| /* |
| * 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.iotdb.db.utils; |
| |
| import org.apache.iotdb.db.conf.IoTDBConfig; |
| import org.apache.iotdb.db.conf.IoTDBDescriptor; |
| import org.apache.iotdb.db.exception.query.QueryProcessException; |
| |
| import org.apache.tsfile.common.constant.TsFileConstant; |
| import org.apache.tsfile.enums.TSDataType; |
| import org.junit.Test; |
| |
| import static org.junit.Assert.assertEquals; |
| |
| public class TypeInferenceUtilsTest { |
| |
| @Test |
| public void isNumberTest() { |
| String[] values = { |
| "123", |
| "123.123", |
| "-123.123", |
| "+123.123", |
| ".123", |
| String.valueOf(Integer.MAX_VALUE), |
| String.valueOf(Integer.MIN_VALUE), |
| String.valueOf(Double.MAX_VALUE), |
| String.valueOf(Double.MIN_VALUE), |
| "abc", |
| "123.", |
| "123a", |
| TsFileConstant.PATH_SEPARATOR, |
| "123.1.23", |
| "77123 ", |
| " 7112324 " |
| }; |
| boolean[] results = { |
| true, true, true, true, true, true, true, true, true, false, true, false, false, false, true, |
| true |
| }; |
| |
| for (int i = 0; i < values.length; i++) { |
| assertEquals(TypeInferenceUtils.isNumber(values[i]), results[i]); |
| } |
| } |
| |
| @Test |
| public void testInferType() throws QueryProcessException { |
| IoTDBConfig config = IoTDBDescriptor.getInstance().getConfig(); |
| Object[] values = { |
| 123, |
| "abc", |
| 123.123d, |
| true, |
| 123.1f, |
| "123", |
| "12.2", |
| "9999999999999999", |
| "true", |
| "77123 ", |
| " 7112324 ", |
| "16777217", // 2^24 + 1 |
| "16777216", // 2^24 |
| "271840880000000000000000", |
| "4.9387406015404442E17", |
| "4E5", |
| "1.0", |
| }; |
| TSDataType[] inferredTypes = { |
| TSDataType.INT32, |
| TSDataType.TEXT, |
| TSDataType.DOUBLE, |
| TSDataType.BOOLEAN, |
| TSDataType.FLOAT, |
| config.getIntegerStringInferType(), |
| config.getFloatingStringInferType(), |
| config.getIntegerStringInferType(), |
| config.getBooleanStringInferType(), |
| config.getIntegerStringInferType(), |
| config.getIntegerStringInferType(), |
| config.getIntegerStringInferType(), |
| config.getIntegerStringInferType(), |
| config.getFloatingStringInferType(), |
| config.getFloatingStringInferType(), |
| config.getFloatingStringInferType(), |
| config.getFloatingStringInferType() |
| }; |
| |
| for (int i = 0; i < values.length; i++) { |
| assertEquals(inferredTypes[i], TypeInferenceUtils.getPredictedDataType(values[i], true)); |
| } |
| } |
| |
| @Test |
| public void testNotInferType() { |
| Object[] values = {123, "abc", 123.123d, true, 123.1f, "123", "12.2", "true"}; |
| TSDataType[] encodings = { |
| TSDataType.INT32, |
| TSDataType.TEXT, |
| TSDataType.DOUBLE, |
| TSDataType.BOOLEAN, |
| TSDataType.FLOAT, |
| TSDataType.TEXT, |
| TSDataType.TEXT, |
| TSDataType.TEXT |
| }; |
| |
| for (int i = 0; i < values.length; i++) { |
| assertEquals(encodings[i], TypeInferenceUtils.getPredictedDataType(values[i], false)); |
| } |
| } |
| } |