalidVariable("float[1.0]"); |
| doTestInvalidVariable("missing_end['abc]"); |
| doTestInvalidVariable("missing_end[\"abc]"); |
| doTestInvalidVariable("missing_begin[abc']"); |
| doTestInvalidVariable("missing_begin[abc\"]"); |
| doTestInvalidVariable("dot_needed[1]sub"); |
| doTestInvalidVariable("dot_needed[1]sub"); |
| doTestInvalidVariable("opposite_escape['\\\"']"); |
| doTestInvalidVariable("opposite_escape[\"\\'\"]"); |
| } |
| |
| void doTestInvalidVariable(String variable) { |
| expectThrows(ParseException.class, () -> { |
| JavascriptCompiler.compile(variable); |
| }); |
| } |
| |
| public void testInvalidLexer() throws Exception { |
| ParseException expected = expectThrows(ParseException.class, () -> { |
| JavascriptCompiler.compile("\n ."); |
| }); |
| assertTrue(expected.getMessage().contains("unexpected character '.' on line (2) position (1)")); |
| } |
| |
| public void testInvalidCompiles() throws Exception { |
| expectThrows(ParseException.class, () -> { |
| JavascriptCompiler.compile("100 100"); |
| }); |
| |
| expectThrows(ParseException.class, () -> { |
| JavascriptCompiler.compile("7*/-8"); |
| }); |
| |
| expectThrows(ParseException.class, () -> { |
| JavascriptCompiler.compile("0y1234"); |
| }); |
| |
| expectThrows(ParseException.class, () -> { |
| JavascriptCompiler.compile("500EE"); |
| }); |
| |
| expectThrows(ParseException.class, () -> { |
| JavascriptCompiler.compile("500.5EE"); |
| }); |
| } |
| |
| public void testEmpty() { |
| expectThrows(ParseException.class, () -> { |
| JavascriptCompiler.compile(""); |
| }); |
| |
| expectThrows(ParseException.class, () -> { |
| JavascriptCompiler.compile("()"); |
| }); |
| |
| expectThrows(ParseException.class, () -> { |
| JavascriptCompiler.compile(" \r\n \n \t"); |
| }); |
| } |
| |
| public void testNull() throws Exception { |
| expectThrows(NullPointerException.class, () -> { |
| JavascriptCompiler.compile(null); |
| }); |
| } |
| |
| public void testWrongArity() throws Exception { |
| ParseException expected = expectThrows(ParseException.class, () -> { |
| JavascriptCompiler.compile("tan()"); |
| fail(); |
| }); |
| assertEquals("Invalid expression 'tan()': Expected (1) arguments for function call (tan), but found (0).", expected.getMessage()); |
| assertEquals(expected.getErrorOffset(), 0); |
| |
| expected = expectThrows(ParseException.class, () -> { |
| JavascriptCompiler.compile("tan(1, 1)"); |
| }); |
| assertTrue(expected.getMessage().contains("arguments for function call")); |
| |
| expected = expectThrows(ParseException.class, () -> { |
| JavascriptCompiler.compile(" tan()"); |
| }); |
| assertEquals("Invalid expression ' tan()': Expected (1) arguments for function call (tan), but found (0).", expected.getMessage()); |
| assertEquals(expected.getErrorOffset(), 1); |
| |
| expected = expectThrows(ParseException.class, () -> { |
| JavascriptCompiler.compile("1 + tan()"); |
| }); |
| assertEquals("Invalid expression '1 + tan()': Expected (1) arguments for function call (tan), but found (0).", expected.getMessage()); |
| assertEquals(expected.getErrorOffset(), 4); |
| } |
| |
| public void testVariableNormalization() throws Exception { |
| // multiple double quotes |
| Expression x = JavascriptCompiler.compile("foo[\"a\"][\"b\"]"); |
| assertEquals("foo['a']['b']", x.variables[0]); |
| |
| // single and double in the same var |
| x = JavascriptCompiler.compile("foo['a'][\"b\"]"); |
| assertEquals("foo['a']['b']", x.variables[0]); |
| |
| // escapes remain the same in single quoted strings |
| x = JavascriptCompiler.compile("foo['\\\\\\'\"']"); |
| assertEquals("foo['\\\\\\'\"']", x.variables[0]); |
| |
| // single quotes are escaped |
| x = JavascriptCompiler.compile("foo[\"'\"]"); |
| assertEquals("foo['\\'']", x.variables[0]); |
| |
| // double quotes are unescaped |
| x = JavascriptCompiler.compile("foo[\"\\\"\"]"); |
| assertEquals("foo['\"']", x.variables[0]); |
| |
| // backslash escapes are kept the same |
| x = JavascriptCompiler.compile("foo['\\\\'][\"\\\\\"]"); |
| assertEquals("foo['\\\\']['\\\\']", x.variables[0]); |
| } |
| } |